Analysis of crop water requirement and influence factors in Jinghui Canal irrigation district
SONG Yang1,2, LI Hui1,2, ZHOU Weibo1,2, DONG Qiguang3
1.College of Environmental Science and Engineering, Chang’an University, Xi’an, Shaanxi 710054, China; 2. Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas of Ministry of Education, Chang’an University, Xi’an, Shaanxi 710054, China; 3. Shaanxi Provincial Land Engineering Construction Group, Xi’an, Shaanxi 710054, China
Abstract:The transpiration and evaporation, and irrigation water requirement change of winter wheat and maize were analyzed by using CROPWAT model. The correlation coefficient of crop water requirement with meteorological factors was calculated by using SPSS software. The result showed that the average transpiration and evaporation of winter wheat was 634.04 mm in the whole growth period, and the peak appeared in the middle of April to mid-May, the whole irrigation area had the same trend of transpiration and evaporation of winter wheat; the average transpiration and evaporation of maize was 525.22 mm, and the peak appeared in the middle of July to late August, the maximum was 535.97 mm in Sanyuan and the minimum was 514.68mm in Fuping. Irrigation water requirement of winter wheat in the sowing-over wintering stage was minimum, and theat in the turning green-jointing stage increased. Irrigation water requirement of corn in the tasseling, flowering stage was 22.67 mm. July-August was for the grain formation-milk stage, water requirement was 63.53 mm, until late September, corn irrigation water requirement dropped off. Crop water requirement was positively come lated with temperature, whileit was negatively correlated with precipitation and it was less correlated with wind speed and relative humidity. Temperature, sunshine time and relative humidity are the main factors influencing the crop water requirement.
宋扬,, 李慧,, 周维博,, 董起广. 泾惠渠灌区作物需水量特征及影响因素分析[J]. 排灌机械工程学报, 2016, 34(8): 703-708.
SONG Yang,, LI Hui,, ZHOU Weibo,, DONG Qiguang. Analysis of crop water requirement and influence factors in Jinghui Canal irrigation district. Journal of Drainage and Irrigation Machinery Engin, 2016, 34(8): 703-708.
[1]操信春,,吴普特,王玉宝,等. 基于DEA的灌区生产效率分析——以江苏省为例[J]. 排灌机械工程学报, 2014, 32(2): 173-178. CAO Xinchun,,WU Pute,WANG Yubao, et al. Analysis of production efficiency of irrigation districts based on DEA method:take Jiangsu province as an example[J]. Journal of drainage and irrigation machinery enginee-ring, 2014, 32(2): 173-178.(in Chinese)[2]DALEZIOS N R,LOUKAS A,BAMPZELIS D. Spatial variability of reference evapotranspiration in Greece[J]. Physics and chemistry of the earth,2002,27(23/24):1031-1038.[3]陈玉民,郭国双,王广兴,等. 中国主要作物需水量与灌溉[M]. 北京:水利电力出版社,1995:190-195.[4]宋悦,粟晓玲. 变化环境下泾惠渠灌区净灌溉定额需水的响应[J]. 节水灌溉,2015(7):90-94. SONG Yue, SU Xiaolin. Response of irrigation water requirement under changing environment in Jinghui Canal irrigation district[J].Water saving irrigation, 2015(7):90-94.(in Chinese)[5]刘晓英,林而达. 气候变化对华北地区主要作物需水量的影响[J]. 水利学报,2004,35(2):77-82. LIU Xiaoying, LIN Erda. Impact of climate change on water requirement of main crop in North China[J]. Journal of hydraulic engineering,2004,35(2):77-82.(in Chinese)[6]孙世坤,蔡焕杰,王健. 石羊河流域春小麦灌溉需水量时空分布研究[J].节水灌溉,2010(5):22-27. SUN Shikun, CAI Huanjie, WANG Jian. The study of temporal and spatial distribution of spring wheat irrigation water requirement in Shiyang river basin[J]. Water saving irrigation,2010(5):22-27.(in Chinese)[7]胡玮,严昌荣,李迎春,等. 冀京津冬小麦灌溉需水量时空变化特征[J].中国农业气象,2013,34(6):645-654. HU Wei, YAN Changrong, LI Yingchun, et al. Spatial and temporal variation of irrigation water requirement for winter wheat in Jijingjin region[J]. Chinese journal of grometeorology, 2013,34(6):645-654.(in Chinese)[8]宋妮,孙景生,王景雷,等.河南省冬小麦需水量的时空变化及影响因素[J].应用生态学报,2014, 25(6):1694-1699. SONG Ni, SUN Jingsheng, WANG Jinglei, et al. Temporal and spatial variation of water requirement of winter wheat and its influencing factors in Henan province[J]. Chinese journal of applied ecology, 2014, 25(6):1694-1699.(in Chinese)[9]ALLEN R G, PEREIRA L S, RAES D, et al. Crop evapotranspiration guidelines for computing crop water requirements[R]. Irrigation and drainage paper NO.56, Rome: FAO. 1998.[10]FAO.CROPWAT: a computer program for irrigation planning and management[M].Rome: FAO, 1992:126-127.[11]李立.基于气候变化的宝鸡陕灌区作物需水量时空变异性研究[D].杨凌:西北农林科技大学,2010: 31-65.[12]高振晓.泾惠渠灌区冬小麦节水灌溉制度模式研究[D].杨凌:西北农林科技大学,2014:18-40.[13]董起广.泾惠渠灌区谁资源健康配置研究及地下水数值模拟[D].西安:长安大学,2014:33-42.[14]董平国,王增丽,温广贵,等. 不同灌溉制度对制种玉米产量和阶段耗水量的影响[J].排灌机械工程学报,2014,32(9):821-827. DONG Pingguo, WANG Zengli, WEN Guanggui, et al. Effects of irrigation schedule on water consumption and yield of seed maize[J]. Journal of drainage and irrigation machinery engineering, 2014,32(9):821-827.(in Chinese)[15]刘增进,张敏,潘乐.作物需水量计算模型研究[J].人民黄河,2009,31(9):61-63. LIU Zengjin, ZHANG Min, PAN Le. The research of crop water requirement calculation model[J]. Yellow river, 2009,31(9):61-63.(in Chinese)