侵蚀土壤物理性质变化及其与土壤氮素迁移转化的关系

Relationship between Physical Properties of Eroded Soil and Nitrogen Transformation

侵蚀破坏土壤团聚体结构,使团聚体破碎产生更小的可迁移颗粒而导致土壤养分的运移;侵蚀还改变了土壤的水分状况,水蚀在一定程度上增加了土壤的含水量,风蚀则可使土壤的含水量降低。团聚体结构的破坏以及土壤水分状况的改变与土壤的氮素迁移转化过程有着密切的联系。本文仅对土壤侵蚀造成的土壤物理性状的改变与土壤氮素迁移转化作一概述,并就耕作、覆盖等降低土壤侵蚀的农业措施与土壤氮素转化的关系进行阐述,提出了侵蚀土壤氮素研究的去向。

Erosion can destroy the structure of soil aggregate, and result in aggregate breakage, so soil nutrient was transported. Erosion can change the soil water status, water erosion can increase soil water content, on the contrary, wind erosion can reduce soil water content, there was a close relationship between nitrogen transformation and aggregate breakage, soil water status. A review on the effects of soil erosion on physical properties and nitrogen transformation was given, and the relationships of agriculture measures of reduce soil erosion and soil nitrogen transformation were expatiated, and also the future research of eroded soil nitrogen was put forward in the paper.