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文章在综合分析边际耕地概念的基础上,结合实地调查观测综合研究了京津冀西北部区域边际耕地及其综合整治的对策。结果表明:将耕地经营者的投入-产出效益、耕地利用活动对区域环境质量和人群健康的损害状况作为边际耕地的综合评定标准;在京津冀西北部区域低等耕地绝大多数属于边际耕地,其限制性因素有气候等先天性因素、也有土壤等自然因素,更有社会经济等人为因素;边际耕地综合整治在强化耕地基础设施建设的同时,必须顾及地下水资源开发利用的持续性,还需借助土壤发生学和生态学理论,剖析区域边际耕地的主要限制性因素,采取工程技术一是消除或弱化限制因素的影响,二是运用物质循环措施尽快培肥土壤,以促进区域协调发展。
Based on the comprehensive analysis of the concept of marginal arable land, the article comprehensively studied the countermeasures of the marginal arable land and its comprehensive improvement in the northwestern area of Beijing, Tianjin and Hebei with the field survey and observation. The results showed that the input-output benefit of cultivated land managers, the damage status of regional environmental quality and human health caused by cultivated land use activities were the comprehensive evaluation criteria of marginal cultivated land. Most of the low-grade cultivated land in the northwestern Beijing-Tianjin-Hebei region belonged to the marginal Cultivated land has its limiting factors such as climate and other congenital factors as well as natural factors such as soil and more socio-economic factors. Comprehensive improvement of marginal cultivated land must not only strengthen the sustainable development of groundwater resources, It is also necessary to analyze the main limiting factors of the marginal arable land in the region by means of soil genesis and ecology theory. The first is to eliminate or weaken the influence of the limiting factors and the second is to use the material recycling measures to fertilize the soil as soon as possible so as to promote the coordinated development of the region .