Carbon storage and sequestration in Southeast Asian urban clusters under future land cover change scenarios (2015–2050)
Land-use land-cover (LULC) changes are occurring rapidly in Southeast Asia (SEA), generally associated with population growth, economic development and competing demands for land. Land cover change is one of the vital factors affecting carbon dynamics and emissions. SEA is an important region to stu...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/169210 |
| _version_ | 1811677791500894208 |
|---|---|
| author | Kamarajugedda, Shankar Acharya Johnson, Justin Andrew McDonald, Robert Hamel, Perrine |
| author2 | Asian School of the Environment |
| author_facet | Asian School of the Environment Kamarajugedda, Shankar Acharya Johnson, Justin Andrew McDonald, Robert Hamel, Perrine |
| author_sort | Kamarajugedda, Shankar Acharya |
| collection | NTU |
| description | Land-use land-cover (LULC) changes are occurring rapidly in Southeast Asia (SEA), generally associated with population growth, economic development and competing demands for land. Land cover change is one of the vital factors affecting carbon dynamics and emissions. SEA is an important region to study urban-caused LULC emissions and the potential for nature-based solutions (NBS) and nature climate solutions (NCS), as it is home to nearly 15% of the world’s tropical forests and has some of the world’s fastest rates of urban growth. We present a fine-scale urban cluster level assessment for SEA of current (2015) and future (2050) scenarios for carbon sequestration service and climate mitigation potential. We identified 956 urban clusters distributed across 11 countries of SEA. Considering the urban expansion projected and decline in forests, this region could see a carbon loss of up to 0.11 Gigatonnes (Scenario SSP4 RCP 3.4). Comparing carbon change values to urban emissions, we found that the average offset value ranging from −2% (Scenario SSP1 RCP 2.6) to −21%. We also found that a few medium and large urban clusters could add to more than double the existing carbon emissions in 2050 in the SSP3 and SSP4 RCP 3.4 scenarios, while a minority of clusters could offset their emissions under SSP1. Our study confirms that NCS, and particularly reforestation, are in many cases able to offset the direct emissions from land cover conversion from SEA urban clusters. Hence, documenting the plausible LULC transitions and the associated impacts gains significance in the SEA region as the results can be useful for informing policy and sustainable land management. |
| first_indexed | 2024-10-01T02:42:59Z |
| format | Journal Article |
| id | ntu-10356/169210 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:42:59Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1692102023-07-10T15:30:35Z Carbon storage and sequestration in Southeast Asian urban clusters under future land cover change scenarios (2015–2050) Kamarajugedda, Shankar Acharya Johnson, Justin Andrew McDonald, Robert Hamel, Perrine Asian School of the Environment Earth Observatory of Singapore Science::Geology Urban Clusters Carbon Emissions Land-use land-cover (LULC) changes are occurring rapidly in Southeast Asia (SEA), generally associated with population growth, economic development and competing demands for land. Land cover change is one of the vital factors affecting carbon dynamics and emissions. SEA is an important region to study urban-caused LULC emissions and the potential for nature-based solutions (NBS) and nature climate solutions (NCS), as it is home to nearly 15% of the world’s tropical forests and has some of the world’s fastest rates of urban growth. We present a fine-scale urban cluster level assessment for SEA of current (2015) and future (2050) scenarios for carbon sequestration service and climate mitigation potential. We identified 956 urban clusters distributed across 11 countries of SEA. Considering the urban expansion projected and decline in forests, this region could see a carbon loss of up to 0.11 Gigatonnes (Scenario SSP4 RCP 3.4). Comparing carbon change values to urban emissions, we found that the average offset value ranging from −2% (Scenario SSP1 RCP 2.6) to −21%. We also found that a few medium and large urban clusters could add to more than double the existing carbon emissions in 2050 in the SSP3 and SSP4 RCP 3.4 scenarios, while a minority of clusters could offset their emissions under SSP1. Our study confirms that NCS, and particularly reforestation, are in many cases able to offset the direct emissions from land cover conversion from SEA urban clusters. Hence, documenting the plausible LULC transitions and the associated impacts gains significance in the SEA region as the results can be useful for informing policy and sustainable land management. National Research Foundation (NRF) Published version This study was funded by the National Research Foundation, Prime Minister’s Office, Singapore (Grant number: NRF-NRFF12- 2020-0009). 2023-07-07T05:29:29Z 2023-07-07T05:29:29Z 2023 Journal Article Kamarajugedda, S. A., Johnson, J. A., McDonald, R. & Hamel, P. (2023). Carbon storage and sequestration in Southeast Asian urban clusters under future land cover change scenarios (2015–2050). Frontiers in Environmental Science, 11. https://dx.doi.org/10.3389/fenvs.2023.1105759 2296-665X https://hdl.handle.net/10356/169210 10.3389/fenvs.2023.1105759 2-s2.0-85152030624 11 en NRF-NRFF12- 2020-0009 Frontiers in Environmental Science © 2023 Kamarajugedda, Johnson, McDonald and Hamel. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. application/pdf |
| spellingShingle | Science::Geology Urban Clusters Carbon Emissions Kamarajugedda, Shankar Acharya Johnson, Justin Andrew McDonald, Robert Hamel, Perrine Carbon storage and sequestration in Southeast Asian urban clusters under future land cover change scenarios (2015–2050) |
| title | Carbon storage and sequestration in Southeast Asian urban clusters under future land cover change scenarios (2015–2050) |
| title_full | Carbon storage and sequestration in Southeast Asian urban clusters under future land cover change scenarios (2015–2050) |
| title_fullStr | Carbon storage and sequestration in Southeast Asian urban clusters under future land cover change scenarios (2015–2050) |
| title_full_unstemmed | Carbon storage and sequestration in Southeast Asian urban clusters under future land cover change scenarios (2015–2050) |
| title_short | Carbon storage and sequestration in Southeast Asian urban clusters under future land cover change scenarios (2015–2050) |
| title_sort | carbon storage and sequestration in southeast asian urban clusters under future land cover change scenarios 2015 2050 |
| topic | Science::Geology Urban Clusters Carbon Emissions |
| url | https://hdl.handle.net/10356/169210 |
| work_keys_str_mv | AT kamarajugeddashankaracharya carbonstorageandsequestrationinsoutheastasianurbanclustersunderfuturelandcoverchangescenarios20152050 AT johnsonjustinandrew carbonstorageandsequestrationinsoutheastasianurbanclustersunderfuturelandcoverchangescenarios20152050 AT mcdonaldrobert carbonstorageandsequestrationinsoutheastasianurbanclustersunderfuturelandcoverchangescenarios20152050 AT hamelperrine carbonstorageandsequestrationinsoutheastasianurbanclustersunderfuturelandcoverchangescenarios20152050 |