干旱区生态环境知识资源中心(Arid): Space variability of the seed bank in area of Caatinga in the Northeastern region of Brazil

Arid

DOI	10.5902/1980509840039
	Space variability of the seed bank in area of Caatinga in the Northeastern region of Brazil
	da Silva Santos, Angeline Maria 1; Alcantara Bruno, Riselane de Lucena 2; Cruz, Jose de Oliveira 3; da Silva, Ivandro de Franca 4; de Andrade, Albericio Pereira 5
通讯作者	da Silva Santos, Angeline Maria
来源期刊	CIENCIA FLORESTAL
ISSN	0103-9954
EISSN	1980-5098
出版年	2020
卷号	30 期号:2 页码:542-555
英文摘要	The seed bank in soil is one of the main long-term survival strategies of plant communities in the view of seasonality and irregularity of rainfall in arid and semiarid areas. Considering strong variation in seed bank richness and density in these environments, this study aims to evaluate the spatial variation of seed bank in an area of Caatinga, in northeastern Brazil, determining its floristic composition and germination density. The selected area was a temporary lagoon in the Cariri region of Paraiba state, with highly anthropized vegetation, due to various uses over time. At each cardinal point, taking the center of the lagoon as a reference, soil samples were taken from the seed bank. All material collected was distributed in plastic trays and irrigated daily. The determination of seed density in the soil bank was performed by the seedling emergence method and expressed in seeds.m-(2). The flora of the Caatinga soil seed bank was represented in this study by 26 species and three morphospecies, distributed in 11 families and 26 genera, among them the Poaceae and Asteraceae families with the largest number of species. The main life form of the seed bank was herbaceous and the average density of the study area was 2,942 seeds.m-2 (lagoon) and 3,826 seeds.m-2 (in the surroundings) and after water stress was 732 seeds.m-2 and 1,208 seeds.m-2, in and around the lagoon areas, respectively. The area surrounding the lagoon has the highest plant density per m(2) and the highest diversity of species. In addition, the northern direction in both areas presented lower seed density.
英文关键词	Caatinga Herbaceous stratum Temporary lagoon Species richness Semiarid
类型	Article
语种	葡萄牙语
国家	Brazil
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000549396600020
WOS关键词	SPECIES RICHNESS ; SOIL ; GERMINATION ; VEGETATION ; DORMANCY ; DENSITY ; DESERT ; SIZE
WOS类目	Plant Sciences ; Forestry
WOS研究方向	Plant Sciences ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319459
作者单位	1.Univ Fed Paraiba, Programa Posgrad Agron, PNPD CAPES, Campus 2,Rod PB 079,Km 12,Caixa Postal 66, BR-58397000 Areia, PB, Brazil; 2.Univ Fed Paraiba, Dept Fitotecnia & Ciencias Ambientais, Ctr Ciencias Agr, Rodovia PB-079,Km 12,Cx Postal 66, BR-58397000 Areia, PB, Brazil; 3.Univ Brasilia, Agron, BR-70910900 Brasilia, DF, Brazil; 4.Univ Fed Paraiba, Dept Solos & Engn Rural, Campus 2,Ii,Rod PB 079,Km 12,Caixa Postal 66, BR-58397000 Areia, PB, Brazil; 5.Univ Fed Rural Pernambuco, Unidade Acad Garanhuns, Ave Bom Pastor, BR-55292270 Garanhuns, PE, Brazil
推荐引用方式 GB/T 7714	da Silva Santos, Angeline Maria,Alcantara Bruno, Riselane de Lucena,Cruz, Jose de Oliveira,et al. Space variability of the seed bank in area of Caatinga in the Northeastern region of Brazil[J],2020,30(2):542-555.
APA	da Silva Santos, Angeline Maria,Alcantara Bruno, Riselane de Lucena,Cruz, Jose de Oliveira,da Silva, Ivandro de Franca,&de Andrade, Albericio Pereira.(2020).Space variability of the seed bank in area of Caatinga in the Northeastern region of Brazil.CIENCIA FLORESTAL,30(2),542-555.
MLA	da Silva Santos, Angeline Maria,et al."Space variability of the seed bank in area of Caatinga in the Northeastern region of Brazil".CIENCIA FLORESTAL 30.2(2020):542-555.