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中国农学通报

中国农学通报 ›› 2006, Vol. 22 ›› Issue (2): 257-257.

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东港市湿地的景观格局变化及驱动力分析

董婷婷,王秋兵   

  • 出版日期:2006-02-05 发布日期:2006-02-05

Landscape Pattern Changes of Wetlands in Donggang City and its Driving Force

Dong Tingting, Wang Qiubing   

  • Online:2006-02-05 Published:2006-02-05

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摘要： 在遥感与GIS的支持下，以东港市1989年TM影像和1999年ETM影像为主要数据源，通过选取和计算景观指数分析了东港市10年来的湿地的景观格局变化。分析结果表明：10年间人工湿地面积普遍增加，天然湿地面积普遍减少，平均分形维数大部分降低，湿地景观破碎度增加，多样性指数下降，优势度指数增加，均匀度指数下降,聚集度指数增加。湿地景观格局指数的变化，反映了城镇规模的扩大，水稻的大面积种植，养殖业的大力发展等人为活动对景观格局的深刻影响，人为活动已成为东港市湿地景观格局变化的主要驱动因子。

Abstract: Base on the technology of RS and GIS the TM image in 1989 and ETM image in 1999 were used to study the pattern change in Donggang city during the past ten years. The study result shows that the area of artificial wetland generally increases and the area of natural wetland generally reduces. Average fractal dimension index generally reduces. Landscape fragmentation index increases. Landscape diversity index and predominance index increases. Evenness index decreases. Landscape contagion index increases. The change of wetlands landscape pattern was the result of expanding town, Large area planting of the rice and large development of the feeding. Human activity was the main driving factor for landscape change.