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中国农学通报 ›› 2015, Vol. 31 ›› Issue (36): 226-236.doi: 10.11924/j.issn.1000-6850.casb15070156

所属专题: 耕地保护

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

华北平原禹城市耕地质量动态评价

陈 朝1,邓南荣1,范 兰2,陈进栋1   

  1. (1广东省生态环境与土壤研究所,广东省农业环境综合治理重点实验室,广州 510650;2中国科学院地理科学与资源研究所,北京 100101)
  • 收稿日期:2015-07-27 修回日期:2015-11-28 接受日期:2015-09-24 出版日期:2015-12-30 发布日期:2015-12-30
  • 通讯作者: 陈朝
  • 基金资助:
    广东省科学院青年科学基金“珠三角典型菜地管理方式变化对土壤有机碳的影响与调控”(qnjj201305);国家自然科学基金“土地利用与人口支撑能力的耦合”(41071063);国家重点基础研究发展计划(973)“全球变化对干旱半干旱区的影响”(2012CB955304)。

Dynamic Evaluation of Farmland Quality of Yucheng County in the North China Plain

Chen Zhao1, Deng Nanrong1, Fan Lan2, Chen Jindong1   

  1. (1Guangdong Key Laboratory of Agricultural Environment Pollution Integrated Control, Guangdong Institute of Eco-Environmental and Soil Sciences, Guangzhou 510650;2Institute of Geographical Sciences and Natural Resources Research, CAS, Beijing 100101)
  • Received:2015-07-27 Revised:2015-11-28 Accepted:2015-09-24 Online:2015-12-30 Published:2015-12-30

摘要: 研究旨在揭示华北平原禹城市耕地质量动态,以期为平原区耕地利用与农业可持续发展提供借鉴。基于采样、观测和统计数据,采用隶属度、主成分分析和综合指数方法,对禹城市2001、2009年两期耕地质量进行了动态评价。结果表明:2001年耕地自然、生态与经济质量分别以一二三四、二三四和三四五等为主。2009年一二等耕地比例相对于2001年有明显提高;两期耕地质量等级分布格局类似;从2001年到2009年,禹城市推行的“测土配方施肥”、“生态农业园区”等项目使得较大面积耕地从三四等转换为一二等,且等级提升存在明显的区域差异。基于多源数据与综合指数模型的耕地质量动态评价能较好的揭示区域耕地质量自然、生态和经济属性的空间分异与动态变化特征。

关键词: 噬菌体展示, 噬菌体展示, 食品安全检测, 表位肽, 食物过敏, 酶定向改造, 抗菌肽

Abstract: This study focused on the dynamic state of farmland quality of Yucheng County in the North China Plain, in order to provide experiences for farmland utilization and sustainable agricultural development in plain areas. Based on sampling, observation and statistics data, the subordinate functions, the principal component analysis (PCA) method and the composite index evaluation model were selected to perform a dynamic evaluation of farmland quality of Yucheng County in 2001 and 2009. The results revealed that, the natural, ecological and economic quality of farmland in Yucheng County in 2001 were dominated by the first, second, third, fourth grade; the second, third, fourth grade and the third, fourth, fifth grade, respectively. The first and second grade of farmland in 2009 increased dramatically in comparing with that in 2001. The distributions of farmland quality grade in both 2001 and 2009 were similar. From 2001 to 2009, the projects like “testing soil for formulated fertilization” and “ecological agriculture park” promoted the substantial conversion of farmland quality from third and fourth grade to first and second grade in the study area, and the grade promotion had obvious regional difference. The dynamic evaluation of farmland quality based on multi-source data with comprehensive index model method developed in this study could comprehensively reflect the overall dynamic change characteristics and spatial heterogeneity of the natural, ecological and economic quality of farmland.