Quantitative Assessment of the Impacts of Climate Change and Human Activity on the Net Primary Productivity of Subtropical Vegetation: The Case of Shaoguan, Guangdong, China
Vegetation net primary productivity (NPP) is critical to maintaining and enhancing the carbon sink of vegetation. Shaoguan is a characteristic forest city in the subtropical region of South China and an ecological barrier in the Guangdong–Hong Kong–Macau Greater Bay Area (GBA), playing an instrument...
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MDPI AG
2023-12-01
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| Series: | Forests |
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| Online Access: | https://www.mdpi.com/1999-4907/14/12/2447 |
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| author | Chenyao Zhao Shuisen Chen Kai Jia Dan Li Boxiong Qin Yishan Sun Hao Zhang |
| author_facet | Chenyao Zhao Shuisen Chen Kai Jia Dan Li Boxiong Qin Yishan Sun Hao Zhang |
| author_sort | Chenyao Zhao |
| collection | DOAJ |
| description | Vegetation net primary productivity (NPP) is critical to maintaining and enhancing the carbon sink of vegetation. Shaoguan is a characteristic forest city in the subtropical region of South China and an ecological barrier in the Guangdong–Hong Kong–Macau Greater Bay Area (GBA), playing an instrumental role in protecting water resources, purifying air, and maintaining ecological balance. However, studies that quantify subtropical vegetation NPP dynamics in Shaoguan under the influence of climate and human drivers are still incomplete. In this research, vegetation NPP at 30 m resolution was estimated from 2001 to 2020 using the enhanced CASA model based on the GF-SG algorithm in Shaoguan. The RESTREND method was then utilized to quantify climatic and human effects on NPP. The results indicated that the vegetation NPP in Shaoguan increased rapidly (4.09 g C/m<sup>2</sup>/yr, <i>p</i> < 0.001) over the past 20 years. Climate and human drivers contributed 0.948 g C/m<sup>2</sup>/yr and 3.137 g C/m<sup>2</sup>/yr to vegetation NPP, respectively. Human activity plays a major role in vegetation restoration through ecological projects, whereas vegetation deterioration is primarily attributable to the combined action of climate change and human activity, such as urban expansion, deforestation, and meteorological disasters. The results emphasize the importance of ecological projects for the restoration of vegetated ecosystems and ecological construction in Shaoguan. |
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| institution | Directory Open Access Journal |
| issn | 1999-4907 |
| language | English |
| last_indexed | 2024-03-08T20:45:38Z |
| publishDate | 2023-12-01 |
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| series | Forests |
| spelling | doaj.art-5a38c90887f14709a0f887ed9ad62f1c2023-12-22T14:09:48ZengMDPI AGForests1999-49072023-12-011412244710.3390/f14122447Quantitative Assessment of the Impacts of Climate Change and Human Activity on the Net Primary Productivity of Subtropical Vegetation: The Case of Shaoguan, Guangdong, ChinaChenyao Zhao0Shuisen Chen1Kai Jia2Dan Li3Boxiong Qin4Yishan Sun5Hao Zhang6Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaGuangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaKey Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System, Guangdong Open Laboratory of Geospatial Information Technology and Application, GuangDong Engineering Technology Research Center of Remote Sensing Big Data Application, Guangzhou Institute of Geography, Guangdong Academy of Sciences, Guangzhou 510070, ChinaKey Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System, Guangdong Open Laboratory of Geospatial Information Technology and Application, GuangDong Engineering Technology Research Center of Remote Sensing Big Data Application, Guangzhou Institute of Geography, Guangdong Academy of Sciences, Guangzhou 510070, ChinaKey Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System, Guangdong Open Laboratory of Geospatial Information Technology and Application, GuangDong Engineering Technology Research Center of Remote Sensing Big Data Application, Guangzhou Institute of Geography, Guangdong Academy of Sciences, Guangzhou 510070, ChinaGuangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, ChinaJoint Laboratory on Low-Carbon Digital Monitoring, Guangdong Institute of Carbon Neutrality (Shaoguan), Shaoguan ShenBay Low Carbon Digital Technology Co., Ltd., Shaoguan 512029, ChinaVegetation net primary productivity (NPP) is critical to maintaining and enhancing the carbon sink of vegetation. Shaoguan is a characteristic forest city in the subtropical region of South China and an ecological barrier in the Guangdong–Hong Kong–Macau Greater Bay Area (GBA), playing an instrumental role in protecting water resources, purifying air, and maintaining ecological balance. However, studies that quantify subtropical vegetation NPP dynamics in Shaoguan under the influence of climate and human drivers are still incomplete. In this research, vegetation NPP at 30 m resolution was estimated from 2001 to 2020 using the enhanced CASA model based on the GF-SG algorithm in Shaoguan. The RESTREND method was then utilized to quantify climatic and human effects on NPP. The results indicated that the vegetation NPP in Shaoguan increased rapidly (4.09 g C/m<sup>2</sup>/yr, <i>p</i> < 0.001) over the past 20 years. Climate and human drivers contributed 0.948 g C/m<sup>2</sup>/yr and 3.137 g C/m<sup>2</sup>/yr to vegetation NPP, respectively. Human activity plays a major role in vegetation restoration through ecological projects, whereas vegetation deterioration is primarily attributable to the combined action of climate change and human activity, such as urban expansion, deforestation, and meteorological disasters. The results emphasize the importance of ecological projects for the restoration of vegetated ecosystems and ecological construction in Shaoguan.https://www.mdpi.com/1999-4907/14/12/2447CASA modelGF-SGNPPclimate changehuman activity |
| spellingShingle | Chenyao Zhao Shuisen Chen Kai Jia Dan Li Boxiong Qin Yishan Sun Hao Zhang Quantitative Assessment of the Impacts of Climate Change and Human Activity on the Net Primary Productivity of Subtropical Vegetation: The Case of Shaoguan, Guangdong, China Forests CASA model GF-SG NPP climate change human activity |
| title | Quantitative Assessment of the Impacts of Climate Change and Human Activity on the Net Primary Productivity of Subtropical Vegetation: The Case of Shaoguan, Guangdong, China |
| title_full | Quantitative Assessment of the Impacts of Climate Change and Human Activity on the Net Primary Productivity of Subtropical Vegetation: The Case of Shaoguan, Guangdong, China |
| title_fullStr | Quantitative Assessment of the Impacts of Climate Change and Human Activity on the Net Primary Productivity of Subtropical Vegetation: The Case of Shaoguan, Guangdong, China |
| title_full_unstemmed | Quantitative Assessment of the Impacts of Climate Change and Human Activity on the Net Primary Productivity of Subtropical Vegetation: The Case of Shaoguan, Guangdong, China |
| title_short | Quantitative Assessment of the Impacts of Climate Change and Human Activity on the Net Primary Productivity of Subtropical Vegetation: The Case of Shaoguan, Guangdong, China |
| title_sort | quantitative assessment of the impacts of climate change and human activity on the net primary productivity of subtropical vegetation the case of shaoguan guangdong china |
| topic | CASA model GF-SG NPP climate change human activity |
| url | https://www.mdpi.com/1999-4907/14/12/2447 |
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