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110-584: Administratively most of the territory of the lowland is part of the Sakha Republic (Yakutia). There are inhabited centers of population in the lowlands such as Chokurdakh , Olenegorsk and Nizhneyansk , but these are very few and scattered. The lowland is named after the Yana River in the west and the Indigirka River in the east and is crossed by both rivers in their middle and lower courses. The area

220-558: A Latinate word denoting a woodland, may be admitted; in a specific technical sense it is restricted to denoting the species of trees that comprise the woodlands of a region, as in its sense in the subject of silviculture . The resorting to sylva in English indicates more precisely the denotation that the use of forest intends. The first known forests on Earth arose in the Middle Devonian (approximately 390 million years ago ), with

330-424: A canopy cover of more than 10 percent, or trees able to reach these thresholds in situ . It does not include land that is predominantly under agricultural or urban use." Using this definition, Global Forest Resources Assessment 2020 found that forests covered 4.06 billion hectares (10.0 billion acres; 40.6 million square kilometres; 15.7 million square miles), or approximately 31 percent of

440-659: A "tendency toward syncretism ", as evidenced by the locals sometimes first inviting a shaman, and then an Orthodox priest to carry out their rites in connection with some event in their life. According to the Information Center under the President of Sakha Republic (Информационный центр при Президенте РС(Я)), the religious demography of the republic was as follows: Orthodoxy: 44.9%, Shamanism: 26.2%, Non-religious: 23.0%, New religious movements: 2.4%, Islam: 1.2%, Buddhism: 1.0%, Protestantism: 0.9%, Catholicism: 0.4%. According to

550-467: A 2012 survey, 37.8% of the population of Sakha adheres to the Russian Orthodox Church , 13% to Tengrism or Sakha shamanism , 2% to Islam , 1% are unaffiliated Christians , 1% to forms of Protestantism , and 0.4% to Tibetan Buddhism . In addition, 26% of the population deems itself atheist , 17% is "spiritual but not religious", and 1.8% follows other religions or did not give an answer to

660-452: A Sakha lawyer and city councilor by the name of Vasily Nikiforov, which criticized the policies and effects of Russian colonialism, and demanded representation in the State Duma . The Yakut Union acted to make the city council of Yakutsk stand down and was joined by thousands of Sakha from the countryside, but the leaders were arrested and the movement fizzled out by April 1906. Their demand for

770-723: A Sakha representative in the Duma, however, was granted. Sakha was home to the last stage of the Russian Civil War, the Yakut Revolt . On April 27, 1922, former Yakutsk Oblast was proclaimed the Yakut ASSR , although in fact the eastern part of the territory, including the city of Yakutsk, was controlled by the White Russians . The early Soviet period saw a flourishing of Sakha literature as men such as Platon Oyunsky wrote down in writing

880-464: A combination of measures aimed at increasing forest carbon stocks, andsustainable timber offtake will generate the largest carbon sequestration benefit. The term forest-dependent people is used to describe any of a wide variety of livelihoods that are dependent on access to forests, products harvested from forests, or ecosystem services provided by forests, including those of Indigenous peoples dependent on forests. In India , approximately 22 percent of

990-405: A different classification of forest vegetation is often used: tree, shrub, herb, and moss layers (see stratification (vegetation) ). Forests are classified differently and to different degrees of specificity. One such classification is in terms of the biomes in which they exist, combined with leaf longevity of the dominant species (whether they are evergreen or deciduous ). Another distinction

1100-437: A few main pathways, including increase in commercial tree plantations, adoption of agroforestry techniques by small farmers, or spontaneous regeneration when former agricultural land is abandoned. It can be motivated by the economic benefits of forests, the ecosystem services forests provide, or cultural changes where people increasingly appreciate forests for their spiritual, aesthetic, or otherwise intrinsic value. According to

1210-409: A forest may be of a great variety of species (as in tropical rainforests and temperate deciduous forests ), or relatively few species over large areas (e.g., taiga and arid montane coniferous forests). The biodiversity of forests also encompasses shrubs , herbaceous plants, mosses , ferns , lichens , fungi , and a variety of animals . Trees rising up to 35 meters (115 ft) in height add

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1320-542: A forested area by cutting or burning, either to harvest timber or to make way for farming. Most deforestation today occurs in tropical forests. The vast majority of this deforestation is because of the production of four commodities: wood , beef , soy , and palm oil . Over the past 2,000 years, the area of land covered by forest in Europe has been reduced from 80% to 34%. Large areas of forest have also been cleared in China and in

1430-598: A king of the Megino-Khangalassky Sakha, began a Sakha conspiracy by allowing the first stockade construction. In August 1638, the Moscow Government formed a new administrative unit with the administrative center of Lensky Ostrog (Fort Lensky), the future city of Yakutsk , which had been founded by Pyotr Beketov in 1632. The arrival of Russian settlers at the remote Russkoye Ustye in the Indigirka delta

1540-448: A legal term, as seen in Latin texts such as Magna Carta , to denote uncultivated land that was legally designated for hunting by feudal nobility (see royal forest ). These hunting forests did not necessarily contain any trees. Because that often included significant areas of woodland, "forest" eventually came to connote woodland in general, regardless of tree density. By the beginning of

