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在森林经营中预防和控制活立木腐朽可以减少大量损失,研究立地条件对活立木腐朽的影响对于腐朽防治具有重要意义.2013年10月,本文使用阻抗仪在小兴安岭带岭林区分别选取30株腐朽和10株健康的成过熟龄红松活立木作为样木,用树木生长锥在样木靠近根部的树干上取2段木芯,测定腐朽木芯失重率,同时对样木根部土壤含水率、所处坡度/坡向/坡位和高程进行测量,对边心材含水率等条件与样木腐朽之间的关系进行相关性和方差分析.结果表明:边材和心材含水率与红松活立木腐朽程度呈显著负相关,土壤含水率与腐朽程度呈显著正相关.样木边心材含水率和立地土壤含水率在腐朽和健康样木中差异显著.在坡面因素中,只有坡位对腐朽程度影响显著,坡中部的腐朽程度显著大于坡上部,这主要与坡中部的土壤含水率显著高于坡上部有关.高程与腐朽程度之间没有显著的相关关系.
In the forest management to prevent and control the decay of living wood can reduce a lot of losses, the study of site conditions on the decay of living wood for decay prevention and control is of great significance.In October 2013, the impedance analyzer in Xiaoxing’anling Bailing forest were selected 30 Decayed and 10 healthy over mature age korean living standing wood as the sample wood, with the tree growth cone in the sample near the root of the tree trunk taken two sections of wood, determination of rotten core weight loss rate, The slope / slope / elevation and elevation were measured, and the relationship between the moisture content of the core material and decay of the wood was analyzed by correlation analysis and variance analysis.The results showed that the correlation between the moisture content of sapwood and heartwood and the There was a significant negative correlation between the degree of decay and the degree of decay.The soil water content was positively correlated with the degree of decay.The water content of the heartwood and the soil moisture of the site were significantly different between decayed and healthy sample trees.On the slope, The degree of decay is significant, and the decay degree in the middle part of the slope is significantly greater than that in the upper part of the slope, which is mainly related to the soil moisture content in the middle part of the slope is significantly higher than that in the upper part of the slope. Correlation.