| 渭干河平原绿洲生态用水量初步估算 |
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| 引用本文： | 胡顺军,康绍忠,宋郁东.渭干河平原绿洲生态用水量初步估算[J].水科学进展,2004,15(3):346-351. |
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| 作者姓名： | 胡顺军 康绍忠 宋郁东 |
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| 作者单位： | 1.中国科学院新疆生态与地理研究所, 新疆乌鲁木齐, 830011; |
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| 基金项目： | 国家重点基础研究发展计划(973)资助项目(G1999043506)，中国科学院"西部之光"资助项目~~ |
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| 摘 要： | 根据监测资料,采用蒸发系数法对渭干河平原绿洲各种土地类型的年耗水量进行了估算,并分析了其生态用水量。结果表明:(1)农林地的年耗水量为947～1026mm,草滩洼地的年耗水量为791～845mm,有稀疏植被荒地的年耗水量为308～415mm,未被利用土地、沙丘的年耗水量为137～172mm;(2)农林地的蒸发系数为0.83～0.86,草滩、洼地的蒸发系数为0.68～0.72,有稀疏植被荒地的蒸发系数为0.27～0.35;未被利用土地、沙丘的蒸发系数为0.12～0.15;(3)年生态用水量为11.18～13.47亿m3,占总收入水量(地下水入流、灌溉引水和降水量)的45%～49%。该结论可为西北地区平原绿洲水资源的合理配置提供科学依据。
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| 关 键 词： | 渭干河 平原绿洲 生态用水 蒸发系数 |
| 文章编号： | 1001-6791(2004)03-0346-06 |
| 收稿时间： | 2003-01-20 |
| 修稿时间： | 2003年1月20日 |
Primary estimation of ecological water use in Weiganhe river plain oasis |
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| HU Shun-jun.Primary estimation of ecological water use in Weiganhe river plain oasis[J].Advances in Water Science,2004,15(3):346-351. |
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| Authors: | HU Shun-jun |
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| Affiliation: | 1.Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;2.Key Laboratory for Agricultural Soil and Water Engineering in Arid Area of Ministry of Education, Yangling 712100, China |
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| Abstract: | Based on the measured data,annual water consumptions are estimated for different land useing types by applying evaporation coefficient method,and the ecological water use is analyzed in Weiganhe river plain oasis The results show that: (1)The water consumption for farm field and forest land,grassy marsh land and low lying land,waste land with sparse vege tations,waste land without vegetat ions are 947-1 026 mm,791-845 mm,308-415 mm,137-172 mm respectively; (2)The evaporation coefficient are 0.83-0.86,0.68-0.72,0.27-0.35,0.12-0.15 respectively;And(3)the amount of ecological water use is 11.8 to 13.7×108m3,which accounts for 45 to 49% of sum of irrigated water,groundwater recharge and precipitat ion The results can provide the important scient ific basis for rational water resources allocation in the plain oasis is northwestern China. |
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| Keywords: | Weiganhe river plain oasis ecological water use evaporation coefficient |
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