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47-505: The village of Kašov is an administrative part of Kuks. The name is probably derived from the Old German word for share of mining revenue. According to another theory, the word meant ore smelting remains. Kuks is located about 18 kilometres (11 mi) south of Trutnov and 21 km (13 mi) north of Hradec Králové . It lies on the border of three geomorphological regions: the lowlands of East Elbe Table and Orlice Table , and

94-554: A flood-prone property to qualify for government-subsidized insurance, a local community must adopt an ordinance that protects the floodway and requires that new residential structures built in Special Flood Hazard Areas be elevated to at least the level of the 100-year flood. Commercial structures can be elevated or floodproofed to or above this level. In some areas without detailed study information, structures may be required to be elevated to at least two feet above

141-445: A floodplain. The quantity of sediments in a floodplain greatly exceeds the river load of sediments. Thus, floodplains are an important storage site for sediments during their transport from where they are generated to their ultimate depositional environment. When the rate at which the river is cutting downwards becomes great enough that overbank flows become infrequent, the river is said to have abandoned its floodplain. Portions of

188-781: A simple spa. When the healing effects of the water were proven by professors of the Charles-Ferdinand University and experts from Baden-Baden , Sporck enlarged the spa. In 1696, he had built Chapel of the Assumption of the Virgin Mary, followed by chateau in front of it in 1710. In 1707–1715, the hospital and the Church of the Holy Trinity with the crypt were built. The interiors and exteriors were decorated with Baroque sculptures by Matthias Braun ,

235-546: Is a problem in freshwater systems. Much of the phosphorus in freshwater systems comes from municipal wastewater treatment plants and agricultural runoff. Stream connectivity controls whether phosphorus cycling is mediated by floodplain sediments or by external processes. Under conditions of stream connectivity, phosphorus is better able to be cycled, and sediments and nutrients are more readily retained. Water in freshwater streams ends up in either short-term storage in plants or algae or long-term in sediments. Wet/dry cycling within

282-406: Is advantageous for the rapid colonization of large areas of the floodplain. This allows them to take advantage of shifting floodplain geometry. For example, floodplain trees are fast-growing and tolerant of root disturbance. Opportunists (such as birds) are attracted to the rich food supply provided by the flood pulse. Floodplain ecosystems have distinct biozones. In Europe, as one moves away from

329-401: Is an area of land adjacent to a river . Floodplains stretch from the banks of a river channel to the base of the enclosing valley, and experience flooding during periods of high discharge . The soils usually consist of clays, silts , sands, and gravels deposited during floods. Because of regular flooding, floodplains frequently have high soil-fertility since nutrients are deposited with

376-498: Is any area subject to inundation by a 100-year flood. A problem is that any alteration of the watershed upstream of the point in question can potentially affect the ability of the watershed to handle water, and thus potentially affects the levels of the periodic floods. A large shopping center and parking lot, for example, may raise the levels of 5-year, 100-year, and other floods, but the maps are rarely adjusted and are frequently rendered obsolete by subsequent development. In order for

423-460: Is described as vertical accretion , since the deposits build upwards. In undisturbed river systems, overbank flow is frequent, typically occurring every one to two years, regardless of climate or topography. Sedimentation rates for a three-day flood of the Meuse and Rhine Rivers in 1993 found average sedimentation rates in the floodplain of between 0.57 and 1.0 kg/m . Higher rates were found on

470-539: Is first documented already in 1313. In 1581, it was rebuilt in the Renaissance style, and a tower was added. The neo-Gothic Church of Saints Peter and Paul was built in 1897–1903 and is located in Poříčí. The Bohuslav Martinů Concert Hall is located in the former Lutheran church, built in the neo-Gothic style in 1900. Trutnov is twinned with: Floodplain A floodplain or flood plain or bottomlands

517-489: Is held here every year since 1965. Trutnov has hosted the Trutnov Open Air Music Festival since 1990 and, since 1999, has hosted Obscene Extreme . The historic core comprises the area of Vnitřní Město part of Trutnov, with Krakonoš Square ( Krakonošovo náměstí ) in its centre. The area was delimited by town walls in the 14th century. Their fragments are preserved to this day. The landmark of

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564-565: Is largely a result of flood control, hydroelectric development (such as reservoirs), and conversion of floodplains to agriculture use. Transportation and waste disposal also have detrimental effects. The result is the fragmentation of these ecosystems, resulting in loss of populations and diversity and endangering the remaining fragments of the ecosystem. Flood control creates a sharper boundary between water and land than in undisturbed floodplains, reducing physical diversity. Floodplain forests protect waterways from erosion and pollution and reduce

