摘要
为了科学测算和评估耕地质量潜力,以河北省涿州市为研究区,以400 m×400 m规则网格为评价单元,基于涿州市2013年耕地质量等别数据,运用改进的因素组合法、层次分析法、物元分析模型等,分别计算耕地整治的自然质量潜力和利用质量潜力。研究结果表明:灌溉保证率和有机质含量是涿州市耕地自然质量的可改造限制因素,且灌溉保证率是主导限制因素;涿州市耕地基础设施水平整体偏低,应通过水利灌排、田间道路修建、增加防护林等工程改善利用条件。通过提升可改造限制因素和影响土地利用系数的指标值,涿州市耕地质量国家自然等、国家利用等可分别提升0.53等、0.73等。提出的研究方法为精细化评估区域耕地质量、制定县域土地整治规划提供了方法参考。
Calculation of cultivated land quality potential is an important content of land consolidation project. In order to scientifically calculate the quality of cultivated land remediation potential and arrangement of land consolidation project, based on the analysis of the influence factors of agricultural land classification and the establishment of a set of evaluation index system of land use coefficient, the potential of cultivated land quality was evaluated from two aspects of natural quality and utilization quality. Zhuozhou City of Hebei Province was taken as a case study for the method. After analyzing the previous achievement of agricultural land classification, by using the improved factor combination method and the three qualified convertible grading factors based on classification, eight types of convertible restriction factor combinations were found. The irrigation guarantee rate and soil organic matter content were determined as the limiting factors of cultivated land quality. According to the adaptability of each limiting factor, the lifting scheme was worked out. Then, in the second step, according to the actual situation of the study area, each index which was closely related to the level of land use was analyzed. The three factor layers, including the spatial pattern of cultivated land, the level of cultivated convenience, and the level of infrastructure in the field were included, which included the following eight indexes. Based on the analytic hierarchy process （AHP） , the weights of each index were calculated, and the indexes were normalized to eliminate the dimension. Then the land use level of each grid and the difference of different utilization levels were calculated by the matter element analysis. Finally, with the study of existing land remediation engineering experience and technology of GIS or RS to enhance the level of each factor, and then the land use coefficient, the natural quality index and the utilization quality index were calculated, besides, the differences of natural qualit
作者
赵冬玲
林尚纬
杨建宇
张超
何珊珊
张婷婷
ZHAO Dongling;LIN Shangwei;YANG Jianyu;ZHANG Chao;HE Shanshan;ZHANG Tingting(College of Information and Electrical Engineering, China Agricultural University, Beifing 100083, China;Key Laboratory for Agricultural Land Quality Monitoring and Control, Ministry of Land and Resources, Beijing 100035, China)
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2018年第4期181-191,共11页
Transactions of the Chinese Society for Agricultural Machinery
基金
国土资源部公益性行业科研专项(201511010-06)
关键词
耕地质量潜力
物元分析
可改造因素组合
涿州市
土地整治
potential of cultivated land quality
matter element analysis
reformed factor combination
Zhuozhou City
land consolidation
