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94-527: Yonne is Bourgogne-Franche-Comté's fourth-most populous department, with a population of 335,707 (2019). Its largest city is its prefecture Auxerre, with a population of about 35,000 within city limits and 68,000 in the urban area. The first evidence of occupation in this area is found in the Grottes d'Arcy-sur-Cure, where paintings have been found dating back 28,000 years. The Palaeolithic hunter-gatherers of that time also left behind numerous flint artefacts. The area

188-486: A viticulturist include monitoring and controlling pests and diseases , fertilizing , irrigation , canopy management , monitoring fruit development and characteristics , deciding when to harvest , and vine pruning during the winter months. Viticulturists are often intimately involved with winemakers, because vineyard management and the resulting grape characteristics provide the basis from which winemaking can begin. A great number of varieties are now approved in

282-496: A cluster. Each grape berry contains a pedicel which attaches to the rachis . The main function of the rachis is to allow the grapes to receive their water and nutrients. The pollination and fertilization of grapes results in one to four seeds within each berry. When fertilization does not occur, seedless grapes are formed, which are sought after for the production of raisins . Regardless of pollination and fertilization, most plants will produce around 100 to 200 grapes. The skin of

376-427: A few years. A viticulturist faces many hazards that can have an adverse effect on the wine produced from the grape or kill the vine itself. A green harvest is the removal of immature grape bunches, typically for the purpose of decreasing yield. The removal of the bunches while they are still green induces the vine to put all its energy into developing the remaining grapes. In theory this results in better ripening and

470-598: A fresher and more acidic harvest. In general, the average yearly temperature for most crops should average around 15 °C (59 °F) in order to achieve the highest quality in each grape. Summer: Ideal temperatures in summer average around 22 °C (72 °F). Ideal summer temperatures enable fruits to ripen. Temperature and sunshine are the most important factors in ripening. Winter: Ideal temperatures in winter average around 3 °C (37 °F). Ideal winter temperatures are necessary to allow grape vines to enter their resting phase. If temperatures fall too low,

564-409: A god. The Bible makes numerous references to wine, and grapevines, both symbolically and literally. Grapes are first mentioned when Noah grows them on his farm (Genesis 9:20–21). References to wine are made in the book of Proverbs (20:1) and the book of Isaiah (5:1–25). Deuteronomy (18:3–5, 14:22–27, 16:13–15) reports the use of wine during Jewish festivals. In Christianity wine is the symbol of

658-511: A hypothetical Thracian * Donaris . The Proto-Indo-European root of this presumed name is related to the Iranic word " don- "/" dan- ", while the supposed suffix -aris is encountered in the ancient name of the Ialomița River , Naparis , and in the unidentified Miliare river mentioned by Jordanes in his Getica . Gábor Vékony says that this hypothesis is not plausible, because

752-473: A result of the passing of an Act on December 22, 1789. It was carved out of parts of the provinces of Burgundy , Champagne and Orléans , and to a lesser extent from parts of the Nivernais and Île-de-France . Yonne is a department in central France, one of the eight constituent departments of the region of Bourgogne-Franche-Comté. To the northeast lies the department of Aube , to the east lies Côte-d'Or , to

846-436: A slope affords better drainage, obviating the possibility that the vine might sit in overly moist soil. In cooler regions of the northern hemisphere, south-facing slopes receive more hours of sunlight and are preferred; in warmer climes , north-facing slopes are preferred. In the southern hemisphere, these orientations are reversed. Quality soil is important to allow plants to have better root systems. The growth and health of

940-402: A slope can receive a greater intensity of the sun's rays, with sunshine falling on an angle perpendicular to the hillside. In flatter terrain, the intensity of the sunlight is diluted as it spreads out across a wider surface area. Small slopes that are elevated above surrounding ground are the best and safest places for crops, because these small elevations are less prone to frost. Additionally,

1034-497: A uniquely preferred environment for ideal growing. Because climates vary from region to region, selecting the best strain is an important decision in grape cultivation. Additionally, because climatic factors such as temperature and rain can be unpredictable and uncontrollable, each year will produce unique qualities and yields of grapes. Wine grapes are also especially susceptible to climate change and temperature variation. Grape vines need approximately 1300–1500 hours of sunshine during

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1128-479: A vine can be affected if the soil quality is poor. Different grape species prefer various soil conditions, although there are general quality factors. Favorable soil conditions include: aeration , loose texture, good drainage and moderate fertility. Drainage factors are cited as the most important soil characteristic to affect grape vine growth. When root growth is restricted due to bad soil, vine growth and fruit yields lessen and plant survival rates can dip to only