611-402: Is most common in sections of rivers where the river bed is accumulating sediments ( aggrading ). Repeated flooding eventually builds up an alluvial ridge, whose natural levees and abandoned meander loops may stand well above most of the floodplain. The alluvial ridge is topped by a channel belt formed by successive generations of channel migration and meander cutoff. At much longer intervals,

658-549: Is nowadays owned by the state. Since 1946, the building of the hospital houses a museum of Baroque art and Czech pharmacy. Braun's exterior sculptures also survive, but have been fast eroding due to the action of water, from rainfall and moisture rising from the ground. For this reason, the Kuks Forest Sculptures were listed in the 2000 World Monuments Watch by the World Monuments Fund . With

705-479: Is the Trutnov hospital. The Krakonoš Brewery was founded in 1582 and is one of the oldest breweries in the country. Trutnov is the terminus of an interregional railway line from Prague . There are also railway lines heading from Trutnov to Kolín and Vrchlabí . The ice hockey team HC Trutnov is based in the town. There is a slalom course on the Úpa river in Trutnov. The Trutnovské slalomy competition

752-482: Is well preserved and is protected by law as an urban monument zone . Trutnov is made up of the town parts of Dolní Předměstí, Dolní Staré Město, Horní Předměstí, Horní Staré Město, Kryblice, Střední Předměstí and Vnitřní Město, and the villages of Adamov, Babí, Bohuslavice, Bojiště, Lhota, Libeč, Nový Rokytník, Oblanov, Poříčí, Starý Rokytník, Střítež, Studenec, Volanov and Voletiny. Both the German name Trautenau and

799-540: The Giant Mountains . The highest point is a contour line on the slopes of the Dvorský les Mountain at 965 m (3,166 ft) above sea level. The town proper is situated in the valley of the Úpa River. The first written mention of Trutnov is from 1260. It was founded around 1250 by the Švábenský of Švábenice noble family and originally named Úpa after the eponymous river. In 1301, King Wenceslaus II bought

846-823: The Gross-Rosen concentration camp in March 1944, and a forced labour subcamp of the Stalag VIII-B/344 prisoner-of-war camp for Allied POWs in Libeč. After the war, the remaining German population was expelled in 1945 in accordance with the Potsdam Agreement . The largest employers based in the town are Vitesco Technologies Czech Republic and Tyco Electronics EC Trutnov , both manufacturers of electrical equipment for automotive industry with more than 1,000 employees. The largest non-industrial employer

893-557: The Yellow River in China – see list of deadliest floods . The worst of these, and the worst natural disaster (excluding famine and epidemics), was the 1931 China floods , estimated to have killed millions. This had been preceded by the 1887 Yellow River flood , which killed around one million people and is the second-worst natural disaster in history. The extent of floodplain inundation depends partly on flood magnitude, defined by

940-747: The return period . In the United States, the Federal Emergency Management Agency (FEMA) manages the National Flood Insurance Program (NFIP). The NFIP offers insurance to properties located within a flood-prone area, as defined by the Flood Insurance Rate Map (FIRM), which depicts various flood risks for a community. The FIRM typically focuses on the delineation of the 100-year flood inundation area, also known within

987-604: The Czech name Trutnov are derived from the Old German truten ouwe , which meant "cute floodplain ". Trutnov is located about 39 km (24 mi) north of Hradec Králové . A negligible part of the municipal territory borders Poland . Most of the territory lies in the Giant Mountains Foothills , but it also extends to the Broumov Highlands on the east and a small northern part extends into

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1034-560: The NFIP as the Special Flood Hazard Area. Where a detailed study of a waterway has been done, the 100-year floodplain will also include the floodway, the critical portion of the floodplain which includes the stream channel and any adjacent areas that must be kept free of encroachments that might block flood flows or restrict storage of flood waters. Another commonly encountered term is the Special Flood Hazard Area, which

1081-400: The abandoned floodplain may be preserved as fluvial terraces . Floodplains support diverse and productive ecosystems . They are characterized by considerable variability in space and time, which in turn produces some of the most species-rich of ecosystems. From the ecological perspective, the most distinctive aspect of floodplains is the flood pulse associated with annual floods, and so

1128-511: The advantages provided by the richness of the alluvial soil of the floodplain are severely offset by frequent floods brought on by cyclones and annual monsoon rains. These extreme weather events cause severe economic disruption and loss of human life in the densely-populated region. Floodplain soil composition is unique and varies widely based on microtopography. Floodplain forests have high topographic heterogeneity which creates variation in localized hydrologic conditions. Soil moisture within