1650-403: A locale with more open space between trees, and distinguish kinds of woodlands as open forests and closed forests , premised on their crown covers . Finally, sylva (plural sylvae or, less classically, sylvas ) is a peculiar English spelling of the Latin silva , denoting a "woodland", and has precedent in English, including its plural forms. While its use as a synonym of forest , and as

1760-415: A maximum width in its central part of 300 kilometers (190 mi). The average height of the plain is between 30 meters (98 ft) and 80 meters (260 ft) above sea level. There is an immense number of lakes dotting the lowlands, the largest of which are Lake Bustakh with an area of 249 square kilometers (96 sq mi), as well as Orotko and Soluntakh . The Yana-Indigirka Lowland also includes

1870-416: A population of one million. Sakha comprises half of the area of its governing Far Eastern Federal District , and is the world's largest country subdivision , covering over 3,083,523 square kilometers (1,190,555 sq mi). Yakutsk , which is the world's coldest major city, is its capital and largest city. The republic has a reputation for an extreme and severe climate, with the second lowest temperatures in

1980-579: A region, releasing water from their leaves in anticipation of seasonal rains to trigger the wet season early. Because of this, seasonal rainfall in the Amazon begins two to three months earlier than the climate would otherwise allow. Deforestation in the Amazon and anthropogenic climate change hold the potential to interfere with this process, causing the forest to pass a threshold where it transitions into savanna. Deforestation threatens many forest ecosystems. Deforestation occurs when humans remove trees from

2090-482: A shaman temple in downtown Yakutsk in 2002. Currently, while Orthodox Christianity maintains a following (however, with very few priests willing to be stationed outside of Yakutsk), there is interest and activity toward renewing the traditional religions. As of 2008, Orthodox leaders described the worldview of the republic's indigenous population (or, rather, those among the population who are not completely indifferent to religion) as dvoyeverie (dual belief system), or

2200-722: A vertical dimension to the area of land that can support plant and animal species, opening up numerous ecological niches for arboreal animal species, epiphytes , and various species that thrive under the regulated microclimate created under the canopy. Forests have intricate three-dimensional structures that increase in complexity with lower levels of disturbance and greater variety of tree species. The biodiversity of forests varies considerably according to factors such as forest type, geography, climate, and soils – in addition to human use. Most forest habitats in temperate regions support relatively few animal and plant species, and species that tend to have large geographical distributions, while

2310-412: A wide range of characteristics. Generally, richer households derive more cash value from forest resources, whereas among poorer households, forest resources are more important for home consumption and increase community resilience. Forests are fundamental to the culture and livelihood of indigenous people groups that live in and depend on forests, many of which have been removed from and denied access to

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2420-415: Is 0.31 per km (2019), which is one of the lowest among Russian districts. Urban population: 65,45% (2018). Source: Russian Federal State Statistics Service According to the 2021 Census , the ethnic composition was: Historical population figures are shown below: The official languages are both Russian and Sakha , also known as Yakut, which is spoken by roughly half of the republic's population. In

2530-571: Is also believed to date from the 17th century. The Siberian Governorate was established as part of the Russian Empire in 1708. Russian settlers began to form a community in the 18th century, which adopted certain Sakha customs and was often called Yakutyane (Якутя́не) or Lena Early Settlers (ленские старожилы). However, the influx of later settlers had assimilated themselves into the Russian mainstream by

2640-401: Is based on tree densities measured on over 400,000 plots. It remains subject to a wide margin of error, not least because the samples are mainly from Europe and North America. Forests can also be classified according to the amount of human alteration. Old-growth forest contains mainly natural patterns of biodiversity in established seral patterns, and they contain mainly species native to

2750-630: Is high compared to other vegetation communities. Much of this biomass occurs below ground in the root systems and as partially decomposed plant detritus . The woody component of a forest contains lignin , which is relatively slow to decompose compared with other organic materials such as cellulose or carbohydrate. The world's forests contain about 606 gigatonnes of living biomass (above- and below-ground) and 59 gigatonnes of dead wood. The total biomass has decreased slightly since 1990, but biomass per unit area has increased. Forest ecosystems broadly differ based on climate ; latitudes 10° north and south of

2860-749: Is mostly flat and very marshy, its northern limits extending for over 600 kilometers (370 mi) from the Buor Khaya Gulf of the Laptev Sea in the west to the delta of river Indigirka in the East Siberian Sea in the east. It is limited by the Kyundyulyun , the northern end of the Selennyakh Range and the Polousny Range in the south. The Yana-Indigirka Lowland is roughly crescent-shaped, reaching

2970-531: Is not on track to meet the target of the United Nations Strategic Plan for Forests to increase forest area by 3 percent by 2030. While deforestation is taking place in some areas, new forests are being established through natural expansion or deliberate efforts in other areas. As a result, the net loss of forest area is less than the rate of deforestation; and it, too, is decreasing: from 7.8 million hectares (19 million acres) per year in

3080-527: Is of paleontological significance, as it contains bodies of prehistoric animals from the Pleistocene Epoch , preserved in ice or permafrost . In 2015, the frozen bodies of Dina and Uyan the cave lion cubs were found. Bodies of Yuka and another woolly mammoth from Oymyakon , a woolly rhinoceros from the Kolyma River , and bison and horses from Yukagir have also been found. In June 2019,

