土壤水力侵蚀对土壤质量理化指标影响的研究综述

Review of Studies on the Effects of Soil Water Erosion on Physical and Chemical Properties of Soil Quality

土壤水力侵蚀对土壤理化性质的影响对控制土壤侵蚀、采取合理水土保持措施有着重要意义。该研究从土壤质量理化指标(土壤容重、土壤团聚体、土壤颗粒组成、土壤有机碳、土壤养分、阳离子交换量、土壤酸碱度)7个方面总结了土壤水力侵蚀对土壤质量影响的研究成果,系统地研究了土壤水力侵蚀影响土壤质量理化指标的过程和机理,筛选出反映土壤水力侵蚀的土壤理化基础指标因子,并分析了这些指标因子对土壤水力侵蚀的响应状况,总结了目前土壤水力侵蚀对土壤理化性质研究中存在的问题,对未来重点研究方向进行了展望,以期为深入研究水力侵蚀与土壤理化指标间的交互作用和反馈机制提供参考,为土壤质量评价研究提供基础理论依据和研究思路。

The influence of soil hydraulic erosion on soil physical and chemical properties is of great significance to control soil erosion and take reasonable soil and water conservation measures.From seven aspects of the physical and chemical indicators of soil quality,such as soil bulk density,soil aggregate,soil grain composition,soil organic carbon,soil nutrient,cationexchange capacity,and soil pH value,the research results of soil water erosion effects on soil quality were summarized.The processes and the mechanisms of the effects of soil water erosion on physical and chemical indexes of soil quality were systematically studied.Soil physicochemical basic index factors reflecting the soil water erosion were screened.The responses of these index factors to soil water erosion conditions were analyzed.The present existing problems of the effects of soil hydraulic erosion on soil physical and chemical properties were discussed,and the future key research directions were looked forward in order to provide references for in-depth research on the interaction and feedback mechanism between hydraulic erosion and soil physical and chemical properties,and the basic theoretical basis and research ideas for soil quality evaluation.