河北省近20年耕地资源安全动态变化及驱动力分析

发布时间：2018-06-17 08:53

本文选题：耕地资源安全 + TOPSIS模型　；参考：《中国农业科技导报》2014年01期

【摘要】：耕地资源的安全对确保区域粮食安全具有重要意义,以1991-2010年河北省耕地资源的相关数据为基础,构建河北省耕地资源安全动态变化评价指标体系,采用熵权TOPSIS模型对耕地资源安全状态进行定量评价,并采用主成分分析法对影响耕地资源安全变化的驱动因子进行计量分析。结果表明:近20年间,河北省耕地资源安全综合指数时序变化明显,介于不安全状态和较不安全状态之间。其中数量安全指数呈先减后增的变化趋势,质量安全指数呈明显的增长趋势,耕地资源生态安全指数呈逐年下降的趋势。影响河北省耕地资源安全的驱动因素主要是社会经济因素、人口因素及自然因素。最后,结合河北省的实际情况,提出改善河北省耕地资源安全水平的相关对策建议。
[Abstract]:The security of cultivated land resources is of great significance to ensure regional food security. Based on the relevant data of cultivated land resources in Hebei Province from 1991 to 2010, the evaluation index system of the dynamic change of cultivated land resources security in Hebei Province is constructed. The TOPSIS model of entropy weight was used to quantitatively evaluate the security status of cultivated land resources, and the principal component analysis was used to analyze the driving factors that affect the security of cultivated land resources. The results show that the time series of the comprehensive index of cultivated land resource security in Hebei Province has changed obviously in the past 20 years, which is between the unsafe state and the less safe state. Among them, the quantitative safety index decreased first and then increased, the quality safety index increased obviously, and the ecological security index of cultivated land resources decreased year by year. The main driving factors affecting the safety of cultivated land resources in Hebei Province are socio-economic factors, population factors and natural factors. Finally, according to the actual situation of Hebei Province, the paper puts forward some countermeasures and suggestions to improve the safety level of cultivated land resources in Hebei Province.
【作者单位】：河北农业大学资源与环境科学学院;河北农业大学国土资源学院;河北农业大学;
【基金】：河北省高等学校科学技术研究优秀青年基金项目(Y2012015) 河北省科技厅平台项目(13967502D)资助
【分类号】：F301.21

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