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Hamburger Hallig
Hamburger Hallig ( da, Hamborg hallig, North Frisian: ''Hamborjer Håli'') is an area on the westcoast of Nordfriesland district in Schleswig-Holstein, Germany, that is not protected by sea dikes. It is therefore counted among the Halligen islands. History The island was named after two merchants from Hamburg, the brothers Rudolf and Arnold Amsinck. They were granted a privilege to purchase and maintain land in the northeastern area of Strand island, where they constructed dikes in the years 1624 to 1628. The newly secured land was called the Amsinck polder. However, the Burchardi Flood of 1634 destroyed the dikes, leaving only one artificial dwelling hill with "Hamburger Haus" amburg houseon it intact. Afterwards the dikes were restored at high financial costs. In 1661, the house was torn down and replaced by a smaller building. In 1711, the island had again become an undiked Hallig. It remained property of the Amsick family until 1760. The name "Hamburger Hallig" was first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nordfriesland
Nordfriesland (; da, Nordfrisland; frr, Nordfraschlönj ), also known as North Frisia, is the northernmost district of Germany, part of the state of Schleswig-Holstein. It includes almost all of traditional North Frisia (with the exception of the island of Heligoland), as well as adjacent parts of the Schleswig Geest to the east and Stapelholm to the south, and is bounded (from the east and clockwise) by the districts of Schleswig-Flensburg and Dithmarschen, the North Sea and the Danish county of South Jutland. The district is called ''Kreis Nordfriesland'' in German, ''Kreis Noordfreesland'' in Low German, ''Kris Nordfraschlönj'' in Mooring North Frisian, ''Kreis Nuurdfresklun'' in Fering North Frisian and ''Nordfrislands amt'' in Danish. As of 2008, Nordfriesland was the most visited rural district in Germany. History The sea has always had a strong influence in the region. In medieval times, storm tides made life in what is now Nordfriesland rather dangerous. Onl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polder
A polder () is a low-lying tract of land that forms an artificial hydrological entity, enclosed by embankments known as dikes. The three types of polder are: # Land reclaimed from a body of water, such as a lake or the seabed # Flood plains separated from the sea or river by a dike # Marshes separated from the surrounding water by a dike and subsequently drained; these are also known as ''koogs'', especially in Germany The ground level in drained marshes subsides over time. All polders will eventually be below the surrounding water level some or all of the time. Water enters the low-lying polder through infiltration and water pressure of groundwater, or rainfall, or transport of water by rivers and canals. This usually means that the polder has an excess of water, which is pumped out or drained by opening sluices at low tide. Care must be taken not to set the internal water level too low. Polder land made up of peat (former marshland) will sink in relation to its previous l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hamburger Hallig
Hamburger Hallig ( da, Hamborg hallig, North Frisian: ''Hamborjer Håli'') is an area on the westcoast of Nordfriesland district in Schleswig-Holstein, Germany, that is not protected by sea dikes. It is therefore counted among the Halligen islands. History The island was named after two merchants from Hamburg, the brothers Rudolf and Arnold Amsinck. They were granted a privilege to purchase and maintain land in the northeastern area of Strand island, where they constructed dikes in the years 1624 to 1628. The newly secured land was called the Amsinck polder. However, the Burchardi Flood of 1634 destroyed the dikes, leaving only one artificial dwelling hill with "Hamburger Haus" amburg houseon it intact. Afterwards the dikes were restored at high financial costs. In 1661, the house was torn down and replaced by a smaller building. In 1711, the island had again become an undiked Hallig. It remained property of the Amsick family until 1760. The name "Hamburger Hallig" was first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coastal Management
Coastal management is defence against flooding and erosion, and techniques that stop erosion to claim lands. Protection against rising sea levels in the 21st century is crucial, as sea level rise accelerates due to climate change. Changes in sea level damage beaches and coastal systems are expected to rise at an increasing rate, causing coastal sediments to be disturbed by tidal energy. Coastal zones occupy less than 15% of the Earth's land area, while they host more than 40% of the world population. Nearly 1.2 billion people live within 100 km of shoreline and 100 m of sea level, with an average density 3 times higher than the global average for population. With three-quarters of the world population expected to reside in the coastal zone by 2025, human activities originating from this small land area will impose heavy pressure on coasts. Coastal zones contain rich resources to produce goods and services and are home to most commercial and industrial activities. Histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pied Avocet
The pied avocet (''Recurvirostra avosetta'') is a large black and white wader in the avocet and stilt family, Recurvirostridae. They breed in temperate Europe and across the Palearctic to Central Asia then on to the Russian Far East. It is a migratory species and most winter in Africa or southern Asia. Some remain to winter in the mildest parts of their range, for example in southern Spain and southern England. The pied avocet is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies. Taxonomy The pied avocet was one of the many bird species originally described by Carl Linnaeus in his landmark 1758 10th edition of ''Systema Naturae'', where it was given the binomial name of ''Recurvirostra avosetta''. This species gets its English and scientific names from the Venetian word ''avosetta''. It appeared first in Ulisse Aldrovandi's ''Ornithologia'' (1603). While the name may refer to black and white outfits once wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nature Reserve
