|本期目录/Table of Contents|

[1]李治国,陆贤东,管相荣.1982—2011年旱灾对中国粮食产量影响研究[J].江苏农业科学,2014,42(08):426-430.
 Li Zhiguo,et al.Study on effect of drought on Chinas grain output in the past 30 years[J].Jiangsu Agricultural Sciences,2014,42(08):426-430.
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1982—2011年旱灾对中国粮食产量影响研究(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第42卷
期数:
2014年08期
页码:
426-430
栏目:
农业经济与管理
出版日期:
2014-08-25

文章信息/Info

Title:
Study on effect of drought on Chinas grain output in the past 30 years
作者:
李治国1 陆贤东1 管相荣2
1.商丘师范学院环境与规划学院,河南商丘 476000; 2.河南省国土资源厅信息中心,河南郑州 450016
Author(s):
Li Zhiguoet al
关键词:
旱灾粮食产量旱灾强度粮食损失
Keywords:
-
分类号:
S423
DOI:
-
文献标志码:
A
摘要:
旱灾严重危害粮食生产,进而危及国家粮食安全乃至社会的稳定和经济的发展。利用1982—2011年的旱灾受灾、成灾和绝收数据,从灾害面积、旱灾强度指数(ξn)、旱灾强度异常指数(Id)、灾损量(Fd)、粮食波动系数(Ip)和灾损比例及旱灾影响等角度定量分析了中国与各省区旱灾的时空特征及其对中国粮食安全的影响。研究表明,1982—2011年,我国年均受灾、成灾和绝收面积为361.68×106、186.38×106、38.43×106 hm2,分别占农业气象灾害年平均面积的53.3%、53.2%和47.1%;粮食灾损量在20.46×106~83.63×106 t,年均粮食灾损量为3940×106 t;灾损比例在8.02%~18.97%,平均灾损比例为13.96%,年人均旱灾粮食损失32.56 kg;我国旱灾严重的中心在北方,西南地区为次中心,而东南沿海地区的旱灾较轻;干旱强度与粮食单产波动、粮食灾损量的统计分析表明,干旱对二者有显著影响。因此,建立和完善农业防灾减灾体系,增强应对旱灾的能力对于保证我国粮食安全具有重要意义。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2013-10-25
基金项目:国家自然科学基金(编号:41101072);河南省科技攻关项目(编号:132102310357);教育部人文社会科学研究项目(编号:12YJCZH120);商丘师范学院青年骨干教师资助计划(编号:2013GGJS08)。
作者简介:李治国(1979—),男,山东禹城人,博士,副教授,主要从事资源环境变化与区域发展研究。E-mail:lizhiguo999999@163.com。
更新日期/Last Update: 2014-08-25