安徽农业科学2011，Vol.39Issue(26)：15888-15892,15914,6.
宁夏马铃薯需水量的时空特征分析
Analysis of Temporal and Spatial Characteristics of the Water Requirements of Potato( Solanum tuberosum )in Ningxia
摘要
Abstract
[Objective] The research aimed to discuss the temporal and spatial characteristics of the water requirements of potato in Ningxia. [ Method] Penman - Monteith formulae,recommended by the FAO of the United Nation,were adopted to calculate the reference crop evapotrans piration of 21 weather stations in Ningxia from 1981 to 2007 in order to getting the water requirements of potato throughout the whole growth period in typically stations as Xiji. Then the temporal and spatial changes and the change regulations of the potato water requirements throughout the whole growth period were statistically analyzed. Finally, the change of potato water requirements in Ningxia under the climate change background were analyzed. [ Result] The results showed that the area with high water requirements values matched with the central arid regions of Ningxia. The water requirements of potato in Ningxia had the trend to ascend in the last 27 years and the upward tendency in the southern mountain area was significantly greater than the central region. The potato water requirements increased from the seeding - ramification period,peaked between blooming and flourishing flowering period as the crops thrives,and declined quickly after tuber mature - harvest period. In addition,the magnitude of water shortage for potato in Ningxia will be increased,and the potato growth will face with more seriously water problems in the future. [Conclu sion] The study provides a scientific basis for agricultural production, such as actual irrigation amount, reasonable utilization of water resources and the fields and water resources engineering project planning in Ningxia.关键词
马铃薯/参考作物蒸散量/需水量/时空特征/宁夏Key words
Potato/ Reference crop evapotranspiration/ Water requirement/ Temporal and spatial characteristic/ Ningseriously water problems in the future分类
农业科技引用本文复制引用
李剑萍,耿秀华,韩颖娟,孟丹,王连喜,袁海燕..宁夏马铃薯需水量的时空特征分析[J].安徽农业科学,2011,39(26):15888-15892,15914,6.基金项目
国家自然科学基金项目(40765003) （40765003）
国家“十一五”科技支撑计划重大项目(2007 BAC03A02). （2007 BAC03A02）
