Evaluation of ecological carrying capacity and construction of ecological security pattern in West Liaohe River Basin of China
The West Liaohe River Basin (WRLB) is a typical agro-pastoral interlaced zone in Northeast China where excessive economic development activities brought great pressure on the ecosystem and caused a series of ecological problems, having a negative effect on regional ecological carrying capacity (ECC)...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-03-01
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| Series: | Frontiers in Ecology and Evolution |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fevo.2024.1335671/full |
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| author | Ying Zheng Ying Zheng Pengcheng Tang Pengcheng Tang Lei Dong Lei Dong Zhenyu Yao Zhenyu Yao Jianying Guo Jianying Guo |
| author_facet | Ying Zheng Ying Zheng Pengcheng Tang Pengcheng Tang Lei Dong Lei Dong Zhenyu Yao Zhenyu Yao Jianying Guo Jianying Guo |
| author_sort | Ying Zheng |
| collection | DOAJ |
| description | The West Liaohe River Basin (WRLB) is a typical agro-pastoral interlaced zone in Northeast China where excessive economic development activities brought great pressure on the ecosystem and caused a series of ecological problems, having a negative effect on regional ecological carrying capacity (ECC). The rational construction of ecological security pattern (ESP) is an effective way to improve regional ECC and alleviate the contradiction between ecological protection and economic development. In this study, taking the WLRB as an example, spatiotemporal changes of ECC in the WLRB from 2000 to 2020 were explored by using spatial principal component analysis (SPCA). Furthermore, ecological sources were determined by coupling ECC evaluation results with important ecological patches such as natural protected areas, and the minimum cumulative resistance (MCR) model combined with the circuit theory method were employed to identify ecological security zoning, ecological corridors and key ecological nodes. Then a comprehensive ESP of the basin was constructed. The results show as follows: 1) The ECC of the overall WLRB was at medium carrying level, yet was spatially differentiated, which decreased from the periphery to the center of the basin in general. ECC showed a fluctuating upward trend from 2000 to 2020. 2) The ecological source area of the WLRB was 21926.91 km², accounting for 17.33% of the total study area. The ecological sources were seriously fragmentated and mainly distributed in the mountain area. The area of ecological conservation zone, optimized buffer zone, ecological transition zone, ecological prevention and control zone were 55672.69 km², 32662.24 km², 23862.84 km² and 12021.04 km², accounting for 44.82%, 26.29%, 19.21% and 9.68%, respectively. We also extracted 95 ecological corridors (with a total length of 3130.97 km), 49 ecological pinch points (with a total area of 200.33 km²) and 30 ecological barrier points (with a total area of 318.30 km²), constituting a “points-lines-planes” comprehensive ecological security pattern. This research can provide scientific reference for the protection and restoration of ecological environment and regional sustainable development. |
| first_indexed | 2024-04-24T23:46:36Z |
| format | Article |
| id | doaj.art-7374e36d9be942d0861ce0f0b63cd715 |
| institution | Directory Open Access Journal |
| issn | 2296-701X |
| language | English |
| last_indexed | 2024-04-24T23:46:36Z |
| publishDate | 2024-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Ecology and Evolution |
| spelling | doaj.art-7374e36d9be942d0861ce0f0b63cd7152024-03-15T04:57:56ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2024-03-011210.3389/fevo.2024.13356711335671Evaluation of ecological carrying capacity and construction of ecological security pattern in West Liaohe River Basin of ChinaYing Zheng0Ying Zheng1Pengcheng Tang2Pengcheng Tang3Lei Dong4Lei Dong5Zhenyu Yao6Zhenyu Yao7Jianying Guo8Jianying Guo9Yinshanbeilu Grassland Eco-hydrology National Observation and Research Station, China Institute of Water Resources and Hydropower Research, Beijing, ChinaDepartment of Water Resources for Pastoral Areas, China Institute of Water Resources and Hydropower Research, Hohhot, ChinaYinshanbeilu Grassland Eco-hydrology National Observation and Research Station, China Institute of Water Resources and Hydropower Research, Beijing, ChinaDepartment of Water Resources for Pastoral Areas, China Institute of Water Resources and Hydropower Research, Hohhot, ChinaYinshanbeilu Grassland Eco-hydrology National Observation and Research Station, China Institute of Water Resources