福建省长汀县水土流失区土壤退化及其恢复研究

Study on the Soil Degradation and Restoration in the Soil Erosion Areas of Changting County of Fujian Province

土壤退化是指在不利的自然条件和人类对土壤的不合理利用等因素影响下,造成水土流失,导致土壤物理、化学和生物学性质的下降过程。本文通过对长汀县不同侵蚀强度水土流失区的土壤调查,分析其土壤退化的因子,并对长汀强度侵蚀区治理2～3年、10年、15年和30年的样地进行布点调查、取样分析其土壤理化性质,来研究水土流失治理区土壤恢复过程。

Soil degradation refers to the process of soil erosion caused by adverse natural conditions and unreasonable use of soil by human beings, which leads to the decline of soil physical, chemical and biological properties. In this paper, it was analyzed the factors of soil degradation by the soil investigation in soil erosion areas with different erosion intensities of Changting County, and studied the process of soil restoration in soil erosion control areas by site investigation, sampling and analysis of the physical and chemical properties of soil with two to three years, ten years, fifteen years and thirty years in the intensity soil erosion control areas of Changting County.