A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, or features of geological or other special interest, which is reserved and managed for purposes of conservation and to provide special opportunities for study or research. They may be designated by government institutions in some countries, or by private landowners, such as charities and research institutions. Nature reserves fall into different IUCN categories depending on the level of protection afforded by local laws. Normally it is more strictly protected than a nature park. Various jurisdictions may use other terminology, such as ecological protection area or private protected area in legislation and in official titles of the reserves. History Cultural practices that roughly equate to the establishment and maintenance of reserved areas for animals date bac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artesian Aquifer
An artesian aquifer is a confined aquifer containing groundwater under positive pressure. An artesian aquifer has trapped water, surrounded by layers of impermeable rock or clay, which apply positive pressure to the water contained within the aquifer. If a well were to be sunk into an artesian aquifer, water in the well-pipe would rise to a height corresponding to the point where hydrostatic equilibrium is reached. A well drilled into such an aquifer is called an ''artesian well''. If water reaches the ground surface under the natural pressure of the aquifer, the well is termed a ''flowing artesian well''. Fossil water aquifers can also be artesian if they are under sufficient pressure from the surrounding rocks, similar to how many newly tapped oil wells are pressurized. From the previous statement, it can be inferred that not all aquifers are artesian (i.e., water table aquifers occur where the groundwater level at the top of the aquifer is at equilibrium with atmospher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Reclamation
Land reclamation, usually known as reclamation, and also known as land fill (not to be confused with a waste landfill), is the process of creating new land from oceans, seas, riverbeds or lake beds. The land reclaimed is known as reclamation ground or land fill. In some jurisdictions, including parts of the United States, the term "reclamation" can refer to returning disturbed lands to an improved state. In Alberta, Canada, for example, reclamation is defined by the provincial government as "The process of reconverting disturbed land to its former or other productive uses." In Oceania, it is frequently referred to as land rehabilitation. History One of the earliest large-scale projects was the Beemster Polder in the Netherlands, realized in 1612 adding of land. In Hong Kong the Praya Reclamation Scheme added of land in 1890 during the second phase of construction. It was one of the most ambitious projects ever taken during the Colonial Hong Kong era.Bard, Solomon. 002 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sluice
Sluice ( ) is a word for a channel controlled at its head by a movable gate which is called a sluice gate. A sluice gate is traditionally a wood or metal barrier sliding in grooves that are set in the sides of the waterway and can be considered as a bottom opening in a wall. Sluice gates are one of the most common hydraulic structures in controlling flow rate and water level in open channels such as rivers and canals. They also could be used to measure the flow. A water channel containing a sluice gate forms a type of lock to manage the water flow and water level. It can also be an open channel which processes material, such as a River Sluice used in gold prospecting or fossicking. A mill race, leet, flume, penstock or lade is a sluice channeling water toward a water mill. The terms sluice, sluice gate, knife gate, and slide gate are used interchangeably in the water and wastewater control industry. They are also used in wastewater treatment plants and to recover minerals in minin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bordelum
Bordelum ( North Frisian: ''Boorlem'') is a municipality in the district of Nordfriesland, in Schleswig-Holstein, Germany Germany,, officially the Federal Republic of Germany, is a country in Central Europe. It is the second most populous country in Europe after Russia, and the most populous member state of the European Union. Germany is situated betwe .... References Nordfriesland {{Nordfriesland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fascine
A fascine is a rough bundle of brushwood or other material used for strengthening an earthen structure, or making a path across uneven or wet terrain. Typical uses are protecting the banks of streams from erosion, covering marshy ground and so on. In war they have often been used to help armiesin modern times, especially tanks and other vehiclescross trenches, valleys, marshes, muddy or uneven terrain, etc. Early military use Fascine bundles were used defensively for revetting (shoring up) trenches or ramparts, especially around artillery batteries, or offensively to fill in ditches and cross obstacles on a battlefield. Fascine bridges are a regularly attested feature of Roman military engineering and would have been widespread in the ancient world due to their usefulness and ease of construction. During the Siege of Alesia, the Gauls repeatedly attempted to repel the invading Romans by filling their trenches in with fascines and covering their traps, to support their counter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Frisia
North Frisia (; ; ) is the northernmost portion of Frisia, located in Schleswig-Holstein, Germany between the rivers Eider and Wiedau. It also includes the North Frisian Islands and Heligoland. The region is traditionally inhabited by the North Frisians. History Ancient settlements The geestland islands along the North Frisian coastline were already densely settled in the time of the early Roman Empire while the marshes further inland were not suited for settling. Only a few ancient marshland settlements have been found during archaeological excavations, namely in the modern area of southern Sylt, the Wiedingharde and along the southern Eiderstedt peninsula. With the beginning of the Migration Period, the number of settlements in North Frisia became ever lesser and many were totally abandoned. A new increase in population in the 8th century has been attributed to immigration but it is thought that the area had not been completely depopulated before.Kühn, Hans Joachim, "Archäo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
