| 沈阳城市森林结构与生态效益 |
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| 引用本文： | 何兴元,胡志斌,金莹杉,陈玮.沈阳城市森林结构与生态效益[J].中国城市林业,2003,1(3):25-32. |
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| 作者姓名： | 何兴元 胡志斌 金莹杉 陈玮 |
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| 作者单位： | 中国科学院沈阳应用生态研究所,沈阳,110016 |
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| 基金项目： | "百人计划"城市森林生态学(C99AD-BR010502)、973课题"农林复合景现的生态耦合关系及水土资源优化配置"(2002CB111506)资助 |
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| 摘 要： | 用样方调查方法对沈阳市建成区163.5km2范围的树木进行实地调查,并建立了基于Arc View 3.2以及CITYgreen模型的城市森林信息管理系统。应用该系统分析了沈阳市土地利用及树木分布的格局、树种柏成、树木密度、树高等级分布、胸径等级分布、健康状况等指标。
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The structure of urban forest in Shenyang city and their ecological benefits |
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| HE Xing-yuan HU Zhi-bin JIN Ying-shan CHEN wei.The structure of urban forest in Shenyang city and their ecological benefits[J].Journal of Chinese Urban Forestry,2003,1(3):25-32. |
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| Authors: | HE Xing-yuan HU Zhi-bin JIN Ying-shan CHEN wei |
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| Abstract: | Sampling plots were investigated in Shenyang, covering 163.5km2 of the urban area. Results were used as input for the Urban Forest Management Information System (UFMIS), which was developed based on the model of CITYgreen. With this system, the land use and forest structure of Shenyang City were analyzed, using parameters like tree species, tree density, tree height grade distribution, tree DBH (diameter at breast height) grade distribution, and health condition etc. It was found that there were 19,944 trees in the study area belonging to 136 species. The forest coverage was 9.765%. The 25 dominant species accounted for 84.78% of the total number of trees. Trees with DBH <0.25m and DBH>0.5m accounted for 82. 8% of the total. Young, middle-aged and old trees accounted 27%, 58% and 15% of the total, respectively. The healthy status of 84% of the trees was above the middle level. Therefore it can be concluded that the urban forest of Shenyang is at a stable condition. According to the statistical results from UFMIS, based on CITYgreen model, the ecological value of the urban forest in Shenyang is as high as 265,269. 55USD. |
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| Keywords: | Urban Forest Ecological benefits Shenyang |
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