| 基于土地评价与立地评估的泾阳县耕地定级 |
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| 引用本文： | 李团胜,赵 丹,石玉琼.基于土地评价与立地评估的泾阳县耕地定级[J].农业工程学报,2010,26(5):324-328. |
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| 作者姓名： | 李团胜 赵 丹 石玉琼 |
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| 作者单位： | 1. 长安大学地球科学与资源学院,西安,710054
2. 长安大学地球科学与资源学院,西安,710054;山东省菏泽市国土资源局,菏泽,274000 |
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| 基金项目： | “国土资源大调查”陕西省农用地分等定级与估价项目（2004889） |
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| 摘 要： | 该文基于美国的土地评价与立地评估（land evaluation and site assessment，LESA）方法，对陕西省泾阳县耕地进行了定级研究。把整个定级过程分为两个部分，前一部分为土地的自然质量特征评价；后一部分为土地的社会经济质量特征评价，在这两部分的评价中，采用主成分分析法选择评价因子。采用特尔菲法确定各因子的权重。最后在这两部分评价的基础上，对这两部分评价指数加权求和，得到定级单元总指数，这两部分的权重确定采用耕地质量综合指数与标准粮产量相关分析的方法来确定。结果表明，泾阳县耕地质量较高，全县耕地分为5级，一级耕地占全县耕地面积的14.43%，二级、三级、四级和五级分别占耕地面积的26.23%、26.07%、19.39%和13.88%。该文认为，LESA方法是土地定级的好方法之一。
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| 关 键 词： | 定级，土地利用，区域规划，土地评价与立地评估（LESA）法，泾阳县 |
| 收稿时间： | 2008/11/9 0:00:00 |
| 修稿时间： | 2009/4/26 0:00:00 |
Farmland grading based on land evaluation and site assessment method in Jingyang County, Shaanxi Provence |
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| Li Tuansheng,Zhao Dan,Shi Yuqiong.Farmland grading based on land evaluation and site assessment method in Jingyang County, Shaanxi Provence[J].Transactions of the Chinese Society of Agricultural Engineering,2010,26(5):324-328. |
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| Authors: | Li Tuansheng Zhao Dan Shi Yuqiong |
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| Abstract: | Based on land evaluation and site assessment (LESA) method, the farmland of Jingyang County in Shannxi Province was graded with results of five grades in quality. The grading process was divided into two parts, one being the farmland natural quality valuation and another social-economical quality valuation. In these two parts, principal component analysis was used to select evaluation factors. And the Delphi method was used to determine the weights of factors. Finally based on natural quality valuation and social-economical quality valuation, the total grading indices of a grading unit was calculated by weight sum of natural quality index and the social-economical quality index. The weights of two parts were determined by correlation of farmland grading index and standard corn output. The grade one farmland of Jingyang County was 6.79% of total farmland in area, being the best in quality. And grade 2nd, 3rd, 4th and 5th occupied 26.23%, 26.07%, 19.39% and 13.88% in area, respectively. LESA method can be used in land gradation. It is the one of the good methods for land gradatio |
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| Keywords: | grading land use region planning land evaluation and site assessment method Jingyang County |
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