The impact of different road grades on ecological networks in a mega-city Wuhan City, China
The development of road networks over the years has caused serious damage to biodiversity. However, few studies have explored the impact of different road grades on ecological network connectivity, especially at multiple levels and at different dispersal distances. Here, we propose an analytical fra...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-04-01
|
| Series: | Ecological Indicators |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X22002552 |
| _version_ | 1818356310901522432 |
|---|---|
| author | Junqing Wei Yan Zhang Yi Liu Chun Li Yasi Tian Jing Qian Yuan Gao Yongsheng Hong Yanfang Liu |
| author_facet | Junqing Wei Yan Zhang Yi Liu Chun Li Yasi Tian Jing Qian Yuan Gao Yongsheng Hong Yanfang Liu |
| author_sort | Junqing Wei |
| collection | DOAJ |
| description | The development of road networks over the years has caused serious damage to biodiversity. However, few studies have explored the impact of different road grades on ecological network connectivity, especially at multiple levels and at different dispersal distances. Here, we propose an analytical framework based on the integrated graph theory and the circuit theory method, in order to model the ecological network of virtual species, to evaluate connectivity at the landscape, patch, and corridor levels, and to identify the key patches and key corridors that contribute the most to the maintenance of connectivity. The empirical analysis in this study was performed on six scenarios, which were designed by successively integrating different road grades into the landscape. On this basis, the impact of different road grades on the connectivity, key patches, and key corridors in Wuhan, China, were explored. The results showed that: (1) High-grade roads have a significant impact on landscape-patch-corridor connectivity, while medium-grade roads have a similar degree of impact on patch-level connectivity as high-grade roads do. (2) Species with long dispersal ability (25 km) are susceptible to roads at the landscape and corridor levels; species with low and medium dispersal abilities (10, 15 and 20 km) are vulnerable to roads at the patch levels. (3) The importance of key patches and the resistance of key corridors are significantly increased by the influence of roads, while their spatial distribution changes slightly. This integrated framework contributes to an evaluation of the impacts of different grades road on ecological processes, so as to better provide targeted suggestions for biodiversity conservation and transportation planning. |
| first_indexed | 2024-12-13T19:55:11Z |
| format | Article |
| id | doaj.art-aedaaebfe0e84304bada67d16f4f2e3a |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-12-13T19:55:11Z |
| publishDate | 2022-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-aedaaebfe0e84304bada67d16f4f2e3a2022-12-21T23:33:19ZengElsevierEcological Indicators1470-160X2022-04-01137108784The impact of different road grades on ecological networks in a mega-city Wuhan City, ChinaJunqing Wei0Yan Zhang1Yi Liu2Chun Li3Yasi Tian4Jing Qian5Yuan Gao6Yongsheng Hong7Yanfang Liu8School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, ChinaLand Consolidation and Rehabilitation Center, Ministry of Natural Resources of the People's Republic of China, Beijing 100035, ChinaSchool of Public Administration, Guangdong University of Finance & Economics, Guangzhou 510320, ChinaSchool of Ecology and Environmental Science, Yunnan University, Kunming 650091, ChinaSchool of Architecture, Soochow University, Suzhou 215123, ChinaSchool of Architecture and Urban Planning, Suzhou University of Science and Technology, Suzhou 215123, ChinaSchool of Landscape and Architecture, Beijing Forestry University, Beijing 100035, ChinaCollege of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, ChinaSchool of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China; Key Laboratory of Geographic Information System, Ministry of Education, Wuhan University, Wuhan 430079, China; Collaborative Innovation Center for Geospatial Information Technology, Wuhan University, Wuhan 430079, China; Corresponding author at: School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China.The development of road networks over the years has caused serious damage to biodiversity. However, few studies have explored the impact of different road grades on ecological network connectivity, especially at multiple levels and at different dispersal distances. Here, we propose an analytical framework based on the integrated graph theory and the circuit theory method, in order to model the ecological network of virtual species, to evaluate connectivity at the landscape, patch, and corridor levels, and to identify the key patches and key corridors that contribute the most to the maintenance of connectivity. The empirical analysis in this study was performed on six scenarios, which were designed by successively integrating different road grades into the landscape. On this basis, the impact of different road grades on the connectivity, key patches, and key corridors in Wuhan, China, were explored. The results showed that: (1) High-grade roads have a significant impact on landscape-patch-corridor connectivity, while medium-grade roads have a similar degree of impact on patch-level connectivity as high-grade roads do. (2) Species with long dispersal ability (25 km) are susceptible to roads at the landscape and corridor levels; species with low and medium dispersal abilities (10, 15 and 20 km) are vulnerable to roads at the patch levels. (3) The importance of key patches and the resistance of key corridors are significantly increased by the influence of roads, while their spatial distribution changes slightly. This integrated framework contributes to an evaluation of the impacts of different grades road on ecological processes, so as to better provide targeted suggestions for biodiversity conservation and transportation planning.http://www.sciencedirect.com/science/article/pii/S1470160X22002552Landscape connectivityRoad gradesGraph theoryCircuit theoryKey habitatKey corridor |
| spellingShingle | Junqing Wei Yan Zhang Yi Liu Chun Li Yasi Tian Jing Qian Yuan Gao Yongsheng Hong Yanfang Liu The impact of different road grades on ecological networks in a mega-city Wuhan City, China Ecological Indicators Landscape connectivity Road grades Graph theory Circuit theory Key habitat Key corridor |
| title | The impact of different road grades on ecological networks in a mega-city Wuhan City, China |
| title_full | The impact of different road grades on ecological networks in a mega-city Wuhan City, China |
| title_fullStr | The impact of different road grades on ecological networks in a mega-city Wuhan City, China |
| title_full_unstemmed | The impact of different road grades on ecological networks in a mega-city Wuhan City, China |
| title_short | The impact of different road grades on ecological networks in a mega-city Wuhan City, China |
| title_sort | impact of different road grades on ecological networks in a mega city wuhan city china |
| topic | Landscape connectivity Road grades Graph theory Circuit theory Key habitat Key corridor |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X22002552 |
| work_keys_str_mv | AT junqingwei theimpactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT yanzhang theimpactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT yiliu theimpactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT chunli theimpactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT yasitian theimpactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT jingqian theimpactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT yuangao theimpactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT yongshenghong theimpactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT yanfangliu theimpactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT junqingwei impactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT yanzhang impactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT yiliu impactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT chunli impactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT yasitian impactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT jingqian impactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT yuangao impactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT yongshenghong impactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina AT yanfangliu impactofdifferentroadgradesonecologicalnetworksinamegacitywuhancitychina |