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在东北林业大学帽儿山试验林场尖砬沟森林定位研究站(12730?12734扙, 4521?4525扤), 建立了水曲柳人工林。在对不同立地条件下10年生水曲柳人工林生长指标进行标准地调查,分析结果表明:影响水曲柳人工林生长的主要立地因子依次为:土壤湿度、坡度和坡位;水曲柳最适生长的地点为山地中上腹,而不适于坡度平缓的山地中下腹。认为土壤湿度和因地形原因引起的逆温是限制水曲柳人工林生长的主要原因。图3表6参6。
A man-made plant of Fraxinus mandshurica was established at Jiangyougou Forest Research Station of Maoershan Experimental Forest Farm of Northeast Forestry University (12730-12734扙, 4521 ?4525扤). The results showed that the main site factors influencing the growth of Fraxinus mandshurica plantations were: soil moisture, slope and slope position; the most significant increase of Fraxinus mandshurica Suitable for growing in the mountains in the upper abdomen, but not suitable for gentle slopes in the lower abdomen. It is considered that soil moisture and temperature inversion due to topographical reasons are the main reasons that restrict the growth of Fraxinus mandshurica plantation. Figure 3 Table 6 参 6.