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7 山东省各生态区冬小麦季水资源利用系数
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Table 7 Water use efficiency of winter wheat 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—开花
Jointing-flowering stage | 开花—成熟
Flowering-maturing stage | | 鲁东ES | 降水量P (mm)
需水量ET (mm)
水资源利用系数WI | 89.5
255.2
| 24.5
184.3
0.5730 | 69.0
269.4
| | 鲁中CS | 降水量P (mm)
需水量ET (mm)
水资源利用系数WI | 86.2
216.9
| 23.8
156.7
0.6880 | 83.0
229.0
| | 鲁西北NS | 降水量P (mm)
需水量ET (mm)
水资源利用系数WI | 56.2
251.2
| 16.8
181.4
0.5062 | 55.0
265.2
| | 鲁西南SS | 降水量P (mm)
需水量ET (mm)
水资源利用系数WI | 90.9
218.2 | 30.1
157.6
0.6841 | 69.0
230.3 |
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