1175-467: The channel shifts varies greatly, with reported rates ranging from too slow to measure to as much as 2,400 feet (730 m) per year for the Kosi River of India. Overbank flow takes place when the river is flooded with more water than can be accommodated by the river channel. Flow over the banks of the river deposits a thin veneer of sediments that is coarsest and thickest close to the channel. This

1222-580: The financial support of American Express , pump boxes were installed to drive groundwater away from the sculptures and low-lying vegetation was removed to enhance air circulation in the damp wooded environment. Trutnov Trutnov ( Czech pronunciation: [ˈtrutnof] ; German : Trautenau ) is a town in the Hradec Králové Region of the Czech Republic . It has about 30,000 inhabitants. The historic town centre

1269-472: The flood waters. This can encourage farming ; some important agricultural regions, such as the Nile and Mississippi river basins , heavily exploit floodplains. Agricultural and urban regions have developed near or on floodplains to take advantage of the rich soil and freshwater. However, the risk of inundation has led to increasing efforts to control flooding . Most floodplains are formed by deposition on

1316-448: The floodplain ecosystem is defined as the part of the river valley that is regularly flooded and dried. Floods bring in detrital material rich in nutrients and release nutrients from dry soil as it is flooded. The decomposition of terrestrial plants submerged by the floodwaters adds to the nutrient supply. The flooded littoral zone of the river (the zone closest to the river bank) provides an ideal environment for many aquatic species, so

1363-462: The floodplain has a big impact on phosphorus availability because it alters water level, redox state, pH, and physical properties of minerals. Dry soils that were previously inundated have reduced availability of phosphorus and increased affinity for obtaining phosphorus. Human floodplain alterations also impact the phosphorus cycle. Particulate phosphorus and soluble reactive phosphorus (SRP) can contribute to algal blooms and toxicity in waterways when

1410-599: The floodplain. Other smaller-scale mitigation efforts include acquiring and demolishing flood-prone buildings or flood-proofing them. In some floodplains, such as the Inner Niger Delta of Mali , annual flooding events are a natural part of the local ecology and rural economy , allowing for the raising of crops through recessional agriculture . However, in Bangladesh , which occupies the Ganges Delta ,

1457-465: The impact of floodwaters. The disturbance by humans of temperate floodplain ecosystems frustrates attempts to understand their natural behavior. Tropical rivers are less impacted by humans and provide models for temperate floodplain ecosystems, which are thought to share many of their ecological attributes. Excluding famines and epidemics , some of the worst natural disasters in history (measured by fatalities) have been river floods, particularly in

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1504-448: The inside of river meanders and by overbank flow. Wherever the river meanders, the flowing water erodes the river bank on the outside of the meander. At the same time, sediments are simultaneously deposited in a bar on the inside of the meander. This is described as lateral accretion since the deposition builds the point bar laterally into the river channel. Erosion on the outside of the meander usually closely balances deposition on

1551-417: The inside so that the channel shifts in the direction of the meander without changing significantly in width. The point bar is built up to a level very close to that of the river banks. Significant net erosion of sediments occurs only when the meander cuts into higher ground. The overall effect is that, as the river meanders, it creates a level flood plain composed mostly of point bar deposits. The rate at which

1598-457: The levees (4 kg/m or more) and on low-lying areas (1.6 kg/m ). Sedimentation from the overbank flow is concentrated on natural levees, crevasse splays , and in wetlands and shallow lakes of flood basins. Natural levees are ridges along river banks that form from rapid deposition from the overbank flow. Most of the suspended sand is deposited on the levees, leaving the silt and clay sediments to be deposited as floodplain mud further from

1645-617: The makeup towards ash (49%) with maple increasing to 14% and oak decreasing to 25%. Semiarid floodplains have a much lower species diversity. Species are adapted to alternating drought and flood. Extreme drying can destroy the ability of the floodplain ecosystem to shift to a healthy wet phase when flooded. Floodplain forests constituted 1% of the landscape of Europe in the 1800s. Much of this has been cleared by human activity, though floodplain forests have been impacted less than other kinds of forests. This makes them important refugia for biodiversity. Human destruction of floodplain ecosystems

1692-530: The most famous of which are the Virtues and Vices . Behind the hospital there was a garden, and the whole complex was closed by a cemetery. Sporck died in 1738 and his heirs were not interested in maintaining the spa. A flood in 1740 destroyed most of the infrastructure and put the spa out of business. Kuks turned into a quiet village with mostly German population. In 1896, the uninhabited chateau burnt down and in 1901, its ruins were demolished. In 1938, Kuks

