【作者】 牛海鹏； 张合兵； 陈秋计；

【Author】 NIU Haipeng;ZHANG Hebing;CHEN Qiuji;School of Surveying and Land Informaton Engineering of HPU;

【机构】 河南理工大学测绘与国土信息工程学院；

【摘要】 文章以生态位理论为基础,提出了耕地生态元和耕地生态位的概念,分析了耕地生态位的特征及其演变规律。在此基础上,构建了用以量度耕地数量空间格局变化规律的耕地数量生态位重心模型,并运用该模型对焦作市1998-2004年期间耕地数量变化规律进行了分析。分析结果表明,该模型可以有效测度区域耕地数量整体变化特征及其年际变化程度大小,并可依据其变化规律探求区域耕地数量变化的驱动因素和驱动力。更多还原

【Abstract】 This paper proposes the concepts of cultivated land ecounit and cultivated land niche based on niche theory.The mathematical model of cultivated land quantity niche barycenter is constructed,which can measure the spacial change law in the quantity of cultivated land.Then this paper analyses the change features in the quantity of cultivated land in Jiaozuo city during 1998—2004 by the mathematical model of cultivated land quantity niche barycenter.The results are as follows:The model of cultivated land quantity niche barycenter may better measure the whole special change features and yearly change degree,by which the driving factors and driving forces can be hunt after.更多还原