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一、对森林水源涵养效能的计量及评价林野厅1972年发表了关于日本森林公益效能计量评价的研究报告。该评价是通过对森林土壤进行降雨贮存量的测算来进行的。计算公式如下:
First, the measurement and evaluation of forest water conservation capacity Lin Ye Hall 1972 published a study on the measurement of forest public welfare effectiveness of Japan’s research report. This assessment is based on the measurement of rainfall storage in forest soils. Calculated as follows: