成都市城市景观格局时空演变特征及生态效应驱动研究  

Study on Spatio-temporal Evolution Characteristics and Ecological Effect Driving of Urban Landscape Pattern in Chengdu

作　　者：黄琴 何江林[1] 郭海铭 余水 孟常来 王鑫 HUANG Qin;HE Jianglin;GUO Haiming;YU Shui;Meng Changlai;WANG Xin(Sichuan Academy of Forestry,Chengdu 610081,China;Chengdu Zhongcheng Kechuang Environmental Protection Technology limited company,Chengdu 610081,China;Linshui Wanfengshan state owned Forest Farm,Guangan 638500,China)

机构地区：[1]四川省林业科学研究院,四川成都610081 [2]成都中成科创环保科技有限公司,四川成都610081 [3]邻水县万峰山国有林场,四川广安638500

出　　处：《四川林业科技》2022年第4期31-37,共7页Journal of Sichuan Forestry Science and Technology

摘　　要：景观变化是人类社会经济活动与地域环境间相互干扰、相互作用的复杂动态过程,分析和评价成都市景观格局的时空特征,景观格局变化对生态环境质量的影响,以期促进人与自然和谐,维护城市生态系统稳定性、国土空间格局优化和公园城市建设提供科学依据。基于2000—2020年成都市历史遥感数据,运用遥感、GIS技术和Fragstats软件,分析研究区土地利用/覆被类型,定量研究成都市景观格局变化及其生态效应。结果表明:(1)20年间成都市土地利用结构发生明显变化,由农业用地占主导的土地利用格局逐渐转变为耕地、林地和人造地表占优势的局面,约占研究区总面积的94.71%,成为成都市的主导土地利用/地表覆被类型。20年间增速最快的是人造地表,单一动态度达44.58%,其次为水体和林地;增速最慢的为草地和湿地。(2)20年间成都市土地利用空间变化面积达237303.17 hm^(2),占研究区总面积的16.56%,表现出耕地、草地和林地的大量转出和人造地表、林地大量转入的特征。(3)景观类型以耕地为主,人造地表景观类型是20年间变化最大的景观类型,形成了较大的集聚斑块且逐年扩大。整体景观格局受人为干扰程度逐年加剧,景观多样性、异质性提升,优势景观减弱,景观组分更趋于均衡发展。随着经济产业结构的转变,生态环保意识的增强,公园城市的建设,在较短的时间尺度上人为因素对成都市景观格局的影响力逐渐增强。Landscape change is a complex dynamic process of mutual interference and interaction between human socio-economic activities and regional environment.With the development of economy and society and the continuous enhancement of human activities,the evolution of natural ecological environment is becoming more and more intense.This study analyzes and evaluates the temporal and spatial characteristics of landscape pattern in Chengdu and the impact of landscape pattern change on ecological environment quality,in order to promote the harmony between man and nature,maintain the stability of urban ecosystem,optimize land spatial pattern and provide scientific basis for park city construction.Based on the historical remote sensing data of Chengdu from 2000 to 2020,using remote sensing,GIS technology and FRAGSTATS software,this paper systematically analyzes the land use/cover types in the study area,and quantitatively studies the changes of landscape pattern and its ecological effects in Chengdu.(1)In the past20 years,the land use structure of Chengdu has changed significantly.The land use pattern dominated by agricultural land has gradually changed to the situation dominated by cultivated land,forest land and man-made surface,accounting for about 94.71%of the total area of the study area,becoming the leading land use/surface cover type of Chengdu.And,man-made surface has the fastest growth rate,with a single dynamic degree of 44.58%,followed by water and forest land;The slowest growth rate is grassland and wetland.(2)In the past 20 years,the spatial change area of land use in Chengdu has reached 237303.17hm^(2),accounting for 16.56%of the total area of the study area,showing the characteristics of a large number of transfer out of cultivated land,grassland and forest land and a large number of transfer in of man-made surface and forest land.(3)The landscape type of the study area is mainly cultivated land,and the man-made surface landscape type is the landscape type with the greatest change in the past 20 years,forming a

关 键 词：公园城市 景观格局 时空演变 土地利用/覆被 遥感 

分 类 号：TU984.115[建筑科学—城市规划与设计]