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100-548: The preserve contains the Charles C. Steirly Natural Area , a 19-acre (7.7 ha) swamp containing an essentially virgin forest of bald cypress and water tupelo that was designated as a National Natural Landmark in 1974. The preserve does not have facilities for public access and visitors must make arrangements with the Virginia Department of Conservation and Recreation before visiting. This article related to

200-418: A forest dynamics perspective, old-growth forest is in a stage that follows understory reinitiation stage. Those stages are: Of importance is that while the stand switches from one tree community to another, the stand will not necessarily go through old-growth stage between those stages. Some tree species have a relatively open canopy. That allows more shade-tolerant tree species to establish below even before

300-522: A free content work. Licensed under CC BY-SA 3.0 ( license statement/permission ). Text taken from The State of the World's Forests 2020. In brief – Forests, biodiversity and people​ , FAO & UNEP, FAO & UNEP. British Columbia British Columbia (commonly abbreviated as BC ) is the westernmost province of Canada . Situated in the Pacific Northwest between

400-621: A humid continental climate with widely variable precipitation. For example, the average daily low in Prince George (roughly in the middle of the province) in January is −12 °C (10 °F). Small towns in the southern interior with high elevation such as Princeton are typically colder and snowier than cities in the valleys. Heavy snowfall occurs in all elevated mountainous terrain providing bases for skiers in both south and central British Columbia. Annual snowfall on highway mountain passes in

500-432: A biodiversity that is different from other forest stages. The characteristic topography of much old-growth forest consists of pits and mounds. Mounds are caused by decaying fallen trees, and pits ( tree throws ) by the roots pulled out of the ground when trees fall due to natural causes, including being pushed over by animals. Pits expose humus -poor, mineral-rich soil and often collect moisture and fallen leaves, forming

600-503: A different potential to store carbon. For example, this potential is particularly high in the Pacific Northwest where forests are relatively productive, trees live a long time, decomposition is relatively slow, and fires are infrequent. The differences between forests must, therefore, be taken into consideration when determining how they should be managed to store carbon. A 2019 study projected that old-growth forests in Southeast Asia ,

700-767: A different spatial location relative to the main canopy, hence each one receives a different amount of light. The mixed age of the forest is an important criterion in ensuring that the forest is a relatively stable ecosystem in the long term. A climax stand that is uniformly aged becomes senescent and degrades within a relatively short time to result in a new cycle of forest succession . Thus, uniformly aged stands are less stable ecosystems. Boreal forests are more uniformly aged, as they are normally subject to frequent stand-replacing wildfires. Forest canopy gaps are essential in creating and maintaining mixed-age stands. Also, some herbaceous plants only become established in canopy openings, but persist beneath an understory. Openings are

800-563: A healthy fungal ecosystem, and presence of indicator species. Old-growth forests are often biologically diverse , and home to many rare species , threatened species , and endangered species of plants and animals, such as the northern spotted owl , marbled murrelet and fisher , making them ecologically significant. Levels of biodiversity may be higher or lower in old-growth forests compared to that in second-growth forests, depending on specific circumstances, environmental variables, and geographic variables. Logging in old-growth forests

900-696: A large presence in the Metro Vancouver region. The Franco-Columbian community is an officially recognized linguistic minority, and around one percent of British Columbians claim French as their mother tongue . British Columbia is home to at least 34 distinct Indigenous languages . Major sectors of British Columbia's economy include forestry , mining , filmmaking and video production , tourism , real estate , construction , wholesale , and retail . Its main exports include lumber and timber , pulp and paper products, copper , coal , and natural gas . British Columbia exhibits high property values and

1000-410: A moist, relatively mild climate, some old-growth trees have attained notable height and girth (DBH: diameter at breast height), accompanied by notable biodiversity in terms of the species supported. Therefore, for most people, the physical size of the trees is the most recognized hallmark of old-growth forests, even though the ecologically productive areas that support such large trees often comprise only

1100-533: A protected area in Virginia is a stub . You can help Misplaced Pages by expanding it . This Sussex County, Virginia state location article is a stub . You can help Misplaced Pages by expanding it . Virgin forest An old-growth forest (also referred to as primary forest ) is a forest that has developed over a long period of time without disturbance . Due to this, old-growth forests exhibit unique ecological features. The Food and Agriculture Organization of

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1200-689: A result of industrial logging operations. In 2006, about 61,000 hectares of tall-eucalypt RFA old-growth forests remained unprotected. Recent logging attempts in the Upper Florentine Valley have sparked a series of protests and media attention over the arrests that have taken place in this area. Additionally, Gunns Limited , the primary forestry contractor in Tasmania, has been under recent criticism by political and environmental groups over its practice of woodchipping timber harvested from old-growth forests. Increased understanding of forest dynamics in

