| 基于GIS的江苏省溧阳市耕地地力评价研究 |
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| 引用本文： | 丁文斌,朱中华,陶吉平,芮文其,蒋建华.基于GIS的江苏省溧阳市耕地地力评价研究[J].农学学报,2011(4). |
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| 作者姓名： | 丁文斌 朱中华 陶吉平 芮文其 蒋建华 |
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| 作者单位： | 江苏省溧阳市土壤肥料技术指导站;江苏省溧阳市溧城镇农业服务中心;江苏省溧阳市别桥镇农业服务中心; |
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| 基金项目： | 农业部测土配方施肥项目; 常州市831人才培养计划项目资助 |
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| 摘 要： | 以江苏省溧阳市为研究区域,以耕地地力评价为研究对象,以县域耕地资源管理信息系统软件为应用平台,用GIS技术将各种属性数据和空间数据进行处理与整合;采用土地利用现状图和土壤图叠加形成评价单元;结合耕地的自然要素选择12个因素作为评价因子;采用相关分析、因子分析、模糊评价、层次分析等数学分析原理,构造层次结构、建立评价因子隶属函数模型及计算各因子的权重,建立了一种定性与定量相结合的耕地地力评价方法。采用累积曲线法来确定耕地地力等级数目以及划分等级界限,将全市56251hm2耕地,划分为5个等级。其中一级地1309hm2,占2.30%;二级地20689hm2,占36.78%;三级地31097hm2,占55.28%;四级地3136hm2,占5.60%;五级地20hm2,占0.04%。研究结果表明,地力等级的划分和各等级的比重确定比较科学和客观,评价结果较准确地反映了研究区域内耕地地力的状况,基本符合当地的客观实际,表明所采用的评价方法对耕地地力评价具有可行性和科学性,对科学管理耕地具有指导意义。
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| 关 键 词： | GIS 耕地地力 评价 溧阳市 |
A GIS-based Research of Evaluation on Cultivated Land Productivity in Liyang City, Jiangsu Province |
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| Ding Wenbin ,Zhu Zhonghua ,Tao Jiping ,Rui Wenqi ,Jiang Jianhua.A GIS-based Research of Evaluation on Cultivated Land Productivity in Liyang City, Jiangsu Province[J].Journal of Agriculture,2011(4). |
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| Authors: | Ding Wenbin Zhu Zhonghua Tao Jiping Rui Wenqi Jiang Jianhua |
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| Institution: | Ding Wenbin 1,Zhu Zhonghua 1,Tao Jiping 2,Rui Wenqi 3,Jiang Jianhua 1 ( 1 Station of Technical Guidance on Soil and Fertilizer,Liyang 213300,Jiangsu,China,2 Licheng Agricultural Service Center,3 Bieqiao Agricultural Service Center,Liyang 213321,China) |
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| Abstract: | The studied area in this paper was Liyang City, Jiangsu Province, China, and the research object was the evaluation for cultivated land productivity. Management information system software at county level was used as application platform. GIS technology was used for dealing and combining all kinds of property data and spatial data. Evaluation unit was formed by combining land present usage images with soil images. By considering the nature essential factors of cultivated land, 12 factors were chosen as eval... |
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| Keywords: | GIS Cultivated Land Productivity Evaluation Liyang City |
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