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本文通过设立间伐试验固定标准地,研究确定杉木林适宜的间伐强度,同时根据人工林林分结构状况,用偏度特征数这一数学性质从理论上检验间伐试验的结果是否符合客观实际,以增强试验的可靠性。在此基础上编制出杉木经营密度管理表,并用间伐试验固定标准地的观测资料验证该表的实用效果。
In this paper, through the establishment of a fixed standard of thinning test, the appropriate thinning strength of Chinese fir plantation was determined. According to the stand structure of artificial plantation, the mathematical property of skewness characteristics was used to test whether the result of thinning test was in line with the objective reality. Enhance the reliability of the test. On this basis, the fir management density management table was prepared, and the practical effect of the table was verified by observing the fixed standard ground with the thinning test.