| 基于RS与GIS的乐清湾湿地景观格局变化分析 |
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| 引用本文： | 宋国利,李玉宝,付春雷,鄂勇.基于RS与GIS的乐清湾湿地景观格局变化分析[J].东北林业大学学报,2010,38(12). |
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| 作者姓名： | 宋国利 李玉宝 付春雷 鄂勇 |
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| 作者单位： | 温州大学,温州,325035;东北农业大学 |
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| 基金项目： | 温州市科技攻关项目(S2004B002) |
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| 摘 要： | 利用1993年和2003年二期LandsatTM影像为信息源,在RS和G IS技术支持下,对乐清湾湿地景观格局变化进行研究。选取斑块密度、斑块分维数、景观破碎度、景观多样性、优势度和均匀度等指标,对乐清湾湿地景观格局的变化进行定量分析,并利用生态效应指数模型研究各类景观的转化情况。研究结果表明,1993—2003年间,该研究区的湿地景观格局在人类活动的影响下发生了较大变化,滩涂和耕作用地景观面积减小,建设用地景观面积大幅增加,湿地景观向非湿地景观转化趋势明显;湿地景观整体趋于破碎化,景观连通性下降;优势景观的优势地位下降,景观的均匀度上升。近10 a来乐清湾湿地景观类型的转化导致该地区总体生态环境质量有所恶化,乐清湾湿地是急需采取保护性措施的重点区域,该研究结果为区域土地利用和生态环境保护提供科学的依据。
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| 关 键 词： | 乐清湾 湿地景观 景观指数 生态效应指数模型 RS GIS |
Landscape Pattern Change in Yueqing Bay Wetland Based on RS and GIS |
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| Song Guoli,Li Yubao,Fu Chunlei,E Yong.Landscape Pattern Change in Yueqing Bay Wetland Based on RS and GIS[J].Journal of Northeast Forestry University,2010,38(12). |
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| Authors: | Song Guoli Li Yubao Fu Chunlei E Yong |
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| Institution: | Song Guoli,Li Yubao(School of Life , Environment Wenzhou University,Wenzhou 325035,P.R.China),Fu Chunlei,E Yong(Northeast Agricultural University) |
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| Abstract: | A study was conducted to explore the landscape pattern change in Yueqing Bay by using Landsat TM data in 1993 and Landsat ETM+data in 2003 based on RS and GIS technology.Patch density,patch fractal dimension,landscape fragmentation,landscape diversity,dominance and evenness indexes were used to analyse the landscape pattern changes of the wetland in Yueqing Bay.Landscape changes were analysed by ecological effect models.Results showed that the landscape pattern changed dramatically during 1993-2003 as a res... |
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| Keywords: | Yueqing bay Wetland landscapes Landscape indexes Ecological effect models Remote sensing Geographic information system |
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