非充分灌溉研究进展及展望

我国非充分灌溉研究工作始于 80年代初。最早和灌溉关键水当属非充分灌溉问题。Jensen模型在国内应用使非充分灌溉研究从定性阶段提高到定量阶段。鉴于 Jensen模型中敏感指数在空间的不稳定性 ,当前应抓紧该模型在各地的研究 ,确定每一地区的各种作物的敏感指数值。尽快恢复全国灌溉试验网 ,组织全国的联合试验 ,争取在 3～ 5年内完全确定水 -作物模型的有关参数 ,为全国的非充分灌溉工作开展咨询指导

Present Situation and Future Development of Deficit Irrigation Research in China

Non full irrigation researches started in early 80's of last century in China. Key stage irrigation can be considered as one of non full irrigation. Introduction and improvement of Jensen model improved non full irrigation research in China from qualitative stage to quantitative stage. The sensitive indexes in Jensen model are variable timely and spatially. So, researches should be conducted to determine suitable sensitive index values for all representative areas nationwide. It is necessary to restore national irrigation experiment network and to conduct not full irrigation experiment cooperatively nationwide for determining relevant parameters in crop water models in 3 to 5 years.