【摘要】 为探索红壤坡耕地表土资源生产力及其影响因子的关系,2014年4月在江西水土保持生态科技园设置花生盆栽实验,通过0、10、20、30和40 cm 5种不同表土回填厚度(分别以C0,C10,C20,C30和C40代表),分析不同表土厚度下对表土质量、土壤抗蚀性影响。结果表明,表土回填厚度在0~40 cm,随着表土回填厚度的增加,土壤综合质量指数分别为0.99、2.01、2.26、2.77和2.84,且C30和C40处理之间无显著性差异;土壤抗蚀性指标主成分分析综合指数分别为5.75、6.83、8.24、12.70和8.62;故研究结果表明,表土回填厚度为40 cm时,其保肥效果最佳。更多还原

【Abstract】 In order to probe the relationship between the productivity of topsoil resources in slopeland of red soil and its influencing factors,the study carried out a potting experiment using topsoil of 5 different thicknesses( 0,10,20,30,40 cm) to analyze the relationship between the soil quality and soil anti-erodibility in the Water and Soil Conservation Ecological Science and Technology Park of Jiangxi Province. And the results show that in the thickness range of 0-40 cm and in the order of from thinness to thickness,the comprehensive quality indexes of soil are 0. 99,2. 01,2. 26,2. 77,and 2. 84 respectively,and there is no manifest difference between C30 and C40. The comprehensive indexes of leading indicators of soil anti-erodibility are 5. 75,6. 83,8.24,12. 70 and 8. 62 respectively. Consequently,in this experiment,the red topsoil can best conserve fertilizers when the topsoil thickness is 40 cm.更多还原