and Hydropower Research, Beijing, ChinaDepartment of Water Resources for Pastoral Areas, China Institute of Water Resources and Hydropower Research, Hohhot, ChinaYinshanbeilu Grassland Eco-hydrology National Observation and Research Station, China Institute of Water Resources and Hydropower Research, Beijing, ChinaDepartment of Water Resources for Pastoral Areas, China Institute of Water Resources and Hydropower Research, Hohhot, ChinaYinshanbeilu Grassland Eco-hydrology National Observation and Research Station, China Institute of Water Resources and Hydropower Research, Beijing, ChinaDepartment of Water Resources for Pastoral Areas, China Institute of Water Resources and Hydropower Research, Hohhot, ChinaThe West Liaohe River Basin (WRLB) is a typical agro-pastoral interlaced zone in Northeast China where excessive economic development activities brought great pressure on the ecosystem and caused a series of ecological problems, having a negative effect on regional ecological carrying capacity (ECC). The rational construction of ecological security pattern (ESP) is an effective way to improve regional ECC and alleviate the contradiction between ecological protection and economic development. In this study, taking the WLRB as an example, spatiotemporal changes of ECC in the WLRB from 2000 to 2020 were explored by using spatial principal component analysis (SPCA). Furthermore, ecological sources were determined by coupling ECC evaluation results with important ecological patches such as natural protected areas, and the minimum cumulative resistance (MCR) model combined with the circuit theory method were employed to identify ecological security zoning, ecological corridors and key ecological nodes. Then a comprehensive ESP of the basin was constructed. The results show as follows: 1) The ECC of the overall WLRB was at medium carrying level, yet was spatially differentiated, which decreased from the periphery to the center of the basin in general. ECC showed a fluctuating upward trend from 2000 to 2020. 2) The ecological source area of the WLRB was 21926.91 km², accounting for 17.33% of the total study area. The ecological sources were seriously fragmentated and mainly distributed in the mountain area. The area of ecological conservation zone, optimized buffer zone, ecological transition zone, ecological prevention and control zone were 55672.69 km², 32662.24 km², 23862.84 km² and 12021.04 km², accounting for 44.82%, 26.29%, 19.21% and 9.68%, respectively. We also extracted 95 ecological corridors (with a total length of 3130.97 km), 49 ecological pinch points (with a total area of 200.33 km²) and 30 ecological barrier points (with a total area of 318.30 km²), constituting a “points-lines-planes” comprehensive ecological security pattern. This research can provide scientific reference for the protection and restoration of ecological environment and regional sustainable development.https://www.frontiersin.org/articles/10.3389/fevo.2024.1335671/fullecological carrying capacityspatiotemporal evolutionecological security patternecological restorationWest Liaohe River Basin |
| spellingShingle | Ying Zheng Ying Zheng Pengcheng Tang Pengcheng Tang Lei Dong Lei Dong Zhenyu Yao Zhenyu Yao Jianying Guo Jianying Guo Evaluation of ecological carrying capacity and construction of ecological security pattern in West Liaohe River Basin of China Frontiers in Ecology and Evolution ecological carrying capacity spatiotemporal evolution ecological security pattern ecological restoration West Liaohe River Basin |
| title | Evaluation of ecological carrying capacity and construction of ecological security pattern in West Liaohe River Basin of China |
| title_full | Evaluation of ecological carrying capacity and construction of ecological security pattern in West Liaohe River Basin of China |
| title_fullStr | Evaluation of ecological carrying capacity and construction of ecological security pattern in West Liaohe River Basin of China |
| title_full_unstemmed | Evaluation of ecological carrying capacity and construction of ecological security pattern in West Liaohe River Basin of China |
| title_short | Evaluation of ecological carrying capacity and construction of ecological security pattern in West Liaohe River Basin of China |
| title_sort | evaluation of ecological carrying capacity and construction of ecological security pattern in west liaohe river basin of china |
| topic | ecological carrying capacity spatiotemporal evolution ecological security pattern ecological restoration West Liaohe River Basin |
| url | https://www.frontiersin.org/articles/10.3389/fevo.2024.1335671/full |
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