| 耕地数量生态位重心模型构建及其应用——以焦作市为例 |
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| 引用本文： | 牛海鹏.耕地数量生态位重心模型构建及其应用——以焦作市为例[J].水土保持研究,2007,14(1):21-23. |
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| 作者姓名： | 牛海鹏 |
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| 作者单位： | 河南理工大学测绘与国土信息工程学院,河南,焦作,454000 |
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| 基金项目： | 河南省科技攻关项目;河南理工大学自然科学(青年)基金重点项目 |
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| 摘 要： | 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。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。
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| 关 键 词： | 生态位 耕地生态元 耕地数量生态位重心 焦作市 |
| 文章编号： | 1005-3409（2007）01-0021-03 |
| 收稿时间： | 2006-02-09 |
| 修稿时间： | 2006年2月9日 |
On Construction and Application of Mathematical Model of Cultivated Land Quantity Niche Barycenter——A Case Study of Jiaozuo City |
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| NIU Hai-peng.On Construction and Application of Mathematical Model of Cultivated Land Quantity Niche Barycenter——A Case Study of Jiaozuo City[J].Research of Soil and Water Conservation,2007,14(1):21-23. |
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| Authors: | NIU Hai-peng |
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| Institution: | School of Surveying and Land Informaton Engineering of HPU, Jiaozuo, Henan 454000, China |
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| Abstract: | The concepts of cultivated land ecounit and cultivated land niche are proposed 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 the change features in the quantity of cultivated land in Jiaozuo City during 1998-2004 are analyzed 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 probed after. |
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| Keywords: | niche theory cultivated land ecounit cultivated land quantity niche barycenter Jiaozuo City |
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