基于生态廊道识别的喀斯特流域生态安全格局构建——以贵州南明河流域为例[j]。

Q2 Environmental Science
Yue Li, Jing-Lan Liu, Jing-Jing Li, Chun-Yu Yang, Guang-Jie Luo
{"title":"基于生态廊道识别的喀斯特流域生态安全格局构建——以贵州南明河流域为例[j]。","authors":"Yue Li, Jing-Lan Liu, Jing-Jing Li, Chun-Yu Yang, Guang-Jie Luo","doi":"10.13227/j.hjkx.202404038","DOIUrl":null,"url":null,"abstract":"<p><p>Constructing an ecological security pattern is important for maintaining the stability of the ecosystem in karst areas and promoting the sustainable development of regional social economy. This study takes the Nanming River Basin, a typical karst basin in Guizhou Plateau, as the research object, combines multi-source data, evaluates the ecosystem service (ES) of the basin by using the InVEST model, and identifies ecological source areas scientifically by combining ecological sensitivity, MSPA analysis, and landscape connectivity. The circuit theory is used to identify the ecological corridor and determine the points and obstacles, analyze the integrity and connectivity of the basin ecosystem, reveal the development trend of the basin ecological security, and finally form the ecological security pattern of the Nanming River Basin with the combination of \"point-line-plane.\" The results show that: ① From 2000 to 2020, the ecosystem services of the Nanming River Basin showed a spatial feature of high in the northeast and low in the southwest. ② The ecological sensitivity of the Nanming River Basin was mainly low sensitivity, concentrated in the upper and middle reaches of the basin; the overall level of landscape connectivity was high, with uneven spatial distribution, showing a distribution pattern of high in the northeast and low in the southwest. ③ Patches with better habitat quality were selected as ecological sources, and 52, 52, and 65 ecological sources were identified in 20 years, with a total area of 460.36, 436.74, and 435.11 km<sup>2</sup>, respectively, concentrated in the downstream of the basin with woodland and grassland as the land use types. ④ In this study, 116, 126, and 190 ecological corridors were extracted in 20 years, and short-distance corridors were mainly distributed in the northeast of the basin with a large number, whereas the southwest showed the opposite. A total of 419, 455, and 460 ecological nodes were identified in 20 years, among which the pinch points were mainly concentrated in the downstream of the basin with high vegetation coverage, which should be the key area for ecological protection. The obstacle points were concentrated in the upper and middle reaches of the basin with frequent human activities. The research results aim to provide theoretical and scientific basis for the improvement of ecosystem functions and ecological protection in the Nanming River Basin.</p>","PeriodicalId":35937,"journal":{"name":"环境科学","volume":"46 5","pages":"3098-3113"},"PeriodicalIF":0.0000,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"[Construction of an Ecological Security Pattern in Karst Watersheds Based on Ecological Corridor Identification: A Case Study of the Nanming River Basin in Guizhou].\",\"authors\":\"Yue Li, Jing-Lan Liu, Jing-Jing Li, Chun-Yu Yang, Guang-Jie Luo\",\"doi\":\"10.13227/j.hjkx.202404038\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Constructing an ecological security pattern is important for maintaining the stability of the ecosystem in karst areas and promoting the sustainable development of regional social economy. This study takes the Nanming River Basin, a typical karst basin in Guizhou Plateau, as the research object, combines multi-source data, evaluates the ecosystem service (ES) of the basin by using the InVEST model, and identifies ecological source areas scientifically by combining ecological sensitivity, MSPA analysis, and landscape connectivity. The circuit theory is used to identify the ecological corridor and determine the points and obstacles, analyze the integrity and connectivity of the basin ecosystem, reveal the development trend of the basin ecological security, and finally form the ecological security pattern of the Nanming River Basin with the combination of \\\"point-line-plane.\\\" The results show that: ① From 2000 to 2020, the ecosystem services of the Nanming River Basin showed a spatial feature of high in the northeast and low in the southwest. ② The ecological sensitivity of the Nanming River Basin was mainly low sensitivity, concentrated in the upper and middle reaches of the basin; the overall level of landscape connectivity was high, with uneven spatial distribution, showing a distribution pattern of high in the northeast and low in the southwest. ③ Patches with better habitat quality were selected as ecological sources, and 52, 52, and 65 ecological sources were identified in 20 years, with a total area of 460.36, 436.74, and 435.11 km<sup>2</sup>, respectively, concentrated in the downstream of the basin with woodland and grassland as the land use types. ④ In this study, 116, 126, and 190 ecological corridors were extracted in 20 years, and short-distance corridors were mainly distributed in the northeast of the basin with a large number, whereas the southwest showed the opposite. A total of 419, 455, and 460 ecological nodes were identified in 20 years, among which the pinch points were mainly concentrated in the downstream of the basin with high vegetation coverage, which should be the key area for ecological protection. The obstacle points were concentrated in the upper and middle reaches of the basin with frequent human activities. The research results aim to provide theoretical and scientific basis for the improvement of ecosystem functions and ecological protection in the Nanming River Basin.</p>\",\"PeriodicalId\":35937,\"journal\":{\"name\":\"环境科学\",\"volume\":\"46 5\",\"pages\":\"3098-3113\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-05-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"环境科学\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://doi.org/10.13227/j.hjkx.202404038\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Environmental Science\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"环境科学","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.13227/j.hjkx.202404038","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Environmental Science","Score":null,"Total":0}
引用次数: 0