1300-550: A result of tree death due to small impact disturbances such as wind, low-intensity fires, and tree diseases. Old-growth forests are unique, usually having multiple horizontal layers of vegetation representing a variety of tree species , age classes, and sizes, as well as "pit and mound" soil shape with well-established fungal nets . As old-growth forest is structurally diverse, it provides higher-diversity habitat than forests in other stages. Thus, sometimes higher biological diversity can be sustained in old-growth forests, or at least

1400-516: A series of devastating epidemics of diseases the people had no immunity to. The population dramatically collapsed, culminating in the 1862 smallpox outbreak in Victoria that spread throughout the coast. European settlement did not bode well for the remaining native population of British Columbia. Colonial officials deemed colonists could make better use of the land than the First Nations people, and thus

1500-432: A severe disturbance, such as wildfire, insect infestation, or harvesting, is often called second-growth or 'regeneration' until enough time passes for the effects of the disturbance to be no longer evident. Depending on the forest, this may take from a century to several millennia. Hardwood forests of the eastern United States can develop old-growth characteristics in 150–500 years. In British Columbia , Canada, old growth

1600-827: A small island off the coast of Haida Gwaii . Many healthy populations of fish are present, including salmonids such as several species of salmon , trout , steelhead , and char . Besides salmon and trout, sport-fishers in BC also catch halibut , bass , and sturgeon . On the coast, harbour seals and river otters are common. Cetacean species native to the coast include the orca , humpback whale , grey whale , harbour porpoise , Dall's porpoise , Pacific white-sided dolphin and minke whale . Some endangered species in British Columbia are: Vancouver Island marmot , spotted owl , American white pelican , and badgers. White spruce or Engelmann spruce and their hybrids occur in 12 of

1700-486: A source of raw materials. These services include making breathable air, making pure water, carbon storage, regeneration of nutrients, maintenance of soils, pest control by insectivorous bats and insects, micro- and macro-climate control, and the storage of a wide variety of genes. The effects of old-growth forests in relation to global warming have been addressed in various studies and journals. The Intergovernmental Panel on Climate Change said in its 2007 report : "In

1800-412: A substrate for seedling trees. Intact soils harbor many life forms that rely on them. Intact soils generally have very well-defined horizons, or soil profiles . Different organisms may need certain well-defined soil horizons to live, while many trees need well-structured soils free of disturbance to thrive. Some herbaceous plants in northern hardwood forests must have thick duff layers (which are part of

1900-400: A thick organic layer that is able to nurture certain types of organisms. Mounds provide a place free of leaf inundation and saturation, where other types of organisms thrive. Standing snags provide food sources and habitat for many types of organisms. In particular, many species of dead-wood predators, such as woodpeckers , must have standing snags available for feeding. In North America,

2000-417: A useful number to measure. So, some forests may be excluded from being categorized as old-growth even if they have old-growth attributes just because they are too young. Also, older forests can lack some old-growth attributes and be categorized as old-growth just because they are so old. The idea of using age is also problematic, because human activities can influence the forest in varied ways. For example, after

2100-584: A very small portion of the total area that has been mapped as old-growth forest. (In high-altitude, harsh climates, trees grow very slowly and thus remain at a small size. Such trees also qualify as old growth in terms of how they are mapped, but are rarely recognized by the general public as such.) The debate over old-growth definitions has been inextricably linked with a complex range of social perceptions about wilderness preservation, biodiversity, aesthetics, and spirituality, as well as economic or industrial values. In logging terms, old-growth stands are past

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2200-655: A very wide range of birds, has long been popular. Bears ( grizzly , black —including the Kermode bear or spirit bear) live here, as do deer , elk , moose , caribou , big-horn sheep , mountain goats , marmots , beavers , muskrats , coyotes , wolves , mustelids (such as wolverines , badgers and fishers ), cougars , eagles , ospreys , herons , Canada geese , swans , loons , hawks , owls , ravens , harlequin ducks , and many other sorts of ducks. Smaller birds ( robins , jays , grosbeaks , chickadees , and so on) also abound. Murrelets are known from Frederick Island,

2300-455: A wholly unorganized area of British North America under the de facto jurisdiction of HBC administrators; however, unlike Rupert's Land to the north and east, the territory was not a concession to the company. Rather, it was simply granted a monopoly to trade with the First Nations inhabitants. All that was changed with the westward extension of American exploration and the concomitant overlapping claims of territorial sovereignty, especially in

2400-456: Is Canada's third-largest province in terms of total area, after Quebec and Ontario . The first known human inhabitants of the area settled in British Columbia at least 10,000 years ago. Such groups include the Coast Salish , Tsilhqotʼin , and Haida peoples, among many others. One of the earliest British settlements in the area was Fort Victoria , established in 1843, which gave rise to

2500-414: Is a contentious issue in many parts of the world. Excessive logging reduces biodiversity, affecting not only the old-growth forest itself, but also indigenous species that rely upon old-growth forest habitat. Some forests in the old-growth stage have a mix of tree ages, due to a distinct regeneration pattern for this stage. New trees regenerate at different times from each other, because each of them has