1222-521: Is 4,152 km (1,603 sq mi), of which 3,446 km (1,331 sq mi) are in Romania. If one includes the lagoons of Razim-Sinoe (1,015 km (392 sq mi) of which 865 km (334 sq mi) water surface), which are located south of the delta proper, but are related to it geologically and ecologically (their combined territory is part of the World Heritage Site),

1316-471: Is also an important source of hydropower and drinking water . The Danube river basin is home to such fish species as pike , zander , huchen , Wels catfish , burbot and tench . It is also home to numerous diverse carp and sturgeon , as well as salmon and trout . A few species of euryhaline fish, such as European seabass , mullet , and eel , inhabit the Danube Delta and the lower portion of

1410-641: Is believed to have been occupied for about 200,000 years. By 4000 BC, a wave of Neolithics arrived from the Danube River region of eastern Europe. They built substantial wooden houses and introduced pottery decorated with the characteristics of the Linear Pottery culture . Further waves of migrants followed, the Chasséen culture , and the Michelsberg culture . The Celtic tribe in the area were named "Icauna", after

1504-612: Is divided into three main parts, separated by "gates" where the river is forced to cut through mountainous sections: Mean annual discharge on the hydrological stations (period from 2000 to 2023); 1 - Reni , Isaccea ; 2 - Silistra ; 3 - Pristol ; 4 - Batina , Bezdan ; 5 - Nagymaros , Szob ; 6 - Bratislava , Wolfsthal ; 7 - Untergriesbach Multiannual average, minimum and maximum discharge (water period from 1876 to 2010) Simulated water and suspended sediment results from climate-driven decadal study (with STD through specific decade): P – Simulated average precipitation in

1598-581: Is estimated that the Danube upper course will one day disappear entirely in favor of the Rhine, an event called stream capturing . The hydrological parameters of Danube are regularly monitored in Croatia at Batina , Dalj , Vukovar and Ilok . The Danube basin was the site of some of the earliest human cultures. The Danubian Neolithic cultures include the Linear Pottery cultures of the mid-Danube basin. Many sites of

1692-507: Is one of the earliest to detail trellis systems for raising vines off the ground. Columella advocated the use of stakes versus the previously accepted practice of training vines to grow up along tree trunks. The benefits of using stakes over trees was largely to minimize the dangers associated with climbing trees, which was necessary to prune the dense foliage in order to give the vines sunlight, and later to harvest them. Roman expansion across Western Europe brought Roman viticulture to

1786-462: Is one of the poorest and most rural departments in France. During the hundred years leading up to 1962, its population declined by around 100,000, while all of the surrounding departments experienced population growth. Yonne had been bypassed by the development of the railways. As French industry flourished elsewhere in the late nineteenth century, the young people left Yonne seeking better opportunities, and

1880-522: Is the Puisaye , which has a higher elevation and is more wooded. To the centre and east, the land inclines to the northwest where the higher land of the Tonnerrois region lies. To the east the rock is mostly limestone. The Auxerrois region is renowned for the grapes grown here, which are used in the production of Chablis wine. To the south lies the mountainous massif of Morvan , the highest parts of which are in

1974-756: Is the second-longest river in Europe , after the Volga in Russia . It flows through Central and Southeastern Europe , from the Black Forest south into the Black Sea . A large and historically important river, it was once a frontier of the Roman Empire . In the 21st century, it connects ten European countries, running through their territories or marking a border. Originating in Germany ,

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2068-510: Is the cultivation and harvesting of grapes . It is a branch of the science of horticulture . While the native territory of Vitis vinifera , the common grape vine, ranges from Western Europe to the Persian shores of the Caspian Sea , the vine has demonstrated high levels of adaptability to new environments, hence viticulture can be found on every continent except Antarctica . The duties of

2162-653: Is to implement the Danube River Protection Convention by promoting and coordinating sustainable and equitable water management, including conservation, improvement, and rational use of waters and the implementation of the EU Water Framework Directive and the Danube Strategy . The Danube Commission is concerned with the maintenance and improvement of the river's navigation conditions. It was established in 1948 by seven countries bordering

2256-672: The Argonautica by Apollonius Rhodos (Argon. IV. 282). At the end of the Okeanos Potamos , is the holy island of Alba (Leuke, Pytho Nisi, Isle of Snakes ), sacred to the Pelasgian (and later, Greek) Apollo, greeting the sun rising in the east. Hecateus Abderitas refers to Apollo's island from the region of the Hyperboreans, in the Okeanos. It was on Leuke, in one version of his legend, that

