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Tiếng Việt; 中文; Edit links ... A fen is a type of peat-accumulating wetland fed by mineral-rich ground or surface water. [1] [2] It is one of the main types ...
Fen meadows have been severely impacted by farming, resulting in hydrological changes, acidification, and nutrient pollution, leaving few preserved into the 21st century. [1] Compositional transformations and increased groundwater flow have the greatest effect this habitat and can degrade peat. [ 2 ]
A variety of mire types in Carbajal Valley, Argentina Avaste Fen, one of the largest fens in Estonia A valley mire creates a level ground surface in otherwise dramatic topography. Upper Bigo Bog, Rwenzori Mountains, Uganda. A peatland is a type of wetland whose soils consist of organic matter from decaying plants, forming layers of peat.
Thus the paludification process includes a shift from forests, grassland or long exposed bare land to peatland. [2] The initiation of this accumulation of organic matter (i.e. peat), can be controlled by both allogenic (i.e. external to the ecosystem) and autogenic (i.e. internal to the ecosystem) factors. [3]
A significant turning point in the study of Papaipema aweme occurred in 2009 when a specimen was unexpectedly discovered in a peatland fen in the backwoods of upper Michigan. This discovery was crucial as it not only confirmed the moth's existence but also shifted the focus of habitat research from sandy and savannah regions to peatland fens. [5]
Peatland river water draining into coastal waters South-East Asia is home to one of the world's largest stores of tropical peatland and accounts for roughly 10 % of the global land-to-sea dissolved organic carbon (DOC) flux.
There are also 270 coral species spread over an area of 1,000 hectares (2,500 acres). In addition, the marine fauna and flora are of 1,323 species including 44 species in the Red Data Book of Vietnam. The park has the richest diversity of 153 species of mollusc species, reported to be the highest for any island in Vietnam.
Vienna (Viên in Vietnamese) is the only city whose name in Vietnamese is borrowed from French [citation needed]. Hong Kong and Macau names are borrowed from English by direct transliteration into Hồng Kông and Ma Cao instead of Hương Cảng and Áo Môn in Sino-Vietnamese pronunciation.