Ecological restoration projects enhanced terrestrial carbon sequestration in the karst region of Southwest China
The karst region of southwest China showed a significant increase in vegetation cover and vegetation carbon stocks under the implementation of a series of ecological restoration projects. However, the relative contribution of ecological restoration projects to terrestrial carbon sequestration in the...
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Frontiers Media S.A.
2023-05-01
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| Series: | Frontiers in Ecology and Evolution |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fevo.2023.1179608/full |
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| author | Yan Lv Yan Lv Yan Lv Li Zhang Li Zhang Li Zhang Pan Li Honglin He Honglin He Honglin He Xiaoli Ren Xiaoli Ren Xiaoli Ren Mengyu Zhang Mengyu Zhang Mengyu Zhang |
| author_facet | Yan Lv Yan Lv Yan Lv Li Zhang Li Zhang Li Zhang Pan Li Honglin He Honglin He Honglin He Xiaoli Ren Xiaoli Ren Xiaoli Ren Mengyu Zhang Mengyu Zhang Mengyu Zhang |
| author_sort | Yan Lv |
| collection | DOAJ |
| description | The karst region of southwest China showed a significant increase in vegetation cover and vegetation carbon stocks under the implementation of a series of ecological restoration projects. However, the relative contribution of ecological restoration projects to terrestrial carbon sequestration in the context of climate change has yet to be well quantified. Here, we used the Community Land Model (CLM4.5) to investigate the trend of net ecosystem productivity (NEP) and attribution to multiple environmental factors in the karst region of southwest China during 2000–2018. The result showed that ecosystems with a significant increasing trend of NEP covered about 46% of the study region, which were mainly located in the peak forest plain region, colliculus region, peak cluster depression region, and middle-high hill region. The simulation experiments suggested that land use change associated with ecological restoration projects caused a large contribution of 53% to the increasing NEP trend, followed by CO2 fertilization (72%), while climate factors and nitrogen deposition showed minor negative effects. Especially, the NEP trend induced by land use change in the 100 pilot counties with the implementation of rocky desertification control project was significantly higher than that in the other karst area. Moreover, moderate and high levels of restoration efforts invested into recovery led to a larger increasing trend (0.66 gC/m2/yr2 and 0.48 gC/m2/yr2) in NEP than the low efforts level (0.22 gC/m2/yr2). Our results highlight the important role of ecological restoration projects in the enhanced terrestrial carbon sequestration in the karst region of southwest China, and recommend a comprehensive assessment of ecological restoration projects for policymaking. |
| first_indexed | 2024-04-09T13:07:37Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2296-701X |
| language | English |
| last_indexed | 2024-04-09T13:07:37Z |
| publishDate | 2023-05-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Ecology and Evolution |
| spelling | doaj.art-07ed9dd1348c4d71aac1ea563ede0fe92023-05-12T12:31:54ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2023-05-011110.3389/fevo.2023.11796081179608Ecological restoration projects enhanced terrestrial carbon sequestration in the karst region of Southwest ChinaYan Lv0Yan Lv1Yan Lv2Li Zhang3Li Zhang4Li Zhang5Pan Li6Honglin He7Honglin He8Honglin He9Xiaoli Ren10Xiaoli Ren11Xiaoli Ren12Mengyu Zhang13Mengyu Zhang14Mengyu Zhang15Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, ChinaNational Ecosystem Science Data Center, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, ChinaNational Ecosystem Science Data Center, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, Beijing, ChinaSchool of Earth System Science, Tianjin University, Tianjin, ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, ChinaNational Ecosystem Science Data Center, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, ChinaNational Ecosystem Science Data Center, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, Beijing, ChinaKey Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, ChinaNational Ecosystem Science Data Center, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaThe karst region of southwest China showed a significant increase in vegetation cover and vegetation carbon stocks under the implementation of a series of ecological restoration projects. However, the relative contribution of ecological restoration projects to terrestrial carbon sequestration in the context of climate change has yet to be well quantified. Here, we used the Community Land Model (CLM4.5) to investigate the trend of net ecosystem productivity (NEP) and attribution to multiple environmental factors in the karst region of southwest China during 2000–2018. The result showed that ecosystems with a significant increasing trend of NEP covered about 46% of the study region, which were mainly located in the peak forest plain region, colliculus region, peak cluster depression region, and middle-high hill region. The simulation experiments suggested that land use change associated with ecological restoration projects caused a large contribution of 53% to the increasing NEP trend, followed by CO2 fertilization (72%), while climate factors and nitrogen deposition showed minor negative effects. Especially, the NEP trend induced by land use change in the 100 pilot counties with the implementation of rocky desertification control project was significantly higher than that in the other karst area. Moreover, moderate and high levels of restoration efforts invested into recovery led to a larger increasing trend (0.66 gC/m2/yr2 and 0.48 gC/m2/yr2) in NEP than the low efforts level (0.22 gC/m2/yr2). Our results highlight the important role of ecological restoration projects in the enhanced terrestrial carbon sequestration in the karst region of southwest China, and recommend a comprehensive assessment of ecological restoration projects for policymaking.https://www.frontiersin.org/articles/10.3389/fevo.2023.1179608/fullnet ecosystem productivitytemporal variationenvironmental factorsthe CLM4.5 modelthe ecological restoration projects |
| spellingShingle | Yan Lv Yan Lv Yan Lv Li Zhang Li Zhang Li Zhang Pan Li Honglin He Honglin He Honglin He Xiaoli Ren Xiaoli Ren Xiaoli Ren Mengyu Zhang Mengyu Zhang Mengyu Zhang Ecological restoration projects enhanced terrestrial carbon sequestration in the karst region of Southwest China Frontiers in Ecology and Evolution net ecosystem productivity temporal variation environmental factors the CLM4.5 model the ecological restoration projects |
| title | Ecological restoration projects enhanced terrestrial carbon sequestration in the karst region of Southwest China |
| title_full | Ecological restoration projects enhanced terrestrial carbon sequestration in the karst region of Southwest China |
| title_fullStr | Ecological restoration projects enhanced terrestrial carbon sequestration in the karst region of Southwest China |
| title_full_unstemmed | Ecological restoration projects enhanced terrestrial carbon sequestration in the karst region of Southwest China |
| title_short | Ecological restoration projects enhanced terrestrial carbon sequestration in the karst region of Southwest China |
| title_sort | ecological restoration projects enhanced terrestrial carbon sequestration in the karst region of southwest china |
| topic | net ecosystem productivity temporal variation environmental factors the CLM4.5 model the ecological restoration projects |
| url | https://www.frontiersin.org/articles/10.3389/fevo.2023.1179608/full |
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