干旱区生态环境知识资源中心(Arid): Seasonal patterns of deposition litterfall in a seasonal dry tropical forest

Arid

DOI	10.1016/j.agrformet.2019.107712
	Seasonal patterns of deposition litterfall in a seasonal dry tropical forest
	de Queiroz, Maria Gabriela 1; Freire da Silva, Thieres George 2,3; Zolnier, Sergio 1; Alves de Souza, Carlos Andre 3; Bastos de Souza, Luciana Sandra 2; Steidle Neto, Antonio Jose 4; Leal de Araujo, Gherman Garcia 5; Marques Ferreira, Williams Pinto 6
通讯作者	Freire da Silva, Thieres George
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2019
卷号	279
英文摘要	The Caatinga Domain is exclusively Brazilian, covered by vegetation exhibiting a great diversity of species, which have morphological and physiological characteristics determined by environmental conditions. These attributes define quantity and quality litterfall deposition on the soil. The litterfall deposition seasonality was monitored a fragment of Caatinga vegetation, located in the semiarid region of Brazil, from 2016 to 2017. The decomposition rate, mean residence time for litterfall (50 and 95%), and the exportation of mineral nutrients via deciduous material were determined. Data from meteorological variables and litterfall were used in the elaboration of Pearson's correlation matrix, and multicollinearity, canonical and path analyzes. The Caatinga deposited on average 637 kg DM (dry mass) ha(-1) year(-1) litterfall, including 53% leaves, 26% twigs, 15% reproductive structures and 6% miscellanea, with deposition peaks between the months of March and July, with values above 57 kg MS ha(-1). Global solar radiation, vapor pressure deficit, soil heat flux, rainfall and normalized difference vegetation index are controlling factors the litterfall deposition. The decomposition rate of the litterfall was 0.33 kg DM ha(-1) year(-1), while the time required for the disappearance of 50% and 95% of the litterfall was respectively 2.1 and 9.1 years, and the exportation of nutrients was 13.59 kg ha(-1) year(-1). Litterfall deposition was determined by the environmental conditions and physiological responses of the vegetation, which are fundamental to maintaining the Caatinga Domain.
英文关键词	Semi-arid region Caatinga Environmental variables Process of decomposition Seasonal pattern
类型	Article
语种	英语
国家	Brazil
收录类别	SCI-E
WOS记录号	WOS:000500197400023
WOS关键词	CAATINGA ; DECOMPOSITION ; CALIBRATION ; ECOSYSTEMS ; VEGETATION ; DYNAMICS ; STORAGE
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
EI主题词	2019-12-15
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311737
作者单位	1.Univ Fed Vicosa, Dept Agr Engn, Vicosa, MG, Brazil; 2.Univ Fed Rural Pernambuco, Agrometeorol Lab, Unidade Acad Serra Talhada, Serra Talhada, PE, Brazil; 3.Univ Fed Rural Pernambuco, Dept Agr Engn, Recife, PE, Brazil; 4.Univ Fed Sao Joao Del Rei, Dept Agr Sci, Sete Lagoas, MG, Brazil; 5.Empresa Brasileira Pesquisa Agr, Semiarid Res Ctr, Petrolina, PE, Brazil; 6.Empresa Brasileira Pesquisa Agr, Natl Coffee Res Ctr, Vicosa, MG, Brazil
推荐引用方式 GB/T 7714	de Queiroz, Maria Gabriela,Freire da Silva, Thieres George,Zolnier, Sergio,et al. Seasonal patterns of deposition litterfall in a seasonal dry tropical forest[J],2019,279.
APA	de Queiroz, Maria Gabriela.,Freire da Silva, Thieres George.,Zolnier, Sergio.,Alves de Souza, Carlos Andre.,Bastos de Souza, Luciana Sandra.,...&Marques Ferreira, Williams Pinto.(2019).Seasonal patterns of deposition litterfall in a seasonal dry tropical forest.AGRICULTURAL AND FOREST METEOROLOGY,279.
MLA	de Queiroz, Maria Gabriela,et al."Seasonal patterns of deposition litterfall in a seasonal dry tropical forest".AGRICULTURAL AND FOREST METEOROLOGY 279(2019).