3190-428: Is that forests can turn from a carbon sink to a carbon source if plant diversity, density or forest area decreases, as has been observed in different tropical forests The typical tropical forest may become a carbon source by the 2060s. An assessment of European forests found early signs of carbon sink saturation, after decades of increasing strength. The Intergovernmental Panel on Climate Change (IPCC) concluded that

3300-471: Is the Kondakov Plateau . The lowlands have a thermokarst ground, composed of various kinds of marine, river and lake sediments with a high content of fossil ice owing to the prevalence of permafrost . The features of the local relief include alas depressions with lakes and swamps, as well as polygonal soils . Along the banks of rivers, seas and lakes there are baydzharakh mounds. The climate of

3410-416: Is whether the forests are composed predominantly of broadleaf trees, coniferous (needle-leaved) trees, or mixed. The number of trees in the world, according to a 2015 estimate, is 3 trillion, of which 1.4 trillion are in the tropics or sub-tropics, 0.6 trillion in the temperate zones, and 0.7 trillion in the coniferous boreal forests. The 2015 estimate is about eight times higher than previous estimates, and

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3520-439: Is −32 °C (−26 °F) by the seashore and −36 °C (−33 °F) inland. Summers usually stay chilly, especially by the seashore. At the northern limits, above the 69th parallel , the lowland seashores are covered with moss, lichen and shrub tundra . In the southern part there are forest tundra zones, especially along river valleys, the forest cover consisting of thinly scattered larch . There are reindeer herds in

3630-462: The Arctic Circle and all of it is covered by permafrost which greatly influences the region's ecology and limits forests in the southern region. Arctic and subarctic tundra define the middle region, where lichen and moss grow as great green carpets and are favorite pastures for reindeer . In the southern part of the tundra belt, scattered stands of dwarf Siberian pine and larch grow along

3740-593: The Equator , and temperate forests at the middle latitudes . Forests form in areas of the Earth with high rainfall, while drier conditions produce a transition to savanna . However, in areas with intermediate rainfall levels, forest transitions to savanna rapidly when the percentage of land that is covered by trees drops below 40 to 45 percent. Research conducted in the Amazon rainforest shows that trees can alter rainfall rates across

3850-639: The Evenks and Yukaghir . Migrating from the area around Lake Baikal , the Turkic Sakha people first settled along the middle Lena river sometime between the 9th and 16th centuries, likely in several waves, bringing the pastoral economic system of Central Asia with them. The Russians colonised and incorporated the area as the Yakutsk Oblast into the Tsardom of Russia in the early-mid 17th century, obliging

3960-630: The Medieval Latin foresta , denoting "open wood", Carolingian scribes first used foresta in the capitularies of Charlemagne , specifically to denote the royal hunting grounds of the king. The word was not endemic to the Romance languages , e.g., native words for forest in the Romance languages derived from the Latin silva , which denoted "forest" and " wood(land) " ( cf. the English sylva and sylvan ;

4070-572: The Northern Hemisphere being recorded in Verkhoyansk and Oymyakon (second only to Summit Camp , Greenland ), and regular winter averages commonly dipping below −35 °C (−31 °F) in Yakutsk. The hypercontinental tendencies also result in warm summers for much of the republic. Sakha was first home to hunting-gathering and reindeer herding Tungusic and Paleosiberian peoples such as

4180-571: The Proto-Germanic * furhísa- , * furhíþija- , denoting "a fir-wood , coniferous forest", from the Proto-Indo-European * perk u- , denoting "a coniferous or mountain forest , wooded height" all attest to the Frankish * forhist . Uses of forest in English to denote any uninhabited and unenclosed area are presently considered archaic. The Norman rulers of England introduced the word as

4290-477: The Russian Orthodox Church and required to take Orthodox Christian names, but in practice generally continued to follow traditional religions. During the Soviet era, most or all of the shamans died without successors. In the 1990s, a neopagan shamanist movement called aiyy yeurekhé was founded by the controversial journalist Ivan Ukhkhan and a philologist calling himself Téris. This group and others cooperated to build

4400-498: The Soviet period. This was also the beginning of geological prospecting, mining , and local lead production. The first steam-powered ships and barges arrived. Sakha's remoteness, compared to the rest of Siberia, made it a place of exile of choice for both Tsarist and Communist governments of Russia. Among the famous Tsarist-era exiles were the democratic writer Nikolay Chernyshevsky ; Doukhobors , conscientious objectors whose story

4510-537: The Special Report on Global Warming of 1.5 °C of the Intergovernmental Panel on Climate Change , to avoid temperature rise by more than 1.5 degrees above pre-industrial levels, there will need to be an increase in global forest cover equal to the land area of Canada (10 million square kilometres (3.9 million square miles)) by 2050. China instituted a ban on logging, beginning in 1998, due to

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4620-581: The World Resources Institute recorded that only 20% of the world's original forests remained in large intact tracts of undisturbed forest. More than 75% of these intact forests lie in three countries: the boreal forests of Russia and Canada, and the rainforest of Brazil. According to Food and Agriculture Organization 's (FAO) Global Forest Resources Assessment 2020 , an estimated 420 million hectares (1.0 billion acres) of forest have been lost worldwide through deforestation since 1990, but