2600-627: Is a significant centre for maritime trade : the Port of Vancouver is the largest port in Canada and the most diversified port in North America . Although less than 5 percent of the province's territory is arable land , significant agriculture exists in the Fraser Valley and Okanagan due to the warmer climate. British Columbia is home to 45% of all publicly listed companies in Canada. The province's name

2700-654: Is affected. Climate change showed an impact on the mortality of some dominant tree species, as observed in the Korean pine . Climate change also showed an effect on the composition of species when forests were surveyed over a 10- and 20-year period, which may disrupt the overall productivity of the forest. According to the World Resources Institute , as of January 2009, only 21% of the original old-growth forests that once existed on Earth are remaining. An estimated one-half of Western Europe's forests were cleared before

2800-615: Is defined as 120 to 140 years of age in the interior of the province where fire is a frequent and natural occurrence. In British Columbia's coastal rainforests , old growth is defined as trees more than 250 years, with some trees reaching more than 1,000 years of age. In Australia, eucalypt trees rarely exceed 350 years of age due to frequent fire disturbance. Forest types have very different development patterns, natural disturbances and appearances. A Douglas-fir stand may grow for centuries without disturbance while an old-growth ponderosa pine forest requires frequent surface fires to reduce

2900-548: Is generally in the subarctic climate zone, but even there, milder air can penetrate far inland. The coldest temperature in British Columbia was recorded in Smith River , where it dropped to −58.9 °C (−74.0 °F) on January 31, 1947, one of the coldest readings recorded anywhere in North America. Atlin in the province's far northwest, along with the adjoining Southern Lakes region of Yukon , get midwinter thaws caused by

3000-485: Is home to First Nations groups that have a deep history with a significant number of indigenous languages. There are more than 200 First Nations in BC. Prior to contact (with non-Aboriginal people), human history is known from oral histories, archaeological investigations, and from early records from explorers encountering societies early in the period. The arrival of Paleoindians from Beringia took place between 20,000 and 12,000 years ago. Hunter-gatherer families were

3100-433: Is more accurate in forests where the species that constitute old-growth have long lifespans and succession is slow. Common cultural definitions and common denominators regarding what comprises old-growth forest, and the variables that define, constitute and embody old-growth forests include: Additionally, in mountainous, temperate landscapes (such as Western North America), and specifically in areas of high-quality soil and

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3200-799: Is not the most commercially viable timber—in British Columbia, Canada, harvesting in the coastal region is moving to younger second-growth stands. A 2001 scientific symposium in Canada found that defining old growth in a scientifically meaningful, yet policy-relevant, manner presents some basic difficulties, especially if a simple, unambiguous, and rigorous scientific definition is sought. Symposium participants identified some attributes of late-successional, temperate-zone, old-growth forest types that could be considered in developing an index of "old-growthness" and for defining old-growth forests: Structural features: Compositional features: Process features: Old-growth forests provide ecosystem services that may be far more important to society than their use as

3300-528: Is now the United States include Vancouver, Washington ( Fort Vancouver ), formerly the "capital" of Hudson's Bay operations in the Columbia District, Colville, Washington and Walla Walla, Washington (old Fort Nez Percés ). With the amalgamation of the two fur trading companies in 1821, modern-day British Columbia existed in three fur trading departments. The bulk of the central and northern interior

3400-552: Is seen as extremely economically unproductive, as timber can only be collected from falling trees, and also potentially damaging to nearby managed groves by creating environments conducive to root rot. It may be more productive to cut the old growth down and replace the forest with a younger one. The island of Tasmania , just off the southeast coast of Australia, has the largest amount of temperate old-growth rainforest reserves in Australia with around 1,239,000 hectares in total. While

3500-462: Is the only province in Canada that borders the Pacific Ocean. British Columbia's highest mountain is Mount Fairweather ; the highest mountain entirely within the province is Mount Waddington . British Columbia's capital is Victoria , located at the southeastern tip of Vancouver Island . Only a narrow strip of Vancouver Island, from Campbell River to Victoria, is significantly populated. Much of

3600-548: The British Isles , many British Columbians also trace their ancestors to continental Europe , East Asia , and South Asia . Indigenous Canadians constitute about 6 percent of the province's total population. Christianity is the largest religion in the region, though the majority of the population is non-religious. English is the common language of the province, although Punjabi , Mandarin Chinese , and Cantonese also have

3700-1042: The Chinook effect, which is also common (and much warmer) in more southerly parts of the Interior. During winter on the coast, rainfall , sometimes relentless heavy rain, dominates because of consistent barrages of cyclonic low-pressure systems from the North Pacific. Average snowfall on the coast during a normal winter is between 25 and 50 centimetres (10 and 20 in), but on occasion (and not every winter) heavy snowfalls with more than 20 centimetres (8 in) and well below freezing temperatures arrive when modified arctic air reaches coastal areas, typically for short periods, and can take temperatures below −10 °C (14 °F), even at sea level. Arctic outflow winds can occasionally result in wind chill temperatures at or even below −17.8 °C (0.0 °F). While winters are very wet, coastal areas are generally milder and dry during summer under

