Decoupling Relationship between Urbanization and Carbon Sequestration in the Pearl River Delta from 2000 to 2020
Rapid urbanization has a significant impact on the ecological environment. Net primary productivity (<i>NPP</i>) can effectively reflect the growth of urban vegetation and the carbon sequestration capacity of an ecosystem. Taking the rapidly growing Pearl River Delta (PRD) as our study a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/3/526 |
| _version_ | 1797485079208919040 |
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| author | Xuechen Li Yuhang Luo Jiansheng Wu |
| author_facet | Xuechen Li Yuhang Luo Jiansheng Wu |
| author_sort | Xuechen Li |
| collection | DOAJ |
| description | Rapid urbanization has a significant impact on the ecological environment. Net primary productivity (<i>NPP</i>) can effectively reflect the growth of urban vegetation and the carbon sequestration capacity of an ecosystem. Taking the rapidly growing Pearl River Delta (PRD) as our study area, the relative contributions of human activities and climate change to <i>NPP</i> were analyzed using an improved two-step method based on residual trend analysis. The decoupling index was used to compare the coordinated development of socioeconomic factors and the <i>NPP</i> in different time periods. This study lays the foundation for formulating comprehensive and reasonable urban low-carbon development measures. The results showed that (1) <i>NPP</i> decreased significantly before 2010, but by 2019, <i>NPP</i> in most regions of the PRD showed a slight increase. The <i>NPP</i> of new urban land was better than that of original urban land. (2) The negative contribution of climatic factors to <i>NPP</i> was clearer than that of human activities, and human activities contributed positively to <i>NPP</i> outside urban land. (3) The decoupling status of socioeconomic factors and <i>NPP</i> is improving, and the degree of decoupling in 2010–2019 was higher than that in 2000–2010. In conclusion, as the first forest urban agglomeration in China, the PRD has shown a good implementation of carbon sequestration policies, which can provide a reference for the coordinated development of urbanization and carbon sequestration. |
| first_indexed | 2024-03-09T23:14:43Z |
| format | Article |
| id | doaj.art-743ac1f3f4864141ab3d548b7ae9516a |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T23:14:43Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-743ac1f3f4864141ab3d548b7ae9516a2023-11-23T17:39:09ZengMDPI AGRemote Sensing2072-42922022-01-0114352610.3390/rs14030526Decoupling Relationship between Urbanization and Carbon Sequestration in the Pearl River Delta from 2000 to 2020Xuechen Li0Yuhang Luo1Jiansheng Wu2Key Laboratory for Urban Habitat Environmental Science and Technology, School of Urban Planning and Design, Peking University, Shenzhen 518055, ChinaKey Laboratory for Urban Habitat Environmental Science and Technology, School of Urban Planning and Design, Peking University, Shenzhen 518055, ChinaKey Laboratory for Urban Habitat Environmental Science and Technology, School of Urban Planning and Design, Peking University, Shenzhen 518055, ChinaRapid urbanization has a significant impact on the ecological environment. Net primary productivity (<i>NPP</i>) can effectively reflect the growth of urban vegetation and the carbon sequestration capacity of an ecosystem. Taking the rapidly growing Pearl River Delta (PRD) as our study area, the relative contributions of human activities and climate change to <i>NPP</i> were analyzed using an improved two-step method based on residual trend analysis. The decoupling index was used to compare the coordinated development of socioeconomic factors and the <i>NPP</i> in different time periods. This study lays the foundation for formulating comprehensive and reasonable urban low-carbon development measures. The results showed that (1) <i>NPP</i> decreased significantly before 2010, but by 2019, <i>NPP</i> in most regions of the PRD showed a slight increase. The <i>NPP</i> of new urban land was better than that of original urban land. (2) The negative contribution of climatic factors to <i>NPP</i> was clearer than that of human activities, and human activities contributed positively to <i>NPP</i> outside urban land. (3) The decoupling status of socioeconomic factors and <i>NPP</i> is improving, and the degree of decoupling in 2010–2019 was higher than that in 2000–2010. In conclusion, as the first forest urban agglomeration in China, the PRD has shown a good implementation of carbon sequestration policies, which can provide a reference for the coordinated development of urbanization and carbon sequestration.https://www.mdpi.com/2072-4292/14/3/526net primary productivityTapio decoupling indexurbanizationPearl River Deltacarbon neutrality |
| spellingShingle | Xuechen Li Yuhang Luo Jiansheng Wu Decoupling Relationship between Urbanization and Carbon Sequestration in the Pearl River Delta from 2000 to 2020 Remote Sensing net primary productivity Tapio decoupling index urbanization Pearl River Delta carbon neutrality |
| title | Decoupling Relationship between Urbanization and Carbon Sequestration in the Pearl River Delta from 2000 to 2020 |
| title_full | Decoupling Relationship between Urbanization and Carbon Sequestration in the Pearl River Delta from 2000 to 2020 |
| title_fullStr | Decoupling Relationship between Urbanization and Carbon Sequestration in the Pearl River Delta from 2000 to 2020 |
| title_full_unstemmed | Decoupling Relationship between Urbanization and Carbon Sequestration in the Pearl River Delta from 2000 to 2020 |
| title_short | Decoupling Relationship between Urbanization and Carbon Sequestration in the Pearl River Delta from 2000 to 2020 |
| title_sort | decoupling relationship between urbanization and carbon sequestration in the pearl river delta from 2000 to 2020 |
| topic | net primary productivity Tapio decoupling index urbanization Pearl River Delta carbon neutrality |
| url | https://www.mdpi.com/2072-4292/14/3/526 |
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