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Study on the quantitative comparison of regulation function of streamflow between natural broad-leaved forest and needle-leaved plantation.

天然阔叶林与针叶林径流调节功能定量比较研究

基本信息

批准号：
61440015
负责人：
MURAI Hiroshi
金额：
$ 7.68万
依托单位：
Shizuoka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (A)
财政年份：
1986
资助国家：
日本
起止时间：
1986 至 1988
项目状态：
已结题

项目摘要

1. The obserbation of various factors relating to water balance was performed for the natural broad-leaved forest land (A), the forest land of man-made Hinoki middle-aged stand converted from it (B), and that of the young stand (C) at the foot of Mt. Fuji as the subject of study.2. The comparative measurement of infiltration capacity and water storage capacity of soil was carried out at many places in the broad-leaved forest land, the cut-over area, and the forest land of needleleaved plantation respectively.3. The analysis of streamflow before and after the treatment was performed on the basis of inflow watershed where the greater part of natural broad-leaved forest was converted into the needle-leaved plantation.Summarizing above-mentioned result of the study, it is sure that the respective function as to forest hydrology is higher in the natural broad-leaved forest than in the needle-leaved plantation. Cutting and the degree of growth condition participate in the effect on the condition of streamflow in rivers more significant than the difference between broad-leaved and needle-leaved forests.

1.对天然阔叶林地(A)、人工阔叶林中龄林地(B)和山下幼林(C)的水分平衡各因子进行了观测。以富士为研究对象。对阔叶林地、采伐区和针叶林林地的土壤入渗能力和蓄水能力进行了多点对比测定。以天然阔叶林大部分转化为针叶林的径流流域为研究对象，对治理前后的径流进行了分析，综合上述研究结果，可以肯定天然阔叶林的森林水文功能均高于针叶林。采伐和生长状况对河流径流条件的影响比阔叶林和针叶林的差异更显着。