Spatial distribution of soil organic matter in Ebinur lake wetland

In this paper,soil organic matter,alkali-hydro nitrogen,available P,available K of Ebinur Lake wetland' soil were selected as the determination indicators.The results of analysis of the indicators with statistical method and the Arcgis method showed that soil organic matter content is of evapo-salinization meadows soil sandy soilgray-brown desert soilsandy soil.Spatial distribution rule of upper soil organic matter in Ebinur lake wetlands is that it is decreasing in the east,west,south of the lake,it is decreasing after increasing in the north of the lake.The trend of middle soil organic matter in Ebinur lake wetland is the same with the upper in the west,it is higher in the north and lower in the east and south of the lake.The trend of lower soil organic matter in Ebinur lake wetlands is decreasing in the west and north of the lake,the soil organic matter is higher in the east and lower in the south of the lake.The soil organic matter of the evapo-salinization meadows soil is decreasing,the trend is abvious.The upper soil organic matters of the sandy soil and gray-brown desert soil are higher than that in middle and lower layers of soils.The difference of the content is very little between middle and lower layers.There is a good correlation in the organic matter and the alkali-hydro nitrogen,available P and available K.