【摘要】 采用水量平衡法实测和Penman-Menteith模型模拟对沈阳地区在采用新兴的高产品种情况下的作物需水量进行对比研究,从而验证了彭曼模型在沈阳地区应用的有效性,并为沈阳地区作物需水情况及确定作物灌溉制度的进一步研究提供基础资料。更多还原

【Abstract】 Maize is primary crop in the northeast region of China.To understand crop water requirement of these crops,crop water requirement of maize in Shenyang of the northeast region is studied with water balance method and Penman-Menteith simulation model.The result of comparative research show the simulated and measured values of crop water requirement are very close,and the relative error and absolute error are quite small.The precision of crop water requirement model of Shenyang region is high.And the validity of the model for prediction of crop water requirement in this region is tested.Currently,the research on the crop requirement is not enough.Therefore,the study can provide basic data for the research in the future.更多还原