Analysis on Spatial and Temporal Variations of Maize Irrigation Water Requirement in Jilin Province

3rd International Conference on Energy Equipment Science and Engineering

Han, N.N.^1,2 ; Wang, Y.R.^1,2 ; Zhou, Q.Y.^1,2 ; Li, S.M.^1,2 ; Ye, L.T.^1,2 ; Jin, J.H.^1,2

Department of Hydraulic Engineering, Tianjin Agricultural University, Tianjin

300384, China^1

Tianjin Agricultural Water Conservancy Technology Engineering Center, Tianjin

300384, China^2

关键词: Crop coefficient;    Irrigation water requirements;    Irrigation waters;    Meteorological data;    Meteorological station;    Regional differences;    Spatial and temporal variation;    Variation characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012024/pdf
DOI  :  10.1088/1755-1315/128/1/012024

来源: IOP

【 摘 要 】

Based on the location of meteorological stations in Jilin Province, seven meteorological stations were selected. They are Fuyu, Yanji, Linjiang, Ji'an, Meihekou, Tongyu and Changchun. These meteorological data are from the year of 1984 to 2012. The meteorological data are analyzed by using crop coefficient method and water balance principle. The irrigation water requirement during the growth period of Maize in Jilin province was analyzed. The results show that: the average irrigation water requirement is 166mm in the middle of the dry year (75%) and in the drought year (90%).The variation range of irrigation water demand in each weather station is from 0 mm to 375mm. Regional differences are obvious. There is no obvious difference in irrigation water requirement in time. The variation characteristics of irrigation water demand of maize are increasing from east to west.