集流面积

黄土高原主要造林树种集流面积的确定

Determination of the Areas of Gathering Water for Main Tree Species on the Loess Plateau

根据土壤水分对林木的有效性，提出了人工林土壤水分的补偿方法及各树种的集流面积。

The compensation method of soil water and the areas of gathering water were put forward based on the soil water effectiveness .

不同集流场地，水分在水平结构和垂直结构上的变化均有显著差异，影响强度和范围随集流面积的增加而增强。

The distribution of soil-water in level structure and plumb structure has obvious difference among the different areas , the intensity and rang of soil-water increase with the increasing of collecting area .

雨水集流实验研究表明：（1）改进雨水集流的基本途径是改变表层土壤结构和植被盖度，增大土质集流区面积和采用人工处理材料的集水面。

The results of the experiments are listed as follows : ( 1 ) More water would be collected from catchments by means of the change of surface soil structure and the management of vegetation cover , or by increase of natural catchment area and use artificial catchments .