城市化强度对城市森林景观格局的影响  

Impact of Urbanization Intensity on Urban Forest Spatial Pattern

作　　者：王亚男 周正广 朱文浩 李彩珠 杨金明 WANG Yanan;ZHOU Zhengguang;ZHU Wenhao;LI Caizhu;YANG Jinming(School of Landscape Architecture and Forestry,Qingdao Agricultural University,Qingdao Shandong 266109;Forestry Development Center of Qingdao Chengyang District,Qingdao Shandong266109;Qingdao Gao Cheng Wei Lin Forestry Planning Co.,Ltd.,Qingdao Shandong266109)

机构地区：[1]青岛农业大学园林与林学院,山东青岛266109 [2]青岛市城阳区林业发展中心,山东青岛266109 [3]青岛高城维林林业规划有限公司,山东青岛266109

出　　处：《山东林业科技》2021年第5期29-35,48,共8页Journal of Shandong Forestry Science and Technology

基　　金：青岛农业大学大学生创新训练项目“POI对城市森林结构和景观格局的影响”;“城市化强度对青岛市城市森林结构和景观格局空间异质性的影响”。

摘　　要：城市森林是城市生态系统的重要组成部分,其空间格局影响城市生态系统服务和功能的发挥。因此,研究城市化背景下城市森林的空间分布格局对提升城市森林的生态效益具有重要的指导作用。本文在对2018年至2019年之间青岛市主城区土地利用进行分类的基础上,计算公里网格内城市森林斑块的景观格局指数以及城市化强度,然后利用相关性分析和地理加权回归分析法研究城市化强度与城市森林空间格局之间的关系。结果表明:1)青岛市主城区森林斑块空间分布不均匀;2)城市化强度与城市森林破碎化指数之间具有显著相关性,城市不透水面积每增加10%,城市森林面积将减少约5.6 hm^(2),最大斑块指数将下降约7.9,而每平方公里森林斑块数将增加约19个,说明城市化进程将导致城市森林破碎化;3)地理加权回归分析表明,城市化强度对城市森林景观格局指数的影响具有显著的空间异质性。研究结果将对指导城市森林建设,更好的发挥其生态效益提供一定的借鉴作用。Urban forest is an important part of urban ecosystem,and its spatial pattern affects the service function of urban ecosystem.Therefore,studying the spatial distribution pattern of urban forest under the background of urbanization has an important guiding role in improving the ecological benefits of urban forest.Based on the classification of land use in the main urban area of Qingdao from 2018 to 2019,the landscape pattern index and urbanization intensity of urban forest patches in the kilometer grid were calculated.Then the relationship between urbanization intensity and urban forest spatial pattern was studied by using correlation analysis and geographically weighted regression analysis.The results showed that:1)the spatial distribution of urban forest patches is relatively uneven;2)There is a significant correlation between urbanization intensity and urban forest fragmentation index.For every 10%increase in impervious area,the urban forest area will decrease by about 5.6 ha,the maximum patch index will decrease by about 7.9,and the number of forest patches per square kilometer will increase by about 19,indicating that the process of urbanization will lead to urban forest fragmentation;3)Geographically weighted regression analysis showed that the impact of urbanization intensity on urban forest landscape pattern index had significant spatial heterogeneity.The research results will provide some reference for guiding the construction of urban forest and giving better play to its ecological benefits.

关 键 词：城市生态系统 土地利用分类 不透水面 地理加权回归 网格 

分 类 号：S731.2[农业科学—林学]