| 东北地区融雪期径流及产沙特征分析 |
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| 引用本文： | 焦剑,谢云,林燕,赵登峰.东北地区融雪期径流及产沙特征分析[J].地理研究,2009,28(2):333-344. |
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| 作者姓名： | 焦剑 谢云 林燕 赵登峰 |
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| 作者单位： | 1. 北京师范大学地理学与遥感科学学院,北京师范大学地表过程与资源生态国家重点实验室,北京,100875
2. 哈尔滨市水务局,哈尔滨,150001 |
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| 基金项目： | 国家重点基础研究发展规划(973计划)，国家自然科学基金面上项目 |
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| 摘 要： | 严重的水土流失已威胁到东北地区的土地资源,融雪径流及其造成的侵蚀作为该地区水土流失的重要组成部分,但相关研究较少。本文利用全区93个气象站降水资料,分析了东北地区降雪与积雪的基本特征。利用27个典型流域水文站径流泥沙资料,分析了融雪期内径流与产沙特征。结果表明:东北各地雪期长度为5~8个月,自南向北逐渐延长。年降雪量占年降水总量的比例多在7~25％,由此形成的融雪期径流深占全年径流深比例达13.3~24.9％,融雪期输沙模数占全年输沙模数比例达5.8~27.7％。融雪期流域输沙模数受地貌影响十分显著:丘陵漫岗区降雪量和径流深均低于山区,但输沙模数平均为山区的2.9倍。融雪输沙模数与流域面积有十分显著的幂函数递减关系。为揭示融雪侵蚀影响因素及其作用机理,今后应加强融雪期内流域侵蚀及产沙监测。
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| 关 键 词： | 降雪与积雪 融雪期 融雪径流 融雪输沙模数 东北地区 |
| 收稿时间： | 2008-01-26 |
| 修稿时间： | 2008-12-23 |
Study on snowmelt runoff and sediment yields in Northeast China |
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| JIAO Jian,XIE Yun,LIN Yan,ZHAO Deng-feng.Study on snowmelt runoff and sediment yields in Northeast China[J].Geographical Research,2009,28(2):333-344. |
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| Authors: | JIAO Jian XIE Yun LIN Yan ZHAO Deng-feng |
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| Institution: | 1.School of Geography;State Key Laboratory of Earth Surface Processes and Resource Ecology;Beijing Normal University;Beijing 100875;China;2.Heilongjiang Water Resource Bureau;Harbin 150001;China |
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| Abstract: | Severe soil erosion has threatened land resources in Northeast China.Distributed at mid-and high latitudes,soil loss caused by snowmelt runoff plays a main part in soil erosion in this region.But there is little research on it.In this study,the characteristics of snowfall and snow cover were studied by using daily precipitation records from 93 climate stations,and the characteristics of snowmelt runoff and sediment yields were analyzed based on daily runoff and sediment yield data from 27 typical hydrologic... |
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| Keywords: | snowfall and snow cover snowmelt season snowmelt runoff snowmelt sediment transport modulus Northeast China |
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