摘要
土地整理是改善土地利用条件,提高土地质量的有效措施,对土地整理后的耕地质量进行评价是土地整理重要工作之一。从耕地质量的内涵和土地整理项目的基本要求出发,选取耕地自然条件和耕地利用条件2个基本因素和12个影响因子,将特尔斐法与层次分析法相结合,确定各因子权重,构建基于土地整理的耕地质量评价指标体系。以安徽省含山县铜闸镇土地整理项目为例,采用传统的土壤调查与3S技术相结合的方法,分析土地整理复垦过程中耕地质量时空格局变化,得出整理前、后耕地质量的级别变化。研究结果表明,通过土地整理,研究区的耕地质量空间分布和级别发生了很大变化,整理后一级、二级、三级质量的土地比整理前分别增加了7.20%,11.95%和0.65%,四级、五级则分别减少了15.65%和4.16%,整理后的耕地质量总体水平是整理前的1.291倍。
Land consolidation is an effective measure to improve land use conditions and land quality, and hence the evaluation of the land quality after land consolidation constitutes one of the important tasks. In this paper, based on the connotation of cultivated land quality and basic requirement of land consolidation project, the authors selected two fundamental factors of the natural conditions and cultivated land use conditions as well as 12 impact factors and used the Delphi method and analytic hierarchy process to determine the weights and construct a cultivated land quality evaluation index system based on the land consolidation. Then, taking land consolidation project of Hanshan County in Anhui Province as a case study, the authors employed the traditional soil survey in combination with the 3S method to analyze the land quality temporal pattern changes during the land consolidation, thus obtaining the level changes before and after the land consolidation. The study result shows that the levels and spatial distribution of land quality of the study area experienced considerable changes through land consolidation. Compared with the situation before land consolidation, the percentage of level 1, level 2 and level 3 increases by 7. 20%, 11. 95% and 0. 65% respectively, whereas the percentage of level 4 and level 5 is reduced by 15. 65%and 4. 16% respectively. After the land consolidation, the overall level of cultivated land quality is 1. 291 times that of the level before the land consolidation.
出处
《国土资源遥感》
CSCD
北大核心
2015年第1期182-186,共5页
Remote Sensing for Land & Resources
基金
安徽省国土资源厅科技项目(编号:2012-K-28)
关键词
土地整理
耕地质量
评价体系
遥感影像
land consolidation
quality of cultivated land
evaluation system
remote sensing image