4730-418: The boreal region and in the seasonally dry tropics. At high latitudes, north of the main zone of boreal forestland, growing conditions are not adequate to maintain a continuously closed forest cover , so tree cover is both sparse and discontinuous. This vegetation is variously called open taiga , open lichen woodland, and forest tundra. A savanna is a mixed woodland – grassland ecosystem characterized by

4840-407: The equator are mostly covered in tropical rainforest , and the latitudes between 53°N and 67°N have boreal forest . As a general rule, forests dominated by angiosperms ( broadleaf forests ) are more species-rich than those dominated by gymnosperms ( conifer , montane , or needleleaf forests ), although exceptions exist. The trees that form the principal structural and defining component of

4950-408: The slash and burn practices of swidden agriculture or shifting cultivation . The loss and re-growth of forests lead to a distinction between two broad types of forest: primary or old-growth forest and secondary forest . There are also many natural factors that can cause changes in forests over time, including forest fires , insects , diseases , weather, competition between species, etc. In 1997,

5060-429: The 1990s to 4.7 million hectares (12 million acres) per year during 2010–2020. In absolute terms, the global forest area decreased by 178 million hectares (440 million acres; 1,780,000 square kilometres; 690,000 square miles) between 1990 and 2020, which is an area about the size of Libya. Forests provide a diversity of ecosystem services including: The main ecosystem services can be summarized in

5170-514: The 1990s. In 2015, a study for Nature Climate Change showed that the trend has recently been reversed, leading to an "overall gain" in global biomass and forests. This gain is due especially to reforestation in China and Russia. New forests are not equivalent to old growth forests in terms of species diversity, resilience, and carbon capture. On 7 September 2015, the FAO released a new study stating that over

5280-605: The 2021 census, 95% of Yakuts, 72% of Evenks and 60% of Evens declared Sakha as their native language. The Sakha language is a member of the Turkic language family, belonging to the Siberian branch. It is closely related to the Dolgan language of the former Taymyr Dolgano-Nenets Autonomous Okrug . The Sakha Republic is also home to many of the world's speakers of Tungusic languages , primarily of Evenki and Even . Additionally, Chukchi and

5390-477: The 20th century. In an administrative reform of 1782, Irkutsk Governorate was created. In 1805, Yakutsk Oblast was split from Irkutsk Governorate. Yakutsk Oblast in the early 19th century marked the easternmost territory of the Russian Empire, including such Far Eastern (Pacific) territories as were acquired, known as Okhotsk Okrug within Yakutsk Oblast. With the formation of Primorskaya Oblast in 1856,

5500-459: The Earth's plant biomass . Net primary production is estimated at 21.9 gigatonnes of biomass per year for tropical forests , 8.1 for temperate forests , and 2.6 for boreal forests . Forests form distinctly different biomes at different latitudes and elevations, and with different precipitation and evapotranspiration rates. These biomes include boreal forests in subarctic climates, tropical moist forests and tropical dry forests around

5610-699: The Italian, Spanish, and Portuguese selva ; the Romanian silvă ; the Old French selve ). Cognates of forest in Romance languages—e.g., the Italian foresta , Spanish and Portuguese floresta , etc.—are all ultimately derivations of the French word. The precise origin of Medieval Latin foresta is obscure. Some authorities claim the word derives from the Late Latin phrase forestam silvam , denoting "the outer wood"; others claim

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5720-514: The Russian territories of the Pacific were detached from Sakha. The Russians established agriculture in the Lena River basin. The members of religious groups who were exiled to Sakha in the second half of the 19th century began to grow wheat , oats , and potatoes . The fur trade established a cash economy. Industry and transport began to develop at the end of the 19th century and in the beginning of

5830-521: The Sakha by the 17th century. The Tsardom of Russia began its conquest of the region in the 17th century, moving east after the defeat of the Khanate of Sibir . Tygyn , a king of the Khangalassky Sakha, granted territory for Russian settlement in return for a military pact that included war against indigenous rebels of all North Eastern Asia ( Magadan , Chukotka , Kamchatka and Sakhalin ). Kull,

5940-452: The U.S. state of Wisconsin , forests managed by indigenous people have more plant diversity, fewer invasive species, higher tree regeneration rates, and higher volume of trees. Forest management has changed considerably over the last few centuries, with rapid changes from the 1980s onward, culminating in a practice now referred to as sustainable forest management . Forest ecologists concentrate on forest patterns and processes, usually with

6050-903: The Yakut language) as the Evenk and Yukaghir exonyms for the Yakuts. It is pronounced as Haka by the Dolgans , whose language is a close relative of the Yakut language . Sakha stretches to the Henrietta Island in the far north and is washed by the Laptev and Eastern Siberian Seas of the Arctic Ocean. These waters, the coldest and iciest of all seas in the Northern Hemisphere, are covered by ice for 9–10 months of

6160-641: The Yana-Indigirka Lowland, as well as wolves and arctic fox , among other animals. the waters of rivers and lakes are rich in various species of fish, such as Siberian vendace , chir , muksun , nelma and omul . Sakha Republic Sakha , officially the Republic of Sakha (Yakutia) , is the largest republic of Russia , located in the Russian Far East , along the Arctic Ocean , with