3800-664: The Columbia in the name Columbia Rediviva came from the name Columbia for the New World or parts thereof , a reference to Christopher Columbus . The governments of Canada and British Columbia recognize Colombie-Britannique as the French name for the province. British Columbia is bordered to the west by the Pacific Ocean and the American state of Alaska , to the north by Yukon and

3900-638: The Dakelh (Carrier) and the Tsilhqotʼin . The inlets and valleys of the British Columbia coast shelter large, distinctive populations, such as the Haida , Kwakwakaʼwakw and Nuu-chah-nulth , sustained by the region's abundant salmon and shellfish. These peoples developed complex cultures dependent on the western red cedar that included wooden houses, seagoing whaling and war canoes and elaborately carved potlatch items and totem poles . Contact with Europeans brought

4000-578: The Fraser Canyon , close to the confluence of the Fraser and Thompson rivers, where the terrain is rugged and covered with desert-type flora. Semi-desert grassland is found in large areas of the Interior Plateau , with land uses ranging from ranching at lower altitudes to forestry at higher ones. The northern, mostly mountainous, two-thirds of the province is largely unpopulated and undeveloped, except for

4100-460: The Inside Passage 's many inlets provide some of British Columbia's renowned and spectacular scenery, which forms the backdrop and context for a growing outdoor adventure and ecotourism industry. 75 percent of the province is mountainous (more than 1,000 m [3,300 ft] above sea level ); 60 percent is forested; and only about 5 percent is arable. The province's mainland away from

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4200-480: The Middle Ages , and 90% of the old-growth forests that existed in the contiguous United States in the 1600s have been cleared. The large trees in old-growth forests are economically valuable, and have been subject to aggressive logging throughout the world. This has led to many conflicts between logging companies and environmental groups . From certain forestry perspectives, fully maintaining an old-growth forest

4300-520: The North Coast just south of Southeast Alaska . The exception to British Columbia's wet and cloudy winters is during the El Niño phase. During El Niño events, the jet stream is much farther south across North America, making the province's winters milder and drier than normal. Winters are much wetter and cooler during the opposite phase, La Niña . There are 14 designations of parks and protected areas in

4400-664: The North West Company and the Hudson's Bay Company (HBC), effectively established a permanent British presence in the region. The Columbia District was broadly defined as being south of 54°40 north latitude, (the southern limit of Russian America ), north of Mexican-controlled California, and west of the Rocky Mountains . It was, by the Anglo-American Convention of 1818 , under the "joint occupancy and use" of citizens of

4500-649: The Northwest Territories , to the east by the province of Alberta , and to the south by the American states of Washington , Idaho , and Montana . The southern border of British Columbia was established by the 1846 Oregon Treaty, although its history is tied with lands as far south as California . British Columbia's land area is 944,735 square kilometres (364,800 sq mi). British Columbia's rugged coastline stretches for more than 27,000 kilometres (17,000 mi), and includes deep, mountainous fjords and about 6,000 islands, most of which are uninhabited. It

4600-574: The Oroville–Osoyoos Border Crossing , is one of several wine and cider -producing regions in Canada. Other wine regions in British Columbia include the Cowichan Valley on Vancouver Island and the Fraser Valley . The Southern Interior cities of Kamloops and Penticton have some of the warmest and longest summer climates in Canada (while higher elevations are cold and snowy), although their temperatures are often exceeded north of

4700-408: The Pacific Ocean and the Rocky Mountains , the province has a diverse geography, with rugged landscapes that include rocky coastlines, sandy beaches, forests, lakes, mountains, inland deserts and grassy plains. British Columbia borders the province of Alberta to the east; the territories of Yukon and Northwest Territories to the north; the U.S. states of Washington , Idaho and Montana to

4800-674: The Regional Forest Agreement (RFA) attempted to prevent the clearfelling of defined "old-growth forests". This led to struggles over what constitutes "old growth". For example, in Western Australia, the timber industry tried to limit the area of old growth in the karri forests of the Southern Forests Region; this led to the creation of the Western Australian Forests Alliance , the splitting of

4900-467: The United Nations defines primary forests as naturally regenerated forests of native tree species where there are no clearly visible indications of human activity and the ecological processes are not significantly disturbed. One-third (34 percent) of the world's forests are primary forests. Old-growth features include diverse tree-related structures that provide diverse wildlife habitats that increases

5000-531: The biodiversity of the forested ecosystem . Virgin or first-growth forests are old-growth forests that have never been logged. The concept of diverse tree structure includes multi-layered canopies and canopy gaps, greatly varying tree heights and diameters, and diverse tree species and classes and sizes of woody debris. As of 2020 , the world has 1.11  billion   ha (2.7 billion acres) of primary forest remaining. Combined, three countries (Brazil, Canada, and Russia) host more than half (61 percent) of

