【摘要】 为了在青海东部山区对人工林进行分类并构建低效人工林评价体系,文中采用系统调查和重点调查相结合的方法,在国内同类研究的基础上,结合本地区的实际情况对青海东部山区低效人工林进行了详查。结果表明:以低效林群落生长状况和立地条件为依据,将该地区低效人工林类型划分为:过密林、退化老化林、树种不适林、残次林和病虫危害林,并构建了一个由定性指标和定量指标组成的评价指标体系。通过对低效人工林类型划分及评价指标体系的构建,可促进该地区山地人工林的健康发展。更多还原

【Abstract】 In order to classify the artificial forest in the mountains of the eastern Qinghai and construct the evaluation system of inefficient artificial forest,based on the similar research in China and the actual situation in the area,a detailed survey of the low-efficiency artificial forest in the mountainous area of the eastern Qinghai was conducted. The investigation results show that the inefficient plantation types in this area can be divided into over-dense forest,degraded aging forest,inappropriate tree species forest,damaged forest and disease and insect endangered forest. An evaluation index system composed of qualitative index and quantitative index layer was constructed. The results can provide technical support for the healthy development of the mountainous plantation in this region by classifying the low-efficiency plantation types and constructing the evaluation index system.更多还原