6270-460: The aim of elucidating cause-and-effect relationships. Foresters who practice sustainable forest management focus on the integration of ecological, social, and economic values, often in consultation with local communities and other stakeholders . Humans have generally decreased the amount of forest worldwide. Anthropogenic factors that can affect forests include logging, urban sprawl , human-caused forest fires , acid rain , invasive species , and

6380-539: The area as early as the 9th century or as late as the 16th century, though most likely there were several migrations. They migrated up north from around Lake Baikal to the middle Lena due to pressure by the Buryats, a Mongolic group. The Sakha displaced earlier, much smaller populations who lived on hunting and reindeer herding, introducing the pastoralist economy of Central Asia. The indigenous populations of Paleosiberian and Tungusic stock were mostly assimilated to

6490-584: The autonomous Yakut ASSR in 1922. The Soviet era saw the migration of many Slavs , specifically Russians and Ukrainians , into the area. On 27 September 1990, the area became the Yakutskaya-Sakha Soviet Socialist Republic, and on 27 December 1991, it became the Republic of Sakha (Yakutia). The exonym Yakut comes from the Evenk term Yako (also yoqo , ñoqa , or ñoka ), which was

6600-420: The basis of the variation of physiognomy corresponding to changes in altitude. Tropical dry forests are characteristic of areas in the tropics affected by seasonal drought. The seasonality of rainfall is usually reflected in the deciduousness of the forest canopy, with most trees being leafless for several months of the year. Under some conditions, such as less fertile soils or less predictable drought regimes,

6710-575: The canopy; but other taxa are also important. In the Southern Hemisphere , most coniferous trees (members of Araucariaceae and Podocarpaceae ) occur mixed with broadleaf species, and are classed as broadleaf-and-mixed forests. Temperate broadleaf and mixed forests include a substantial component of trees of the Anthophyta group. They are generally characteristic of the warmer temperate latitudes, but extend to cool temperate ones, particularly in

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6820-423: The children live. Canada has about 4 million square kilometres (1.5 million square miles) of forest land. More than 90% of forest land is publicly owned and about 50% of the total forest area is allocated for harvesting. These allocated areas are managed using the principles of sustainable forest management, which include extensive consultation with local stakeholders. About eight percent of Canada's forest

6930-517: The cutoff points are between a forest, woodland , and savanna . Under some definitions, to be considered a forest requires very high levels of tree canopy cover, from 60% to 100%, which excludes woodlands and savannas, which have a lower canopy cover . Other definitions consider savannas to be a type of forest, and include all areas with tree canopies over 10%. Some areas covered with trees are legally defined as agricultural areas, for example Norway spruce plantations, under Austrian forest law, when

7040-418: The density of trees, area of tree canopy cover, or area of the land occupied by the cross-section of tree trunks ( basal area ) meeting a particular threshold. This type of definition depends upon the presence of trees sufficient to meet the threshold, or at least of immature trees that are expected to meet the threshold once they mature. Under land-cover definitions, there is considerable variation on where

7150-411: The eastern United States , in which only 0.1% of land was left undisturbed. Almost half of Earth's forest area (49 percent) is relatively intact, while 9 percent is found in fragments with little or no connectivity. Tropical rainforests and boreal coniferous forests are the least fragmented, whereas subtropical dry forests and temperate oceanic forests are among the most fragmented. Roughly 80 percent of

7260-578: The erosion and flooding that it caused. In addition, ambitious tree-planting programmes in countries such as China, India, the United States, and Vietnam – combined with natural expansion of forests in some regions – have added more than 7 million hectares (17 million acres) of new forests annually. As a result, the net loss of forest area was reduced to 5.2 million hectares (13 million acres) per year between 2000 and 2010, down from 8.3 million hectares (21 million acres) annually in

7370-458: The evolution of cladoxylopsid plants like Calamophyton . Appeared in the Late Devonian , Archaeopteris was both tree-like and fern -like plant, growing to 20 metres (66 ft) in height or more. It quickly spread throughout the world, from the equator to subpolar latitudes. It is the first species known to cast shade due to its fronds and forming soil from its roots. Archaeopteris

7480-417: The forest ecosystem. Since 2002, the amount of land that is legally owned by or designated for indigenous peoples has broadly increased, but land acquisition in lower-income countries by multinational corporations, often with little or no consultation of indigenous peoples, has also increased. Research in the Amazon rainforest suggests that indigenous methods of agroforestry form reservoirs of biodiversity. In

7590-415: The fourteenth century, English texts used the word in all three of its senses: common, legal, and archaic. Other English words used to denote "an area with a high density of trees" are firth , frith , holt , weald , wold , wood , and woodland . Unlike forest , these are all derived from Old English and were not borrowed from another language. Some present classifications reserve woodland for denoting

7700-401: The higher latitudes of the Northern Hemisphere , as well as some warm temperate areas, especially on nutrient-poor or otherwise unfavourable soils. These forests are composed entirely, or nearly so, of coniferous species ( Coniferophyta ). In the Northern Hemisphere, pines Pinus , spruces Picea , larches Larix , firs Abies , Douglas firs Pseudotsuga , and hemlocks Tsuga make up

7810-669: The indigenous peoples of the area to pay fur tribute . While the initial period following the Russian conquest saw the Sakha population drop by 70%, the Imperial period also saw the expansion of the native Yakuts from the middle Lena along the Vilyuy River to the north and the east displacing other indigenous groups. Yakutia saw some of the last battles of the Russian Civil War , and the Bolshevik authorities re-organized Yakutsk Oblast into