2350-459: The Black Sea via the Danube Delta in Romania and Ukraine . Once a long-standing frontier of the Roman Empire , the river passes through or touches the borders of 10 countries. Its drainage basin extends into nine more (ten if Kosovo is included). In addition to the bordering countries (see above), the drainage basin includes parts of nine more countries: Bosnia and Herzegovina (4.6% of

2444-559: The Bystroye Canal . In 2022, there was a major heat wave in Europe. As a result, there was less water flowing in the rivers. As the water level decreased, a number of ship wrecks from World War II emerged in the Danube River. Many of the ships were from Nazi Germany 's Black Sea Fleet and had been scuttled to stop them from falling into enemy hands. The International Commission for

2538-674: The Cyclades Islands of the Aegean Sea . During this period, grape cultivation developed from an aspect of local consumption to an important component of international economies and trade . From 1200 BC to 900 BC, the Phoenicians developed viticulture practices that were later used in Carthage . Around 500 BC, the Carthaginian writer Mago recorded such practices in a two-volume work that

2632-541: The Côte-d'Or , the monks divided the land into separate vineyards, many of which still exist today, like Montrachet and La Romanée . In Greek mythology , the demigod Dionysus ( Bacchus in Roman mythology ), son of Zeus , invented the grapevine and the winepress. When his closest satyr friend died trying to bring him a vine Dionysus deemed important, Dionysus forced the vine to bear fruit. His fame spread, and he finally became

2726-682: The Danubian Limes was the northeastern border of the Empire, with occasional interruptions such as the fall of the Danubian Limes in 259. The crossing of the Danube into Dacia was achieved by the Imperium Romanum , first in two battles in 102 and then in 106 after the construction of a bridge in 101 near the garrison town of Drobeta at the Iron Gate. This victory over Dacia under Decebalus enabled

2820-530: The European Union as true grapes for winegrowing and viticulture. The earliest evidence of grape vine cultivation and winemaking dates back 8,000 years. The history of viticulture is closely related to the history of wine , with evidence that humans cultivated wild grapes to make wine as far back as the Neolithic period. Evidence suggests that some of the earliest domestication of Vitis vinifera occurred in

2914-695: The Habsburg monarchy , Polish–Lithuanian Commonwealth , and Russian Empire for controlling the Danube ( Tuna in Turkish ), which became the northern border of the Ottoman Empire for centuries. Many of the Ottoman–Hungarian Wars (1366–1526) and Ottoman–Habsburg wars (1526–1791) were fought along the river. Viticulture Viticulture ( Latin : vitis cultura , " vine -growing"), viniculture ( vinis cultura , " wine -growing"), or winegrowing

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3008-510: The Last Supper , representing the blood of Christ . It is mentioned several times in the New Testament . We have the parable of the kingdom of heaven likened to the father starting to engage laborers for his vineyard. The vine is used as symbol of Jesus Christ based on his own statement, "I am the true vine (John 15:1)." In that sense, a vine is placed as sole symbol on the tomb of Constantine

3102-620: The PIE * isro- , * sreu 'to flow'. In the Middle Ages, the Greek Tiras was borrowed into Italian as Tyrlo and into Turkic languages as Tyrla ; the latter was further borrowed into Romanian as a regionalism ( Turlă ). The Thraco- Phrygian name was Matoas , "the bringer of luck". The Middle Mongolian name for the Danube was transliterated as Tho-na in 1829 by Jean-Pierre Abel-Rémusat . The modern languages spoken in

3196-542: The Pinot Noir , were also introduced. Les Très Riches Heures du duc de Berry dates back to 1416 and depicts horticulture and viticulture in France. The images illustrate peasants bending down to prune grapes from vines behind castle walls. Additional illustrations depict grape vines being harvested, with each vine being cut to three spurs around knee height. Many of the viticultural practices developed in this time period would become staples of European viticulture until

3290-427: The growing season and around 690 millimetres (27 in) of rainfall throughout the year in order to produce grapes suitable for winemaking. In ideal circumstances, the vine will receive most of the rainfall during the winter and spring months: rain at harvesttime can create many hazards, such as fungal diseases and berry splitting. The optimum weather during the growing season is a long, warm summer that allows

3384-478: The peasant laborers whose livelihood depended on the quantity of wine they could sell. The Riesling is the famous example for higher quality of wine. In 1435 Count John IV. of Katzenelnbogen started this successful tradition. In Burgundy , the Cistercian monks developed the concept of cru vineyards as homogeneous pieces of land that consistently produce wines each vintage that are similar. In areas like

