土壤密度对土壤抗侵蚀性的影响  

Effects of Soil Density on Soil Erosion Resistance

作　　者：王健[1] 刘旦旦[1] 张鹏辉[1] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨凌712100

出　　处：《灌溉排水学报》2013年第1期65-68,共4页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(40871133);陕西省日元贷款项目(K332020023);西北农林科技大学基本科研业务费科研创新专项(QN2011152)

摘　　要：通过研究不同密度土壤的抗冲性、抗蚀性及抗剪强度,探索密度与土壤抗侵蚀性之间的相关关系,并进一步分析密度对土壤抗侵蚀性影响的机理。研究表明,随着土壤密度的增大,土壤的抗冲性与抗剪强度增强;但在土壤密度小于1.27g/cm3时,土壤的抗蚀性随着土壤密度的增大而增加,当土壤密度大于1.27g/cm3时,土壤的抗蚀性随着土壤密度的增大而减小。In this study, the correlation between the soil density and soil erosion resistance was explored by researching the anti-scouring ability, the soil anti erodibility and the soil sheer strength. The results showed that soil anti-scouring ability and soil sheer strength were enhanced with the increase of soil densi- ty; but the soil anti erodibility was not same. When the soil density was lower than 1.27 g/cm3 , the soil anti erodibility was enhanced with the increase of soil density, otherwise it decreased with the increase of soil density.

关 键 词：土壤密度 土壤抗侵蚀性 

分 类 号：S157.1[农业科学—土壤学]