摘要
基于玛纳斯河流域中游平原灌区及其周边24个气象站点2013年的气象资料,采用分段单值平均法计算棉花作物系数,利用参考作物法确定灌区各站点棉花不同生育期耗水强度,结合Arc GIS空间插值,分析灌区棉花耗水强度在不同生育期和灌区空间尺度上的变化规律,并确定灌区棉花设计耗水强度。结果表明:灌区棉花全生育期耗水强度呈现先增大后减小的变化趋势,大小顺序为花铃期(5.64~6.84 mm/d)>蕾期(3.74~4.70 mm/d)>吐絮期(2.00~2.50 mm/d)>苗期(1.62~1.76 mm/d);灌区棉花全生育期平均耗水强度自西南向东北呈现递增趋势,介于3.45~3.98 mm;玛河灌区棉花设计耗水强度应在5.69~6.45 mm间选取。
Based on the meteorological data of middle plain irrigation area of the Manasi River and its surrounding 24 meteorological stations in 2013, subsection single value average method was adopted to define the cotton crop coefficient. The reference crop method was used to cal- culate the cotton water consumption intensity at different development stages of each irrigation area. Combined with ArcGIS spatial interpola- tion, the irrigation water consumption variation was analyzed at different growth stages and irrigation spatial scales, then the design water con- sumption intensity of cotton was determined. The results show that： the cotton water consumption intensity at different growth stages increased at first, then decreased. And the order from large to small is blooming period （5.64-6.84 mm/d）, bud stage （3.74-4.70 mm/d）, boll o- pening stage （ 2.00- 2.50 mm/d）, seedling stage （ 1.62- 1.76 mm/d） ; the average water consumption intensity of cotton in the whole growth period presented the increasing trend between 3.45-3.98 mm from southwest to northeast; the design water consumption intensity of cotton should be selected between 5.69-6.45 mm.
作者
曹玉斌
何新林
吕廷波
辛明亮
王萌萌
石培君
CAO Yu-bin HE Xinqin LU Ting-bo XIN Ming-liang WANG Meng-meng SHI Pei-jun(College of Water Conservancy ＆ Architectural Engineering Shihezi University, Shihezi 832000, Xinjiang, China Key Laboratory of Modem Water-Saving Irrigation of Xinjiang Bingtuan, Shihezi 832000, Xinjiang, China)
出处
《节水灌溉》
北大核心
2017年第5期90-92,97,共4页
Water Saving Irrigation
基金
国家自然科学基金(51669030)
NSFC-新疆联合基金(U1203282)
石河子大学优秀青年项目(2013ZRKXYQ17)
关键词
玛河灌区
棉花耗水强度
参考作物法
空间尺度
Manas river irrigation district
cotton water consumption intensity
reference crop method
spatial scales
