滇西北地区近10年森林质量变化分析与评价

采用2006年和2016年森林资源调查数据,从森林质量和生态状况2个方面对森林质量变化进行分析与评价。对乔木林面积蓄积、纯林和混交林单位面积、蓄积变化以及龄组结构、径级结构、郁闭度等级变化进行分析,结果表明,该区域森林质量逐年提升;对森林健康状况、天然林自然度、生态公益林群落结构变化进行分析,结果表明,林分状况得到改善,生态服务功能价值凸显。资源评价认为:滇西北森林资源富集,林分质量较高;植被区系类型复杂独特,科研价值高;区位关键重要,生态功能作用突出。

Analysis and Evaluation of Forest Quality Change in Northwest Yunnan in Recent 10 Years

Based on the investigation data of forest resources in 2006 and 2016,the changes of forest quality and ecological status were analyzed and evaluated.The analysis for the area and stock volume of arbor forest,unit area and stock volume change of pure forest and mixed forest,as well as the change of age group structure,diameter class structure and canopy density showed that the forest quality in this area was improved year by year.The analysis for the changes of forest health status,natural forest naturalness and community structure of ecological public welfare forest showed that the forest status was improved and the value of ecological service function was prominent.According to the resource evaluation,the forest resources was abundant with high quality of forest stands and the types of vegetation flora were complex and unique with high value of scientific research in Northwest Yunnan where the location was important and the ecological function was prominent.