3478-403: The prendeurs were given flexibility in selecting their crop and developing their own vineyard practice. In northern Europe, the weather and climate posed difficulties for grape cultivation, so certain species were selected that better suited the environment. Most vineyards grew white varieties of grape, which are more resistant to the damp and cold climates. A few species of red grape, such as

3572-445: The 18th century. Varietals were studied more intently to see which vines were the most suitable for a particular area. Around this time, an early concept of terroir emerged as wines from particular places began to develop a reputation for uniqueness. The concept of pruning for quality over quantity emerged, mainly through Cistercian labors, though it would create conflict between the rich landowners who wanted higher quality wines and

3666-752: The Danube basin all use names derived from the Latin name Danubius : Danube is an Old European river name derived from the Celtic ' danu ' or ' don ' (both Celtic gods), which itself derived from the Proto-Indo-European * deh₂nu . Other European river names from the same root include the Dunaj, Dzvina/ Daugava , Don , Donets , Dnieper , Dniestr , Dysna and Tana/Deatnu . In Rigvedic Sanskrit , danu (दनु) means "fluid, dewdrop" and danuja (दनु-ज) means "born from danu " or "born from dew-drops". In Avestan ,

3760-431: The Danube basin; T – Simulated average temperature in the Danube basin; Q – Simulated average discharge in the Danube River at delta; S – Simulated sediment load in the Danube River at delta ; Historical average flow to the present day; Measured and reconstructed average water flows from 1742. The reconstructed and observed streamflow (Q – m /s) at Ceatal Izmail for the 1742 to 2022: The land drained by

3854-1035: The Danube extends into many other countries. Many Danubian tributaries are important rivers in their own right, navigable by barges and other shallow-draught boats. From its source to its outlet into the Black Sea, its main tributaries are (as they enter): 18. Tisza (entering near Titel ) 19. Sava (entering at Belgrade ) 20. Timiș (river) (entering at Pančevo ) 21. Great Morava (entering near Smederevo ) 22. Mlava (entering near Kostolac ) 23. Karaš (entering near Banatska Palanka ) 24. Jiu (entering at Bechet ) 25. Iskar (entering near Gigen ) 26. Olt (entering at Turnu Măgurele ) 27. Osam (entering near Nikopol, Bulgaria ) 28. Yantra (entering near Svishtov ) 29. Argeș (entering at Oltenița ) 30. Ialomița 31. Siret (entering near Galați ) 32. Prut (entering near Galați ) The Danube flows through many cities, including four national capitals (shown below in bold), more than any other river in

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3948-559: The Danube flows southeast for 2,850 km (1,770 mi), passing through or bordering Austria , Slovakia , Hungary , Croatia , Serbia , Romania , Bulgaria , Moldova , and Ukraine . Among the many cities on the river are four national capitals: Vienna , Bratislava , Budapest , and Belgrade . Its drainage basin amounts to 817,000 km (315,000 sq mi) and extends into nine more countries. The Danube's longest headstream Breg rises in Furtwangen im Schwarzwald , while

4042-627: The Danube was variously known as Danubius , Danuvius , Ister or Hister . The Latin name is masculine, as are all its Slavic names, except Slovene (the name of the Rhine is also masculine in Latin, most of the Slavic languages, as well as in German). The German Donau ( Early Modern German Donaw , Tonaw , Middle High German Tuonowe ) is feminine, as it has been re-interpreted as containing

4136-591: The Danube's, today subsurface rivers carry much water from the Danube to the Rhine. On many days in the summer, when the Danube carries little water, it completely oozes away noisily into these underground channels at two locations in the Swabian Alb, which are referred to as the Donauversickerung ( Danube Sink ). Most of this water resurfaces only 12 km (7.5 mi) south at the Aachtopf , Germany's wellspring with

4230-512: The Danube. Today the Commission include riparian and non-riparian states. Although the headwaters of the Danube are relatively small today, geologically, the Danube is much older than the Rhine , with which its catchment area competes in today's southern Germany. This has a few interesting geological complications. Since the Rhine is the only river rising in the Alps mountains which flows north towards

4324-523: The Great . The vast majority of the world's wine-producing regions are found between the temperate latitudes of 30° and 50° in each hemisphere . Within these bands, the annual mean temperatures are between 10 and 20 °C (50 and 68 °F). The presence of large bodies of water and mountain ranges can have positive effects on the climate and vines. Nearby lakes and rivers can serve as protection for drastic temperature drops at night by releasing

