耕地生产力与粮食安全耦合关系与趋势分析——以河南省为例

发布时间：2018-04-03 08:31

本文选题：粮食安全　切入点：耕地压力指数　出处：《地理科学》2017年09期

【摘要】：粮食是社会经济发展的重要保障。运用耕地、粮食安全测度模型对2005~2014年河南省粮食安全状况进行评估。结果表明:(1)2005~2014年,农民种粮积极性上升10%,耕地压力指数下降71%,农民经济收益上升13%,耕地重心向西南移动。(2)不同指标对耕地生产力的贡献率具有差异性。2005~2009年粮种比对耕地生产力的贡献率最大,2010~2014年贡献率发生转移,粮食播种面积单位产量对耕地生产力的贡献率最大;10 a间,粮种比的贡献(69.77%)相对粮食单产的贡献(39.28%)更能促进河南省耕地生产力的提高。(3)耕地压力受到自然、社会等多方面因素影响。各指标间相关关系较强,种粮积极性与农民耕地保护能力的二者呈现负相关关系。
[Abstract]:Grain is an important guarantee of social and economic development.Using cultivated land and food security measurement model, this paper evaluates the situation of food security in Henan Province from 2005 to 2014.The results show that in 2005 ~ 2014,Farmers' enthusiasm for planting grain increased 10%, cultivated land pressure index decreased 71%, farmers' economic income increased 13%, and the center of gravity of cultivated land moved southwestward. 2) the contribution rate of different indexes to cultivated land productivity was different. The contribution rate of grain and seed ratio to cultivated land productivity was different from 2005 to 2009.The maximum contribution rate was transferred from 2010 to 2014.The contribution rate of grain sown area per unit yield to cultivated land productivity is the largest in 10 years, the contribution of grain to seed ratio is 69.77) and the contribution relative to grain yield is 39.28)) it can promote the improvement of cultivated land productivity in Henan Province.Social factors and other factors.There was a strong correlation between each index, and a negative correlation was found between the enthusiasm of grain planting and the ability of farmers to protect cultivated land.
【作者单位】：河南大学环境与规划学院;城乡协调发展河南省协同创新中心;
【基金】：国家自然科学基金面上项目(41601175) 河南省哲学社会科学规划项目(2014CJJ016) 河南省基础与前沿技术研究计划(152300410067) 河南省高校科技创新团队支持计划(16IRTSTHN012)项目资助~~
【分类号】：F323.211;F326.11

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