Effects of grazing on wind driven matter fluxes in the Xilingele grassland,Inner Mongolia
Wind erosion and dust storms are common phenomena in the Xilingele region ( Inner Mongolia) and contribute considerably to the redistribution of organic and mineral material in the ecosystem grassland.Fine material deposited by dust storms since long, which is reflected in the grain size distribution of the upper layers of the local loess soils.Activated by an increasing grazing pressure during the last decades, dust emission by local wind erosion had become an important opposing process.Still in the 1980s the Xilingele region was presented as one of the most representative and best‐preserved grasslands of Inner Mongolia (Li et al.1988).Since the 1990s, land degradation induced by overgrazing had become very serious (Li et al.1997).The main functions of the grassland ecosystems consequently have become disturbed and the region is endangered to shift from a natural dust sink to a potential dust source.The objective of this study was to identify the effect of grazing intensity on the wind borne carbon and nitrogen flux.
wind erosion dust storms grazing intensity nutrient balance MAGIM‐project .
C.Hoffmann R.Funk
Institute of Soil Landscape Research,Zalf Muencheberg,Eberswalder Strasse 84,15374 Muencheberg,Germany.
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）