| Cite this article: | 李志,赵伟,赵明,等.苏北地区不同水文年冬小麦需水量与灌水量分析[J].灌溉排水学报,,():-. |
| LI Zhi,ZHAO Wei,ZHAO Ming,et al.苏北地区不同水文年冬小麦需水量与灌水量分析[J].灌溉排水学报,,():-. |
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| Crop Water Requirement and Irrigation Water Demand for Winter Wheat under Different Hydrologic Years in North of Jiangsu Province |
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LI Zhi1, ZHAO Wei1, ZHAO Ming1, ZHANG Juan1, MENG Yibin2, LI Yanfeng3
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1.Donghai Water Authority;2.China Telecom System Integration Co Ltd Beijing;3.China Institute of Water Resources and Hydropower Research
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| Abstract: |
| Based on the observation data of six standard weather stations from 1996 to 2015 in the north of Jiangsu Province, the crop water requirement and irrigation water demand during different crop growth stages under different hydrologic years were calculated. The results showed that annual average rainfall was 315 mm. The crop water requirement of winter wheat were 40 mm, 100 mm, 200 mm and 75 mm during early growth period, rapid development period, middle and late growth period. Furthermore, the irrigation water demand of winter wheat were 70 mm, 135 mm and 15 mm during rapid development period, middle and late growth period for dry years. For the normal years, the irrigation water demands were 70 mm and 81 mm during rapid development period and middle growth period. For the wet years, the irrigation water demands were 85 mm and 20 mm during middle and late growth period. |
| Key words: hydrologic;year, winter;wheat, crop;water requirement, Irrigation;water demand |
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