4418-680: The Greeks borrowed the Istros form from the native Thracians. He proposes that the Romanian name is a loanword from a Turkic language ( Cuman or Pecheneg ). Classified as an international waterway , it originates in the town of Donaueschingen , in the Black Forest of Germany , at the confluence of the rivers Brigach and Breg . The Danube then flows southeast for about 2,730 km (1,700 mi), passing through four capital cities ( Vienna , Bratislava , Budapest , and Belgrade ) before emptying into

4512-702: The North Sea, an invisible line beginning at Piz Lunghin divides large parts of southern Germany, which is sometimes referred to as the European Watershed . Before the last ice age in the Pleistocene , the Rhine started at the southwestern tip of the Black Forest, while the waters from the Alps that today feed the Rhine were carried east by the so-called Urdonau (original Danube). Parts of this ancient river's bed, which

4606-534: The Protection of the Danube River (ICPDR) is an organization that consists of 14 member states (Germany, Austria, the Czech Republic, Slovakia, Slovenia, Hungary, Croatia, Bosnia and Herzegovina, Serbia, Bulgaria, Romania, Moldova, Montenegro, and Ukraine) and the European Union . The commission, established in 1998, deals with the whole Danube river basin, which includes tributaries and groundwater resources. Its goal

4700-626: The Province of Dacia to be created, but in 271 it was abandoned by emperor Aurelian . Avars used the river as their southeastern border in the 6th century. Part of the rivers Danubius or Istros was also known as (together with the Black Sea) the Okeanos in ancient times, being called the Okeanos Potamos (Okeanos River). The lower Danube was also called the Keras Okeanoio (Gulf or Horn of Okeanos) in

4794-455: The River Yonne through locks at Migennes a little further north. The second biggest town is Sens , situated at the confluence of the rivers Vanne and Yonne. The geology of the department is complex with concentric rings of granite, Jurassic, Cretaceous and Tertiary rocks, and layers of sedimentary rocks. The terrain is mostly a low-lying plateau used for agriculture. The southwestern part

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4888-532: The River Yonne which they thought sacred. The region was later occupied by Gallic tribes . In that period, the area came under the control of the Roman Empire , whose chief town was Sens, which they called Agendicum. It was the capital of their province of Gallia Lugdunensis , one of four provinces into which France was divided. The present main roads from Lyon to Boulogne , and from Sens to Alise-Sainte-Reine date from this period. About this time, Auxerre, Tonnerre (Tornodurum) and Avallon were growing in size. In

4982-680: The Serbian and the Romanian stretches of the Danube. However, the transgressions may not be considered acts of piracy, as defined according to the United Nations Convention on the Law of the Sea , but rather instances of "river robbery". On the other hand, media reports say the crews on transport ships often steal and sell their own cargo and then blame the plundering on "pirates", and the alleged attacks are not piracy but small-time contraband theft along

5076-508: The area of the modern countries Georgia and Armenia . The oldest-known winery was discovered in the "Areni-1" cave in Vayots Dzor , Armenia . Dated to c.  4100 BC, the site contained a wine press, fermentation vats, jars, and cups. Archaeologists also found V. vinifera seeds and vines. Commenting on the importance of the find, McGovern said, "The fact that winemaking was already so well developed in 4000 BC suggests that

5170-580: The areas that would become some of the world's best-known winegrowing regions : the Spanish Rioja , the German Mosel , and the French Bordeaux , Burgundy and Rhône . Roman viticulturists were among the first to identify steep hillsides as one of the better locations to plant vines, because cool air runs downhill and gathers at the bottom of valleys. While some cool air is beneficial, too much can rob

5264-488: The basin area), the Czech Republic (2.9%), Slovenia (2.0%), Montenegro (0.9%), Switzerland (0.2%), Italy (<0.15%), Poland (<0.1%), North Macedonia (<0.1%) and Albania (<0.1%). The total drainage basin is 801,463 km (309,447 sq mi) in area, and is home to 83 million people. The highest point of the drainage basin is the summit of Piz Bernina at the Italy–Switzerland border , at 4,049 m (13,284 ft). The Danube River Basin

5358-399: The concept of thinning or sacrificing part of the grape crop, i.e. green harvesting, with the aim of improving the quality of the remaining grapes, predates modern critics, the practice has increased in recent times in vineyards found in California and areas where the grapes grow easily. (McCoy) A field blend is a wine that is produced from two or more different grape varieties interplanted in

5452-469: The crops can be injured. Spring and Fall: Spring and fall are critical seasons for grape development, because the plants are susceptible to frost damage, which can injure the fruiting buds. Wet weather in spring can increase the odds of mildew formation. To prevent mildew, some farms introduce devices such as heaters or large fans in vineyards. However, such solutions can be costly. Hillsides and slopes are preferred over flatter terrain: vines growing on

