城市森林结构的量化研究——以沈阳树木园森林群落为例

应用生态学报 ›› 2003, Vol. ›› Issue (12): 2090-2094.

城市森林结构的量化研究——以沈阳树木园森林群落为例

朱文泉^1,2, 何兴元¹, 陈玮^1,2, 陈云浩², 张粤¹, 宁祝华³

1. 中国科学院沈阳应用生态研究所树木园, 沈阳 110016;
2. 北京师范大学资源科学研究所, 资源信息科学与工程研究中心, 北京 100875;
3. 美国南方大学城市森林系, 巴吞鲁日, LA70813

收稿日期:2003-05-27 修回日期:2003-09-15
通讯作者: 何兴元
基金资助:
国家自然科学基金项目(40201036);中国科学院“十五”预研项目(K070KYZX010505);中国科学院引进国外杰出人才资助项目(KOTCE03971003)

Quantitative analysis of urban forest structure:A case study on Shenyang arboretum.

ZHU Wenquan^1,2, HE Xingyuan¹, CHEN Wei^1,2, CHEN Yunhao², ZHANG Yue¹, NING Zhuhua ³

1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
2. Institute of Resources Sciences, Beijing Normal University, Geoinformatics Center, Beijing Normal University, Beijing 100875, China;
3. Southern University and A and M College, Baton Rouge LA70813, USA

Received:2003-05-27 Revised:2003-09-15

摘要/Abstract

摘要： 采用遥感图像判读和野外调查相结合的方法,定量分析了沈阳树木园植物群落的物种结构及空间格局.结果表明,沈阳树木园植被的生长状况良好;物种丰富,其中黄蘖(Phellodendron amurense)、刺槐(Robinia pseudoacacia)、榆树(Ulmus pumila)在树木株数和相对优势度上均占优势,为群落的主林木;植被在高度和胸径上的分布均表现为具有向上发展的潜力,整个植被群落正处于一个快速的生长期,属于发挥生态效益的最佳时期.沈阳树木园的树种多度与基于叶面积的相对优势度之间无明显关联,数量上占优势的树种,其相对优势度不一定很高.沈阳树木园植被树木株数与不同树高等级间的分布关系表现为上凸的曲线,随着树木高度级的增加,树木株数开始分布比较平稳,当高度超过12m后,树木株数明显减少,曲线急骤下降.树木株数分布与不同胸径等级间的关系也呈现类似的情况.

关键词: 城市森林, 结构, 绿量, 人为干扰

Abstract: The spatial features and attribute data of urban forests in Shenyang arboretum were acquired by using aerial photographs and field investigation. After systemic and quantitative analysis of the species composition and spatial distribution pattern of urban forest community based on geographic information system (GIS),the following results were achieved: 1) the vegetation in the arboretum was rich and in a good condition. Phellodendron amurense,Robinia pseudoacacia ,and Ulmus pumila were the main species according to their abundant individuals and relative dominance. The spatial distribution pattern of this vegetation indicated that it was in a growing level and in the best state for ecological benefits; 2) the tree species relative dominance based on vegetation quantity had no distinct relationship with the species abundance,and the species having abundant individuals might have a low relative dominance; and 3) the curve displayed in the relationship diagram between tree individuals and tree height showed ascending and protruding. With the increment of tree height class,the individuals were unchanged nearly at the beginning,but when the height was more than12 m,the individuals reduced distinctly,and the curve displayed a quickly declined trend. The relationship between tree individuals and tree diameter at the breast height (DBH) showed the same result.

Key words: Urban forests, Structure, Vegetation quantity, Human disturbance

中图分类号:

S731.2

朱文泉, 何兴元, 陈玮, 陈云浩, 张粤, 宁祝华. 城市森林结构的量化研究——以沈阳树木园森林群落为例[J]. 应用生态学报, 2003, (12): 2090-2094.

ZHU Wenquan, HE Xingyuan, CHEN Wei, CHEN Yunhao, ZHANG Yue, NING Zhuhua . Quantitative analysis of urban forest structure:A case study on Shenyang arboretum.[J]. Chinese Journal of Applied Ecology, 2003, (12): 2090-2094.

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