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| 农田灌溉对印度区域气候的影响模拟 | |
| 引用本文： | 毛慧琴,延晓冬,熊喆,田汉勤.农田灌溉对印度区域气候的影响模拟[J].生态学报,2011,31(4):1038-1045. |
| 作者姓名： | 毛慧琴 延晓冬 熊喆 田汉勤 |
| 作者单位： | 1. 中国科学院大气物理研究所全球变化东亚区域研究中心,北京100029;中国科学院研究生院,北京100039;环境保护部卫星环境应用中心,北京100094 2. 中国科学院大气物理研究所全球变化东亚区域研究中心,北京,100029 3. 美国奥本大学林业与野生生物学院,奥本AL36849,美国 |
| 基金项目： | 国家重点基础研究发展计划资助项目 (2006CB400500,,2010CB950903);国家自然科学基金资助项目(40675048);美国NASA土地覆盖和土地利用变化资助项目(NNX08AL73G_S01) |
| 摘 要： | 为满足人类对粮食的需求,全球灌溉农田面积迅速扩张,农田灌溉对区域气候的影响引起广泛地关注。利用区域环境系统集成模式(RIEMS2.0)和最新的土地利用变化资料,选取农田灌溉面积最大的印度区域作为研究区域,进行雨养农田和灌溉农田的对比试验,探讨农田灌溉对区域气候的影响。结果表明:(1)农田灌溉使得印度区域年平均气温降低1.4℃,年平均降水率增加0.35mm/d。农田灌溉对印度区域气候的影响存在明显的季节波动,季风前期及6月份该区域气候对下垫面变化的响应最为敏感;7-9月各气候要素变化较小。(2) 农田灌溉使得印度区域地表净辐射增加,且地表净辐射在潜热通量和感热通量之间的分配发生了较大的改变,潜热通量增加,感热通量减少;对地表起冷却作用;同时由于土壤湿度增加,蒸散作用增强,大气中水汽含量增加,潜热不稳定能量增加,导致对流性降水增加。 |
| 关 键 词： | 农田灌溉 区域气候 模拟 |
| 收稿时间： | 2010/1/11 0:00:00 |
| 修稿时间： | 2010/3/26 0:00:00 |
Modeled impact of irrigation on regional climate in India |
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| MAO Huiqin,YAN Xiaodong,XIONG Zhe and TIAN Hanqin.Modeled impact of irrigation on regional climate in India[J].Acta Ecologica Sinica,2011,31(4):1038-1045. | |
| Authors: | MAO Huiqin YAN Xiaodong XIONG Zhe and TIAN Hanqin |
| Institution: | Key Laboratory of Regional Climate-Environment Research for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China; Graduate University of the Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100039, China; Satellite Environment Center, Ministry of Environmental Protection, Beijing 100094, China;Key Laboratory of Regional Climate-Environment Research for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;Key Laboratory of Regional Climate-Environment Research for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;School of Forestry and Wildlife Science, Auburn University, Auburn, AL36849, USA |
| Abstract: | In order to provide food to more than six billion people,global irrigated croplands have expanded dramatically in recent decades.The role of irrigation in modifying the regional climate has been widely recognized in recent studies.India,one of the most intensely irrigated regions of the world,was selected as the simulation experiment region to determine the impact of irrigation on regional climate.Two 11-year(January,1990-December,2000) simulation experiments were conducted by using the Regional Integrated ... |
| Keywords: | agricultural irrigation regional climate simulation |
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