Dataset of the 2015 Geo-Hazard Survey of the Yanzi River Basin, Upstream of the Jialing River
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摘要:
本数据集是依托2015年嘉陵江上游燕子河流域内崩塌、滑坡、泥石流和工程地质调查资料，根据中国地质调查局统一的标准和要求编制的。数据采集通过遥感解译、地面调查结合三维激光扫描、低空无人机航拍、综合地球物理勘探等工作手段获取。数据集包括滑坡数据223组、崩塌数据170组、泥石流数据44组，以及专门工程地质调查数据129组。数据集信息包括燕子河流域内崩塌、滑坡、泥石流等地质灾害的基本属性、产出的地质环境背景条件、发育特征与分布规律、孕灾的工程地质条件。通过野外数据现场采集、数据整理及校验、数据入库及审查等流程，以及完善的质量控制体系，确保了数据集的真实性、可靠性、准确性。该数据集全面提升了燕子河流域的地质灾害和工程地质调查精度，为该流域内崩塌、滑坡、泥石流的形成机理研究及易发性、危险性、风险性区划研究，提供了有效支撑，同时也为该流域地质灾害防治提供了可靠的基础数据。
Abstract:This dataset is prepared based on the data and information obtained from the survey of collapse, landslide, debris flow and engineering geology within the Yanzi River Basin, upstream of the Jialing River, in accordance with the unified standards and requirements of China Geological Survey (CGS). The data were acquired by remote sensing interpretation and surface survey as well as 3D laser scanning, low altitude aerial photography using UAV, and comprehensive geophysical exploration. The dataset contains 223 sets of landslide data, 170 sets of collapse data, 44 sets of debris flow data and 129 sets of data from specific geological engineering survey. The dataset covers the following information within the Yanzi River Basin:the basic attributes of geological hazards such as collapse, landslide and debris flow; geological environment background, development characteristics and distribution of the hazards; and engineering geological conditions inducing hazards. To guarantee the truth, accuracy and credibility of the dataset, processes such as field data acquisition, data collection and verification, data storage and review and a well-developed quality control system were adopted. Thus the dataset has comprehensively increased the accuracy of geological hazard knowledge and engineering geology survey in the Yanzi River Basin, providing an effective support for the study of the formation mechanism of collapse, landslide and debris flow and the study on zoning by susceptibility, hazard, and risk of these geological hazards. Furthermore, the dataset will provide reliable basic data necessary for the prevention and control of geological hazards within the basin.
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Table 2. Summary of Statistical Results Regarding Geological Hazard-affected Bodies and Geological Hazard Types in the Investigated Area
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