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生态稳定性是森林生态系统健康的重要评估指标。红松人工栽植在辽宁东部得到广泛推广,研究人工红松种群动态是认识辽宁东部区域生态系统的基础,分析间伐强度对红松人工林的种群动态的影响对认识局部地区的生态稳定性有重要的作用。本文选取人工红松种群的5块强度间伐区,经过连续20年固定样地的观测数据分析得出:强度间伐后的红松人工种群生长规律大致为a_(81)>a_(66)>a_(71)>a_(44)>a_(38);在密度<1670时为下凹生长趋势;郁闭度对人工红松种群生长有促进作用,林下没有发现更新幼苗,说明强度间伐后红松人工林生态稳定性较差。
Ecological stability is an important indicator of the health of forest ecosystems. The artificial propagation of Korean pine is widely spread in eastern Liaoning. Studying the dynamics of artificial Korean pine is the basis for understanding the ecosystem in eastern Liaoning. Analyzing the effect of thinning intensity on the population dynamics of Korean pine plantation is important to understand the ecological stability of the local area Role. In this paper, we choose five thinning areas of artificial Korean pine population. After 20 consecutive years of fixed observation data, we can draw the conclusion that the growth of artificial population of Korean pine is about a_ (81)> a_ (66)> a_ (71)> a_ (44)> a_ (38) .During the process of density <1670, the growth trend was concave. The canopy density promoted the growth of Artificial Pinus koraiensis population. Pine plantation ecological stability is poor.