Taking Mu Us sandland as the study areas

the ecological stoichiometric characteristics of wetland soils with different types and their indications were studied. Results showed that: (1) The distribution of organic carbon and total nitrogen contents appeared the same tendency

Their contents were declined with the distance from the center of the lake. (2) The vertical distribution of organic carbon

total nitrogen and total phosphorus in the sediments of the lakeside zone were declined with the depth of soil layer

their contents were in the order of 0—10 cm＞10—20 cm＞20—40 cm. The variation of total phosphorus in the sediments of the lakeside zone lagged behind organic carbon and total nitrogen

and the horizontal distribution of the total phosphorus was different from those of organic carbon and total nitrogen

but the vertical distribution was similar to the latter two. (3) Soil water and soil bulk density were the key factors influencing the nutrient distribution and the changes of C/P and N/P rations of sediments. Analysis of ecological stoichiometry characteristics showed that C/N

C/P and soil carbon storage in the area that far from the center of the lake appeared the same tendency

the tendency was related with the distance from the center of the lake. The C/N ratios of the area that closed to the center of the lake had no signification correlation with soil carbon storage.