| 雅鲁藏布江曲水-桑日段泥石流发育特征及其危害 |
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| 引用本文： | 陈兴长,游勇,柳金峰.雅鲁藏布江曲水-桑日段泥石流发育特征及其危害[J].四川建材学院学报,2014(2):40-45,71. |
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| 作者姓名： | 陈兴长 游勇 柳金峰 |
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| 作者单位： | [1]西南科技大学环境与资源学院,四川绵阳621010 [2]中国科学院成都山地灾害与环境研究所,四川成都610041 |
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| 基金项目： | 中国科学院重点部署项目（KZZD-EW-05-01-04）; 国家科技支撑计划项目（2012BAC06B02）; 国家自然基科学金项目（41372301）致谢在野外考察期间,得到了陈晓清研究员和程尊兰研究员的大力支持和帮助.一起参加野外考察的还有刘健康、黄凯、时亮和张怀珍等,在此一并表示感谢! |
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| 摘 要： | 在遥感解译、野外调查和实地勘测的基础上,系统研究了雅鲁藏布江曲水-桑日段泥石流的发育特征及其危害,提出了相应的防治对策。研究表明,研究区泥石流的分布密度大,性质单一,全部为稀性泥石流;泥石流沟面积普遍较小,沟床坡降大,汇流条件好;形成的堆积扇规模宏大,多呈混杂堆积。泥石流的危害对象主要为农田和道路等基础设施,危害方式以冲刷和淤埋为主。建议控制人类不合理的生产和工程活动,针对危害大的泥石流沟因害设防,进行综合治理。
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| 关 键 词： | 泥石流 发育特征 雅鲁藏布江 西藏自治区 |
Development Characteristics and Hazards of Debris Flows Along Qushui-Sangri Section of Yarlung Tsangpo River,Tibet,China |
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| Authors: | CHEN Xing-chang YOU Yong LIU Jin-feng |
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| Affiliation: | 1. School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China ; 2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China) |
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| Abstract: | Development characteristics and hazards of debris flows were systematically studied along Qushui-Sangri Section of Yarlung Tsangpo river based on remote sensing interpretation and field surveys,and the countermeasures for the debris flows mitigation were also proposed. Results show that in the study area,debris flows are characterized by high distribution density,single nature with only turbulent ones,generally small areas of flow gully,big gully gradients,large sizes of debris flow fans with a large-scale mixed deposits. The harming objects of debris flows are mainly infrastructures such as farmlands and roads and damaging ways are washing and burying. It was suggested that the unreasonable human engineering activities should be controlled and the preventive measures for severely harmful debris flows should be comprehensively conducted. |
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| Keywords: | Debris flows Development characteristics Yarlung Tsangpo river Tibet |
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