5100-608: The fur trade , rather than political considerations. In 1794, by the third of a series of agreements known as the Nootka Conventions , Spain conceded its claims of exclusivity in the Pacific. This opened the way for formal claims and colonization by other powers, including Britain, but because of the Napoleonic Wars , there was little British action on its claims in the region until later. The establishment of trading posts by

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5200-525: The spotted owl is well known for needing standing snags for nesting habitat. Fallen timber, or coarse woody debris , contributes carbon -rich organic matter directly to the soil , providing a substrate for mosses , fungi, and seedlings , and creating microhabitats by creating relief on the forest floor. In some ecosystems such as the temperate rain forest of the North American Pacific coast , fallen timber may become nurse logs , providing

5300-549: The united colony's capital. In 1871, British Columbia entered Confederation as the sixth province of Canada, in enactment of the British Columbia Terms of Union . British Columbia is a diverse and cosmopolitan province, drawing on a plethora of cultural influences from its British Canadian , European , and Asian diasporas , as well as the Indigenous population . Though the province's ethnic majority originates from

5400-1101: The 14 biogeoclimatic zones of British Columbia . Common types of trees present in BC's forests include western redcedar , yellow-cedar , Rocky Mountain juniper , lodgepole pine , ponderosa or yellow pine , whitebark pine , limber pine , western white pine , western larch , tamarack , alpine larch , white spruce , Engelmann spruce , Sitka spruce , black spruce , grand fir , Amabilis fir , subalpine fir , western hemlock , mountain hemlock , Douglas-fir , western yew , Pacific dogwood , bigleaf maple , Douglas maple , vine maple , arbutus , black hawthorn , cascara , Garry oak , Pacific crab apple , choke cherry , pin cherry , bitter cherry , red alder , mountain alder , paper birch , water birch , black cottonwood , balsam poplar , trembling aspen . First Nations peoples of British Columbia used plants for food, and to produce material goods like fuel and building products. Plant foods included berries, and roots like camas . Environment Canada subdivides British Columbia into six ecozones : The area now known as British Columbia

5500-577: The 14 different designations that includes over 800 distinct areas. British Columbia contains seven of Canada's national parks and National Park Reserves: British Columbia contains a large number of provincial parks , run by BC Parks under the aegis of the Ministry of Environment. British Columbia's provincial parks system is the second largest parks system in Canada, the largest being Canada's National Parks system. Another tier of parks in British Columbia are regional parks , which are maintained and run by

5600-654: The Interior during mid-summer, with the record high of 49.6 °C (121.3 °F) being held in Lytton on June 29, 2021, during a record-breaking heat wave that year . The extended summer dryness often creates conditions that spark forest fires, from dry-lightning or man-made causes. Many areas of the province are often covered by a blanket of heavy cloud and low fog during the winter months, in contrast to abundant summer sunshine. Annual sunshine hours vary from 2200 near Cranbrook and Victoria to less than 1300 in Prince Rupert , on

5700-625: The Liberal Government of Western Australia and the election of the Gallop Labor Government. Old-growth forests in this region have now been placed inside national parks . A small proportion of old-growth forests also exist in South-West Australia and are protected by federal laws from logging, which has not occurred there for more than 20 years. In British Columbia , Canada , old-growth forests must be maintained in each of

5800-536: The Pacific Ocean, inscribing a stone marking his accomplishment on the shoreline of Dean Channel near Bella Coola . His expedition theoretically established British sovereignty inland, and a succession of other fur company explorers charted the maze of rivers and mountain ranges between the Canadian Prairies and the Pacific. Mackenzie and other explorers—notably John Finlay , Simon Fraser , Samuel Black , and David Thompson —were primarily concerned with extending

5900-781: The United States and subjects of Britain (which is to say, the fur companies). This co-occupancy was ended with the Oregon Treaty of 1846. The major supply route was the York Factory Express between Hudson Bay and Fort Vancouver . Some of the early outposts grew into settlements, communities, and cities. Among the places in British Columbia that began as fur trading posts are Fort St. John (established 1794); Hudson's Hope (1805); Fort Nelson (1805); Fort St. James (1806); Prince George (1807); Kamloops (1812); Fort Langley (1827); Fort Victoria (1843); Yale (1848); and Nanaimo (1853). Fur company posts that became cities in what

6000-753: The area east of the Rockies , where the Peace River Country contains BC's portion of the Canadian Prairies , centred at the city of Dawson Creek . British Columbia is considered part of the Pacific Northwest and the Cascadia bioregion , along with the American states of Alaska, Idaho, (western) Montana, Oregon , Washington, and (northern) California . Because of the many mountain ranges and rugged coastline, British Columbia's climate varies dramatically across

