| Carbon Stock Dynamics in Rubber Plantations Along an Elevational Gradient in Tropical China | |
Razaq, Mohsin1; Huang, Qicheng1; Wang, Feijun1; Liu, Changan; Gnanamoorthy, Palingamoorthy2; Liu, Chenggang1; Tang, Jianwei
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| 2024 | |
| Source Publication | FORESTS
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| ISSN | 1999-4907 |
| Volume | 15Issue:11Pages:- |
| Abstract | Carbon (C) losses due to the conversion of natural forests adversely affect the biotic and abiotic components of terrestrial ecosystems. In tropical China, rubber cultivation often extends from its traditional range to elevations of up to 1400 m. However, C stock in rubber plantations along elevation gradients is poorly understood. In this study, we investigated biomass and C stock along elevation gradients in two age groups (8- and 12-year-old) of rubber monoculture plantations in Xishuangbanna, Southwest China. The C distribution across various tree sections, ranging from aboveground biomass (AGB) to belowground biomass (BGB), including litter, big dead branches, and different soil depths were measured. A significant negative correlation was observed between AGB, BGB, litter, and total ecosystem C stocks and elevation gradients in both age groups. However, no correlation was observed between the total soil C stock and elevation gradients in 8-year-old rubber plantations, while significant decline was detected in 12-year-old rubber plantations. The highest ecosystem C stock of 197.90 Mg C ha-1 was recorded at 900 m in 8-year-old plantations; whereas, in 12-year-old rubber plantations, the highest value of 183.12 Mg C ha-1 was found at 700 m. The total ecosystem C stock decreased to their lowest level at 1000 m in both the 8-year-old and 12-year-old plantations, ranging between 113.05 Mg C ha-1 and 125.75 Mg C ha-1, respectively. Moreover, total ecosystem C stock significantly decreased from 51.55% to 8.05% and from 42.96% to 11.46% between 700 m and 1100 m, in both 8-year-old and 12-year-old plantations, respectively. Regardless of elevation gradients, the total ecosystem C stock of 12-year-old rubber plantations was 1.98% greater than that of 8-year-old rubber plantations. Biomass was the second largest contributor, while soil accounted for 82% to 90%, and the other components contributed less than 2% of the total ecosystem C stock in both age groups. These fluctuations in C stock along elevation gradients in both 8- and 12-year-old plantations suggested that rubber growth, biomass, and C stock capacity decreased above 900 m, and that age and elevation are key factors for biomass and C stock in rubber monoculture plantations. |
| Keyword | elevation gradients age effect rubber monoculture plantations carbon stock |
| Subject Area | Forestry |
| DOI | 10.3390/f15111933 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001366879800001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/14553 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.Chinese Acad Sci, CAS Key Lab Trop Plant Resources & Sustainable Use, Xishuangbanna Trop Bot Garden, Menglun 666303, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Menglun 666303, Peoples R China |
| Recommended Citation GB/T 7714 | Razaq, Mohsin,Huang, Qicheng,Wang, Feijun,et al. Carbon Stock Dynamics in Rubber Plantations Along an Elevational Gradient in Tropical China[J]. FORESTS,2024,15(11):-. |
| APA | Razaq, Mohsin.,Huang, Qicheng.,Wang, Feijun.,Liu, Changan.,Gnanamoorthy, Palingamoorthy.,...&Tang, Jianwei.(2024).Carbon Stock Dynamics in Rubber Plantations Along an Elevational Gradient in Tropical China.FORESTS,15(11),-. |
| MLA | Razaq, Mohsin,et al."Carbon Stock Dynamics in Rubber Plantations Along an Elevational Gradient in Tropical China".FORESTS 15.11(2024):-. |
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| Carbon Stock Dynamic（3211KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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