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中文摘要：
本文将土地经济生态位的理论和方法引入到景观生态学当中,为区域景观格局表征提供了新的方法.选择典型的生态脆弱区精河县为研究对象,以1990、1998、2011和2013年4期Landsat影像为数据源运用生态位态势理论计算研究区备土地利用类型的土地经济生态位,并结合景观生态学理论探讨土地经济生态位在县域景观格局分析中的应用.结果表明：研究期间精河县耕地、建设用地和草地的土地经济生态位与相应的景观斑块数、聚合度、破碎化指数和分维数具有较好的相关性;土地经济生态位的变化对县域景观格局具有驱动作用,可表征精河县经济发展方向.土地经济生态位与可直接获得经济效益的土地利用类型关系密切且与景观指数相结合能够很好地解释精河县景观格局的特征.
英文摘要：
The theory of land economic ecological niche was used to analyze the regional landscape pattern in this article,with an aim to provide a new method for the characterization and representation of landscape pattern.The Jinghe County region,which is ecologically fragile,was selected as an example for the study,and the Landsat images of 1990,1998,2011 and 2013 were selected as remote sensing data.The land economic ecological niche of land use types calculated by ecostateecorole theory,combined with landscape ecology theory,was discussed in application of land economic ecological niche in county landscape pattern analysis.The results showed that,during the study period,the correlations between land economic ecological niche of farmland,construction land,and grassland with the parameters,including landscape patch number（NP）,aggregated index（AI）,fragmented index（FN） and fractal dimension（FD）,were significant.Regional landscape was driven by the changes of land economic ecological niche,and the trend of economic development could be represented by land economic ecological niche change in Jinghe County.Land economic ecological niche was closely related with the land use types which could yield direct economic benefits,which could well explain the landscape pattern characteristics in Jinghe County when combined with the landscape indices.
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