Soluble salt content and different
salt ions content were measured in different density
Vicia villosa fields for studying the effect of soil salt restraint on Vicia villosa. The results showed that in 0~100 cm soil layer, the average
Soluble salt content in high, middle and low density Vicia villosa fields was 78.5%?74.7% and 71.1% less than that in the control respectively, the average soluble salt content in different treatments and the control is very significant difference (SSR 0.01 ) on statistic analysis; in 0~20 cm soil layer, the average soluble salt content decreased most obviously; With deepening of soil layer, various of soluble salt content and the salt ions content was as following: high in surfacelow in middlehigh in bottom; With decrease of soluble salt content, the salt ions content changed accordingly, K+/Na+ ratio reduce in
salinization soil after planting Vicia villosa; In different density Vicia villosa treatments, K+,Na+,Ca2+,Mg2+ and Cl- had obvious law ,but SO42 was not. It is considered that planting Vicia villosa in salty land will play very important role in both developing economy and improving ecology environment in west salinization land.