春玉米生长中期灌水量差异对其蒸发蒸腾量估算精度的影响

doi:10.3969/j.issn.1674-8530.18.1100

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Abstract In order to improve estimation accuracy of evapotranspiration(ET)of crops in arid areas, the ET of spring maize in Shiyang River Basin in growth middle stage was estimated with FAO-56 in the paper. The effect of irrigation quota on estimation accuracy of ET was identified by comparing calculated values with measured ones. The estimation error was discussed by analyzing the spatial distribution of soil moisture and its change rule under different irrigation treatments. It was proposed that the average water moisture in the entire root zone rather than in the partial root zone should be used in the calculation of soil water stress coefficient. The results show that the FAO-56 can estimate ET accurately under low irrigation quota treatment, however, its estimation accuracy decreass with increasing irrigation quota. As a result, the estimation error in ET is as poor as -14.13% under high irrigation quota. The soil water stress coefficient is calculated with the average soil moisture in the soil moisture slowly changing layer and above. This method can improve estimation accuracy of ET of crops in arid areas under high irrigation quota treatment effectively. 

Key words： irrigation water FAO-56 evapotranspiration soil water content spring maize

Received: 30 April 2018

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	ZHOU Shi-Wei
	HU Xiao-Tao-^*
	WANG Wen-E
	RAN Hui
	ZHANG Ya-Jun

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ZHOU Shi-Wei,HU Xiao-Tao-^*,WANG Wen-E等. Effect of irrigation quota on estimation accuracy of evapotranspiration in growth middle stage of spring maize[J]. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(9): 790-795.

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http://zzs.ujs.edu.cn/pgjx/EN/10.3969/j.issn.1674-8530.18.1100 OR http://zzs.ujs.edu.cn/pgjx/EN/Y2018/V36/I9/790

[1]胡庆芳,尚松浩,田俊武,等. FAO-56计算水分胁迫系数的方法在田间水量平衡分析中的应用[J]. 农业工程学报,2006,22(5): 40-43.
　　HU Qingfang, SHANG Songhao, TIAN Junwu, et al. Application of water stress coefficient from FAO-56 to the field water balance analysis[J]. Transactions of the CSAE, 2006, 22(5): 40-43.(in Chinese)
[2]ALLEN R G, PEREIRA L S, RAES D, et al. Crop evapotranspiration:guidelines for computing crop water requirements[J]. FAO irrigation and drainage, 1998,56:300.
[3]韩雄,张强,安静华. 低定额灌溉条件下农田土壤水蒸散模型的研究[J]. 华北水利水电学院学报. 2000,21(1): 20-23.
　　HAN Xiong, ZHANG Qiang, AN Jinghua. Study on evapotranspiration model of agricultural soil water under low irrigation[J]. Journal of North China Institute of Water Conservancy and Hydroelectric Power, 2000, 21(1): 20-23.(in Chinese)
[4]周始威, 胡笑涛, 王文娥, 等. 春玉米不同生育期土壤湿润层深度调控的稳产节水效应[J]. 农业工程学报,2016, 32(21): 125-132.
　　ZHOU Shiwei, HU Xiaotao, WANG Wen′e, et al. Water-saving and stable yield effects of regulation on soil wetted depth in different growth stage of spring maize[J]. Transactions of the CSAE, 2016, 32(21): 125-132.(in Chinese)
[5]胡永翔,李援农,张莹,等. 基于水分胁迫系数的枣树园土壤含水率估算[J]. 排灌机械工程学报, 2013,31(3): 270-276.
　　HU Yongxiang, LI Yuannong, ZHANG Ying, et al. Estimation of soil moisture content of jujube orchard in loess plateau based on water stress coefficient from FAO-56[J]. Journal of drainage and irrigation machinery engineering, 2013,31(3): 270-276.(in Chinese)
[6]刘玉洁,罗毅. FAO-56土壤水分胁迫指数计算方法试验研究[J]. 资源科学, 2010, 32(10): 1902-1909.
　　LIU Yujie, LUO Yi. Evaluation and improvement of the FAO-56 soil water stress coefficient approach using field experimental data[J].Resources science, 2010, 32(10): 1902-1909.(in Chinese)
[7]WANG J, ZHANG Y, GONG S, et al. Evapotranspiration, crop coefficient and yield for drip-irrigated winter wheat with straw mulching in North China Plain[J]. Field crops research, 2018, 217:218-228.
[8]王瑜,朱清科,赵维军,等. 陕北黄土区人工林地土壤水分的垂直变化规律[J]. 中国水土保持科学, 2015, 13(6): 54-60.
　　WANG Yu, ZHU Qingke, ZHAO Weijun, et al. Vertical distribution of soil moisture in artificial forests in loe-ss region of northern Shannxi[J]. Science of soil and water conservation, 2015, 13(6): 54-60.(in Chinese)
[9]贺军奇,任超. 不同灌水定额条件下土壤水分空间变化特征研究[J]. 节水灌溉, 2010(5): 28-31.
　　HE Junqi, REN Chao. Study on soil water space characteristics under different irrigation quota[J]. Water saving irrigation, 2010(5): 28-31.(in Chinese)
[10]丁日升. 干旱内陆区玉米田水热传输机理与蒸散发模型研究[D]. 北京:中国农业大学,2012.
[11]卢晓鹏, 段顺琼, 马显莹, 等. 单双作物系数法计算玉米需水量的对比研究[J].节水灌溉, 2012(11): 18-21.
　　LU Xiaopeng, DUAN Shunqiong, MA Xianying, et al. A comparative study between single crop coefficient method and double crop coefficient method in calculation of water requirement of maize[J]. Water saving irrigation,2012(11): 18-21.(in Chinese)
[12]CRAVE A, GASCUEL O C. The influence of topography on time and space distribution of soil surface water content[J]. Hydrological processes, 1997, 11(2): 203-210.