山地次生林退化生态系统诊断技术初探

A Preliminary Study on Diagnosis Technology of the Degraded Ecosystem of Hilly Secondary Forest

以黑龙江省林业科学院江山娇实验林场天然次生林生态系统为研究对象,以恢复生态学为研究理论基础,叙述了退化生态系统的概念、退化生态系统诊断技术研究进展以及江山娇实验林场天然次生林退化生态系统特征。提出了天然次生林生态系统退化程度诊断技术方法,并结合样地实测数据,采用常用的专家咨询法进行权重赋值,计算样地退化指数,依据退化指数分析了样地的退化程度。

The article discussed the concept of degraded ecosystem, research development of diagnosis technology about degradation ecosystem and the characters of the degraded ecosystem of natural secondary forest with the research object of the natural secondary forest ecosystem in Jiangshanjiao forestry center of Heilongjiang Academy of Forestry and on the theory foundation of restoration ecology. We provided the diagnosis technique methods of ecosystem degradation degree of natural secondary forest. Integrating the sample areas data and weighting of the data by typical expert consulting, the degradation index of sample areas was calculated, And the degradation degree was analyzed according to the degradation index. The diagnosis technique methods of degraded ecosystem of natural secondary forest provided the scientific reference for ecological restoration and regeneration in the large secondary forest in the east of Heilongjiang Province.