排灌机械工程学报
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排灌机械工程学报  2019, Vol. 37 Issue (6): 540-544    DOI: 10.3969/j.issn.1674-8530.18.1004
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  
考虑气象因子的不确定性灌溉水资源优化配置
德佳硕,郭萍*,张成龙,岳琼,单宝英
中国农业大学水利与土木工程学院, 北京 100083
Optimal allocation of irrigation water resources based on climate factor under uncertainty
DE Jiashuo, GUO Ping*, ZHANG Chenglong, YUE Qiong, SHAN Baoying
College of Water Resources & Civil Engineering, China Agricultural University, Beijing 100083, China
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摘要 基于不确定性区间作物水分生产函数,选取春小麦、玉米、棉花和白兰瓜这4种典型作物,建立不确定性条件下灌溉水资源优化配置模型,并将气象因子(蒸发蒸腾量和相对湿度)的不确定性引入其中,以反映气候变化对灌区配水的影响.结果表明,在石羊河流域民勤地区,玉米单方水经济效益较低,故其优化灌溉定额相比现状灌溉定额变化较大.棉花是单方水经济效益最大的作物,其次是白兰瓜,所以当可用水量短缺时,在确保粮食安全的前提下,为降低因灌溉缺水而带来的经济损失,要优先保证棉花和白兰瓜灌溉用水.引入气象因子的灌区水资源优化配置模型区间优化配水定额范围更广,反映出气象因子对灌区配水的影响.本研究验证了不确定性方法在实际应用的可行性,可为灌区水资源合理分配提供更可靠的科学依据.
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作者相关文章
德佳硕
郭萍*
张成龙
岳琼
单宝英
关键词气象因子   灌区水资源   优化配置   不确定性   区间作物水分生产函数   函数区间     
Abstract: Based on the interval crop water production functions under uncertainty, spring wheat, corn, cotton and honey dew melon were selected as study crops. Then the optimal allocation of water resources model in the Minqin irrigation region under uncertainty was established. Besides, to reflect the impact of climate change on irrigation water allocation, the uncertainty of meteorological factors(ET0 and RH)was also introduced in the model. The results show that the economic benefits per unit water of corn is low in the Minqin irrigation region and its optimal irrigation quota is larger than the current irrigation quota. Cotton has the biggest economic benefits per unit water in the Minqin irrigation region, followed by honey dew melon. In the case of limited available water and the premise of ensuring food security, the irrigation water for cotton and honey dew melon should be ensured first to reduce the economic loss. The model including meteorological factors has a wider range of interval solutions, which reflects the impact of meteorological factors on water allocation. This study verifies the feasibility of the uncertainty method in practical application and provides a more reliable scientific basis for the rational allocation of water resources in irrigation areas.
Key wordsmeteorological factor   water resources in the irrigation area   optimal allocation   uncertainty   interval crop water production functions   function interval   
收稿日期: 2018-03-22;
基金资助:国家自然科学基金资助项目(41871199)
引用本文:   
德佳硕,郭萍*,张成龙等. 考虑气象因子的不确定性灌溉水资源优化配置[J]. 排灌机械工程学报, 2019, 37(6): 540-544.
DE Jia-Shuo,GUO Ping-*,ZHANG Cheng-Long et al. Optimal allocation of irrigation water resources based on climate factor under uncertainty[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(6): 540-544.
 
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