坡地赤红壤不同利用模式对土壤磷和酶的影响  

The Effect of Different Land Use Models of Lateritic Red Soil in Slope Land on Soil Phosphate and Enzyme

作　　者：甘海华[1] 戴军[1] 吴顺辉[1] 梁中龙[1] 李永涛[1] 

机构地区：[1]华南农业大学资环学院,广东广州510642

出　　处：《土壤通报》2002年第1期35-38,共4页Chinese Journal of Soil Science

基　　金：国家"九五"攻关项目 (96 0 0 4 0 3 1 0 );芭田基金 (BJ2 0 0 0 0 2 )资助

摘　　要：试验采用广东东莞花岗岩发育的坡地赤红壤为样品进行研究表明 :在坡地赤红壤的 4种利用模式中 ,旱地种植花生 ,荔枝可以有效地改善土壤的酸性 ,提高土壤肥力 ;提高土壤Al-P和Fe -P的含量 ,减少O -P的所占的比例 ,提高坡地赤红壤磷酸盐的有效性 ;增加土壤表层的脲酶和蛋白酶的活性 。Four land utilization models in lateritic red soil of slope land in Dongguan city, Guangdong province were studies in this paper. The results showed that peanut and lichi model can effectively increase soil acidity, and heighten soil fertility, which can increase the content of Al-P and Fe-P,decrease the content of O-P,and enhance the phosphate validity of lateritic red soil, which can increase the urease and protease activities in surface soil,while may reduce the soil phosphatase activity.

关 键 词：利用模式 赤红壤 土壤磷 土壤酶 坡地 

分 类 号：S155.25[农业科学—土壤学]