冬小麦-夏玉米周年农田资源高效利用限制因素分析
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刘肖瑜,张豆豆,焦进宇,陈国庆,李勇
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Analysis on Limiting Factors of Efficient Utilization of Winter Wheat and Summer Maize Farmland Resources
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LIU XiaoYu,ZHANG DouDou,JIAO JinYu,CHEN GuoQing,LI Yong
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表8 山东省各生态区夏玉米季水资源利用系数
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Table 8 Water use efficiency of summer maize season in each ecological region of Shandong province
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生态区
Ecological region | 参数
Parameter | 生育阶段Growth stage | 播种—拔节
Sowing-jointing stage | 拔节—吐丝
Jointing-silking stage | 吐丝—成熟
Silking-maturing stage | | 鲁东ES | 降水量P (mm)
需水量ET (mm) | 117.0
125.0 | 145.0
264.0 | 200.0
305.8 | | 水资源利用系数WI | 0.7131 | | 鲁中CS | 降水量P (mm)
需水量ET (mm) | 161.0
116.0 | 108.0
245.0 | 194.0
283.8 | | 水资源利用系数WI | 0.8374 | | 鲁西北NS | 降水量P (mm)
需水量ET (mm) | 137.0
127.0 | 113.0
268.0 | 204.0
310.2 | | 水资源利用系数WI | 0.7193 | | 鲁西南SS | 降水量P (mm)
需水量ET (mm) | 198.0
120.0 | 107.0
253.0 | 188.0
293.3 | | 水资源利用系数WI | 0.9046 |
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