基于CROPWAT模型的宁南灌区春玉米非充分灌溉制度研究  

Research on Insufficient Irrigation Institution Based on CROPWAT Model by Spring Maize in Southern Ningxia

作　　者：金建新[1] 桂林国[1] 何进勤[1] 尹志荣[1] 李逸[2] 

机构地区：[1]宁夏农林科学院农业资源与环境研究所,银川750002 [2]兰州资源环境职业技术学院,兰州730021

出　　处：《西北农业学报》2016年第10期1465-1471,共7页Acta Agriculturae Boreali-occidentalis Sinica

基　　金："十二五"国家科技支撑计划课题(2014BAD14B006);宁夏回族自治区自然科学基金(NZ15127)~~

摘　　要：为探索宁南灌区春玉米非充分灌溉制度,对CROPWAT模型在非充分灌溉条件下对其腾发量和产量模拟的适应性进行评价,利用不同梯度灌水定额大田试验实测的腾发量和产量与CROPWAT模型模拟结果相比较。结果表明,春玉米不同生育时期腾发量与该阶段灌水定额呈正比关系,灌溉定额为150m3/hm2和630m3/hm2处理在苗期实测日耗水量分别为1.33mm/d、2.67mm/d,CROPWAT模型的模拟值也表现类似的结果,该日耗水量模拟值分别为1.42mm/d、2.89mm/d。前者实测产量为4 409kg/hm2,模拟值为3 937kg/hm2,两者相差10.7%,说明CROPWAT模型对于模拟不同条件下的玉米产量具有一定的可靠性。因此,CROPWAT模型在宁南灌区春玉米非充分灌溉制度的制定过程中具有一定的指导作用。Study on non-sufficient irrigation system of spring maize in southern Ningxia irrigation area, the evapotranspiration and yield simulation of CROPWAT model to evaluate adaptability for non-sufficient of spring maize in southern Ningxia irrigation area, using ETo and yield under different gradient irrigation quota in field test compared to CROPWAT model simulation results. The results showed that different growth stages of spring maize evapotranspiration proportional to the stage irrigation quota, irrigation quota treatment 150 m3/hm2 and 630 m3/hm2 water consumption were measured 1.33 mm/d and 2.67 mm/d in seedling, simulation result of CROPWAT model also showed similar results, water consumption analog value were 1.42 mm/d, 2.89 mm/d at the corresponding date. The former found yield was 4 409 kg/hm2, the simulation result was 3 937 kg/hm2, difference of 10.7M, which incicated that CROPWAT model had a certain reliability for simulating maize production under different conditions. Therefore, CROPWAT model has a guiding role in determination of non-sufficient irrigation system for spring maize in southern Ningxia irrigation area.

关 键 词：CROPWAT模型 宁南灌区 春玉米 非充分灌溉制度 

分 类 号：S513[农业科学—作物学]