摘要

构建生态安全格局对维护喀斯特地区生态系统稳定、促进区域社会经济可持续发展具有重要意义。本研究以贵州高原典型喀斯特盆地南明河流域为研究对象,结合多源数据,利用InVEST模型对流域生态系统服务功能(ES)进行评价,并结合生态敏感性、MSPA分析、景观连通性等方法对生态源区进行科学识别。运用回路理论识别生态廊道,确定点与障碍,分析流域生态系统的完整性与连通性,揭示流域生态安全发展趋势,最终形成“点-线-面”相结合的南明河流域生态安全格局。结果表明:①2000—2020年,南明河流域生态系统服务功能呈现东北高、西南低的空间特征;②南明河流域生态敏感性以低敏感性为主,集中在流域中上游;景观连通性总体水平较高,空间分布不均匀,呈现东北高、西南低的分布格局。③选择生境质量较好的斑块作为生态源,20 a内共鉴定出52个、52个和65个生态源,总面积分别为460.36、436.74和435.11 km2,主要集中在流域下游,以林地和草地为土地利用类型。④20 a内共提取生态廊道116条、126条和190条,短距离廊道主要分布在盆地东北部,数量较多,西南部则相反。20年共确定生态节点419个、455个、460个,其中掐点主要集中在流域下游植被覆盖度较高的区域,应作为生态保护的重点区域。障碍物点主要集中在人类活动频繁的流域中上游。研究结果旨在为南明河流域生态系统功能改善和生态保护提供理论和科学依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
[Construction of an Ecological Security Pattern in Karst Watersheds Based on Ecological Corridor Identification: A Case Study of the Nanming River Basin in Guizhou].

Constructing an ecological security pattern is important for maintaining the stability of the ecosystem in karst areas and promoting the sustainable development of regional social economy. This study takes the Nanming River Basin, a typical karst basin in Guizhou Plateau, as the research object, combines multi-source data, evaluates the ecosystem service (ES) of the basin by using the InVEST model, and identifies ecological source areas scientifically by combining ecological sensitivity, MSPA analysis, and landscape connectivity. The circuit theory is used to identify the ecological corridor and determine the points and obstacles, analyze the integrity and connectivity of the basin ecosystem, reveal the development trend of the basin ecological security, and finally form the ecological security pattern of the Nanming River Basin with the combination of "point-line-plane." The results show that: ① From 2000 to 2020, the ecosystem services of the Nanming River Basin showed a spatial feature of high in the northeast and low in the southwest. ② The ecological sensitivity of the Nanming River Basin was mainly low sensitivity, concentrated in the upper and middle reaches of the basin; the overall level of landscape connectivity was high, with uneven spatial distribution, showing a distribution pattern of high in the northeast and low in the southwest. ③ Patches with better habitat quality were selected as ecological sources, and 52, 52, and 65 ecological sources were identified in 20 years, with a total area of 460.36, 436.74, and 435.11 km2, respectively, concentrated in the downstream of the basin with woodland and grassland as the land use types. ④ In this study, 116, 126, and 190 ecological corridors were extracted in 20 years, and short-distance corridors were mainly distributed in the northeast of the basin with a large number, whereas the southwest showed the opposite. A total of 419, 455, and 460 ecological nodes were identified in 20 years, among which the pinch points were mainly concentrated in the downstream of the basin with high vegetation coverage, which should be the key area for ecological protection. The obstacle points were concentrated in the upper and middle reaches of the basin with frequent human activities. The research results aim to provide theoretical and scientific basis for the improvement of ecosystem functions and ecological protection in the Nanming River Basin.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
环境科学
环境科学 Environmental Science-Environmental Science (all)
CiteScore
4.40
自引率
0.00%
发文量
15329
期刊介绍:
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信