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为了搞清造林后,缓苗阶段苗木对土壤水分含量的要求,给今后造林选地、确定适宜的造林时间提供科学依据。我们于1982年春季,在北京门头沟区大村公社,作了不同土壤含水量对苗木成活影响的对比试验。
In order to find out the requirement of soil moisture content of seedlings after reforestation in reforestation stage, provide scientific basis for afforestation and afforestation in the future and determination of appropriate reforestation time. In the spring of 1982, we conducted a comparative experiment on the effects of different soil moisture on the survival of seedlings in the village commune of Mentougou in Beijing.