选择2000年与2010年两期Landsat TM遥感影像,基于RS/GIS技术、景观生态学理论和转移矩阵数据模型,综合土地利用特征,从景观多样性、空间异质性等方面对研究区景观要素时空变化进行定量分析,探讨了浑太河流域在近10年内土地利用格局、土地利用转化及景观格局演替规律。研究表明,受经济发展与快速城镇化等因子的驱动,林地、耕地和沼泽湿地等生态地类面积减小,建筑用地面积显著增加,景观格局呈现斑块不断变小、离散化和景观破碎化的态势。研究结果可以为流域土地利用变化规律和土地利用综合治理方案提供数据依据。
Based on RS/GIS technology,landscape ecology theory and the transfer matrix data model,two historic RS images (2000 and 2010) of Huntai River Basin were selected for analyzing spatio-temporal change of landscape elements,landscape/lande-use pattern and conversions law by integrating land-use/cover features,landscape diversity and spatial heterogeneity.The results indicate that driven by fierce pace of economic development and urbanization,ecological land area like forest,farmland and watershed were reduced,on the contrary,construction was increased.Landscape patterns become a trend that landscape patches were smaller,more discrete and fragmented.The results can be used to pursue laws of watershed land use change and provide scientific basic data for proposing comprehensive land-use management.
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