| 黄河河龙区间河流泥沙对相关重大事件与政策的响应 |
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| 引用本文： | 张世杰,焦菊英,李林育,黄晓华.黄河河龙区间河流泥沙对相关重大事件与政策的响应[J].地理科学,2009,29(6):905-910. |
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| 作者姓名： | 张世杰 焦菊英 李林育 黄晓华 |
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| 作者单位： | 1. 西北农林科技大学资源环境学院, 陕西 杨凌 712100;2. 中国科学院 水利部水土保持 研究所, 陕西 杨凌 712100;3. 珠江水利科学研究院, 广东广州 510611 |
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| 基金项目： | 国家重点基础研究发展计划项目“中国主要水蚀区土壤侵蚀过程与调控研究”课题“区域水土流失过程与趋势分析”(2007CB407203); 国家科技支撑计划项目课题“黄土高原水土流失综合防治技术研究”(2006BAD09B10)资助 |
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| 摘 要： | 利用径流-输沙量双累积曲线与单位降雨侵蚀力输沙量(输沙量负荷)的分析表明,河龙区间泥沙变化与相关重大事件与政策密切相关。“大开荒” 时期输沙量负荷平均值最大,是输沙量负荷多年平均值的1.8倍;“大跃进”、“农业学大寨”和“文革”时期的输沙量负荷均值也较大,为输沙量负荷多年平均值的1.4~1.5倍。改革开放后,输沙量负荷下降明显,输沙量负荷平均值较改革开放前减少了55.7%,特别是在1999年实施“退耕还林(草)”后,输沙量负荷平均值下降到整个时期的最小值,仅为输沙量负荷多年平均值的33.3%。
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| 关 键 词： | 河流泥沙 重大事件与政策 退耦指标 黄河河龙区间 |
| 收稿时间： | 2009-03-25 |
| 修稿时间： | 2009-07-06 |
Response of Sediment to Correlative Significant Events and Policies of Hekou-Longmen Region in Huanghe River basin |
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| ZHANG Shi-jie,JIAO Ju-ying,LI Lin-yu,HUANG Xiao-hua.Response of Sediment to Correlative Significant Events and Policies of Hekou-Longmen Region in Huanghe River basin[J].Scientia Geographica Sinica,2009,29(6):905-910. |
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| Authors: | ZHANG Shi-jie JIAO Ju-ying LI Lin-yu HUANG Xiao-hua |
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| Institution: | 1. Resource and Environment College, Northwest A & F University, Yangling, Shaanxi 712100;2. Institute of Soil and Water Conservation, Chinese Academy of Sciences & Ministry of Water Resources, Yangling, Shaanxi 712100;3. Pearl River Water Resources Scientific Research Institute, Guangzhou, Guangdong 510611 |
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| Abstract: | The analysis by using double-mass curve of cumulative runoff and sediment discharge and sediment decoupling indicator shows that,there is a significant relationship between the variation of sediment loads and correlative significant events and policies of Hekouzhen and Longmen region in the Huanghe(Yellow) River Basin.The maximum average sediment loads appeared in Reclaiming Wastland period,which is 1.8 times larger than the annual average sediment loads in 1951-2006.The average sediment loads are also larg... |
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| Keywords: | sediment significant events and policies decoupling indicator Hekouzhen-Longmen region in Huanghe River basin |
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