干旱区生态环境知识资源中心(Arid): Carbon, Nitrogen, and Sulfur Elemental Fluxes in the Soil and Exchanges with the Atmosphere in Australian Tropical, Temperate, and Arid Wetlands

Arid

DOI	10.3390/atmos12010042
	Carbon, Nitrogen, and Sulfur Elemental Fluxes in the Soil and Exchanges with the Atmosphere in Australian Tropical, Temperate, and Arid Wetlands
	Pasut, Chiara; Tang, Fiona H. M.; Hamilton, David P.; Maggi, Federico
通讯作者	Pasut, C (corresponding author), Univ Sydney, Sch Civil Engn, Lab Adv Environm Engn Res, Bld J05, Sydney, NSW 2006, Australia.
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2021
卷号	12 期号:1
英文摘要	Australian ecosystems, particularly wetlands, are facing new and extreme threats due to climate change, land use, and other human interventions. However, more fundamental knowledge is required to understand how nutrient turnover in wetlands is affected. In this study, we deployed a mechanistic biogeochemical model of carbon (C), nitrogen (N), and sulfur (S) cycles at 0.25 degrees x 0.25 degrees spatial resolution across wetlands in Australia. Our modeling was used to assess nutrient inputs to soil, elemental nutrient fluxes across the soil organic and mineral pools, and greenhouse gas (GHG) emissions in different climatic areas. In the decade 2008-2017, we estimated an average annual emission of 5.12 Tg-CH4, 90.89 Tg-CO2, and 2.34 x 10(-2) Tg-N2O. Temperate wetlands in Australia have three times more N2O emissions than tropical wetlands as a result of fertilization, despite similar total area extension. Tasmania wetlands have the highest areal GHG emission rates. C fluxes in soil depend strongly on hydroclimatic factors; they are mainly controlled by anaerobic respiration in temperate and tropical regions and by aerobic respiration in arid regions. In contrast, N and S fluxes are mostly governed by plant uptake regardless of the region and season. The new knowledge from this study may help design conservation and adaptation plans to climate change and better protect the Australian wetland ecosystem.
英文关键词	wetlands modeling GHG nutrient fluxes Australia C cycle N cycle S cycle
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000609750900001
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347739
作者单位	[Pasut, Chiara; Tang, Fiona H. M.; Maggi, Federico] Univ Sydney, Sch Civil Engn, Lab Adv Environm Engn Res, Bld J05, Sydney, NSW 2006, Australia; [Hamilton, David P.] Griffith Univ, Australian Rivers Inst, Brisbane, Qld 4111, Australia
推荐引用方式 GB/T 7714	Pasut, Chiara,Tang, Fiona H. M.,Hamilton, David P.,et al. Carbon, Nitrogen, and Sulfur Elemental Fluxes in the Soil and Exchanges with the Atmosphere in Australian Tropical, Temperate, and Arid Wetlands[J],2021,12(1).
APA	Pasut, Chiara,Tang, Fiona H. M.,Hamilton, David P.,&Maggi, Federico.(2021).Carbon, Nitrogen, and Sulfur Elemental Fluxes in the Soil and Exchanges with the Atmosphere in Australian Tropical, Temperate, and Arid Wetlands.ATMOSPHERE,12(1).
MLA	Pasut, Chiara,et al."Carbon, Nitrogen, and Sulfur Elemental Fluxes in the Soil and Exchanges with the Atmosphere in Australian Tropical, Temperate, and Arid Wetlands".ATMOSPHERE 12.1(2021).