7920-469: The lands on which they lived as part of global colonialism . Indigenous lands contain 36% or more of intact forest worldwide, host more biodiversity, and experience less deforestation. Indigenous activists have argued that degradation of forests and indigenous peoples' marginalization and land dispossession are interconnected. Other concerns among indigenous peoples include lack of Indigenous involvement in forest management and loss of knowledge related for

8030-493: The last 25 years the global deforestation rate has decreased by 50% due to improved management of forests and greater government protection. There is an estimated 726 million hectares (1.79 billion acres) of forest in protected areas worldwide. Of the six major world regions, South America has the highest share of forests in protected areas, at 31 percent. The area of such areas globally has increased by 191 million hectares (470 million acres) since 1990, but

8140-564: The lects of the Yukaghir language family are spoken in the northeast. Before the arrival of the Russian Empire, the majority of the local population was Tengrist , similar to the other Turkic people of Central Asia, or in Paleoasian indigenous shamanism with both 'light' (community leading) and 'dark' (healing through spirit journey) shamans. Under the Russians, the local population was converted to

8250-893: The lower course of the Omoloy River at the western end, the vast delta of river Yana, as well as the Byoryolyokh and Allaikha lower course tributaries of the Indigirka in the east. Other important rivers of the lowland are the Chondon , with its tributaries Nuchcha and Buor-Yuryakh , the San-Yuryakh , Sellyakh , Muksunuokha , Kyuyol-Yuryakh , Khroma —with the Uryung-Ulakh , the Sundrun , Dyagarin , Bogdashkina and Gusinaya , among other smaller rivers and streams. The large rivers meander and widen in

8360-484: The lowland is severe, with long, bitter winters. The vast plain is wholly frozen, under ice and snow, between early October and the end of May or early June, according to the year. Once the ice melts large areas become flooded and some islands and sandbanks completely disappear underwater. After the floods dwindle a period of summer/early autumn low water begins until the winter frost sets in. The average temperature in January

8470-986: The montane forests of Africa, South America, Southeast Asia, and lowland forests of Australia, coastal Brazil, the Caribbean islands, Central America, and insular Southeast Asia have many species with small geographical distributions. Areas with dense human populations and intense agricultural land use, such as Europe, parts of Bangladesh, China, India, and North America, are less intact in terms of their biodiversity. Northern Africa, southern Australia, coastal Brazil, Madagascar, and South Africa are also identified as areas with striking losses in biodiversity intactness. A forest consists of many components that can be broadly divided into two categories: biotic (living) and abiotic (non-living). The living parts include trees , shrubs , vines , grasses and other herbaceous (non-woody) plants, mosses , algae , fungi , insects , mammals , birds , reptiles , amphibians , and microorganisms living on

8580-530: The next table: Some researchers state that forests do not only provide benefits, but can in certain cases also incur costs to humans. Forests may impose an economic burden, diminish the enjoyment of natural areas, reduce the food-producing capacity of grazing land and cultivated land, reduce biodiversity, reduce available water for humans and wildlife, harbour dangerous or destructive wildlife, and act as reservoirs of human and livestock disease. An important consideration regarding carbon sequestration

8690-586: The plain, reaching widths between 350 meters (1,150 ft) and 500 meters (1,600 ft). The Yana-Indigirka Lowland is part of the wider Yana-Kolyma system of lowlands, which includes the Aby Lowland to the south of the Polousny Range and the Kolyma Lowland in the eastern side. There are residual ridges of bedrock, up to 558 meters (1,831 ft) high, rising above the lowland, the northernmost of which

8800-411: The plants and animals and in the soil, connected by mycorrhizal networks . The main layers of all forest types are the forest floor , the understory, and the canopy. The emergent layer, above the canopy, exists in tropical rainforests. Each layer has a different set of plants and animals, depending upon the availability of sunlight, moisture, and food. In botany and countries like Germany and Poland,

8910-512: The population belongs to forest-dependent communities, which live in close proximity to forests and practice agroforestry as a principal part of their livelihood. People of Ghana who rely on timber and bushmeat harvested from forests and Indigenous peoples of the Amazon rainforest are also examples of forest-dependent people. Though forest-dependence by more common definitions is statistically associated with poverty and rural livelihoods, elements of forest-dependence exist in communities with

9020-404: The population dropping from 240,500 in 1926 down to 236,700 at the 1959 census. Sakha's demographics shifted wildly during the Soviet period as ethnic Russians and Ukrainians, among other groups, settled the area en masse, primarily in Yakutsk and the industrial south. Previously, even Yakutsk had been primarily Sakha and Sakha-speaking. With the end of korenizatsiya , usage of the Sakha language

9130-615: The proportion of evergreen species increases and the forests are characterised as " sclerophyllous ". Thorn forest , a dense forest of low stature with a high frequency of thorny or spiny species, is found where drought is prolonged, and especially where grazing animals are plentiful. On very poor soils, and especially where fire or herbivory are recurrent phenomena, savannas develop. Sparse trees and savanna are forests with sparse tree- canopy cover. They occur principally in areas of transition from forested to non-forested landscapes. The two major zones in which these ecosystems occur are in