5546-428: The culture of wine consumption and cultivated grape species. In addition to winemaking, grapes have been grown for the production of raisins . The earliest act of cultivation appears to have been the favoring of hermaphroditic members of the Vitis vinifera species over the barren male vines and the female vines, which were dependent on a nearby male for pollination . With the ability to pollinate itself, over time

5640-486: The department stagnated. The viticulture industry was severely affected by the advent of powdery mildew and the arrival of Phylloxera in the nineteenth century; at the same time, the development of the railway network allowed cheaper wines from other regions to undercut Chablis wine in the Paris market. The once-thriving industry never recovered. By 1945, only 4000 hectares of grapevines remained, and only 471 hectares of grapes were grown for Chablis. More recently,

5734-403: The department was allotted a budget of 410 million euros. The department elects three members of parliament to the National Assembly . In the 2012–17 parliamentary term, two represented the right-wing Union for a Popular Movement (UMP) and one the Socialist Party (France) (PS). Danube River The Danube ( / ˈ d æ n . j uː b / DAN -yoob ; see also other names )

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5828-448: The development of more numerous and mature flavour compounds. In the absence of a green harvest, a healthy, vigorous vine can produce dilute, unripe grapes. In Europe, many appellations restrict the yield permitted from a given area, so there is even more incentive to perform green harvesting when presented with excess crop. Often, the excess must be sold for a pittance and used for industrial alcohol production rather than wine. While

5922-471: The distance to the Black Sea by 400 km (250 mi); the Rhine–Main–Danube Canal is about 171 km (106 mi), finished in 1992, linking the North Sea to the Black Sea. A Danube-Aegean canal has been proposed. Danube River cruise for sightseeing is popular, especially between Passau , Germany, to Budapest , Hungary. In 2010–12, shipping companies, especially from Ukraine, claimed that their vessels suffered from "regular pirate attacks " on

6016-528: The field blend is an anachronism, and almost all wines are assembled by blending from smaller, individual lots. However, in California some of the oldest (and lowest-yielding) Zinfandel comes from vineyards that are field-blended. Ridge Vineyards owns the Lytton Springs vineyards in Sonoma County, which were planted from 1900 to 1905 in what Ridge calls "a traditional field blend of about seventy percent Zinfandel, twenty percent Petite Sirah , and ten percent Grenache and Carignan." Gemischter Satz ( Mixed set )

6110-418: The fourth century, Sens became a walled city. The first bishops were appointed in Sens and Langres , and they influenced the region profoundly because of their power. In 1771, the north-westerly part of the present department belonged to Prince Francis Xavier of Saxony , the uncle of Louis XVI of France . The current Yonne department was organized and defined during the French Revolution, on March 4, 1790, as

6204-477: The gorge) by the Iron Gate II Hydroelectric Power Station . On 13 April 2006, a record peak discharge at Iron Gate Dam reached 15,400 m /s (540,000 cu ft/s). There are three artificial waterways built on the Danube: the Danube-Tisa-Danube Canal (DTD) in the Banat and Bačka regions ( Vojvodina , northern province of Serbia); the 64 km (40 mi) Danube-Black Sea Canal , between Cernavodă and Constanța (Romania) finished in 1984, shortens

6298-447: The grape accounts for 5 to 20% of the total weight of a grape depending on the variety. When grape skin ripens, it contains the majority of the aromatic substances and tannin . These factors become important in winemaking for methods including color extraction or aroma dissolution. Although the skin contains the majority of the tannin, small percentages can be found throughout the grape and during all of its developmental stages. However,

6392-428: The grapes the opportunity to ripen fully and to develop a balance between the levels of acids and sugars in the grape. Hot and sunny climates have a frost-free growing season of 200 days or more. These climates allow grapes to ripen faster with higher sugar levels and lower acidity. Cooler climates have a frost-free growing season of around 150–160 days. Cooler seasons force the grapes to ripen earlier, which produces

6486-416: The heat that the water has stored during the day to warm the vines. Structure of the grape vine There are many different important parts of the grape vine. Starting from the bottom and moving up there are the Fender roots, then above that are the roots . These help with anchorage, absorption and food storage. Then there is the trunk which branches out into arms. These help support conduction. Higher up are

6580-441: The hermaphroditic vines were able to sire offspring that were consistently hermaphroditic. At the end of the 5th century BC, the Greek historian Thucydides wrote: The people of the Mediterranean began to emerge from barbarism when they learnt to cultivate the olive and the vine. Thucydides was most likely referencing the time between 3000 BC and 2000 BC, when viticulture emerged in force in Asia Minor , Greece , and

