中国林学（英文版）2007，Vol.9Issue(2)：157-163,7.
Evaluation of the forest ecosystem health in Beijing area
Evaluation of the forest ecosystem health in Beijing area
摘要
Abstract
The evaluation of ecosystem health has become one of the main research topics of ecosystem science, thus more and more assessment methods and frameworks have been put forward in recent years. However, the attention people pay to ecosystem health is actually more about what the social functions the ecosystem affords, which depend on the integrity and maintenance of the ecosystem structure and function, and the intensity of disturbance from outside. Accordingly, this research commenced from three main aspects,selected the evaluation indices, and then established the Evaluation Index System of Beijing Forest Ecosystem Health (EIS-BFEH).In the EIS-BFEH, each of the three foundations contained an easily-operated and standard sub-index system, which compounded the specific natural and social conditions of Beijing and was concrete enough to measure and evaluate. Then with the method of the Analytical Hierarchy Process (AHP), the comprehensive index (CI) could be obtained, which represented the health of the forest ecosystem. As a case study, the forest ecosystems in the Badaling area were sampled, evaluated, compared and ranked by use of the EIS-BFEH. The result show that the health of natural forests is much better than that of plantations in the Badaling forest center: the average comprehensive index of the former is 7.9, while the latter is only 6.6. From the results, it could also be found that there are nine units in the healthy state, two units in the subhealthy state, and only one unit of Robinia pseudoacacia in the morbid state.关键词
Beijing area/forest ecosystem health/evaluation/Badaling Forest CenterKey words
Beijing area/forest ecosystem health/evaluation/Badaling Forest Center分类
林学引用本文复制引用
Ma Li,Han Hai-rong,Ma Qin-yan,Liu Hong-wen,Xia Wei-wei,Cheng Xiao-qin..Evaluation of the forest ecosystem health in Beijing area[J].中国林学（英文版）,2007,9(2):157-163,7.基金项目
This study was supported by the Foundation for the Key Laboratory of the Ministry of Education (Grant No. GJSYS100220402). （Grant No. GJSYS100220402）
