摘要
针对内蒙古寒区水稻种植需求大、稻田渗漏严重、灌溉水资源压力大等问题,在兴安盟扎赉特旗开展田间水稻灌溉试验,探究不同灌溉模式对寒区稻田水分渗漏的影响,建立稻田水量平衡模型对4种灌溉模式(淹水灌溉W0、间歇灌溉W1、蓄雨型间歇灌溉W2、无水层灌溉W3)下稻田逐日渗漏量和逐日水层深度作模拟。结果表明,全生育期渗漏量W0模式>W3模式>W1模式>W2模式,采取W1和W2模式可有效降低渗漏量。各灌溉模式下水稻作物系数(K_(c))变化趋势一致,均为生育前期和后期较小,生育中期较大,W0模式下水稻K_(c)略大于其他模式。不同灌溉模式下稻田水量平衡模型对稻田水层变化模拟精度为:验证组和率定组R^(2)分别达到0.80和0.85以上。可知,稻田水量平衡模型在4种灌溉模式下整体模拟精度良好,模拟值与实测值吻合度较高,可用于不同灌溉模式下内蒙古寒区稻田水层变化模拟。
Focusing on the problems of large demand for rice planting,huge seepage of rice field and high pressure of irrigation water resources in the cold region of Inner Mongolia,a field rice irrigation experiment was set up in Jalaid Banner of Xing’an League to explore the impact of different irrigation modes on seepage of the cold region rice fields.By establishing the rice field water balance model,the daily seepage and daily water layer depth of rice field under four irrigation modes(flooding irrigation W0,intermittent irrigation W1,rain storage intermittent irrigation W2 and non-water layer irrigation W3)were simulated.The results showed that the seepage in the whole rice growth period was W0 mode>W3mode>W1 mode>W2 mode.W1 and W2 modes could effectively reduce the seepage of rice fields.The variation trend of rice crop coefficient(Kc)in each irrigation mode was basically the same,which was smaller in the early and late growth stages,larger in the middle growth stage,and the Kc value in W0mode was slightly larger than that of other modes.The simulation accuracy of rice field water balance model under different irrigation modes was that the model judgment coefficient(R^(2))of calibration group and validation group was more than 0.85 and 0.80,respectively.It was concluded that the rice field water balance model had good accuracy and practicability in the four irrigation modes.It could be used to simulate the water layer change of rice field in the cold region of Inner Mongolia under different irrigation modes.
作者
胡旭铧
徐阳
朱福民
肇志强
黄鹏
奴尔力·阿衣托汗
崔远来
罗玉峰
HU Xuhua;XU Yang;ZHU Fumin;ZHAO Zhiqiang;HUANG Peng;AYTUHAN·Nurale;CUI Yuanlai;LUO Yufeng(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China;Inner Mongolian Research Institute on Hydraulic Sciences,Hohhot 010060,China;Xing'an League Flood Comtrol and Drought Relief Dispatching Center,Xing'an League Inner Mongolia 137400,China;Water Conservancy Bureau of Jalaid Banner,Xing'an League Inner Mongolia 137600,China)
出处
《东北农业大学学报》
CAS
CSCD
北大核心
2022年第9期43-49,79,共8页
Journal of Northeast Agricultural University
基金
国家自然科学基金项目(51979201,51779187)
内蒙古水利科技项目(NSK 2021-01)。
关键词
水稻灌溉模式
稻田渗漏
水量平衡模型
精度验证
rice irrigation mode
rice field seepage
water balance model
accuracy verification
作者简介
胡旭铧(1998-),女,硕士研究生,研究方向为节水灌溉理论与技术研究及应用。E-mail:huxuhua@whu.edu.cn;通讯作者:罗玉峰,教授,博士,博士生导师,研究方向为节水灌溉理论与技术。E-mail:yfluo@whu.edu.cn。
