灌溉排水学报2024，Vol.43Issue(7)：39-47,9.DOI:10.13522/j.cnki.ggps.2024122
中国西北旱区加工番茄需水量时空变异特征研究
Spatial and temporal variability of irrigation water demand of processing tomato in the Northwest Arid Region of China
摘要
Abstract
[Objective]Study on the spatial and temporal variability in water demand of processing tomato in the Northwest Arid Region of China is very essential for local agricultural water management and optimal allocation.[Method]Based on the meteorological data measured from 40 weather stations in 1985-2014 within the study region,the evapotranspiration(ETc)and irrigation water demand(Ic)were calculated for the processing tomato,using the modified crop coefficients and water balance equation.[Result]Spatially from the west to the east,the ETc and Ic of the processing tomato during different growing stages increased first and then decreased,with its value peaking in eastern Xinjiang,Gansu and Northwestern Ningxia and Inner Mongolia.The annual average ETc during the growing period of the tomato in Xinjiang,Gansu,Ningxia and Inner Mongolia were 460.98-1 202.69 mm,591.14-749.92 mm,and 530.63-878.66 mm,respectively.Meanwhile,the annual average Ic in these three regions were 187.21-1 180.98 mm,508.69-702.97 mm,and 354.94-851.14 mm,respectively.On the time scale of 30 years,the ETc and Ic in tomato growing period increased at a rate ranging from 0 to 30.0 mm/10 a.In particular,the ETc in Xinjiang and Gansu showed a significant increase,while the ETc in Ningxia and Inner Mongolia increased insignificantly.Additionally,the trend of average Ic in Ningxia and Inner Mongolia was not obvious.[Conclusion]The ETc and Ic over whole growing period of processing tomato in the study region showed strong spatial and temporal variability,and there is an urgent need to implement water-saving irrigation technology and strengthen the optimal allocation of water resources under the environment of climate change.关键词
灌溉需水量/加工番茄/实际腾发量/时空变异特征Key words
irrigation water demand/processing tomato/evapotranspiration/spatial and temporal variability分类
农业科技引用本文复制引用
郑茹月,任前,谢琪,谭君位,黄冠华..中国西北旱区加工番茄需水量时空变异特征研究[J].灌溉排水学报,2024,43(7):39-47,9.基金项目
"科技兴蒙"行动重点专项项目(NMKJXM202105,NMKJXM202004) （NMKJXM202105,NMKJXM202004）
国家自然科学基金项目(51909004) （51909004）
