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本文应用遥感技术资料调查大流域不同年代的下垫面组成及其结构变化,结合流域历年实测的水文资料和对不同森林植被—土壤类型降雨截留、枯落物贮存、土壤孔隙贮水及土壤渗透性的测定,评价不同森林植被—土壤系统的涵水能力,研究森林植被覆盖率变化对河川径流的影响研究表明,河川径流总量受大气候的影响.流域森林植被的变化对河川径流的构成和年内分配有决定性作用,大流域森林的采伐和恢复对河川径流的影响是一个渐变的过程.
In this paper, the data of remote sensing technology was used to investigate the composition and structure of the underlying surface in different years in the basin. Combined with the hydrological data measured over the years and the rainfall interception, litter storage, soil water storage and soil infiltration The study on the influence of the change of forest cover on the runoff of the forest shows that the total runoff of the river is affected by the general climate.The changes of the forest vegetation in the catchment contribute to the formation of the runoff Distribution during the year has a decisive role in the impact of large-scale forest harvesting and restoration on river runoff is a gradual process.