干旱区生态环境知识资源中心(Arid): Seasonal variation of surface radiation and energy balances over two contrasting areas of the seasonally dry tropical forest (Caatinga) in the Brazilian semi-arid

Arid

DOI	10.1007/s10661-020-08484-y
	Seasonal variation of surface radiation and energy balances over two contrasting areas of the seasonally dry tropical forest (Caatinga) in the Brazilian semi-arid
	Borges, Camilla K.; dos Santos, Carlos A. C.; Carneiro, Rayonil G.; da Silva, Lindenberg L.; de Oliveira, Gabriel; Mariano, Denis; Silva, Madson T.; da Silva, Bernardo B.; Bezerra, Bergson G.; Perez-Marin, Aldrin M.; Medeiros, Salomao de S.
通讯作者	dos Santos, CAC
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
EISSN	1573-2959
出版年	2020
卷号	192 期号:8
英文摘要	Arid and semi-arid environments correspond to one-third of the Earth's terrestrial surface. In these environments, precipitation is an essential and limiting element for vegetation growth and ecosystem biomass productivity. The semi-arid region of Brazil comprises around 11.5% of the national territory, where the Caatinga biome originally composed similar to 76% of this area, with water deficit as a prominent feature, annual rainfall lower than 800 mm, temperatures ranging between 25 and 30 degrees C, and potential evapotranspiration higher than 2000 mm/year. Research on the dynamics of mass and heat fluxes through techniques such as eddy covariance (EC) has contributed to estimate the magnitude and seasonal patterns of turbulent exchanges between ecosystems and the atmosphere. This study was conducted in an area of dense Caatinga (DC) and another of sparse Caatinga (SC) from 2013 to 2014. It was observed that albedo (alpha) and net radiation (R-n) were higher in the SC compared with DC since the magnitude of incoming shortwave radiation was higher in this area. It was found that most of the R-n is converted to sensible heat flux (H), mainly during the dry period in the SC, about 50% for H and 20% for lambda E. The energy balance closure showed that the turbulent fluxes (H + lambda E) were underestimated in comparison to the available energy at the surface (R-n - G). We also observed that this discrepancy was higher in the DC area, corresponding to similar to 30%.
英文关键词	Semi-arid Drought Land degradation Turbulent fluxes Energy balance closure
类型	Review
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000552413500002
WOS关键词	CARBON-DIOXIDE EXCHANGE ; WATER-VAPOR ; CO2 FLUXES ; NORTHEAST BRAZIL ; TYPICAL STEPPE ; INNER-MONGOLIA ; CLOSURE ; HEAT ; DESERTIFICATION ; ECOSYSTEMS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325212
作者单位	[Borges, Camilla K.; dos Santos, Carlos A. C.; da Silva, Lindenberg L.; Silva, Madson T.; da Silva, Bernardo B.] Univ Fed Campina Grande, Acad Unit Atmospher Sci, BR-58109970 Campina Grande, Paraiba, Brazil; [Carneiro, Rayonil G.] Natl Inst Space Res, Sao Jose Dos Campos, SP, Brazil; [de Oliveira, Gabriel] Univ Toronto, Dept Geog & Planning, Toronto, ON, Canada; [Mariano, Denis] FUNCEME, Res Inst Meteorol & Water Resources, Fortaleza, Ceara, Brazil; [Bezerra, Bergson G.] Univ Fed Rio Grande do Norte, Dept Atmospher & Climate Sci, Natal, RN, Brazil; [Perez-Marin, Aldrin M.; Medeiros, Salomao de S.] Natl Inst Semiarid, Campina Grande, Paraiba, Brazil
推荐引用方式 GB/T 7714	Borges, Camilla K.,dos Santos, Carlos A. C.,Carneiro, Rayonil G.,et al. Seasonal variation of surface radiation and energy balances over two contrasting areas of the seasonally dry tropical forest (Caatinga) in the Brazilian semi-arid[J],2020,192(8).
APA	Borges, Camilla K..,dos Santos, Carlos A. C..,Carneiro, Rayonil G..,da Silva, Lindenberg L..,de Oliveira, Gabriel.,...&Medeiros, Salomao de S..(2020).Seasonal variation of surface radiation and energy balances over two contrasting areas of the seasonally dry tropical forest (Caatinga) in the Brazilian semi-arid.ENVIRONMENTAL MONITORING AND ASSESSMENT,192(8).
MLA	Borges, Camilla K.,et al."Seasonal variation of surface radiation and energy balances over two contrasting areas of the seasonally dry tropical forest (Caatinga) in the Brazilian semi-arid".ENVIRONMENTAL MONITORING AND ASSESSMENT 192.8(2020).