排灌机械工程学报
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排灌机械工程学报  2012, Vol. 30 Issue (3): 356-361    DOI: 10.3969/j.issn.1674-8530.2012.03.021
农业水土工程 最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
中国灌溉水粮食生产率及其时空变异
操信春1, 2, 吴普特1, 2, 3, 王玉宝1, 2, 赵西宁2, 3, 张宝庆1
(1.西北农林科技大学水利与建筑工程学院, 陕西 杨凌 712100; 2.中国旱区节水农业研究院, 陕西 杨凌 712100; 3.国家节水灌溉杨凌工程技术研究中心, 陕西 杨凌 712100)
Spatial and temporal variation of crop water productivity in China
 CAO  Xin-Chun-1, 2 , WU  Pu-Te-1, 2 , 3 , WANG  Yu-Bao-1, 2 , ZHAO  Xi-Ning-2, 3 , ZHANG  Bao-Qing-1
(1.College of Water Resources and Architectural Engineering, Northwest A & F University, Yangling, Shaanxi 712100, China; 2.Institute of Water Saving Agriculture in Arid Regions of China, Northwest A & F University, Yangling, Shaanxi 712100, China; 3.National Engineering Research Center for Water Saving Irrigation at Yangling, Yangling, Shaanxi 712100, China)
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摘要 为了评价农业引水总量的生产效益,从全国459个主要灌区的实际灌溉水和粮食生产数据入手,计算、比较了1998,2005和2010年31个省区的灌溉水粮食生产率,利用空间自相关分析方法对1998—2010年中国灌溉水粮食生产率的时空变异规律进行探究.结果显示:各省区灌溉水粮食生产率呈增大趋势,代表年的中国均值为103 kg/m3,最大、最小值分别为河南的215 kg/m3和海南的025 kg/m3,区域间差异较大;灌溉水粮食生产率在空间上存在显著的聚集现象,聚集程度随时间变化不明显,高值省区以黄淮海平原为核心集中分布,长江以南则密集了低值省区;江西、安徽及重庆灌溉水粮食生产率的变化幅度与其相邻省区不同步,造成了局部分异特征的变化.分析了中国灌溉水粮食生产率格局的形成及其随时间变化的原因.
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操信春
吴普特
王玉宝
赵西宁
张宝庆
关键词灌溉水粮食生产率   时空分异   空间自相关   中国   灌区     
Abstract: In order to evaluate the water use efficiency in agriculture in China, the data relevant to the water used for crop production of 459 large irrigation districts in 31 provinces in the years of 1998, 2005 and 2010 were collected; then the values of Grain Irrigation Water Productivity (G) was calculated. The spatial autocorrelation analysis was carried out to study the spatial and temporal variation of G during 1998—2010. The results revealed that G is increased with year in every large irrigation district in all the provinces; meanwhile, the G for a representative year is 1.03 kg/m3, the maximum one is 2.15 kg/m3 in Henan and the minimum is 0.25 kg/m3 in Hainan. There is a clear spatial clustering phenomenon, i.e. a higher G is in HuangHuaiHai region whilst a lower one is found in the south of China. The amplitudes of change in G in Jiangxi, Anhui and Chongqing are different from their neighbors, a localized effect is presented. The reasons for such spatial and temporal variation of G were elaborated.
Key wordsgrain irrigation water productivity   spatial and temporal variation   spatial autocorrelation   China   irrigation districts   
收稿日期: 2011-09-30; 出版日期: 2012-04-10
基金资助:

 “十二五”国家科技支撑计划项目(2011BAD29B09); 教育部、国家外国专家局“111”计划项目(B12007); 西北农林科技大学青年学术骨干项目和基本科研业务费资助项目

通讯作者: 操信春(1986—),男,江西鄱阳人,博士研究生(caoxinchun@nwsuaf.edu.cn),主要从事农业水土资源管理方面的研究.   
作者简介: 吴普特(1963—),男,陕西武功人,研究员,博士生导师(通信作者,gzjwpt@vip.sina.com),主要从事节水农业与水土保持方面研究.
引用本文:   
操信春,吴普特,王玉宝等. 中国灌溉水粮食生产率及其时空变异[J]. 排灌机械工程学报, 2012, 30(3): 356-361.
CAO Xin-Chun,WU Pu-Te,WANG Yu-Bao et al. Spatial and temporal variation of crop water productivity in China[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(3): 356-361.
 
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