太行山前平原不同灌溉方式对冬小麦耗水规律及产量的影响

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Effects of different irrigation modes on water consumption and yield of winter wheat in the piedmont plain of the Taihang Mountain

WANG Xiaoyan'， YIN Dechao， WANG Yushan， CHEN Li （1 Center for Hydrogeology and Environmental Geology Survey， China Geological Survey，Tianjin 300309，China; 2 Baoding Irrigation Experiment Station， Baoding O710oo， China）

Abstract： 【Objective】To study the effects of different irrigation modes on water consumption and yield of winter wheat in the sloping plain in front of the Taihang Mountain， and provide a reference for optimizing the appropriate agricultural water-saving irigation mode in the study area. 【Method】 Three irigation modes of shallow buried drip irrigation （SY1，SY2， SY3），surface drip irrigation （SY4，SY5， SY6） and pipe irrigation （SY7， SY8， SY9） and different irrigation quotas （the irigation levels for drip irrigation were set at 60%ETC ， 80%ETC and 100%ETC ， the irrigation levels for pipe irrigation were set at 80%ETC， 100%ETC and 120%ETC ， ETC was crop irigation requirement） were combined and compared. The irrigation infiltration， meteorology， evaporation and soil water content at different depths in different experimental plots were monitored，and the distribution characteristics of soil water content， crop growth， water consumption and yield under different irrigation modes were compared and analyzed. 【Result】 The water consumption of winter wheat was shalow buried drip irigation3⋅hm-2 ， respectively. Shallow buried drip irrigation mode SY1 yielded higher than surface drip irrigation mode SY5，demonstrating comprehensive advantages in both water consumption and crop yield. Therefore， before further optimizing water-saving techniques， shallow buried drip irigation mode SYl was recommended as an optimal water-saving irigation mode for the study area. 【Conclusion】 The water-saving irrigation mode SY1 effectively reduces underground water extraction， alleviates the current situation ofregional underground water overexploitation， and can provide data support for the next demonstration and promotion of agricultural water-saving technology.

Keywords： Water saving irrigation; Shallow buried drip irigation; Water consumption rule; Underground water overexploitation; Piedmont plain of the Taihang Mountain

华北平原西部太行山前冲洪积平原区人口密度大，水资源短缺，自20世纪70年代以来地下水长期处于超采状态[]。（剩余10408字）