Climate Change Data Portal
DOI | 10.1002/ece3.5504 |
Carbon dynamics and environmental controls of a hilly tea plantation in Southeast China | |
Pang, Jiaping1; Li, Hengpeng1; Tang, Xuguang2; Geng, Jianwei1,3 | |
发表日期 | 2019 |
ISSN | 2045-7758 |
卷号 | 9期号:17页码:9723-9735 |
英文摘要 | Tea plantations are widely distributed and continuously expanding across subtropical China in recent years. However, carbon flux exchanges from tea plantation ecosystems are poorly understood at the ecosystem level. In this study, we use the eddy covariance technique to quantify the magnitude and temporal variations of the net ecosystem exchange (NEE) in tea plantation in Southeast China over four years (2014-2017). The result showed that the tea plantation was a net carbon sink, with an annual NEE that ranged from -182.40 to -301.51 g C/m(2), which was a much lower carbon sequestration potential than other ecosystems in subtropical China. Photosynthetic photon flux density (PPFD) explained the highest proportion of the variation in NEE and gross primary productivity (GPP) (for NEE: F = 389.89, p F = 1,018.04, p < .01), and air temperature (T-a) explained the highest proportion of the variation in ecosystem respiration (RE) (F = 13,141.81, p < .01). The strong pruning activity in April not only reduced the carbon absorption capacity but also provided many plant residues for respiration, which switched the tea plantation to a carbon source from April to June. Suppression of NEE at higher air temperatures was due to the decrease in GPP more than the decrease in RE, which indicated that future global warming may transform this subtropical tea plantation from a carbon sink to carbon source. |
WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
来源期刊 | ECOLOGY AND EVOLUTION
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/100837 |
作者单位 | 1.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Key Lab Watershed Geog Sci, Nanjing 21008, Jiangsu, Peoples R China; 2.Southwest Univ, Sch Geog Sci, Chongqing Key Lab Karst Environm, Chongqing, Peoples R China; 3.Univ Chinese Acad Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Pang, Jiaping,Li, Hengpeng,Tang, Xuguang,et al. Carbon dynamics and environmental controls of a hilly tea plantation in Southeast China[J],2019,9(17):9723-9735. |
APA | Pang, Jiaping,Li, Hengpeng,Tang, Xuguang,&Geng, Jianwei.(2019).Carbon dynamics and environmental controls of a hilly tea plantation in Southeast China.ECOLOGY AND EVOLUTION,9(17),9723-9735. |
MLA | Pang, Jiaping,et al."Carbon dynamics and environmental controls of a hilly tea plantation in Southeast China".ECOLOGY AND EVOLUTION 9.17(2019):9723-9735. |
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