6674-416: The hero Achilles was buried (to this day, one of the mouths of the Danube is called Chilia). Old Romanian folk songs recount a white monastery on a white island with nine priests. Between the late 14th and late 19th centuries, the Ottoman Empire competed first with the Kingdom of Serbia , Second Bulgarian Empire , Kingdom of Hungary , Principality of Wallachia , Principality of Moldavia and later with

6768-423: The highest flow, an average of 8,500 L/s (300 cu ft/s), north of Lake Constance —thus feeding the Rhine. The European Water Divide applies only for those waters that pass beyond this point, and only during the days of the year when the Danube carries enough water to survive the sinkholes in the Donauversickerung. Since such large volumes of underground water erode much of the surrounding limestone, it

6862-400: The neighbouring department of Nièvre. The department has some forested areas but is mainly used for pasture or cultivated for wheat. The most populous commune is Auxerre , the prefecture. As of 2019, there are 6 communes with more than 5,000 inhabitants: Population development since 1801: Over fifty percent of the inhabitants of the department are engaged in agricultural activities. Yonne

6956-545: The node, inter node, leaves, cluster (of grapes) and the tendril . The tendril helps with support of the plant. The grape is classified as a berry . On the vine, grapes are organized through systems known as clusters. Grape clusters can vary in compactness which can result in long clusters (resulting in the grapes spreading out) or short clusters (resulting in grapes packed together). In some grape species, clusters ripen collectively, which allows them to be harvested together. For others, grapes may ripen individually within

7050-520: The northern barbarian Thracian and Illyrian tribes by advancing from Macedonia as far as the Danube in 336 BCE. Under the Romans, the Danube formed the border of the Empire with the tribes to the north almost from its source to its mouth. At the same time, it was a route for the transport of troops and the supply of settlements downstream. From 37 CE to the reign of the Emperor Valentinian I (364–375)

7144-570: The population trend has been reversed. During the period 1999 to 2007, it rose by 8000 to a total of 341,418. However, with a population of 46 inhabitants per square kilometre, the density in Yonne is still less than half that for the whole of France, which was 100.5 for the same year. The president of the Departmental Council is Patrick Gendraud, elected in 2017. In 2015, the General Council of

7238-621: The river carries its name from its source confluence in the palace park in Donaueschingen onwards. Since ancient times, the Danube has been a traditional trade route in Europe. Today, 2,415 km (1,501 mi) of its total length are navigable. The Danube is linked to the North Sea via the Rhine–Main–Danube Canal , connecting the Danube at Kelheim with the Main at Bamberg . The river

7332-515: The river has been part of a trans-European waterway from Rotterdam on the North Sea to Sulina on the Black Sea, a distance of 3,500 km (2,200 mi). In 1994 the Danube was declared one of ten Pan-European transport corridors , routes in Central and Eastern Europe that required major investment over the following ten to fifteen years. The amount of goods transported on the Danube increased to about 100 million tons in 1987. In 1999, transport on

7426-679: The river was made difficult by the NATO bombing of three bridges in Serbia during the Kosovo War . Clearance of the resulting debris was completed in 2002, and a temporary pontoon bridge that hampered navigation was removed in 2005. At the Iron Gate , the Danube flows through a gorge that forms part of the boundary between Serbia and Romania; it contains the Iron Gate I Hydroelectric Power Station dam, followed at about 60 km (37 mi) downstream (outside

7520-580: The river. The Danube Delta ( Romanian : Delta Dunării pronounced [ˈdelta ˈdunərij] ; Ukrainian : Дельта Дунаю , romanized :  Del'ta Dunayu ) is the largest river delta in the European Union . The greater part of the Danube Delta lies in Romania (Tulcea county), while its northern part, on the left bank of the Chilia arm, is situated in Ukraine (Odesa Oblast). The approximate surface

7614-630: The river. Today the river carries its name from its source confluence in Donaueschingen , Germany , to its discharge into the Black Sea via the Danube Delta in Romania and Ukraine . The river was known to the ancient Greeks as the Istros ( Ἴστρος ) from a root possibly also encountered in the ancient name of the Dniester ( Danaster in Latin, Tiras in Greek) and akin to Iranic turos 'swift' and Sanskrit iṣiras ( इषिरस् ) 'swift', from

7708-503: The river. Members include representatives from Austria, Bulgaria, Croatia, Germany, Hungary, Moldova, Slovakia, Romania, Russia, Ukraine, and Serbia; it meets regularly twice a year. It also convenes groups of experts to consider items provided for in the commission's working plans. The commission dates to the Paris Conferences of 1856 and 1921, which established for the first time an international regime to safeguard free navigation on

