摘要
沁河流域作为黄河中游重要支流,研究其生态保护修复工作对黄河流域实现高质量发展具有重要意义。根据生态地质调查工作成果,选取了地质背景和自然环境相关的11项影响沁源县生态地质脆弱性的主要因素,构建了评价指标体系,利用地理信息系统,采用层次分析法建立的评价模型,开展了沁源县生态地质脆弱性评价与分区,对不同的生态地质脆弱性分区,提出了具有针对性的生态保护修复分类施策建议。结果表明:沁源县生态地质轻度脆弱区域主要分布于沁河及其支流河谷,面积占比为1.1%;中度脆弱区域主要分布于王陶乡西部至灵空山镇西北部一带、郭道镇东部至法中乡北部一带,面积占比为81.16%;高度脆弱区域主要分布于县域北部王和镇—郭道镇—官滩乡一带及县域中南部李元镇—灵空山镇一带,面积占比为17.74%;无极脆弱区域。全县共划分为4个生态地质脆弱区,其中包括3个生态地质中度脆弱区——景凤生态地质中度脆弱区(Ⅰ)、太岳山生态地质中度脆弱区(Ⅱ)和交口—沁河生态地质中度脆弱区(Ⅲ),1个生态地质高度脆弱区——王和—李元生态地质高度脆弱区(Ⅳ)。研究成果对沁河流域上游沁源县生态修复工作具有指导意义,可为沁源县国土空间生态保护与修复分区提供参考。
Qinhe River Basin is an important tributary of the middle reaches of the Yellow River,and it is of great significance to study its ecological protection and restoration for the high quality development of the Yellow River Basin.According to the results of the ecological geological survey,the authors selected 11 main factors affecting the ecological geological vulnerability of Qinyuan County,including geological background and natural environment et al,to establish an evaluation index system.The geographical information system and the analytic hierarchy process were used to carry out the ecological geological vulnerability assessment of Qinyuan County.And specific suggestions on ecological protection and restoration were put forward for each ecological geological vulnerability zone.The results show that the mildly vulnerable area of ecological geology in Qinyuan County is mainly distributed in Qinhe River and its tributary river valleys,accounting for 1.1%.The moderately vulnerable area is mainly distributed from the western Wangtao Town to the northwestern Lingkongshan Town,and from Eastern Guodao Town to Northern Fazhong Town,accounting for 81.16%.The highly vulnerable area is mainly distributed in Wanghe Town—Guodao Town—Guantan Town area in the northern Qinyuan County and Liyuan Town—Lingkongshan Town area in the central and southern Qinyuan County,accounting for 17.74%.And there is no extremely vulnerable area.The county can be divided into 4 ecological geological vulnerability zones,including 3 moderate ecological geological vulnerability zones,that is,Jingfeng moderate ecological geological vulnerability zone(Ⅰ),Taiyue Mountain moderate ecological geological vulnerability zone(Ⅱ),and Jiaokou—Qinhe moderate ecological geological vulnerability zone(Ⅲ),and 1 high ecological geological vulnerability zone,that is,Wanghe—Liyuan high geological ecological vulnerability zone(Ⅳ).The research results have guiding significance for ecological geological restoration in Qinyuan County in the upper reaches of Qinhe River basin,and could provide reference for the territorial ecological protection and restoration zoning in Qinyuan County.
作者
刘淼
刘义
苗志加
许凯然
史佩东
LIU Miao;LIU Yi;MIAO Zhijia;XU Kairan;SHI Peidong(Langfang Natural Resources Comprehensive Survey Center of China Geological Survey,Hebei Langfang,065000,China;Hebei Center for Ecological and Environmental Geology Research,Hebei GEO University,Hebei Shijiazhuang 050031,China;China University of Geosciences Beijing,Beijing,100083,China)
出处
《中国地质调查》
CAS
2024年第2期97-107,共11页
Geological Survey of China
基金
中国地质调查局廊坊自然资源综合调查中心“黄河中游沁河流域生态修复支撑调查(编号:DD20211573)”
河北地质大学“河北省高校生态环境地质应用技术研发中心开放基金(编号:JSYF-202206)”项目联合资助。
关键词
生态地质
脆弱性
评价与分区
沁源县
ecological geology
vulnerability
evaluation and zoning
Qinyuan County
