摘要
基于珠海市1988、1994、1999、2003、2008、2013、2018年的遥感影像,在RS和GIS技术支持下,运用监督分类、景观格局指数和地理探测器分析的方法,提取珠海市湿地信息并对其30年间景观格局的动态变化和驱动因子进行了分析。结果表明:(1)珠海市的湿地类型以河流与浅海/河口水域、水田和水产养殖湿地为主,近30年间,珠海市自然湿地面积明显减少,而人工湿地面积总体增多。(2)水田和水产养殖湿地的破碎化、复杂化程度较高,聚集度较大,随着城市化发展,水田、水产养殖和三角洲平原湿地景观的破碎化、复杂化程度呈现波动下降态势;而浅海/河口水域和水库坑塘景观的破碎化、复杂化程度较低,聚集度较小,随着城市化发展,其破碎化和复杂化程度逐渐增大。(3)人类活动是造成湿地景观格局变化的主要驱动因素,自然因子和社会因子之间存在双因子增强的关系。
Based on the remote sensing images of Zhuhai City in 1988,1994,1999,2003,2008,2013 and 2018,the wetland landscapes of Zhuhai city were extracted and the driving factors of the dynamic change in the past 30 years were analyzed with the support of RS and GIS technology by using the methods of supervised classification,landscape metrics and geographic detector analysis.The results show that:(1)the wetland landscapes in Zhuhai city are dominated by rivers and shallow sea/estuary waters,paddy fields and aquaculture areas.In the past 30 years,the area of natural wetlands has decreased significantly,while the area of constructed wetlands has increased overall.(2)The fragmentation and complexity of paddy fields and aquaculture landscapes are relatively high,and the degree of aggregation is greater.With the development of urbanization,the fragmentation and complexity of paddy fields,aquaculture and delta plain wetland landscapes show a trend of fluctuations and declines.On the other hand,the fragmentation and complexity of shallow sea/estuary waters and reservoirs and pond landscapes are relatively low,and the degree of aggregation is small.With the development of urbanization,the fragmentation and complexity are gradually increasing.(3)Human activities are the main driving factors for the change of wetland landscape pattern,and there is an enhanced relationship between natural factors and social factors.
作者
郭铭燕
侯茵
黄楚珩
张昇永
孙彩歌
GUO Mingyan;HOU Yin;HUANG Chuheng;ZHANG Shengyong;SUN Caige(School of Geography Science,South China Normal University,Guangzhou 510631,China;Key Laboratory for Urban Habitat Environmental Science and Technology,School of Urban Planning and Design,Peking University,Shenzhen 518055,China)
出处
《热带地貌》
2020年第2期1-7,共7页
Tropical Geomorphology
基金
教育部人文社会科学研究青年基金(19YJCZH142)
广东省基础与应用基础研究基金(2018A030313683)
关键词
湿地
景观格局
景观指数
地理探测器
珠海市
wetland
landscape pattern
landscape index
Geographical detector
Zhuhai City
作者简介
郭铭燕(1999-),女,广东汕头人,主要从事环境生态与土地利用变化研究。E-mail:mingyguo@m.scnu.edu.cn;通信作者:孙彩歌(1985-),女,河南许昌人,博士,特聘副研究员,主要从事环境遥感研究。E-mail:cgsun@m.scnu.edu.cn
