南和县域耕地集约利用评价及障碍因素分析研究

发布时间：2018-05-31 12:28

本文选题：时空分异 + 集约利用　；参考：《河北农业大学学报》2017年04期

【摘要】：为探究耕地利用中的主要障碍限制因素,实现耕地的集约高效利用,以河北省南和县为例,基于2003年、2008年及2013年耕地利用数据,从耕地投入强度、利用程度、利用效率以及持续状况4个方面构建评价指标体系,应用变异系数法确定指标权重,采用加权和法对耕地集约利用情况及变化进行评价,在此基础上,采用协调度指数和障碍度指数对南和县耕地集约利用各因子的协调程度及对耕地集约利用的障碍程度进行了评价和时空特征分析。结果表明:2003—2013年,南和县各乡镇的集约水平有所提高,集约利用等级逐渐由低级向高级转化;集约利用等级相同的乡镇呈现出集聚连片分布和数量逐年扩大的特征;南和县及其各乡镇的因素层因子间的协调度逐步增加;各乡镇的最大限制因子是投入强度,最小限制因子是持续状况。这为南和县耕地资源可持续利用提供理论支撑和技术支持。
[Abstract]:In order to explore the main limiting factors of cultivated land utilization and realize the intensive and efficient use of cultivated land, taking Nanhe County of Hebei Province as an example, based on the data of cultivated land utilization in 2003, 2008 and 2013, the input intensity and utilization degree of cultivated land were analyzed. The evaluation index system is constructed from four aspects of efficiency and sustainability. The coefficient of variation method is used to determine the index weight, and the weighted sum method is used to evaluate the intensive utilization and change of cultivated land. Coordination degree index and obstacle degree index were used to evaluate the degree of coordination of various factors of intensive utilization of cultivated land and the degree of obstacle to intensive utilization of cultivated land in Nanhe County. The results showed that from 2003 to 2013, the intensive level of towns and townships in Nanhe County increased, and the level of intensive utilization gradually changed from lower level to higher level, and the towns with the same level of intensive utilization showed the characteristics of agglomeration distribution and increasing number year by year. The degree of coordination among the factors in Nanhe county and its villages and towns increased gradually, the maximum limiting factor of each township was input intensity, and the minimum limiting factor was persistent condition. This provides theoretical and technical support for the sustainable utilization of cultivated land resources in Nanhe County.
【作者单位】：河北农业大学;河北省保定地质工程勘察院;
【基金】：河北省高等学校科学技术研究项目(QN2015168)
【分类号】：F323.211

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