| 渭河陕西段水情对气候变化的响应 |
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| 引用本文： | 万红莲,张英. 渭河陕西段水情对气候变化的响应[J]. 江西农业学报, 2012, 24(1): 169-172,194 |
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| 作者姓名： | 万红莲 张英 |
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| 作者单位： | 1. 宝鸡文理学院灾害监测与机理模拟陕西省重点实验室,陕西宝鸡,721013
2. 宝鸡文理学院灾害监测与机理模拟陕西省重点实验室,陕西宝鸡721013;兰州大学西部环境教育部重点实验室,甘肃兰州730000 |
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| 基金项目： | 陕西省教育厅重点实验室项目，宝鸡文理学院院级重点项目，宝鸡文理学院自然地理学陕西省重点学科基金 |
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| 摘 要： | 根据20世纪中期以来渭河降水、径流、泥沙、洪水等方面的资料,对陕西省渭河的水情动态变化进行了统计分析,并对水情变化的主要原因进行了探讨,以揭示其对环境因素的响应关系。结果表明,渭河流域水沙输送主要集中于降水量较大的汛期,年内分布相对集中;年际变化较大,20世纪50～90年代期间径流量和输沙量总体均呈下降趋势,90年代径流量下降明显;洪水演变出现新的特点;流域径流量、输沙量、洪水等水情要素与气候变化之间存在密切的响应关系。
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| 关 键 词： | 渭河 水情 气候变化 响应 |
Response of Water Situation of Weihe River Reach in Shaanxi to Climate Change |
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| WAN Hong-lian , ZHANG Ying. Response of Water Situation of Weihe River Reach in Shaanxi to Climate Change[J]. Acta Agriculturae Jiangxi, 2012, 24(1): 169-172,194 |
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| Authors: | WAN Hong-lian ZHANG Ying |
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| Affiliation: | 1,2(1.Key Laboratory of Disaster Survey & Mechanism Simulation of Shaanxi Province,Baoji University of Arts and Sciences,Baoji 721013,China;2.Key Laboratory of West China’s Environmental System,Lanzhou University,Lanzhou 730000,China) |
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| Abstract: | According to the data of rainfall,runoff,sediment and flood of the Weihe River since the middle 20th century,the paper analyzed the dynamic changes in the water situation of the Weihe River reach in Shaanxi province,and explored the main reasons of water situation changes,for the purpose of opening out the responses of water situation changes to environmental factors.The results indicated that the runoff and sediment transport mainly occurred and distributed in the flood season with high rainfall.On the whole,the runoff and sediment transport declined from 1950s to 1990s,and showed large inter-annual variations.In 1990s,the runoff declined most.In addition,the flood evolution showed a new trend.The water situation factors(runoff,sediment and flood frequency) and environment factors(temperature,rainfall) were closely related to each other. |
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| Keywords: | Weihe River Water situation Climate change Response |
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