基于土地整理的耕地经济价值评定及其变化

耕地经济价值评定是土地整理重要技术工作之一，其评价结果是土地整理经济效益评价的重要依据。该文以莱芜市里辛土地整理项目为例，采用GIS技术、实地调查和室内分析相结合，探讨了基于土地整理的耕地经济价值评定指标体系、评价方法及整理前后价值变化。研究结果表明，研究区在土地整理前后，耕地经济价值的级别空间分布、面积和总价值都发生很大改变。整理前耕地主要是旱地，经济价值级别主要为二、三和四级地，占总耕地面积的87.20%，一级地很少；整理后耕地全部为菜地和水浇地，级别基本为一、二级地，占总耕地面积的99.88%。整理后的耕地经济总价值是整理前的1.286倍，土地整理经济效益显著。该研究方法对土地整理耕地经济价值评定有借鉴意义，评价结果可为莱芜市里辛土地整理绩效评价提供科学依据。

Evaluation and change of arable land economic value based on land consolidation

The evaluation of arable land economic value is part of land consolidation work, which results from the basis of economic benefit appraisal for arable land. Taking Lixin Land Consolidation (LC) Project of Laiwu City as an example, combining GIS technology, field survey with in-door analysis, index system, evaluation methods of arable land economic valuation and the change in economic valuation based on LC were studied. The results indicated that grade spacial distribution, area and total valuation of arable land economic value changed much before and after LC. Before LC, arable land was mainly dry land and was graded 2, 3 and 4, which occupied 87.20% of total arable land area, and land of grade 1 was little. Arable land was converted into vegetable land and irrigable land and grades of arable land economic value were basically 1 and 2 after LC, which occupied 99.88% of total arable land area. Total arable land economic value after LC was 1.286 times before LC and LC economic benefit was prominent. The method has instructive significance for arable land economic evaluation of LC, and the results may provide scientific basis for economic benefit appraisal of Lixin LC Project.