Soil organic carbon distribution and factors affecting carbon accumulation in natural and plantation forests in tropical China
Tropical rainforests are the most complex forest ecosystem in the world, and play an important role in the global carbon cycle. To investigate the accumulation characteristics of soil organic carbon (SOC) in tropical rainforests of different origins, soil samples from plantation and natural forests...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | Ecological Indicators |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X23002698 |
| _version_ | 1797866101133017088 |
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| author | Zeyang Zhao Peng Dong Bo Fu Dan Wu Zhizhong Zhao |
| author_facet | Zeyang Zhao Peng Dong Bo Fu Dan Wu Zhizhong Zhao |
| author_sort | Zeyang Zhao |
| collection | DOAJ |
| description | Tropical rainforests are the most complex forest ecosystem in the world, and play an important role in the global carbon cycle. To investigate the accumulation characteristics of soil organic carbon (SOC) in tropical rainforests of different origins, soil samples from plantation and natural forests of tropical mountain rainforests in Wuzhi Mountain (WM), Qixian Mountain (QM) and Diaoluo Mountain (DM) in eastern Hainan Island, China, were collected at various depths (0–10, 10–30 and 30–50 cm). SOC concentrations of different-forest-origin soils were analysed and compared, and the effects of soil physicochemical parameters on SOC concentration in natural and plantation forests were investigated. SOC concentrations in plantation forests in WM, QM and DM were higher than those in natural forests, although the difference was not statistically significant. In the 0–50 cm soil depth, the SOC concentrations of different-forest-origin soils decreased with increasing soil depth, with SOC concentrations in the surface layer (0–10 cm) of natural forests being significantly higher than those in the middle layer (10–30 cm) and bottom layer (30–50 cm) (P < 0.05). Natural forests have lower pH than plantation forests. Correlation analysis revealed significant negative correlation (P < 0.05) between SOC concentration in both forest origins and soil pH. The proportion of clay and silt is greater in natural forests than in plantation forests, but the proportion of sand is greater in plantation forests. |
| first_indexed | 2024-04-09T23:19:45Z |
| format | Article |
| id | doaj.art-807928d59acc454f9e0cd29f27b59e2a |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-04-09T23:19:45Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-807928d59acc454f9e0cd29f27b59e2a2023-03-22T04:36:23ZengElsevierEcological Indicators1470-160X2023-04-01148110127Soil organic carbon distribution and factors affecting carbon accumulation in natural and plantation forests in tropical ChinaZeyang Zhao0Peng Dong1Bo Fu2Dan Wu3Zhizhong Zhao4College of Geography and Environmental Science, Hainan Normal University, Haikou, Hainan, China; Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, Brisbane, QLD 4102, AustraliaCollege of Life Sciences, Hainan Normal University, Haikou, Hainan, ChinaCenter for Catalysis and Clean Energy, School of Environment and Science, Griffith University, Gold Coast, QLD 4222, AustraliaCollege of Geography and Environmental Science, Hainan Normal University, Haikou, Hainan, ChinaCollege of Geography and Environmental Science, Hainan Normal University, Haikou, Hainan, China; Corresponding author.Tropical rainforests are the most complex forest ecosystem in the world, and play an important role in the global carbon cycle. To investigate the accumulation characteristics of soil organic carbon (SOC) in tropical rainforests of different origins, soil samples from plantation and natural forests of tropical mountain rainforests in Wuzhi Mountain (WM), Qixian Mountain (QM) and Diaoluo Mountain (DM) in eastern Hainan Island, China, were collected at various depths (0–10, 10–30 and 30–50 cm). SOC concentrations of different-forest-origin soils were analysed and compared, and the effects of soil physicochemical parameters on SOC concentration in natural and plantation forests were investigated. SOC concentrations in plantation forests in WM, QM and DM were higher than those in natural forests, although the difference was not statistically significant. In the 0–50 cm soil depth, the SOC concentrations of different-forest-origin soils decreased with increasing soil depth, with SOC concentrations in the surface layer (0–10 cm) of natural forests being significantly higher than those in the middle layer (10–30 cm) and bottom layer (30–50 cm) (P < 0.05). Natural forests have lower pH than plantation forests. Correlation analysis revealed significant negative correlation (P < 0.05) between SOC concentration in both forest origins and soil pH. The proportion of clay and silt is greater in natural forests than in plantation forests, but the proportion of sand is greater in plantation forests.http://www.sciencedirect.com/science/article/pii/S1470160X23002698Soil organic carbonTropical rainforestNatural forestsPlantation forestsPhysicochemical properties |
| spellingShingle | Zeyang Zhao Peng Dong Bo Fu Dan Wu Zhizhong Zhao Soil organic carbon distribution and factors affecting carbon accumulation in natural and plantation forests in tropical China Ecological Indicators Soil organic carbon Tropical rainforest Natural forests Plantation forests Physicochemical properties |
| title | Soil organic carbon distribution and factors affecting carbon accumulation in natural and plantation forests in tropical China |
| title_full | Soil organic carbon distribution and factors affecting carbon accumulation in natural and plantation forests in tropical China |
| title_fullStr | Soil organic carbon distribution and factors affecting carbon accumulation in natural and plantation forests in tropical China |
| title_full_unstemmed | Soil organic carbon distribution and factors affecting carbon accumulation in natural and plantation forests in tropical China |
| title_short | Soil organic carbon distribution and factors affecting carbon accumulation in natural and plantation forests in tropical China |
| title_sort | soil organic carbon distribution and factors affecting carbon accumulation in natural and plantation forests in tropical china |
| topic | Soil organic carbon Tropical rainforest Natural forests Plantation forests Physicochemical properties |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X23002698 |
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