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最近翻阅了几期一九七八年日本林野时报,其中不无有兴趣的报道。现综合其若干报道,揉为一文,以饷同好。日本的水源涵养林一九七七年为528万公顷,占全国森林总面积的21%,全国保安林面积的75%。自一九七三年起开始第三期保安林正备计划,一九七八年到一九八三年计划营造水源涵养林43万公顷,其中森林开发公团(相当于国营专业公司)共营造40万8千公顷。由此,可以看出水源涵养的重要性和在日本林业中所占
Recently, I read a few pages of the 1917 Japanese Forestry Times, of which there was no report of any interest. Now some of its reports, knead as a text, with the same rates. Japan’s water conservation forest was 5.28 million hectares in 1977, accounting for 21% of the total forest area in the country and 75% of the national security forest area. Since 1973, the third phase of the Pro-forge Protection Forest Program has been started. From 1978 to 1983, a total of 430,000 hectares of water conservation forest have been planned, of which Forest Development Corps (equivalent to State-owned Professional Corporations) has built 40 Eight thousand hectares. From this, we can see the importance of water conservation and its share in Japanese forestry