黄淮海平原雨养条件下冬小麦水分胁迫分析

doi:10.11820/dlkxjz.2010.04.006

Abstract

Abstract:

Water stress is one of the main factors that affect the crop growth. Water stress can induce agricultural drought, and decrease the yield. Analysis on the water stress under rain-fed condition can reflect the influence of local climate and soil on the crop growth. It is very helpful for the agricultural drought management and improving the water use efficiency (WUE). This study simulated the growth of winter wheat under rain-fed condition using EPIC (Environmental Policy Integrated Climate Model) crop growth model. The temporal and spatial pattern of water stress was analyzed. It was found that the rainfall in this area could not afford the demand of the crop growth. The water stress in the later period of winter wheat growth season was very serious, especially in the third 10 days of May when the frequency of the severe water stress was up to 48.2%. Through the contrast between regions, the Hebei-Shandong-Henan low-lying plain and the agro-forestry hilly region in Shandong were worse than the other two regions in the study period.

Key words: crop growth model, Huang-Huai-Hai Plain, rain-fed, water stress

LIU Ming,WU Jianjun,LV Aifeng,ZHAO Lin,HE Bin. The Water Stress of Winter Wheat in Huang-Huai-Hai Plain of China under Rain-fed Condition[J].PROGRESS IN GEOGRAPHY, 2010, 29(4): 427-432.

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The Water Stress of Winter Wheat in Huang-Huai-Hai Plain of China under Rain-fed Condition

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