Seasonal variations of net ecosystem (CO2) exchange in the Indian tropical mangrove forest of Pichavaram | |
Gnanamoorthy, Palingamoorthy1; Selvam, V; Burman, Pramit Kumar Deb; Chakraborty, S.; Karipot, A.; Nagarajan, R.; Ramasubramanian, R.; Song, Qinghai1; Zhang, Yiping1; Grace, John4 | |
刊名 | ESTUARINE COASTAL AND SHELF SCIENCE |
2020 | |
卷号 | 243期号:x页码:- |
关键词 | Mangrove wetland Carbon exchange Net ecosystem productivity Eddy covariance |
ISSN号 | 0272-7714 |
DOI | 10.1016/jecss.2020.106828 |
英文摘要 | Mangrove ecosystems play a crucial role in the global carbon cycle. However, the carbon fluxes in the mangrove ecosystems found in the Indian subcontinent are not well understood. Here, for the first time, we estimate the net ecosystem exchange (NEE) in a mangrove ecosystem at Pichavaram, southeast India, using the eddy covariance method for the period October 2017-September 2018. The half-hourly daytime NEE varied from-11.05 mu mol m(-2) s(-1) in the winter months (January-March 2018) to -6.06 mu mol m(-2) s(-1) during the summer (April 2018). The estimated annual evapotranspiration during the study period was 610 mm, whereas the precipitation was 653 mm (much dryer than the long-term average). The half-hourly NEE data were gap filled and partitioned to estimate the gross primary productivity (GPP) and ecosystem respiration (Reco). The estimated annual GPP was 1466 gC m(-2) and Reco was 1283 gC m(-2). The mangrove forest appeared to be a modest sink of atmospheric CO2, with an annual average net ecosystem productivity of 183 gC m(-2). However, in the summer months, it acted as a source. We observed that the mangrove CO2 fluxes strongly responded to environmental factors such as temperature, rainfall, and salinity. However, it is noteworthy that the carbon sink capability may decline in the future due to rising temperatures, decreasing rainfall patterns, variation in salinity, and changes in tidal inundation patterns. |
学科主题 | Marine & Freshwater Biology ; Oceanography |
语种 | 英语 |
WOS记录号 | WOS:000571536700006 |
内容类型 | 期刊论文 |
源URL | [http://ir.xtbg.org.cn/handle/353005/11899] |
专题 | 西双版纳热带植物园_全球变化研究组 |
作者单位 | 1.Burman, Pramit Kumar Deb; Chakraborty, S.; Karipot, A.] Savitribai Phule Pune Univ, Dept Atmospher & Space Sci, Pune, Maharashtra, India 2.[Gnanamoorthy, Palingamoorthy; Selvam, V; Nagarajan, R.; Ramasubramanian, R.] MS Swaminathan Res Fdn, Coastal Syst Res, Chennai, Tamil Nadu, India 3.Univ Edinburgh, Sch GeoSci, Edinburgh EH9 3FF, Midlothian, Scotland 4.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, CAS, Menglun, Peoples R China 5.Burman, Pramit Kumar Deb; Chakraborty, S.] Indian Inst Trop Meteorol, Ctr Climate Change Res, Minist Earth Sci MoEs, Pune, Maharashtra, India |
推荐引用方式 GB/T 7714 | Gnanamoorthy, Palingamoorthy,Selvam, V,Burman, Pramit Kumar Deb,et al. Seasonal variations of net ecosystem (CO2) exchange in the Indian tropical mangrove forest of Pichavaram[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2020,243(x):-. |
APA | Gnanamoorthy, Palingamoorthy.,Selvam, V.,Burman, Pramit Kumar Deb.,Chakraborty, S..,Karipot, A..,...&Grace, John.(2020).Seasonal variations of net ecosystem (CO2) exchange in the Indian tropical mangrove forest of Pichavaram.ESTUARINE COASTAL AND SHELF SCIENCE,243(x),-. |
MLA | Gnanamoorthy, Palingamoorthy,et al."Seasonal variations of net ecosystem (CO2) exchange in the Indian tropical mangrove forest of Pichavaram".ESTUARINE COASTAL AND SHELF SCIENCE 243.x(2020):-. |
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