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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 the Lixin land consolidation project in Laiwu City as an example, this paper studied the methods and the changes of soil quality assessment in hilly land consolidation area using field sampling, indoor analysis, GIS technology and comprehensive evaluation method. The results show that the spatial distribution, area and overall quality of soil quality in the study area after land consolidation change. Before finishing, the soil quality is divided into four levels, and the proportions of the areas at all levels are not much different, which are 19.07%, 25.52%, 26.81% and 28.6% respectively, and the spatial distribution is fragmented. After finishing, the primary and tertiary areas increased while the secondary and tertiary areas decreased. The proportions of the first, second, third and fourth levels at all levels were significantly different, accounting for 26.56%, 23.61%, 38.19% and 11.64% respectively. The spatial distribution Relatively concentrated. After finishing the overall soil quality increased by 4.68%. The evaluation method has reference significance to the soil quality assessment of land consolidation, and the evaluation results can provide the basis for the performance evaluation of the land consolidation project of Lixin.