Effects of Eco-blanket Covering on Soil Environment and Vegetation Restoration of the Desertification Grassland in Zoigê
In order to cut off the extension of the desertification in Zoigê grasslands, it is urgent to carry out the study of grassland desertification control model. The effects of eco-blanket cover on soil environmental , plant community coverage and biomass were studied in the semi - fixed sandy land and the mobile sandy land of Zoigê grassland. The results showed that, one year later, the eco-blanket covering effectively improved plant community coverage and biomass. Compared to the treatment data, the increment in the mobile sandy land was higher than that in the semi-fixed sandy land,the plant community coverage and biomass treated with eco-blanket covering were 1.20 and 1.19 times respectively, while mobile sandy land was 4.74 and 2.83 times, respectively. The eco-blanket covering also decreased soil temperature, increased soil water content and the maximum water holding capacity in both sandy lands, and the soil electric conductivity was increased by 0.01 ms · cm-1 in both sandy lands. The soil bulk density of the cover and control in the semi-fixed sandy land was equal, while that of the cover was 0.02 g · cm-3 lower than control in the mobile sandy land. The effect of the eco-blanket covering in the recovery of mobile sandy land was better than that of semi-fixed sandy land in the early stage of covering. The influence of the eco-blanket covering in soil environment indicators was not significant, which may be due to the shorter test cycle.
NETL
NSTL
万方数据
维普
