作　　者： ; ; ; ;

机构地区： 山东农业大学资源与环境学院

出　　处： 《自然资源学报》 2009年第3期536-544,共9页

摘　　要： 小尺度耕地综合评价是小区域范围内耕地质量保护和管理的重要手段。研究对影响山东省丁庄镇耕地质量的土壤养分状况、耕地立地条件、耕地理化性状和耕地土壤污染状况分别进行了评价。采用土壤图和土地利用现状图叠置方法划分评价单元,系统聚类和DELPHI法筛选评价因素,层次分析法确定权重,模糊评价法确定耕地质量等级。研究结果表明:①丁庄镇耕地土壤养分含量较高,一二级地占总面积的54.41%;②立地条件和理化性状较好,它们的一二级地分别占总面积的58.26%和60.00%;③土壤污染较轻的一二级地占61.02%,主要集中在中部和北部地区;④耕地综合质量状况总体良好,其中一级地占总面积的21.17%,二级地占31.60%,三级占29.38%,四级占17.85%,耕地等级分布与当地实际产出相一致。 Favorable cultivated land quality and rational utilization of resources are important foundation and critical condition for regional agricultural land sustainable development of socialeconomy. So comprehensive evaluation of cultivated land quality at small scale is an important means for small scale regional cultivated land quality protection and management. This study took Dingzhuang Town in Guangrao County of Shandong Province as a case, evaluated the soil nutrient status, the site conditions, the physiochemical properties and the soil pollution separately. Overlay method between soil map and land use map was adopted to produce evaluation units, evaluation factors were chosen by Delphi approach and cluster analysis with their weights determinedby AHP method. Finally the grades of comprehensive quality of cultivated land were evaluated by fuzzy discrimination method. This results showed that （ 1 ） the soil nutrient was high, the first and second grade was 54. 41% of the total area. （2） The site conditions and physiochemical properties were good, the first and second grade covers 58.26% and 60. 00% separately. （3） The first and second grade of lower pollution was 61.02% ,mainly in central and northern parts. （4） The comprehensive quality of cultivated land was good in general. The first grade was 21.17% of the total area, the second grade 31.60%, the third grade 29.38%, the fourth grade only 17.85% of the total area and the grade distribution of cultivated land was consistent with actual output. This study proved that the GIS supported comprehensive evaluation of cultivated land quality at small scale is feasible, explored cultivated land quality evaluation methods which combine GIS technique in small scale and analyzed comprehensive quality of cultivated land status in the study area. Therefore this study has noticeable significance to the cultivated land quality protection and improvement in small scale.

关 键 词： 小尺度 耕地质量 丁庄镇

领　　域： [经济管理]