2000-2020年河南省粮肥比空间格局变化  

Analysis on the change of temporal and spatial change of grain-fertilizer ratio in Henan Province from 2000 to 2020

作　　者：张志国 温世华 ZHANG Zhiguo;WENG Shihua(Department of Surveying and Planning,Shangqiu Normal University,Shangqiu 476000,China)

机构地区：[1]商丘师范学院测绘与规划学院,河南商丘476000

出　　处：《商丘师范学院学报》2025年第3期62-65,共4页Journal of Shangqiu Normal University

基　　金：河南省科技攻关项目(232102320249)。

摘　　要：粮食安全是全球关注的焦点问题之一.将粮肥比作为评价区域种植业投入中粮食投入比例的指标,以便从投入角度评估各县域对粮食生产的重视程度,同时采用空间自相关和热点分析方法讨论了河南省县域粮肥比的空间变化.研究表明:(1)2000-2020年河南省粮食产量总体呈增加趋势,年均增长率3.32%,仅在2003年出现粮食产量下降现象,2003-2006年、2014-2015年两个时段间增幅较大;(2)2000-2020年,河南省化肥施用量的时序变化以2015年为转折点,明显呈现两个阶段;(3)2000-2020年河南省县域粮肥比的全局莫兰指数在0.596198-0.608391之间,表明2000-2020年河南省县域粮肥比呈空间正相关,总体表现为聚集状态;(4)2000-2020年河南省县域粮肥比热点区域大部分在河南省南部、北部.Food security is one of the focuses of global concern.In this paper,the ratio of grain to fertilizer is used as an index to evaluate the proportion of grain input in regional planting input,so as to evaluate the importance of each county to grain production from the perspective of input.At the same time,spatial autocorrelation and hotspot analysis methods are used to discuss the spatial changes of grain-fertilizer ratio in counties of Henan Province.The results show that:(1)From 2000 to 2020,the grain yield of Henan Province showed an overall increasing trend,with an average annual growth rate of 3.32%.Only in 2003,the grain yield decreased,and the increase between 2003-2006 and 2014-2015 was larger.;(2)From 2000 to 2020,the time series change of chemical fertilizer application in Henan Province took 2015 as the turning point;(3)The global Moran s index of grain-fertilizer ratio in Henan Province from 2000 to 2020 was between 0.596198 and 0.608391,indicating that the grain-fertilizer ratio in Henan Province from 2000 to 2020 showed a positive spatial correlation;(4)From 2000 to 2020,most of the hot spots of grain-fertilizer ratio in counties of Henan Province were in the south and north of Henan Province.

关 键 词：粮肥比 时空分析 冷热点分析 河南省 

分 类 号：F319.9[经济管理—产业经济]