[目的]通过土地整治使得未利用地的利用类型及土壤理化性质等发生变化，从而评价土地整治后的新增耕地质量。[方法]选取有效土层厚度等6个方面构建评价指标体系，应用特尔斐法确定权重。依据《农用地质量分等规程》，采用“多因素综合评价法”对该地区190．5005 hm 2新增耕地质量等级进行评价。[结果]新增耕地省级自然等为6等、省级利用等为7等、省级经济等为6等；新增耕地国家级自然等为12等、利用等为12级、国家级经济等为11级。[结论]经过对新增耕地质量评定，实现了耕地数量的增加和质量的提升。%Objective] Land reclamation changed the use type and soil physical and chemical characteristics of unused land, so as to evaluate the new cultivated land after land reclamation .[ Method] Evaluation index system was constructed from six aspects of effective thickness of soil layer and so on.Weight was detected by Delphi method.According to Farmland Quality Grading Regulations, multi-factor evaluation method was used to evaluate the grade of 190.500 5 hm2 new cultivated land in the area.[Result] The new cultivated land belonged to 6 provincial natural grade, 7 provincial use grade, and 6 provincial economic grade.And the new cultivated land belonged to 12 national natural grade, 12 national use grade and 11 national economic grade.[Conclusion] Both quantity and quality of cultivated land increased through evaluating the quality of new cultivated land.
展开▼
