国土资源遥感
國土資源遙感
국토자원요감
REMOTE SENSING FOR LAND & RESOURCES
2015年
1期
182-186
,共5页
土地整理%耕地质量%评价体系%遥感影像
土地整理%耕地質量%評價體繫%遙感影像
토지정리%경지질량%평개체계%요감영상
land consolidation%quality of cultivated land%evaluation system%remote sensing image
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。
土地整理是改善土地利用條件,提高土地質量的有效措施,對土地整理後的耕地質量進行評價是土地整理重要工作之一。從耕地質量的內涵和土地整理項目的基本要求齣髮,選取耕地自然條件和耕地利用條件2箇基本因素和12箇影響因子,將特爾斐法與層次分析法相結閤,確定各因子權重,構建基于土地整理的耕地質量評價指標體繫。以安徽省含山縣銅閘鎮土地整理項目為例,採用傳統的土壤調查與3S技術相結閤的方法,分析土地整理複墾過程中耕地質量時空格跼變化,得齣整理前、後耕地質量的級彆變化。研究結果錶明,通過土地整理,研究區的耕地質量空間分佈和級彆髮生瞭很大變化,整理後一級、二級、三級質量的土地比整理前分彆增加瞭7.20%,11.95%和0.65%,四級、五級則分彆減少瞭15.65%和4.16%,整理後的耕地質量總體水平是整理前的1.291倍。
토지정리시개선토지이용조건,제고토지질량적유효조시,대토지정리후적경지질량진행평개시토지정리중요공작지일。종경지질량적내함화토지정리항목적기본요구출발,선취경지자연조건화경지이용조건2개기본인소화12개영향인자,장특이비법여층차분석법상결합,학정각인자권중,구건기우토지정리적경지질량평개지표체계。이안휘성함산현동갑진토지정리항목위례,채용전통적토양조사여3S기술상결합적방법,분석토지정리복은과정중경지질량시공격국변화,득출정리전、후경지질량적급별변화。연구결과표명,통과토지정리,연구구적경지질량공간분포화급별발생료흔대변화,정리후일급、이급、삼급질량적토지비정리전분별증가료7.20%,11.95%화0.65%,사급、오급칙분별감소료15.65%화4.16%,정리후적경지질량총체수평시정리전적1.291배。
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.