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林业科学 ›› 2011, Vol. 47 ›› Issue (6): 143-151.doi: 10.11707/j.1001-7488.20110621

• 问题讨论 • 上一篇    下一篇

北京山区森林健康的多尺度评价

张国祯1, 甘敬1, 朱建刚2   

  1. 1. 北京市园林绿化局 北京100029;2. 中国科学院生态环境研究中心 北京100085
  • 收稿日期:2009-05-05 修回日期:2011-02-28 出版日期:2011-06-25 发布日期:2011-06-25
  • 通讯作者: 甘敬

Multi-Scale Health Assessment of Forests in Mountainous Regions of Beijing

Zhang Guozhen1, Gan Jing1, Zhu Jiangang2   

  1. 1. Beijing Municipal Bureau of Forestry and Landscape Beijing 100029;2. Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences Beijing 100085
  • Received:2009-05-05 Revised:2011-02-28 Online:2011-06-25 Published:2011-06-25

摘要:

北京山区森林是北京市重要的绿色屏障,其健康状况事关首都生态安全等重大问题。基于森林资源二类调查数据和样地调查数据等,利用多层模糊综合评价法,从林分、景观和区域多尺度对北京山区森林健康状况进行耦合评价。结果表明: 在区域尺度上,北京山区森林整体处于亚健康状态; 在景观尺度上,18类森林景观要素类型中,健康的森林4类,亚健康的12类,不健康的2类; 在林分尺度上,30 164个森林经营小班中,亚健康的最多,数量为12 226个,面积比例42.21%; 不健康和疾病的数量为9 534个,面积比例27.57%。因此,北京山区森林急需进行健康经营和管理以提高健康等级。

关键词: 森林健康, 模糊综合评价, 多尺度, 北京山区

Abstract:

Forests in mountainous regions of Beijing serve as a green protection belt which ensures the ecological safety of the capital if it is in a healthy condition. Based on data of a forest resource inventory and plot investigation, the health status of forests in mountainous regions of Beijing was assessed with multi-scale including forest stands, landscape and regional scale. Multi-level fuzzy synthetic evaluation method was involved in the assessment. Results showed that, on the regional scale, the whole forests in mountainous regions of Beijing were basically sub-healthy. On the landscape scale, 4 kinds were robust, 12 kinds were sub-healthy and 2 kinds were unhealthy among the total 18 forest landscape element types. On the forest stand scale, among total 30 164 plots, 12 226 ones were sub-healthy and their area accounted for 42.21% of the total mountainous regions of Beijing. In addition, 9 534 plots were either unhealthy or in disease, and their area accounted for 27.57% of the total area. Therefore, above results suggest that it is urgent and necessary to carry on forest health management to improve forest health grade in mountainous regions of Beijing.

Key words: forest health, fuzzy synthetically evaluation, multi-scale, mountainous area of Beijing

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