青藏高原1:25万重大工程扰动灾害数据（1985-2020）

本数据为青藏高原1：25万重大工程扰动灾害数据。对于灾害解译范围，线路工程（国道、高速、铁路、电网工程）及水电工程，以工程两侧第一分水岭为界；矿山、油田和口岸工程，以距离工程1km为界。工程扰动灾害划分为两类：①由工程建设诱发的滑坡、崩塌、泥石流灾害；②可能影响工程的自然灾害，规定上述解译范围内的所有自然灾害均属于第②类工程扰动灾害。其数据包含滑坡的位置、长、宽、高差、分布高程、成因类型、诱发因素、发生时间、岩性等要素及灾害相关工程及工程建设年份等。依据Google earth影像及1:50万地质图解译全区工程扰动灾害，共解译了6176个灾害点；主要利用Google earth进行扰动灾害解译，同时结合野外考察验证解译结果，利用ArcGIS生成灾害分布图件；数据来源于Google earth高分辨率影像，原始数据精度高，在灾害文件生成过程中严格按照解译规范，并有专人审查，数据质量可靠；依据所收集数据可进行研究区灾害风险分析，为已建工程的顺利运行和未建/在建线路工程的建设提供理论指导。

This dataset is a 1:250,000-scale major engineering-induced disturbance disaster dataset for the Qinghai-Tibet Plateau. Regarding the scope of disaster interpretation: for linear engineering (national highways, expressways, railways, power grid projects) and hydropower projects, the boundary is the first watershed on both sides of the project; for mining, oil field and port projects, the boundary is 1 km away from the project. Engineering-induced disturbance disasters are divided into two categories: ① Landslides, collapses, and debris flows induced by engineering construction; ② Natural disasters that may affect the project. It is stipulated that all natural disasters within the above-mentioned interpretation scope fall into Category ② engineering-induced disturbance disasters. The dataset includes elements such as the location, length, width, elevation difference, distribution elevation, genetic type, triggering factors, occurrence time, and lithology of landslides, as well as the relevant projects and their construction years. All engineering-induced disturbance disasters in the study area were interpreted based on Google Earth imagery and 1:500,000-scale geological maps, with a total of 6,176 disaster points identified. Google Earth was primarily used for disturbance disaster interpretation, combined with field surveys to verify the interpretation results, and ArcGIS was utilized to generate disaster distribution maps. The data is sourced from high-resolution Google Earth imagery, with high accuracy of the original dataset. During the production of disaster files, strict adherence to interpretation specifications was maintained, and professional reviews were conducted, ensuring reliable data quality. Based on the collected data, disaster risk analysis can be performed in the study area, providing theoretical guidance for the smooth operation of completed projects and the construction of unbuilt or under-construction linear engineering projects.

搜集汇总

背景与挑战

背景概述

该数据集覆盖青藏高原1985-2020年间的重大工程扰动灾害，以1:25万比例尺记录，包含6176个灾害点，详细描述了滑坡等灾害的位置、成因和工程关联信息。数据基于Google Earth影像解译和野外验证，质量可靠，适用于灾害风险分析和工程规划指导。