Assessing spatial and seasonal variability in soil organic carbon fractions of teal carbon in semi-arid Ramsar wetlands of India as a natural climate solution
Abstract The shallow inland wetlands serve a multifunctional role in the environment, with their significant capacity for carbon storage being a distinctive characteristic that positions them as a potential solution for climate change. This study examined the spatial and seasonal variability of soil...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer
2025-07-01
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| Series: | Discover Soil |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/s44378-025-00085-w |
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| Summary: | Abstract The shallow inland wetlands serve a multifunctional role in the environment, with their significant capacity for carbon storage being a distinctive characteristic that positions them as a potential solution for climate change. This study examined the spatial and seasonal variability of soil organic carbon (SOC) fractions of teal carbon, along with their influencing factors, in Sambhar Lake (a shallow lake) and Keoladeo National Park (a forested wetland), both of which are prominent inland Ramsar sites in India’s semiarid region. The study aimed to quantify the potential of SOC as a Natural Climate Solution (NCS). Ground-based laboratory observations and remote sensing data (19 for SL and 12 for KNP soil depth composite samples) were used. According to Principal Component Analysis (PCA), SOC stock was affected by bulk density, pH, C:N ratio, and elevation for SL and NDVI, and SABI for KNP. Both pre- and post-monsoon SOC stocks were calculated to 50 cm at SL and KNP. SOC stock was found to be 143 t C/ ha at SL in October and 119 t C/ ha in April, whereas at KNP, it measured 251 t C/ ha in October and 164 t C/ ha in April. Despite significant seasonal variability, SL retains approximately 32929.1 and 27298.7 tons of carbon. In contrast, the carbon storage capacity of KNP was about 7037.8 and 4594 tons of carbon in the soil during the post-monsoon (October) and pre-monsoon (April) periods, respectively. The depletion of water during the pre-monsoon season results in a loss of 24.48 tons of carbon (5630.4 tons CO2-eq.) and 87.26 tons of carbon (2443.3 tons CO2-eq.) in SL and KNP, respectively. The study underscored the importance of Ramsar sites in semiarid regions for achieving the Sustainable Development Goals (SDGs) 2030 related to climate action (SDG-13). |
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| ISSN: | 3005-1223 |