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Mesotrophic grasslands in the British National Vegetation Classification system : ウィキペディア英語版 | Mesotrophic grasslands in the British National Vegetation Classification system The mesotrophic grassland communities in the British National Vegetation Classification system were described in Volume 3 of ''British Plant Communities'', first published in 1992, along with the calcicolous grassland communities and the calcifugous grasslands and montane communities. In total, 13 mesotrophic grassland communities have been identified: * two communities in which False Oat-grass is the characteristic grass species (one of these, community MG1, is widespread throughout Britain; the other, MG2, is confined to northern England). * four communities of well-drained permanent pastures and meadows, two of which (MG5 and MG6) are widespread and the other two (MG3 and MG4) more localised * a single community (MG7) covering a variety of widespread types of Perennial Rye-grass long-term ley * three widespread communities associated with poorly drained permanent pastures (MG8, MG9, MG10) * three grass-dominated inundation communities, one of which, MG13, is widespread, the other two, MG11 and MG12, more localised ==List of mesotrophic grassland communities==
The following is a list of the communities that make up this category: * MG1 ''Arrhenatherum elatius'' grassland ''Arrhenatheretum elatioris'' Br.-Bl. 1919 * MG2 ''Arrhenatherum elatius - Filipendula ulmaria'' tall-herb grassland ''Filipendulo-Arrhenatheretum elatioris'' Shimwell 1968a * MG3 ''Anthoxanthum odoratum - Geranium sylvaticum'' grassland * MG4 ''Alopecurus pratensis - Sanguisorba officinalis'' grassland * MG5 ''Cynosurus cristatus - Centaurea nigra'' grassland ''Centaureo-Cynosuretum cristati'' Br.-Bl. & Tx 1952 * MG6 ''Lolium perenne - Cynosurus cristatus'' grassland ''Lolio-Cynosuretum cristati'' (Br.-Bl. & De Leeuw 1936) R. Tx 1937 * MG7 ''Lolium perenne'' leys and related grasslands Lolio-Plantaginion Sissingh 1969 p.p. * MG8 ''Cynosurus cristatus - Caltha palustris'' grassland * MG9 ''Holcus lanatus - Deschampsia cespitosa'' grassland * MG10 ''Holcus lanatus - Juncus effusus'' rush-pasture ''Holco-Juncetum effusi'' Page 1980 * MG11 ''Festuca rubra - Agrostis stolonifera - Potentilla anserina'' grassland * MG12 ''Festuca arundinacea'' grassland ''Potentillo-Festucetum arundinaceae'' Nordhagen 1940 * MG13 ''Agrostis stolonifera - Alopecurus geniculatus'' grassland
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