Effects of Psammophilic Shrubs on Physical and Chemical Properties of Aeolian Sandy Soil in Hexi Corridor
The influences of different psammophilic shrubs on the physical and chemical properties of aeolian sandy soil were studied in the Hexi Corridor.The results showed that total porosity, aggregate structure, storage capacity, soil organic matter, total N, available P, rapidly available K and CEC, layer thickness, lit ter accumulation of dry matter, water storage, and maximum water holding capacity of different forest shrub could be ranked in a descending order as Haloxylon ammodendron forest shrub＞Mongolion calligonum herb with fruit＞Hedysarum scoparium Frisch＞bare sand(the control).In addition, bulk density, pH value, CaCO3 and total salt of the soils could be ranked as bare sand(the control)＞Hedysarum scoparium Frisch＞ Mongolion calligonum herb with fruit＞Haloxylon ammodendron forest shrub.In short, the Haloxylon ammodendron forest shrub could contribute greatly to soil and water conservation because of its high shrub density and fast accumulation rate of litters.
psammophilic shrubsaeolian sandy soilphysical and chemical properties
国家科技期刊平台
NSTL
万方数据
维普
