| 东北典型黑土区乌裕尔河中游泥沙输移月年时间尺度特征 |
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| 引用本文： | 方海燕,蔡强国,李秋艳. 东北典型黑土区乌裕尔河中游泥沙输移月年时间尺度特征[J]. 泥沙研究, 2009, 0(2) |
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| 作者姓名： | 方海燕 蔡强国 李秋艳 |
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| 作者单位： | 中国科学院,地理科学与资源研究所,陆地水循环及地表过程重点实验室,北京,100101;中国农业大学,水利与土木工程学院,北京,100083 |
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| 基金项目： | 国家重点基础研究发展规划(973计划)，院长奖获得者科研启动专项基金 |
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| 摘 要： | 水土流失是土壤侵蚀、泥沙输移和沉积的统一体.东北黑土区有关河流泥沙输移时间尺度的研究有助于更好的揭示黑土区土壤侵蚀规律和泥沙运移机制.本文以典型黑土区乌裕尔河中游依安水文站为研究对象,利用该站1957-1989年33年月、年时间尺度上的水沙数据,对黑土区河流泥沙输移特征进行了分析.研究认为,在月时间尺度上,水沙关系松散,径流量对泥沙量的决定系数为53.8%;年内月泥沙量存在着两个峰值,分别发生在春季的5月份和夏季的7月份,流域泥沙存在"存储-释放"的过程.流域泥沙量年际尺度差异大,受人类活动的影响,1957年以来,泥沙量和径流产沙能力呈现逐年增加的趋势.
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| 关 键 词： | 典型黑土区 乌裕尔河 泥沙输移 时间动态 |
Sediment transport characteristics at the monthly and yearly scales in midstream of Wuyuer River in the typical black soil region of Northeastern China |
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| FANG Hai-yan,CAI Qiang-guo,LI Qiu-yan. Sediment transport characteristics at the monthly and yearly scales in midstream of Wuyuer River in the typical black soil region of Northeastern China[J]. Journal of Sediment Research, 2009, 0(2) |
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| Authors: | FANG Hai-yan CAI Qiang-guo LI Qiu-yan |
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| Affiliation: | 1.Institute of Geographical Sciences and Natural Resources Research;Key Laboratory of Water Cycle & Related Land Surface Processes;CAS;Beijing 100101;China;2.College of Water Conservancy and Civil Engineering;China Agricultural University;Beijing 100083;China |
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| Abstract: | Soil and water loss is a whole system composed of soil erosion,sediment transport and deposition.Study on sediment transport dynamics of black soil in Northeastern China can help us deeply understand soil erosion and sediment transport mechanism in black soil regions.Yian hydrologic station,located midstream Wuyuer River within typical black soil region,was selected to study sediment dynamics characteristics for black soil region based on the 33-year(1957-1989) runoff and sediment data at the monthly and ye... |
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| Keywords: | typical black soil region Wuyuer River sediment transport temporal dynamics |
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