1739-762: The nitrogen-to-phosphorus ratios are altered farther upstream. In areas where the phosphorus load is primarily particulate phosphorus, like the Mississippi River, the most effective ways of removing phosphorus upstream are sedimentation, soil accretion, and burial. In basins where SRP is the primary form of phosphorus, biological uptake in floodplain forests is the best way of removing nutrients. Phosphorus can transform between SRP and particulate phosphorus depending on ambient conditions or processes like decomposition, biological uptake, redoximorphic release, and sedimentation and accretion. In either phosphorus form, floodplain forests are beneficial as phosphorus sinks, and

1786-580: The river may abandon the channel belt and build a new one at another position on the floodplain. This process is called avulsion and occurs at intervals of 10–1000 years. Historical avulsions leading to catastrophic flooding include the 1855 Yellow River flood and the 2008 Kosi River flood . Floodplains can form around rivers of any kind or size. Even relatively straight stretches of river are capable of producing floodplains. Mid-channel bars in braided rivers migrate downstream through processes resembling those in point bars of meandering rivers and can build up

1833-511: The river, the successive plant communities are bank vegetation (usually annuals); sedge and reeds; willow shrubs; willow-poplar forest; oak-ash forest; and broadleaf forest. Human disturbance creates wet meadows that replace much of the original ecosystem. The biozones reflect a soil moisture and oxygen gradient that in turn corresponds to a flooding frequency gradient. The primeval floodplain forests of Europe were dominated by oak (60%) elm (20%) and hornbeam (13%), but human disturbance has shifted

1880-418: The river. Levees are typically built up enough to be relatively well-drained compared with nearby wetlands, and levees in non-arid climates are often heavily vegetated. Crevasses are formed by breakout events from the main river channel. The river bank fails, and floodwaters scour a channel. Sediments from the crevasse spread out as delta -shaped deposits with numerous distributary channels. Crevasse formation

1927-408: The spawning season for fish often coincides with the onset of flooding. Fish must grow quickly during the flood to survive the subsequent drop in water level. As the floodwaters recede, the littoral experiences blooms of microorganisms, while the banks of the river dry out and terrestrial plants germinate to stabilize the bank. The biota of floodplains has high annual growth and mortality rates, which

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1974-594: The square is the neo-Gothic Old Town Hall, nowadays the tourist information centre. In the middle of the square are a statue of Joseph II , a stone fountain with statue of Krakonoš , and the baroque Holy Trinity Column from 1704. The most valuable buildings of Trutnov are the three churches. Church of the Nativity of the Virgin Mary is a Neoclassical building with late Baroque elements from 1756–1782. The Church of Saint Wenceslaus in Horní Staré Město part of Trutnov

2021-459: The surrounding grade. Many State and local governments have, in addition, adopted floodplain construction regulations which are more restrictive than those mandated by the NFIP. The US government also sponsors flood hazard mitigation efforts to reduce flood impacts. California 's Hazard Mitigation Program is one funding source for mitigation projects. A number of whole towns such as English, Indiana , have been completely relocated to remove them from

2068-679: The undulating landscape of the Jičín Uplands . The highest point is at 422 m (1,385 ft) above sea level. The Elbe River flows through the municipality. Before any settlement was established here, the area was used for gold panning . The Kuks village was founded after the spa was founded here. In 1684, the estate was acquired by Count Franz Anton von Sporck . On the slope of the Elbe in Kuks, there used to be mineral springs. In 1692–1696, Count Sporck directed three of them at one place and built

2115-672: The upper 30 cm of the soil profile also varies widely based on microtopography which affects oxygen availability. Floodplain soil stays aerated for long stretches of time in between flooding events, but during flooding, saturated soil can become oxygen-depleted if it stands stagnant for long enough. More soil oxygen is available at higher elevations farther from the river. Floodplain forests generally experience alternating periods of aerobic and anaerobic soil microbe activity which affects fine root development and desiccation. Floodplains have high buffering capacity for phosphorus to prevent nutrient loss to river outputs. Phosphorus nutrient loading

2162-815: The whole area, already called Trutnov. From 1400 to 1599, Trutnov was a dowry town of the Bohemian queens. In 1421, the town was captured by Jan Žižka during the Hussite Wars . Trutnov was the site of the Battle of Trautenau in 1866 during the Austro-Prussian War . During the World War II , the German occupiers operated three forced labour camps for Jewish women, located in Horní Staré Město, Poříčí and Libeč, which all became subcamps of

2209-598: Was annexed by Nazi Germany and administered as part of the Reichsgau Sudetenland . After World War II, the German-speaking population was expelled and replaced by Czech settlers. Kuks is located on the railway line Liberec – Jaroměř . The hospital, church, and pharmacy buildings have been preserved, along with historic furnishings, and are considered masterpieces of the Baroque. The complex

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