摘要
水源涵养林是具有特殊意义的防护林种,具有很好的涵养水源、保持水土、净化水质等功能。从森林植被对水量、径流泥沙和水质的影响等方面介绍了国内外水源涵养林水文生态效应的研究进展。从各国的研究成果来看,普遍认为森林覆盖率的减少可以增加流域产水量;森林植被可以减少径流泥沙含量并能有效改善溪流水质状况。
Water conservation forest is a special kind of protection forests. It can protect water resources, control soil erosion, purify water quality and so on. The research progress in the effect of water conservation forest on water yield, sediment output and water quality was summarized. The annual water yield increase following the cut down of the forest was generally observed at the worldwide scale. Forest vegetation can control the erosion and purify water quality.
出处
《防护林科技》
2004年第2期23-26,共4页
Protection Forest Science and Technology
