水资源约束下内蒙古农牧交错带耕地适度集约利用研究——以乌兰察布市为例

发布时间：2018-01-16 12:01

本文关键词：水资源约束下内蒙古农牧交错带耕地适度集约利用研究——以乌兰察布市为例　出处：《干旱区资源与环境》2017年05期 　论文类型：期刊论文

【摘要】：定量测度资源强约束区耕地适度集约利用程度对于区域的可持续发展具有重要意义。文中构建了耕地适度集约利用理论框架,运用乌兰察布市194户普通农户及45户种植大户的调研数据及区域统计数据进行了实证分析。主要得到以下结论:1)耕地适度集约是指在区域资源约束条件下,边际成本等于边际产出时的集约边际。2)仅考虑利润最大化的情况下,单位耕地面积水资源适度投入为7584.99m3/hm~2,单位耕地面积物质适度投入为5394.5元/hm~2,家庭适度经营规模为10.95hm~2。3)在水资源约束下,单位耕地面积水资源适度投入为3980.03m3/hm~2,单位耕地面积物质投入为3897.64元/hm~2,家庭适度经营规模为22.84hm~2,目前种植大户已经过度集约利用,水浇地普通农户水资源及物质投入最接近适度值。在耕地可持续发展的要求下,可以适度扩展水浇地普通农户的经营规模,而控制种植大户的发展速度及规模。
[Abstract]:Quantitative measurement of the degree of moderate intensive use of cultivated land in strongly constrained areas is of great significance to the sustainable development of the region. A theoretical framework of moderate intensive utilization of cultivated land is constructed in this paper. Based on the survey data of 194 ordinary farmers and 45 large planting households in Wulanchabu, this paper makes an empirical analysis on the regional statistical data. The main conclusions are as follows: 1). Moderate intensity of cultivated land refers to the constraints of regional resources. When marginal cost is equal to marginal output, intensive marginal. 2) if profit is maximized, the appropriate input of water resources per unit cultivated land area is 7584.99m3 / hmm2. The moderate input of per unit cultivated land area was 5394.5 yuan / hmm-2, and the moderate scale of household management was 10.95 hmm3) under the restriction of water resources. The appropriate input of water resources per unit cultivated land area is 3980.03m3 / hmm2, and the material input per unit cultivated land area is 3897.64 yuan / hmm2. The appropriate scale of household management is 22.84hmm2. At present, the large planting households have been over-intensive utilization, and the water resources and material input of ordinary farmers on irrigated land are the closest to the appropriate value. Under the request of the sustainable development of cultivated land. The management scale of ordinary farmers on irrigated land can be expanded moderately, and the development speed and scale of large farmers can be controlled.
【作者单位】：中国农业大学资源与环境学院;
【基金】：国家自然科学基金项目(41271110)资助
【分类号】：F321.1
【正文快照】： "十二五"期间,随着高标准基本农田、农田水利建设力度增加,耕地集约度不断提升[1],从而形成了我国农业农村发展的新黄金期,在耕地资源不断减少的背景下[2],粮食连年高位增产[3]。但是,农业生产繁荣的同时也面临诸多问题,在部分农业资源短缺地区,资源开发强度过大,导致地下水漏

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