森林的采伐会增加径流的流失,而植树造林却有保持水份、改善气候,调节河水流量、防止土壤侵蚀等方面的作用,这是众所周知的事。我国森林亦不断的被采伐与更新,前些年份森林采伐有所增长,但是森林的采伐与更新对河川径流究竟有多大影响与如何发生影响却缺少这方面的试验研究资料。森林、植被与河川径流间的关系,与自然地理 Forest harvesting will increase the loss of runoff. However, it is well known that afforestation has the function of keeping water, improving climate, regulating river flow and preventing soil erosion. The forests in our country are also continuously being cut down and updated. Forest harvesting has been increased in previous years. However, how much influence and how the harvesting and renewal of forests affect river runoff is lacking in the experimental research data in this respect. The relationship between forests, vegetation and river runoff, and natural geography