太行山低山丘陵区果一草复合系统生态经济效应研究

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

    摘要
  • 摘要: 对太行山低山丘陵区苹果一沙打旺复合系统土壤养分、果树生理生态及产量产值、牧草产量及质量、土地当量值研究结果表明，与清耕果园相比，果一草复合系统可使土壤有机质、速效氮分别提高30％、32％，速效钾降低2．1％，而对速效磷影响较小；苹果叶片叶绿素含量提高24．3％，叶片光合速率提高28％，产量提高15．5％。与单作草场相比，牧草产量提高18．5％，粗蛋白质、粗脂肪、可溶性糖含量分别增加36．4％、27．4％和11．8％。复合系统土地当量值(LER)达1．65。

     

    Abstract: 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．

     

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