Effects of silvopastoral system on ecology and economics in the hilly land of Taihang Mountain

The effects of Apple-A ．adsurgens system on ecology，physiology and yield，and land equivalent ration in the hilly land of Taihang Mountain are studied．The results show that the contents of organic matter available N in the 0～50cm soil increase by 30％ and 32％ compared with the pure apple tree stand(CK₁)respectively，and the content of available K decreases by 2．1％;the content of chlorophyll and the photosynthetic rate of the apple tree leaves and apple yield increase by 24．3％，28％ and 15．5％ compared with CK₁ respectively；the dried matter yield，the content of coarse protein，the coarse adipose and soluble sugar of A ．adsurgens increase by 18．5％，36．4％，27．4％and 11．8％ compared with the sole A．adsurgens．system (CKⅡ)respectively，the land equivalent ration(LER)of this system is 1．65．