7802-516: The same vineyard. In the days before precise varietal identification, let alone rigorous clonal selection , a vineyard might be planted by taking cuttings from another vineyard and therefore approximately copying its genetic makeup. This meant that one vine could be Zinfandel and the next Carignan . When making wine with little equipment to spare for separate vinification of different varieties, field blends allowed effortless, though inflexible, blending. Fermentation tanks are now cheap enough that

7896-639: The same word means "river". The Finnish word for Danube is Tonava , which is most likely derived from the name of the river in German , Donau . Its Sámi name Deatnu means "Great River". It is possible that dānu in Scythian as in Avestan was a generic word for "river": Dnieper and Dniestr , from Danapris and Danastius , are presumed to continue Scythian * dānu apara "far river" and * dānu nazdya- "near river", respectively. In Latin,

7990-581: The sixth-to-third millennium BCE Vinča culture (Vinča, Serbia), are sited along the Danube. The third millennium BCE Vučedol culture (from the Vučedol site near Vukovar , Croatia ) is famous for its ceramics. Darius the Great , king of Persia , crossed the river in the late 6th century BCE to invade European Scythia and to subdue the Scythians . Alexander the Great defeated the Triballian king Syrmus and

8084-574: The south lies Nièvre , to the west lies Loiret and to the northwest, the department of Seine-et-Marne . The River Yonne flows northwards through the department. Auxerre , the capital of the department, is situated on the River Yonne, and the River Serein joins this a few kilometres north of the city. The Canal de Bourgogne , which connects the Mediterranean Sea with the Atlantic Ocean, joins

8178-415: The suffix -ouwe "wetland". Romanian differs from other surrounding languages in designating the river with a feminine term, Dunărea ( IPA: [ˈdunəre̯a] ). This form was not inherited from Latin, although Romanian is a Romance language. To explain the loss of the Latin name, scholars who suppose that Romanian developed near the large river propose that the Romanian name descends from

8272-427: The tannin's most important role is during the grape's ripening stage as its function is to formulate color and body shape. Although many factors can affect the overall quality of a grape vine, the three most important are climate, slope , and soil , often collectively referred to as the terroir . Climate is the most significant external factor in determining a grape's inherent qualities. Each grape variety has

8366-451: The technology probably goes back much earlier." There is also evidence of grape domestication in the Near East in the early Bronze Age , around 3200 BC. Evidence of ancient viticulture is provided by cuneiform sources (ancient writing on clay tablets), plant remains, historical geography, and archaeological excavations. The remnants of ancient wine jars have been used to determine

8460-490: The total area of the Danube Delta reaches 5,165 km (1,994 sq mi). The Danube Delta is also the best-preserved river delta in Europe, a UNESCO World Heritage Site (since 1991) and a Ramsar Site . Its lakes and marshes support 45 freshwater fish species. Its wetlands support vast flocks of migratory birds of over 300 species, including the endangered pygmy cormorant ( Phalacrocorax pygmaeus ). These are threatened by rival canalization and drainage schemes such as

8554-518: The vine of the heat it needs for photosynthesis , and in winter it increases the risk of frost . Catholic monks (particularly the Cistercians ) were the most prominent viticulturists of the Middle Ages . Around this time, an early system of Metayage emerged in France with laborers ( Prendeur ) working the vineyards under contractual agreements with the landowners ( Bailleur ). In most cases,

8648-504: The world. Ordered from the source to the mouth they are: The Danube is navigable by ocean ships from the Black Sea to Brăila in Romania (the maritime river sector), and further on by river ships to Kelheim , Bavaria , Germany; smaller craft can navigate further upstream to Ulm , Württemberg , Germany. About 60 of its tributaries are also navigable. Since the completion of the German Rhine–Main–Danube Canal in 1992,

8742-520: Was much larger than today's Danube, can still be seen in (now waterless) canyons in today's landscape of the Swabian Alb . After the Upper Rhine valley had been eroded, most waters from the Alps changed their direction and began feeding the Rhine. Today's upper Danube is thus an underfit stream . Since the Swabian Alb is largely shaped of porous limestone , and since the Rhine's level is much lower than

8836-584: Was one of the few artifacts to survive the Roman destruction of Carthage during the Third Punic War . The Roman statesman Cato the Elder was influenced by these texts, and around 160 BC he wrote De Agricultura , which expounded on Roman viticulture and agriculture. Around 65 AD, the Roman writer Columella produced the most detailed work on Roman viticulture in his twelve-volume text De Re Rustica . Columella's work

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