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机构地区:[1]山东农业大学资源与环境学院,山东泰安271018 [2]山东省土地勘测规划院,山东济南250014 [3]莱芜市国土资源局,山东莱芜271100
出 处:《山东农业大学学报(自然科学版)》2013年第4期620-623,629,共5页Journal of Shandong Agricultural University:Natural Science Edition
基 金:山东省优秀中青年科学家科研奖励基金项目(2007BS08018);山东省自然科学基金项目(2R2013DM006);山东农业大学青年科技创新基金项目(23459)
摘 要:本文以莱芜市里辛土地整理项目为例,采用野外采样、室内分析、GIS技术和综合评价法,研究了丘陵土地整理区土壤质量评价方法及其变化。研究结果表明,土地整理后研究区土壤质量级别空间分布、面积和总体质量水平均发生变化。整理前,土壤质量共分为四级,各级面积比重差异不大,分别为19.07%、25.52%、26.81%和28.6%,空间分布较零散。整理后,一级和三级面积增加,二级和四级面积减少,一、二、三、四级各级面积比重差异显著,分别为26.56%、23.61%、38.19%和11.64%,空间分布相对集中。整理后土壤质量总体提高4.68%。评价方法对土地整理土壤质量评价有借鉴意义,评价结果可为里辛土地整理项目绩效评价提供依据。Taking Lixin Land Consolidation Project of Laiwu City as an example, combining field survey, in - door analysis, GIS technology with comprehensive evaluation method, evaluation method and change of soil quality in hilly land consolidation region were studied. The results indicated grade spacial distribution, area and total quality level of soil quality changed before and after land consolidation. Before land consolidation, soil quality was devided into 4 grades and spacial distribution was much scattered. The area propotion of grade 1,2, 3, and 4 was 19.07%, 25.52%, 26.81% and 28.6% respectively and the propotion difference was little be- fore land consolidation. After land consolidation, area of grade 1 and 3 increased and grade 2 and 4 decreased. The area propotion of grade 1,2, 3 and 4 was 26.56%, 23.61%, 38.19% and 11.64% respectively and the propotion difference was obvious. Grade spacial distribution was concentrated relatively and total soil quality level increased 4.68% after land consolidation. The evaluation method has instructive significance for soil quality evaluation of land consolidation, and the results may provide scientific basis for prformance evaluation of Lixin Land Consolidation Project.
分 类 号:S323.24[农业科学—作物遗传育种]
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