How does planting structure change affect the agricultural net carbon sink? Evidence from the Jiangsu coastal economic Belt
As one of the terrestrial ecosystems, the agroecosystem is an essential source of both greenhouse gas absorption and emission. Therefore, changes in agricultural land use significantly affect the regional net carbon sink (NCS). To further investigate this path, this paper calculated the agricultural...
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Elsevier
2025-01-01
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| Series: | Ecological Indicators |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X24014067 |
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| author | Xiaomei Shen Rong Yan Mingdong Jiang |
| author_facet | Xiaomei Shen Rong Yan Mingdong Jiang |
| author_sort | Xiaomei Shen |
| collection | DOAJ |
| description | As one of the terrestrial ecosystems, the agroecosystem is an essential source of both greenhouse gas absorption and emission. Therefore, changes in agricultural land use significantly affect the regional net carbon sink (NCS). To further investigate this path, this paper calculated the agricultural greenhouse gas emissions and absorption status to analyze the NCS in 20 districts and counties within the Jiangsu Coastal Economic Belt (JCEB) from 2000 to 2020. On this basis, an extended Logarithmic Mean Divisia Index (LMDI) model was established to empirically decompose the driving effort of planting structure change (PSC) on NCS. We also compared the subdivision effect of PSC with its spatiotemporal characteristics and evolution patterns. Results indicate that the agricultural NCS in JCEB increased from 7.16 × 106 tC to 1.02 × 107 tC, demonstrating a state of carbon surplus that first decreased and then increased during the study period. We further proved that PSC inhibited the growth of the agricultural NCS in JCEB, while this effect shows a fluctuating decline. From a spatial perspective, the influence of the PSC on the NCS in southern regions is relatively high compared to that of northern JCEB. Specifically, the grain structural effect (GSE) and grain-cash crop structural effect (GCSE) on the agriculture NCS shift from suppression to promotion, with turning points occurring in 2011 and 2015, respectively. Moreover, the changes in the cash crop structural effect (CSE) had an ongoing dampening impact on the NCS. Based on the above research, we propose implications for using resource endowments, adjusting crop planting structure, and optimizing land use. |
| format | Article |
| id | doaj-art-193525de6426489186f35c6977e6529e |
| institution | Kabale University |
| issn | 1470-160X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
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| series | Ecological Indicators |
| spelling | doaj-art-193525de6426489186f35c6977e6529e2025-01-31T05:10:18ZengElsevierEcological Indicators1470-160X2025-01-01170112949How does planting structure change affect the agricultural net carbon sink? Evidence from the Jiangsu coastal economic BeltXiaomei Shen0Rong Yan1Mingdong Jiang2Green and Low-carbon Development Institute of Yancheng, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, ChinaGreen and Low-carbon Development Institute of Yancheng, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, ChinaDepartment of Public Administration, Southeast University, Nanjing 211189, China; Key Laboratory of Estuarine and Coastal Environment of the Ministry of Ecology and Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; Corresponding author at: Department of Public Administration, Southeast University, Nanjing 211189, China.As one of the terrestrial ecosystems, the agroecosystem is an essential source of both greenhouse gas absorption and emission. Therefore, changes in agricultural land use significantly affect the regional net carbon sink (NCS). To further investigate this path, this paper calculated the agricultural greenhouse gas emissions and absorption status to analyze the NCS in 20 districts and counties within the Jiangsu Coastal Economic Belt (JCEB) from 2000 to 2020. On this basis, an extended Logarithmic Mean Divisia Index (LMDI) model was established to empirically decompose the driving effort of planting structure change (PSC) on NCS. We also compared the subdivision effect of PSC with its spatiotemporal characteristics and evolution patterns. Results indicate that the agricultural NCS in JCEB increased from 7.16 × 106 tC to 1.02 × 107 tC, demonstrating a state of carbon surplus that first decreased and then increased during the study period. We further proved that PSC inhibited the growth of the agricultural NCS in JCEB, while this effect shows a fluctuating decline. From a spatial perspective, the influence of the PSC on the NCS in southern regions is relatively high compared to that of northern JCEB. Specifically, the grain structural effect (GSE) and grain-cash crop structural effect (GCSE) on the agriculture NCS shift from suppression to promotion, with turning points occurring in 2011 and 2015, respectively. Moreover, the changes in the cash crop structural effect (CSE) had an ongoing dampening impact on the NCS. Based on the above research, we propose implications for using resource endowments, adjusting crop planting structure, and optimizing land use.http://www.sciencedirect.com/science/article/pii/S1470160X24014067Net agricultural carbon sinkPlantation structureLMDI modelJiangsu Coastal Economic Belt |
| spellingShingle | Xiaomei Shen Rong Yan Mingdong Jiang How does planting structure change affect the agricultural net carbon sink? Evidence from the Jiangsu coastal economic Belt Ecological Indicators Net agricultural carbon sink Plantation structure LMDI model Jiangsu Coastal Economic Belt |
| title | How does planting structure change affect the agricultural net carbon sink? Evidence from the Jiangsu coastal economic Belt |
| title_full | How does planting structure change affect the agricultural net carbon sink? Evidence from the Jiangsu coastal economic Belt |
| title_fullStr | How does planting structure change affect the agricultural net carbon sink? Evidence from the Jiangsu coastal economic Belt |
| title_full_unstemmed | How does planting structure change affect the agricultural net carbon sink? Evidence from the Jiangsu coastal economic Belt |
| title_short | How does planting structure change affect the agricultural net carbon sink? Evidence from the Jiangsu coastal economic Belt |
| title_sort | how does planting structure change affect the agricultural net carbon sink evidence from the jiangsu coastal economic belt |
| topic | Net agricultural carbon sink Plantation structure LMDI model Jiangsu Coastal Economic Belt |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X24014067 |
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