| 白龙江流域中上游第四纪沉积物的发育特征及其灾害效应 |
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| 引用本文： | 陈宗良,叶振南,王志宏,王高峰,高幼龙,田运涛.白龙江流域中上游第四纪沉积物的发育特征及其灾害效应[J].水文地质工程地质,2019,0(2):29-29. |
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| 作者姓名： | 陈宗良 叶振南 王志宏 王高峰 高幼龙 田运涛 |
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| 作者单位： | 中国地质调查局水文地质环境地质调查中心，河北 保定 071051 |
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| 基金项目： | 中国地质调查局地质调查项目“陇南白龙江流域地质灾害调查”（DD20160281） |
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| 摘 要： | 白龙江流域是我国四大地质灾害高发区之一，也是全国17个地质灾害重点防治区之一。第四纪沉积物的广泛分布为地质灾害提供了丰富的物质基础。本文基于遥感和GIS技术，结合影像特征和野外实际调查，建立了研究区第四纪成因类型（5大类11亚类）的解译标志；运用所建立的解译标志，对研究区进行了精细解译，新增第四纪残积物、坡积物、泥石流堆积和人工堆积等8个沉积亚类，补充和完善了滑坡堆积体和崩积物的面域数据，共解译第四纪沉积物面积444.7 km2，较前人研究资料扩展了380.4 km2；研究区上游段主要受地形地貌因素影响，第四纪沉积物沿白龙江主河道及其支流分布，中游段主要受地质构造控制，第四纪沉积物沿活动断层呈条带状分布，下游段主要受地层岩性影响，第四纪沉积物呈片状分布；第四纪沉积物灾害效应主要表现为崩滑效应和对泥石流的补给效应。本文研究成果对研究区区域地质灾害调查和风险评价提供了技术支撑。
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| 关 键 词： | 高分辨率遥感 地理信息系统 白龙江流域 第四纪沉积物 黄土 地质灾害 |
| 收稿时间： | 2018-09-12 |
| 修稿时间： | 2018-11-22 |
Development characteristics and disaster effect of the Quaternary sediments in the middle and upper reaches of the Bailongiang River Basin |
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| CHEN Zongliang,YE Zhennan,WANG Zhihong,WANG Gaofeng,GAO Youlong,TIAN Yuntao.Development characteristics and disaster effect of the Quaternary sediments in the middle and upper reaches of the Bailongiang River Basin[J].Hydrogeology and Engineering Geology,2019,0(2):29-29. |
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| Authors: | CHEN Zongliang YE Zhennan WANG Zhihong WANG Gaofeng GAO Youlong TIAN Yuntao |
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| Affiliation: | Center for Hydrogeology and Environmental Geology Survey, China Geology Survey, Baoding, Hebei071051, China |
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| Abstract: | Bailongjiang Basin, as one of Chinas four High-incident Areas of geologic disaster and one of Chinas seventeen major prevention areas of geologic disaster, has widespread distribution of Quaternary Sediments which provides a rich material basis for geological hazards. This Article, based on remote sensing and GIS technology, combined with the feature of image and field survey, has established the interpretation signs for the genetic types of the Quaternary Sediments (5 categories and 11 subcategories) in the research area. Further with the interpretation signs, this Article has carried the analysis on the research area more delicately, details are inclusive of: Eight sedimentary subcategories have been added, including but not limited to quaternary residual, slope deposits, debris flow deposits and artificial deposits; the surface area data of landslide deposits and collapses has been complemented, total 444.7 km2 of the Quaternary Sediments has been researched, which is 380.4 km2 larger than previous research area; Founded that: as mainly affected by topographic and geomorphological, Quaternary Sediments in the upper reaches of the research area distribute along the main channel and the tributaries of the Bailongjiang; and as mainly affected by geological structures, Quaternary Sediments in the middle reaches of the research area are zonally distribute along the active faults; and as mainly affected by stratigraphic lithology, Quaternary Sediments in the lower reaches patchily distribute; and the Quaternary Sediment hazard effects are mainly manifested in landslides and debris flow recharge effects. The research results of this Article provide technical support for the regional geological hazard investigation and risk assessment in the research area. |
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