9240-458: The question. Forest tundra A forest is an ecosystem characterized by a dense community of trees . Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' Food and Agriculture Organization (FAO) defines a forest as, "Land spanning more than 0.5 hectares with trees higher than 5 meters and

9350-428: The rate of forest loss has declined substantially. In the most recent five-year period (2015–2020), the annual rate of deforestation was estimated at 10 million hectares (25 million acres), down from 12 million hectares (30 million acres) annually in 2010–2015. The transition of a region from forest loss to net gain in forested land is referred to as the forest transition. This change occurs through

9460-465: The rate of annual increase slowed in 2010–2020. Smaller areas of woodland in cities may be managed as urban forestry , sometimes within public parks. These are often created for human benefits; Attention Restoration Theory argues that spending time in nature reduces stress and improves health, while forest schools and kindergartens help young people to develop social as well as scientific skills in forests. These typically need to be close to where

9570-460: The region and habitat. In contrast, secondary forest is forest regrowing following timber harvest and may contain species originally from other regions or habitats. Different global forest classification systems have been proposed, but none has gained universal acceptance. UNEP - WCMC 's forest category classification system is a simplification of other, more complex systems (e.g. UNESCO 's forest and woodland 'subformations'). This system divides

9680-520: The region during the late Pleistocene  – early Holocene period. Sakha is the only federal subject of Russia which uses more than one time zone. Sakha spans three time zones. Like the rest of Russia, it does not use daylight saving time . The largest river is the navigable Lena River (4,400 km). As it moves northward, it includes hundreds of small tributaries located in the Verkhoyansk Range . There are over 800,000 lakes in

9790-677: The republic. Major lakes and reservoirs include: Sakha's greatest mountain range, the Verkhoyansk Range , runs parallel and east of the Lena River, forming a great arc that begins in the Sea of Okhotsk and ends in the Laptev Sea. The Chersky Range runs east of the Verkhoyansk Range and has the highest peak in Sakha, Peak Pobeda (3,003 m). The second highest peak is Peak Mus-Khaya reaching 2,959 m. The Stanovoy Range borders Sakha in

9900-439: The rivers. Below the tundra is the vast taiga forest region. Larch trees dominate in the north and stands of fir and pine begin to appear in the south. Taiga forests cover about 47% of Sakha and almost 90% of the cover is larch. The Sakha Republic is the site of Pleistocene Park , a project directed at recreating Pleistocene tundra grasslands by stimulating the growth of grass with the introduction of animals which thrived in

10010-612: The severed yet preserved head of a large wolf from the Pleistocene , dated to over 40,000 years ago, was found close to the Tirekhtyakh River. Ymyakhtakh culture ( c.  2200 –1300 BC) was a Late Neolithic culture of Siberia, with a very large archaeological horizon. Its origins were in Sakha, in the Lena river basin. From there it spread both to the east and to the west. The Turkic Sakha people or Yakuts may have settled

10120-419: The south. The Republic's extensive coastline contains a number of peninsulas; from west to east the most prominent are: From west to east the main islands of Sakha are: Sakha is well endowed with raw materials. The soil contains large reserves of oil , gas, coal , diamonds , gold , silver , tin , tungsten and many others. Sakha produces 99% of all Russian diamonds and over 25% of the diamonds mined in

10230-609: The southern hemisphere. They include such forest types as the mixed deciduous forests of the United States and their counterparts in China and Japan; the broadleaf evergreen rainforests of Japan, Chile , and Tasmania ; the sclerophyllous forests of Australia, central Chile, the Mediterranean , and California; and the southern beech Nothofagus forests of Chile and New Zealand. There are many different types of tropical moist forests , with lowland evergreen broad-leaf tropical rainforests : for example várzea and igapó forests and

10340-515: The term the Evenks used to describe the Sakha. This was in turn picked up by the Russians. The Yukaghirs , another neighboring people in Siberia , use the exonym yoqol ~ yoqod- ~ yoqon- ( Tundra Yukaghir ) or yaqal ~ yaqad- ~ yaqan- ( Kolyma Yukaghir ). The self-designation Sakha is probably of the same origin (* jaqa > Sakha following regular sound changes in the course of development of

10450-674: The terra firme forests of the Amazon Basin ; the peat swamp forests ; dipterocarp forests of Southeast Asia ; and the high forests of the Congo Basin . Seasonal tropical forests , perhaps the best description for the colloquial term " jungle ", typically range from the rainforest zone 10 degrees north or south of the equator , to the Tropic of Cancer and Tropic of Capricorn . Forests located on mountains are also included in this category, divided largely into upper and lower montane formations, on

10560-454: The traditionally oral and improvised olonkho , in addition to composing their own works. Many early Sakha leaders, including Oyunsky, died in the Great Purge . Sakha experienced significant collectivization between 1929 and 1934 , with the number of households experiencing collectivization rising from 3.6% in 1929 to 41.7% in 1932. Policies by which the Sakha were harshly affected resulted in

10670-470: The trees are being grown as Christmas trees and are below a certain height. The word forest derives from the Old French forest (also forès ), denoting "forest, vast expanse covered by trees"; forest was first introduced into English as the word denoting wild land set aside for hunting without necessarily having trees on the land. Possibly a borrowing, probably via Frankish or Old High German , of

