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造林期间能否使立地达到最适合子造林技术要求,是决定造林成败的关键。本文就土壤水分、光和土壤通气条件等三个主要自然因子,对定植1年后的南方松苗木成活率与生长率的影响进行分析。影响苗木吸收水分的因子定植后的苗木对水分的需求量取决于当地不同季节对水分的需求和苗木冠幅面积的大小,因为不同的太阳辐射量导致每月的水分蒸腾量不一。据报道,火炬松的水分蒸散
Whether afforestation can make the site to achieve the most suitable technical requirements for afforestation is the key to determining the success of afforestation. In this paper, three major natural factors such as soil moisture, light and soil aeration conditions were analyzed for the effects of survival rate and growth rate of Southern Pine seedlings after one year planting. Factors Affecting Water Absorption by Seedlings The water requirements of seedlings after planting depend on the water requirements and seedling crown size of different seasons in the country, because different amounts of solar radiation lead to different amounts of water transpiration each month. It is reported that the water of loblolly pine evaporate