6100-446: The atmosphere. Proponents of harvesting the forest argue the carbon stored in wood is available for use as biomass energy (displacing fossil fuel use), although using biomass as a fuel produces air pollution in the form of carbon monoxide , nitrogen oxides , volatile organic compounds , particulates, and other pollutants, in some cases at levels above those from traditional fuel sources such as coal or natural gas. Each forest has

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6200-587: The blocking presence of successive mountain ranges, the climate of some of the interior valleys of the province (such as the Thompson, parts of the Fraser Canyon, the southern Cariboo and parts of the Okanagan) is semi-arid with certain locations receiving less than 250 millimetres (10 in) in annual precipitation. The annual mean temperature in the most populated areas of the province is up to 12 °C (54 °F),

6300-645: The city of Victoria, the capital of the Colony of Vancouver Island . The Colony of British Columbia (1858–1866) was subsequently founded by Richard Clement Moody , and by the Royal Engineers, Columbia Detachment , in response to the Fraser Canyon Gold Rush . Moody selected the site for and founded the mainland colony's capital New Westminster . The colonies of Vancouver Island and British Columbia were incorporated in 1866, subsequent to which Victoria became

6400-584: The coast in 1775. In doing so, Pérez and Quadra reasserted the Spanish claim for the Pacific coast , first made by Vasco Núñez de Balboa in 1513. The explorations of James Cook in 1778 and George Vancouver in 1792 and 1793 established British jurisdiction over the coastal area north and west of the Columbia River. In 1793, Sir Alexander Mackenzie was the first European to journey across North America overland to

6500-535: The coastal regions is somewhat moderated by the Pacific Ocean. Terrain ranges from dry inland forests and semi-arid valleys, to the range and canyon districts of the Central and Southern Interior , to boreal forest and subarctic prairie in the Northern Interior. High mountain regions both north and south have subalpine flora and subalpine climate . The Okanagan wine area , extending from Vernon to Osoyoos at

6600-421: The economic optimum for harvesting—usually between 80 and 150 years, depending on the species. Old-growth forests were often given harvesting priority because they had the most commercially valuable timber, they were considered to be at greater risk of deterioration through root rot or insect infestation, and they occupied land that could be used for more productive second-growth stands. In some regions, old growth

6700-436: The forest will switch back to understory reinitiation stage. Using the stand dynamics definition, old-growth can be easily evaluated using structural attributes. However, in some forest ecosystems, this can lead to decisions regarding the preservation of unique stands or attributes that will disappear over the next few decades because of natural succession processes. Consequently, using stand dynamics to define old-growth forests

6800-472: The forests is vital to climate change mitigation . Old-growth forests tend to have large trees and standing dead trees, multilayered canopies with gaps that result from the deaths of individual trees, and coarse woody debris on the forest floor. The trees of old-growth forests develop distinctive attributes not seen in younger trees, such as more complex structures and deeply fissured bark that can harbor rare lichens and mosses. A forest regenerated after

6900-447: The forests, destroying the forests in the process, to generate short-term profits, while environmentalists seek to preserve the forests in their pristine state for benefits such as water purification , flood control , weather stability, maintenance of biodiversity, and nutrient cycling . Moreover, old-growth forests are more efficient at sequestering carbon than newly planted forests and fast-growing timber plantations , thus preserving

7000-523: The influence of stable anti-cyclonic high pressure. Southern Interior valleys are hot in summer; for example, in Osoyoos , the July maximum temperature averages 31.7 °C (89.1 °F), making it the hottest month of any location in Canada; this hot weather sometimes spreads towards the coast or to the far north of the province. Temperatures often exceed 40 °C (104 °F) in the lower elevations of valleys in

7100-621: The islands of southern Alaska and northern British Columbia. The Na-Dene language group is believed to be linked to the Yeniseian languages of Siberia: the Dene of the western Arctic may represent a distinct wave of migration from Asia to North America. The Interior of British Columbia is home to the Salishan language groups such as the Shuswap (Secwepemc) , Okanagan and Athabaskan language groups, primarily

7200-479: The land should be owned by the colonists. To ensure colonists would be able to settle properly and make use of the land, First Nations were forcibly relocated onto reserves , which were often too small to support their way of life. By the 1930s, British Columbia had over 1500 reserves. Lands now known as British Columbia were added to the British Empire during the 19th century. Colonies originally begun with

7300-427: The landscape patterns and habitat conditions normally maintained in nature . This coarse filter approach to biodiversity conservation recognizes ecological processes and provides for a dynamic distribution of old growth across the landscape. And all seral stages—young, medium, and old—support forest biodiversity. Plants and animals rely on different forest ecosystem stages to meet their habitat needs. In Australia ,

7400-525: The late 20th century led the scientific community to identify a need to inventory, understand, manage, and conserve representative examples of old-growth forests with their associated characteristics and values. Literature around old growth and its management is inconclusive about the best way to characterize the true essence of an old-growth stand. A better understanding of natural systems has resulted in new ideas about forest management, such as managed natural disturbances, which should be designed to achieve

