植被类型变化对民勤地区土壤肥力的影响  

Impact of Change of Plant Types on Soil Fertility in Minqin County

作　　者：郭晔红[1] 汪杰[1] 张晓琴[1] 魏怀东[1] 

机构地区：[1]甘肃省治沙研究所

出　　处：《甘肃林业科技》1998年第4期13-16,共4页Journal of Gansu Forestry Science and Technology

摘　　要：民勤是受干旱、风沙威胁最为严重的地区之一，综合治沙是改变该区环境的重要手段之一，其中植物固沙是综合治沙的关键。文中就几种沙生植物群落对土壤肥力影响的研究结果表明：不同植被类型对土壤肥力的影响不同，Ｎ、Ｐ、Ｋ的转化速度也不同。Minqin is an area which is seriously threatened by drought and desert encroachment. Integrated desert control is the main way to change environment of this area, sand-fixation through planting trees is the key in integrated desert control ,this paper researches several desert plant communities different impact of different plant communities on soil fertility ,and on the change speed of N.P.K.Also the impact of plant types on soil fertility is summarized.

关 键 词：植被类型 土壤肥力 综合治沙 

分 类 号：S158.3[农业科学—土壤学]