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1976年以来江苏盐城滨海湿地景观变化及驱动力分析
引用本文:左平,李云,赵书河,周鑫,滕厚锋,陈浩.1976年以来江苏盐城滨海湿地景观变化及驱动力分析[J].海洋学报,2012,34(1):101-108.
作者姓名:左平  李云  赵书河  周鑫  滕厚锋  陈浩
作者单位:1.南京大学 地理与海洋科学学院, 江苏 南京 210093;南京大学 海岸与海岛开发教育部重点实验室, 江苏 南京 210093
基金项目:国家自然科学基金(40606025);国家九○八专项(908-ZC-Ⅱ-03);国家公益项目(农业)(200903001-1)。
摘    要:基于1976年的地形测绘数据和1987,1992,1997,2002,2007年的遥感数据提取土地利用和景观的时空变化,进而分析近40 a来江苏盐城滨海湿地的景观变化和驱动力。研究表明:自1976年以来盐城滨海湿地中的自然湿地总面积呈逐渐减少的趋势;景观的主要变化特征表现为以獐茅、碱蓬群落为代表的自然湿地的大面积减少,和以鱼塘、农业用地为代表的人工湿地的大面积增加。景观指标分析表明盐城滨海湿地景观总体上有破碎化程度加剧的趋势。结果分析认为,这种变化既受到政策导向型的各类滩涂开发等人为干扰活动的影响,也受到滨海湿地自然演化和潮滩蚀淤等自然因素的影响。尽快改变盐城滨海湿地现有的开发利用模式,使各种人类活动对整个生态系统的压力减到最小,以获得经济、社会、生态效益的统一。

关 键 词:土地利用/变化    景观变化    滨海湿地    江苏盐城
收稿时间:2010/11/1 0:00:00
修稿时间:2011/4/27 0:00:00

Landscape changes of Jiangsu Yancheng coastal wetlands and their driving forces since 1976
ZUO Ping,LI Yun,ZHAO Shuhe,ZHOU Xin,TENG Houfeng and CHEN Hao.Landscape changes of Jiangsu Yancheng coastal wetlands and their driving forces since 1976[J].Acta Oceanologica Sinica (in Chinese),2012,34(1):101-108.
Authors:ZUO Ping  LI Yun  ZHAO Shuhe  ZHOU Xin  TENG Houfeng and CHEN Hao
Affiliation:1.School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China;Ministry of Education Key Laboratory for Coast and Island Development, Nanjing University, Nanjing 210093, China2.School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China3.Yancheng Biosphere Reserve, Yancheng, Jiangsu Province, 224333, China
Abstract:Temporal and spatial variations of landscape changes and their driving forces are analyzed in Yancheng coastal wetlands based on topography data in 1976 and remote sensing data in 1987, 1992, 1997, 2002 and 2007.The results show that the area of Yancheng natural coastal wetlands decreased gradually with the massive loss of Aeluropus sinensis, Suaeda glauca communities and great increase of fish ponds and agricultural lands.A landscape index shows Yancheng coastal wetlands are rapidly deteriorating and experiencing landscape fragmentation.Their driving forces are pushed by both human disturbance and physical conditions with policy-oriented activities of all kinds of wetlands development, alien species introduction and coastal erosion/accretion conditions.The existing development model on Yancheng coastal wetlands might be substituted by wise use and scientific management as soon as possible for the aim of biodiversity conservation and ecosystem health.
Keywords:land use/change  landscape changes  coastal wetlands  Yancheng  Jiangsu Province
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