7500-617: The local Regional Forest Agreement (RFA) was originally designed to protect much of this natural wealth, many of the RFA old-growth forests protected in Tasmania consist of trees of little use to the timber industry. RFA old-growth and high conservation value forests that contain species highly desirable to the forestry industry have been poorly preserved. Only 22% of Tasmania's original tall-eucalypt forests managed by Forestry Tasmania have been reserved. Ten thousand hectares of tall-eucalypt RFA old-growth forest have been lost since 1996, predominantly as

7600-408: The logging of 30% of the trees, less time is needed for old-growth to come back than after removal of 80% of the trees. Although depending on the species logged, the forest that comes back after a 30% harvest may consist of proportionately fewer hardwood trees than a forest logged at 80% in which the light competition by less important tree species does not inhibit the regrowth of vital hardwoods. From

7700-413: The long term, a sustainable forest management strategy aimed at maintaining or increasing forest carbon stocks, while producing an annual sustained yield of timber, fibre, or energy from the forest, will generate the largest sustained mitigation benefit." Old-growth forests are often perceived to be in equilibrium or in a state of decay. However, evidence from analysis of carbon stored above ground and in

7800-559: The main social structure from 10,000 to 5,000 years ago. The nomadic population lived in non-permanent structures foraging for nuts, berries and edible roots while hunting and trapping larger and small game for food and furs. Around 5,000 years ago individual groups started to focus on resources available to them locally. Coast Salish peoples had complex land management practices linked to ecosystem health and resilience. Forest gardens on Canada's northwest coast included crabapple, hazelnut, cranberry, wild plum, and wild cherry species. Thus with

7900-476: The majority of which are in Indonesia and Malaysia , are able to sequester carbon or be a net emitter of greenhouse gases based on deforestation scenarios over the subsequent decades. Old-growth forests have the potential to impact climate change, but climate change is also impacting old-growth forests. As the effects of global warming grow more substantial, the ability of old-growth forests to sequester carbon

8000-647: The mildest anywhere in Canada. The valleys of the Southern Interior have short winters with only brief bouts of cold or infrequent heavy snow, while those in the Cariboo , in the Central Interior , are colder because of increased altitude and latitude, but without the intensity or duration experienced at similar latitudes elsewhere in Canada. Outside of the driest valleys, the Southern and Central Interior generally have

8100-470: The native population of what became British Columbia. The arrival of Europeans began around the mid-18th century, as fur traders entered the area to harvest sea otters . While it is thought Sir Francis Drake may have explored the British Columbian coast in 1579, it was Juan Pérez who completed the first documented voyage, which took place in 1774. Juan Francisco de la Bodega y Quadra explored

8200-565: The passage of time there is a pattern of increasing regional generalization with a more sedentary lifestyle . These indigenous populations evolved over the next 5,000 years across a large area into many groups with shared traditions and customs. To the northwest of the province are the peoples of the Na-Dene languages , which include the Athapaskan-speaking peoples and the Tlingit , who live on

8300-401: The province that reflect the different administration and creation of these areas in a modern context. There are 141 ecological reserves, 35 provincial marine parks, 7 provincial heritage sites, 6 National Historic Sites of Canada , 4 national parks and 3 national park reserves. 12.5 percent of the province's area (114,000 km or 44,000 sq mi) is considered protected under one of

8400-517: The province's ecological units to meet biodiversity needs. In the United States , from 2001, around a quarter of the federal forests are protected from logging. In December 2023, Biden's administration introduced a rule, according to which, logging is strongly limited in old growth forests, but permitted in "mature forests", representing a compromise between the logging industry and environmental activists. In 2006, Greenpeace identified that

8500-525: The province's regional districts . The Ministry of Forests operates forest recreation sites. In addition to these areas, over 47,000 square kilometres (18,000 sq mi) of arable land are protected by the Agricultural Land Reserve . Much of the province is undeveloped, so populations of many mammalian species that have become rare in much of the United States still flourish in British Columbia. Watching animals of various sorts, including

8600-552: The province. Coastal southern British Columbia has a mild and rainy climate influenced by the North Pacific Current . Most of the region is classified as oceanic , though pockets of warm-summer Mediterranean climate also exist in the far-southern parts of the coast. Precipitation averages above 1,000 mm (39 in) in almost all of the coastal region, and Hucuktlis Lake on Vancouver Island receives an average of 6,903 mm (271.8 in) of rain annually. Due to

8700-607: The shade-tolerant species and regenerate the canopy species. In the boreal forest of Canada , catastrophic disturbances like wildfires minimize opportunities for major accumulations of dead and downed woody material and other structural legacies associated with old growth conditions. Typical characteristics of old-growth forest include the presence of older trees, minimal signs of human disturbance, mixed-age stands, presence of canopy openings due to tree falls, pit-and-mound topography , down wood in various stages of decay, standing snags (dead trees), multilayered canopies, intact soils ,