10780-425: The trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer that consists primarily of grasses. Savannas maintain an open canopy despite a high tree density. Forest plantations are generally intended for the production of timber and pulpwood . Commonly mono-specific, planted with even spacing between

10890-403: The trees, and intensively managed, these forests are generally important as habitat for native biodiversity . Some are managed in ways that enhance their biodiversity protection functions and can provide ecosystem services such as nutrient capital maintenance, watershed and soil structure protection and carbon storage. The annual net loss of forest area has decreased since 1990, but the world

11000-505: The type of vegetation that grows upon the land; an area can be legally designated "forest" even if no trees grow on it. Land-use definitions are based on the primary purpose the land is used for. Under a land-use definition, any area used primarily for harvesting timber, including areas that have been cleared by harvesting, disease, fire, or for the construction of roads and infrastructure, are still defined as forests, even if they contain no trees. Land-cover definitions define forests based upon

11110-626: The word forest is commonly used, there is no universally recognised precise definition, with more than 800 definitions of forest used around the world. Although a forest is usually defined by the presence of trees, under many definitions an area completely lacking trees may still be considered a forest if it grew trees in the past, will grow trees in the future, or was legally designated as a forest regardless of vegetation type. There are three broad categories of definitions of forest in use: administrative, land use , and land cover . Administrative definitions are legal designations, and may not reflect

11220-461: The word is a Latinisation of the Frankish * forhist , denoting "forest, wooded country", and was assimilated to forestam silvam , pursuant to the common practice of Frankish scribes. The Old High German forst denoting "forest"; Middle Low German vorst denoting "forest"; Old English fyrhþ denoting "forest, woodland, game preserve, hunting ground" (English frith ); and Old Norse fýri , denoting " coniferous forest "; all of which derive from

11330-579: The world's forest area is found in patches larger than 1 million hectares (2.5 million acres). The remaining 20 percent is located in more than 34 million patches around the world – the vast majority less than 1,000 hectares (2,500 acres) in size. Human society and forests can affect one another positively or negatively. Forests provide ecosystem services to humans and serve as tourist attractions. Forests can also affect people's health. Human activities, including unsustainable use of forest resources, can negatively affect forest ecosystems. Although

11440-416: The world's forests into 26 major types, which reflect climatic zones as well as the principal types of trees. These 26 major types can be reclassified into 6 broader categories: temperate needleleaf, temperate broadleaf and mixed, tropical moist, tropical dry, sparse trees and parkland, and forest plantations. Each category is described in a separate section below. Temperate needleleaf forests mostly occupy

11550-420: The world's land area in 2020. Forests are the largest terrestrial ecosystems of Earth by area, and are found around the globe. 45 percent of forest land is in the tropical latitudes . The next largest share of forests are found in subarctic climates , followed by temperate , and subtropical zones. Forests account for 75% of the gross primary production of the Earth's biosphere , and contain 80% of

11660-665: The world. Sakha is known for its climate extremes, with the Verkhoyansk Range being the coldest area in the Northern Hemisphere. Some of the lowest natural temperatures ever recorded have been here. The Northern Hemisphere 's Pole of Cold is at Verkhoyansk , where the temperatures reached as low as −67.8 °C (−90.0 °F) in 1892 and 1885, and at Oymyakon , where the temperatures reached as low as −67.8 °C (−90.0 °F) in February 1934. Average annual precipitation : 200 mm (central parts) to 700 mm (mountains of Eastern Sakha). Siberia , and particularly Sakha,

11770-498: The year. New Siberian Islands are a part of the republic's territory. After Nunavut was separated from Canada's Northwest Territories in 1999, Sakha became the largest subnational entity ( statoid ) in the world, with an area of 3,083,523 square kilometers (1,190,555 sq mi), slightly smaller than the territory of India (3.3 million km ), but still slightly larger than Argentina . Sakha can be divided into three great vegetation belts. About 40% of Sakha lies above

11880-436: Was deciduous , dropping its fronds onto the forest floor, the shade, soil, and forest duff from the dropped fronds creating the early forest. The shed organic matter altered the freshwater environment, slowing its flow and providing food. This promoted freshwater fish. Forests account for 75% of the gross primary productivity of the Earth's biosphere , and contain 80% of the Earth's plant biomass. Biomass per unit area

11990-835: Was restricted in urban areas such as Yakutsk, which became primarily Russian-speaking. In 1992, after the fall of the Soviet Union , Sakha was recognized in Moscow as the Sakha (Yakutia) Republic under the jurisdiction of the Russian Federation. Sakha is historically part of Russian Siberia, but since the formation of the Far Eastern Federal District in 2000, it is administratively part of the Russian Far East . Population: 995,686 ( 2021 Census ) ; 958,528 ( 2010 Census ) ; 949,280 ( 2002 Census ) ; 1,081,408 ( 1989 Soviet census ) . Population density

12100-476: Was told to Leo Tolstoy by Vasily Pozdnyakov ; the Socialist Revolutionary Party member and writer Vladimir Zenzinov , who left an account of his Arctic experiences; and Polish socialist activist Wacław Sieroszewski , who pioneered in ethnographic research on the Sakha people. A Sakha national movement first emerged during the 1905 Revolution . A Yakut Union was formed under the leadership of

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