摘要
地球关键带类型单元反映自然本底特征,可为国土空间生态修复提供科学参考。以土地覆盖、地形、土壤为构成要素,划分县域地球关键带类型,并结合InVEST模型和Conefor2.6模型评估区域生态重要性和生态敏感性,识别县域国土空间生态修复分区。结果显示:①西峡县地球关键带类型可划分为一级类型8种,二级类型19种,一级类中阔叶林丘陵地类型为主要类型,二级类中阔叶林丘陵地淋溶土为主要类型;②高生态重要性等级地球关键带集中在中部和北部分布,约占县域的9.3%。生态敏感性等级高的地球关键带单元主要分布在北部丘陵区;③按生态等级将地球关键带单元分为底线型、紧张型、缓冲型和一般型4类,县域国土空间生态修复区域分为自然保护地核心保育区、重点生态保护区、一般生态保护区和其他区域。
The type units of Earth’s Critical Zone reflect the characteristics of the natural background,which can provide scientificreference for the ecological restoration of land and space.We use land cover,topography and soil as the constituent elements to dividethe types of Earth’s Critical Zone,the regional ecological importance and ecological sensitivity are evaluated by combining the InVESTmodel and Conefor2.6 model,and the land−space ecological restoration zone is identified.The results show that:①The types of Earth’s Critical Zone in Xixia County could be divided into 8 first−class types and 19 second−class types,with the Broadleaf forest−Hilly inthe first−class types as the main type,and the Broadleaf forest−Hilly−Leaching soil in the second−class types as the main type.②Theunits of high ecological importance were concentrated in the central and northern parts,accounting for about 9.3%of the county.Theunits with high ecological sensitivity are mainly distributed in the northern hilly area.③According to the ecological level,the units ofEarth’s Critical Zone are divided into four categories:bottom line,tension,buffer and general,and the ecological restoration is dividedinto core conservation area of nature reserve,key ecological reserve,general ecological reserve and other areas.
作者
黄培真
赵华甫
吴克宁
钱家乘
李潇
HUANG Peizhen;ZHAO Huafu;WU Kening;QIAN Jiacheng;LI Xiao(School of Land Science and Technology,China University of Geosciences,Beijing 100083,China;Key Laboratory of Land Consolidation and Rehabilitation,Ministry of Nature Resources,Beijing 100035,China)
出处
《地质通报》
CAS
CSCD
北大核心
2024年第8期1325-1335,共11页
Geological Bulletin of China
基金
教育部人文社会科学研究规划基金《粮食安全语境下耕地弹性空间识别与管控研究》(编号:21YJA630121)
国家自然科学基金面上项目《区域土地类型划分与耕地资源适应性管理》(批准号:42171261)
自然资源部科技发展司委托项目《地球关键带与自然资源管理战略研究》。
关键词
西峡县
地球关键带类型
生态重要性
生态敏感性
生态修复
Xixia County
types of Earth’s Critical Zone
ecological importance
ecological sensitivity
ecological restoration
