1990年—2020年天津湿地景观格局时空变化研究  

Research on Temporal and Spatial Changes of Wetland Landscape Pattern in Tianjin from 1990 to 2020

作　　者：邹萍秀 曹磊[1] 李洪远[2] 杨冬冬[1] ZOU Pingxiu;CAO Lei;LI Hongyuan;YANG Dongdong(Architecture School of Tianjin University;Environmental Science and Engineering School of Nankai University)

机构地区：[1]天津大学建筑学院 [2]南开大学环境科学与工程学院

出　　处：《景观设计》2022年第3期30-35,共6页Landscape Design

基　　金：国家自然科学基金项目——海河流域断流河道恢复与再利用模式及方法研究(项目编号:52078326);国家留学基金项目(项目编号:201706250113)。

摘　　要：为揭示天津湿地整体景观格局动态,支持湿地资源保护利用与科学规划,本文以1990年—2020年间共6期Landsat遥感影像解译天津湿地景观空间分布格局,利用ArcGIS空间分析方法和Fragstats计算其景观格局指数,并分析了近30年天津湿地景观格局变化及主要驱动因素。结果表明:(1)1990年—2020年天津湿地(以人工湿地为主)面积共减少1166.1768km,其中,2002年—2008年湿地面积减少最为急剧;(2)近30年天津湿地景观格局指数的计算结果表明湿地景观破碎化程度在加剧,城市建设、养殖业和盐业等的发展导致湿地景观破碎度的变化,破坏了湿地景观斑块的完整性,湿地景观生态功能日益减弱;(3)驱动力分析显示,该时期的自然因素、人口因素和政策因素是天津湿地景观格局变化的主要驱动因素。In order to reveal the dynamics of the overall wetland landscape pattern in Tianjin and support the protection,utilization and scientific planning of wetland resources,this paper uses six Landsat remote sensing images from 1990 to 2020to interpret the distribution pattern of wetland landscape space in Tianjin.The landscape pattern index was calculated by using ArcGIS spatial analysis method and Fragstats.The changes of wetland landscape pattern and main driving factors in Tianjin in recent 30 years are also analyzed.The results show that:(1)From 1990 to 2020,the area of wetland(mainly artificial wetland)in Tianjin decreased by 1166.1768 km~2,among which the wetland area decreased most sharply from 2002to 2008;(2)The calculation results of wetland landscape pattern index in Tianjin in recent 30 years show that the degree of wetland landscape fragmentation is increasing.The development of urban construction,aquaculture and salt industry has led to the change of wetland landscape fragmentation,destroyed the integrity of wetland landscape patches,and the ecological function of wetland landscape is weakening day by day;(3)The driving force analysis shows that natural factor,population factor and political factor during this period are the main driving factors for the change of wetland landscape pattern in Tianjin.

关 键 词：天津湿地 景观格局 时空变化 驱动力 

分 类 号：TU9[建筑科学]