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干旱区地理 ›› 2026, Vol. 49 ›› Issue (4): 816-829.doi: 10.12118/j.issn.1000-6060.2025.238 cstr: 32274.14.ALG2025238

• 灾害研究 • 上一篇    下一篇

适用于流域尺度精准灾害管理的综合风险区划

张靖欣1(), 周磊1(), 胡森苗1, 于杨1, 刘京会2, 武建军3   

  1. 1 北京建筑大学测绘与城市空间学院北京 102616
    2 防灾科技学院应急技术与管理学院北京 101601
    3 北京师范大学地理科学学部北京 100875
  • 收稿日期:2025-05-06 修回日期:2025-05-26 出版日期:2026-04-25 发布日期:2026-04-28
  • 通讯作者: 周磊(1983-),男,博士,教授,主要从事灾害与环境遥感等方面的研究. E-mail: zhoulei@bucea.edu.cn
  • 作者简介:张靖欣(1999-),女,硕士研究生,主要从事灾害风险评估等方面的研究. E-mail: 2108160323005@stu.bucea.edu.cn
  • 基金资助:
    第三次新疆综合科学考察项目(2022xjkk0600);国家自然科学基金项目(42077439)

Integrated risk zoning for accurate disaster management at the watershed scale

ZHANG Jingxin1(), ZHOU Lei1(), HU Senmiao1, YU Yang1, LIU Jinghui2, WU Jianjun3   

  1. 1 School of Surveying and Mapping and Urban Spatial Informatics, Beijing University of Civil Engineering and Architecture, Beijing 102616, China
    2 School of Emergency Technology and Management, Institute of Disaster Prevention, Beijing 101601, China
    3 Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China
  • Received:2025-05-06 Revised:2025-05-26 Published:2026-04-25 Online:2026-04-28

摘要:

风险区划作为灾害风险管理的关键手段,对于精准识别灾害风险、科学调配防灾资源具有重要意义。基于自然地理数据、灾情统计数据以及科考调查数据,按照“孕灾环境敏感性-自然灾害影响显著性-灾害风险等级”3级体系构建风险区划模型,在典型流域新疆伊犁河流域以1 km格网为最小单元针对流域内主要灾害类型进行综合风险区划。通过选取3类因子对应的12个评价指标,划分出3个孕灾环境敏感区,9个自然灾害显著影响区以及26个综合风险区,并从实测数据及调查问卷2方面验证了结果的准确性。结果表明:(1) 伊犁河流域内灾害综合风险分布呈现东高西低的趋势,具有显著的空间差异性。(2) 流域内多种灾害频发,主要涉及到的灾害类型包含洪涝、地质灾害、干旱以及雪灾等。(3) 区划结果在整体空间分布以及典型灾害类型表征上与历史数据及相关研究具有一致性。区别于全国灾害风险普查的相对宏观性,聚焦流域尺度,结合独特的地质构造、气候特征等孕灾环境,深度剖析特定的灾害类型,构建适配当地实际情况的风险区划体系,便于切实提升当地灾害风险管理的精准性与有效性,保障地区内生态经济可持续发展。

关键词: 流域尺度, 灾害管理, 区划, 灾害综合风险, 伊犁河流域

Abstract:

Risk zoning, a key method in disaster risk management, plays a significant role in the accurate identification of disaster risks and scientific allocation of disaster prevention resources. Accordingly, a risk zoning model was constructed employing a three-level system of “disaster-prone environmental sensitivity, natural disaster impact significance, and disaster risk levels” and applied to natural geographical data, disaster statistics, and field survey data for the Ili River Basin in Xinjiang, a typical watershed, using a 1 km grid, to conduct comprehensive risk zoning for major disaster types in the basin. This study employed 12 evaluation indicators corresponding to 3 categories of factors to divide the region into 3 disaster-prone environmental sensitivity zones, 9 natural disaster significant impact zones, and 26 comprehensive risk zones to conduct an in-depth analysis of specific disaster types. The accuracy of the results was validated using field data and survey questionnaires. The results indicate that (1) The comprehensive disaster risk in the Ili River Basin shows an east-high, west-low trend, with significant spatial differences. (2) Multiple types of disasters frequently occur in the basin, including floods, geological disasters, droughts, and snow disasters. (3) The zoning results are consistent with historical data and relevant studies in terms of overall spatial distribution and the representation of typical disaster types. Unlike more macro-scale national disaster risk assessments, this study was conducted on the scale of a watershed to take into consideration the unique geological structure, climate characteristics, and other disaster-prone environmental factors of the study area. By constructing a risk zoning system tailored to the local context, this study was intended to enhance the precision and effectiveness of local disaster risk management and ensure the sustainable development of the region’s ecological economy.

Key words: watershed scale, disaster management, zoning, comprehensive disaster risk, Ili River Basin