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水土流失做为破坏生态环境、阻碍工农业生产、限制自然资源优势发挥的重要因素之一,是我国大部分地区生态环境系统中所面临的突出问题。本文以1985年云南玉龙雪山东南坡水土流失定点观测的实测数据为依据,着重定量分析了水土流失与其主要影响因子一降雨之间的关系。通过对比研究,阐述了不同降雨特征值对流失土量的影响,提出了雨强递减系数这一新的降雨影响因子。
Soil and water loss, as one of the important factors that destroy the ecological environment, impede the industrial and agricultural production and limit the advantages of natural resources, are the prominent problems that the ecological environment system in most parts of China faces. Based on the measured data of the fixed point observation of southeastern slope of Yunnan Yulong Snow Mountain in 1985, this paper focuses on the quantitative analysis of the relationship between soil erosion and its main influencing factor and rainfall. Through comparative study, the influence of different rainfall eigenvalue on soil loss is expounded, and the new rainfall influence factor of rainfall intensity reduction coefficient is proposed.