内蒙古中部山地松人工林健康评价研究——以蛮汉山油松人工林为例.pdf

摘 要 内蒙古中部地区属干早半干旱地区，森林的健康问题是生态环境问题的核心， 油松是内蒙古中部地区主要乡土、造林和水土保持树种，因此处理好油松林的健康 问题，是该区生态环境建设的关键。本文基于前人研究森林健康评价基础上，以蛮 汉山油松人工林为研究对象对内蒙古中部油松人工林健康状况进行评价，旨在为内 蒙古中部地区的环境建设以及该地区森林生态系统健康经营提供科学依据。 以蛮汉山林场为例，依据定性与定量结合的方法、正态分析法、等距划分法、 频数分析法、森林资源规划调查主要技术、均方差综合分析法以及模糊综合评价法， 对内蒙古中部地区森林健康状况进行评价。 本文得到以下结论： （1）以蛮汉山油松人工林16块标准地调查数据为基础，运用定性与定量结合的方 法确定评价指标为11个，包括胸径、树高、冠幅、腐殖质厚度、枯落物厚度、草本盖 度、蓄积量、单位面积生长量、更新、病虫害程度和火险等级。 （2 ）采用均方差分析法得出该区各评价指标权重：单位面积生长量、蓄积量、树 高、冠幅、天然更新、枯落物厚度与腐殖质厚度权重依次递减；病虫害程度、火险等 级、草本盖度与胸径的权重均偏小。 （3 ）评价指标对Ⅰ、Ⅱ、Ⅲ、Ⅳ级的隶属度为：A=(0.079 ，0.531，0.344，0.046) 且依据综合评价模型得出：蛮汉山油松人工林健康等级是 2.357 ，介于亚健康与中 健康两个等级之间，偏向于亚健康。 关键词：油松人工林；健康评价；内蒙古中部 Forest Health Assessment of Pinus Tabulaeformis Plantation in the Mountainous Region in Central Inner Mongolia: a Case of Pinus Tabulaeformis Plantation of Manhan Mountain Abstract The mountainous region in central Inner Mongolia is an arid and semi-arid area. The forest health issue is a key problem of ecology and environment. Pinus tabulaeformis is the main native tree species, afforestation tree species and soil conservation tree species in the mountainous region in central Inner Mongolia. Thus, the forest health problem of Pinus tabulaeformis is a key issue in ecological environment construction. Based on the previous studies of the forest health assessment, the research takes Pinus tabulaeformis plantation of ManHan mountain as the research object in order to evaluate health status of Pinus tabulaeformis plantation and in order to provide a scientific basis for the environment construction and forest ecosystem health management in the mountainous region in central Inner Mongolia. Based on the combination of qualitative and quantitative analysis method, the normal analysis method, the isometric cut method, the frequ