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(01):21-23.
耕地数量生态位重心模型构建及其应用——以焦作市为例
- Title:
- On Construction and Application of Mathematical Model of Cultivated Land Quantity Niche Barycenter——A Case Study of Jiaozuo City
- Keywords:
- niche theory; cultivated land ecounit; cultivated land quantity niche barycenter; Jiaozuo City
- 分类号:
- X171;F301.24
- 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。
- 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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备注/Memo
收稿日期:2006-2-9;改回日期:。
基金项目:河南省科技攻关项目（0624220091）；河南理工大学自然科学（青年）基金重点资助项目（Z050501）
作者简介:牛海鹏（1974- ），男，河南南阳市人，硕士，主要从事土地生态方面的教学与研究。