8800-462: The soil has shown old-growth forests are more productive at storing carbon than younger forests. Forest harvesting has little or no effect on the amount of carbon stored in the soil, but other research suggests older forests that have trees of many ages, multiple layers, and little disturbance have the highest capacities for carbon storage. As trees grow, they remove carbon from the atmosphere, and protecting these pools of carbon prevents emissions into

8900-516: The soil profile). Fungal ecosystems are essential for efficient in-situ recycling of nutrients back into the entire ecosystem. Stand age can also be used to categorize a forest as old-growth. For any given geographical area, the average time since disturbance until a forest reaches the old growth stage can be determined. This method is useful, because it allows quick and objective determination of forest stage. However, this definition does not provide an explanation of forest function. It just gives

9000-501: The south, and Alaska to the northwest. With an estimated population of over 5.6   million as of 2024, it is Canada's third-most populous province . The capital of British Columbia is Victoria , while the province's largest city is Vancouver . Vancouver and its suburbs together make up the third-largest metropolitan area in Canada , with the 2021 census recording 2.6   million people in Metro Vancouver . British Columbia

9100-526: The southern Columbia Basin (within present day Washington and Oregon ). In 1846, the Oregon Treaty divided the territory along the 49th parallel to the Strait of Georgia , with the area south of this boundary (excluding Vancouver Island and the Gulf Islands ) transferred to sole American sovereignty. The Colony of Vancouver Island was created in 1849, with Victoria designated as the capital. New Caledonia, as

9200-404: The southern interior rivals some of the snowiest cities in Canada, and freezing rain and fog are sometimes present on such roads as well. This can result in hazardous driving conditions, as people are usually travelling between warmer areas such as Vancouver or Kamloops , and may be unaware that the conditions may be slippery and cold. Winters are generally severe in the Northern Interior which

9300-591: The support of the Hudson's Bay Company (Vancouver Island, the mainland) were amalgamated, then entered Confederation as British Columbia in 1871 as part of the Dominion of Canada. During the 1770s, smallpox killed at least 30 percent of the Pacific Northwest First Nations . This devastating epidemic was the first in a series; the 1862 Pacific Northwest smallpox epidemic killed about half to two-thirds of

9400-549: The understory reinitiation stage. The shade-tolerant trees eventually outcompete the main canopy trees in stem-exclusion stage. Therefore, the dominant tree species will change, but the forest will still be in stem-exclusion stage until the shade-tolerant species reach old-growth stage. Tree species succession may change tree species' composition once the old-growth stage has been achieved. For example, an old boreal forest may contain some large aspen trees, which may die and be replaced by smaller balsam fir or black spruce. Consequently,

9500-548: The western part of Vancouver Island and the rest of the coast is covered by temperate rainforest . The province's most populous city is Vancouver, which is at the confluence of the Fraser River and Georgia Strait , in the mainland's southwest corner (an area often called the Lower Mainland ). By land area, Abbotsford is the largest city. Vanderhoof is near the geographic centre of the province. The Coast Mountains and

9600-432: The world's primary forest. The area of primary forest has decreased by 81 million ha (200 million acres) since 1990, but the rate of loss more than halved in 2010–2020 compared with the previous decade. Old-growth forests are valuable for economic reasons and for the ecosystem services they provide. This can be a point of contention when some in the logging industry desire to harvest valuable timber from

9700-413: The world's remaining intact forest landscapes are distributed among the continents as follows: [REDACTED]  This article incorporates text from a free content work. Licensed under CC BY-SA 3.0 ( license statement/permission ). Text taken from Global Forest Resources Assessment 2020 Key findings​ , FAO, FAO. [REDACTED]  This article incorporates text from

9800-657: Was chosen by Queen Victoria , when the Colony of British Columbia (1858–1866) , i.e., "the Mainland", became a British colony in 1858. It refers to the Columbia District , the British name for the territory drained by the Columbia River , in southeastern British Columbia, which was the namesake of the pre- Oregon Treaty Columbia Department of the Hudson's Bay Company . Queen Victoria chose British Columbia to distinguish what

9900-833: Was organized into the New Caledonia district, administered from Fort St. James. The interior south of the Thompson River watershed and north of the Columbia was organized into the Columbia District, administered from Fort Vancouver on the lower Columbia River. The northeast corner of the province east of the Rockies, known as the Peace River Block, was attached to the much larger Athabasca District , headquartered in Fort Chipewyan , in present-day Alberta. Until 1849, these districts were

10000-520: Was the British sector of the Columbia District from the United States' ("American Columbia" or "Southern Columbia"), which became the Oregon Territory on August 8, 1848, as a result of the treaty. Ultimately, the Columbia in the name British Columbia is derived from the name of the Columbia Rediviva , an American ship which lent its name to the Columbia River and later the wider region;

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