基于资源利用和灾害风险的京津冀地区环境地质敏感性区划  

Regionalization of environmental geological sensitivity in Beijing-Tianjin-Hebei Region based on resource utilization and disaster risk

作　　者：赵银兵 陈利顶[2] 孙然好[2] 倪忠云[4] 蒲梦馨 周国李 罗宇豪 ZHAO Yinbing;CHEN Liding;SUN Ranhao;NI Zhongyun;PU Mengxin;ZHOU Guoli;LUO Yuhao(College of Tourism and Urban-Rural Planning,Chengdu University of Technology,Chengdu 610059,China;State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;Key Laboratory of Wetland Ecology and Protection of Hebei Province(in preparation),Hengshui 053000,China;College of Earth Sciences,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]成都理工大学旅游与城乡规划学院,成都610059 [2]中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京100085 [3]河北省湿地生态与保护重点实验室(筹),衡水053000 [4]成都理工大学地球科学学院,成都610059

出　　处：《生态学报》2022年第6期2251-2264,共14页Acta Ecologica Sinica

基　　金：国家重点研发计划项目(2016YFC0503001);河北省湿地生态与保护重点实验室(筹)开放基金(hklk201902)。

摘　　要：环境地质敏感性是区域生态功能的本底,也是构建生态安全格局和开展生态保护与修复的重要基础。因环境地质敏感性涉及因素众多、且多源异构数据较难融合,当前基于环境地质敏感性的大尺度区划研究较少。通过集成地质、地理和专题数据,在土地沙化、土壤盐渍化、崩塌-滑坡、泥石流、地面塌陷、地裂缝、地面沉降、地下水地质环境功能、浅层地下水质量、地下水调蓄和地下水可持续利用11个单项环境地质敏感性评价的基础上,进一步将其归并为土地环境、地质灾害和地下水环境3个环境地质子系统并构建评价指标体系,完成综合环境地质敏感性评价。以地质地貌分区为主要依据,将研究区划分为3个一级环境地质敏感区和16个环境地质敏感性亚区。研究结果表明:环境地质区划与地质构造及分区、地质地貌和人类活动等自然与人为因素存在较强的空间重合;综合环境地质敏感性呈现出西北低、东南高的宏观格局;华北平原区主要受地面沉降和地下水环境敏感性影响,人类活动作用显著;华北山区主要受重力型地质灾害影响,内蒙古高原区主要受沙化和局地泥石流灾害影响,区域尺度以自然因素驱动为主,局部人类活动影响显著。针对综合环境地质敏感性区划结果,需要统筹全域国土空间规划,加强地貌过渡带及城乡关键区域的环境地质问题治理,提升关键生态源地、廊道和节点所在区域的韧性,全面实现城乡协同、生态协同和环境协同。Environmental geological sensitivity is not only the background of regional ecological function but also the important foundation of ecological security pattern construction and ecological protection and restoration. However, there are many factors involved in environmental geological sensitivity which makes it difficult to integrate multi-source data. Therefore, few studies are focused on the comprehensive regionalization in a large scale based on environmental geological assessment. Here, eleven individual environmental geological sensitivities were evaluated by integrating geological, geographic and thematic data, including land desertification, soil salinization, landslide, debris flow, ground collapse, ground fissure, land subsidence, groundwater geological environment function, shallow groundwater quality, groundwater regulation and storage, and groundwater sustainable utilization. Then, the eleven individual environmental geological sensitivities were divided into three environmental geological subsystems of land environment, geological disasters, and groundwater environment to construct an evaluation index system to complete the comprehensive environmental geological sensitivity evaluation. Finally, the study area was divided into three first-class environmental geological sensitive areas and sixteen sub areas based on the geological and geomorphological divisions. The results show that there is a strongly spatial overlap between environmental geological regionalization and natural and human factors, such as geological structure and regionalization, geological geomorphology and human activities. The comprehensive environmental geological sensitivity shows a macro pattern of low in the northwest and high in the southeast. Because of human activities, the North China Plain is mainly affected by land subsidence and groundwater environmental sensitivity. The North China Mountainous Area is mainly affected by gravity type geological disasters, while the Inner Mongolia Plateau area is mainly affected by deserti

关 键 词：环境地质 地质灾害 地貌梯度 敏感性指数 生态安全 

分 类 号：P694[天文地球—地质学] X141[环境科学与工程—环境科学]