干旱区生态环境知识资源中心(Arid): Assessing the effects of 17 years of grazing exclusion in degraded semi-arid soils: Evaluation of soil fertility, nutrients pools and stoichiometry

Arid

DOI	10.1016/j.jaridenv.2019.03.006
	Assessing the effects of 17 years of grazing exclusion in degraded semi-arid soils: Evaluation of soil fertility, nutrients pools and stoichiometry
	Oliveira Filho, Jose de Souza 1; Vieira, Jonas Nunes 2; Ribeiro da Silva, Eliane Maria 3; Beserra de Oliveira, Jose Gerardo 4; Pereira, Marcos Gervasio 2; Brasileiro, Felipe Gomes 2
通讯作者	Oliveira Filho, Jose de Souza
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2019
卷号	166 页码:1-10
英文摘要	Grazing exclusion (GE) has been used as a strategy to restore degraded pastures worldwide. In this study, the effects of 17 years of GE on a) soil fertility, b) stoichiometric ratios between soil nutrients and c) carbon (C) and nitrogen (N) storage in particulate and mineral-associated organic matter soil fractions were assessed in an area degraded by overgrazing (OG) in a semi-arid region in Brazil. For this purpose, three sites with two treatments (exclusion and overgrazing) were studied at three sampling depths (0-10, 10-20 and 20-40 cm). Our results showed that pH, total organic carbon, particulate organic carbon, total N, particulate organic nitrogen, Ca2+ and K+ increased, whereas the Al3+ content decreased with GE. Conversely, the available P content, Mg2+ and Na+ showed no significant variations as a function of GE. A relatively constant C:N:P ratio (30:4:1) was observed, with little variation as a function of GE or OG, indicating a high total P content in the soil. Labile fractions (particulate) of C and N increased with GE. According to our results, GE can be used as a strategy to restore degraded natural pastures in arid and semi-arid ecosystems.
英文关键词	Dryland Land degradation Overgrazing Rangeland Degraded forest Nutrient cycling
类型	Article
语种	英语
国家	Brazil
收录类别	SCI-E
WOS记录号	WOS:000470193300001
WOS关键词	CARBON SEQUESTRATION ; ALPINE GRASSLAND ; C STOCKS ; ECOSYSTEMS ; MANAGEMENT ; VEGETATION ; DYNAMICS ; EXCLOSURE ; NITROGEN ; TIBET
WOS类目	Ecology ; 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/2XILL650/216750
作者单位	1.Univ Fed Rural Rio De Janeiro, Programa Posgrad Ciencias Ambientais & Florestais, BR 465 Km 7, BR-23897000 Seropedica, RJ, Brazil; 2.Univ Fed Rural Rio De Janeiro, Dept Solos, BR 465 Km 7, BR-23897000 Seropedica, RJ, Brazil; 3.Embrapa Agrobiol, BR 465 Km 7, BR-23897000 Seropedica, RJ, Brazil; 4.Univ Fed Ceara, Ctr Ciencias, Dept Biol, Campus Pici,Bloco 906, BR-60455970 Fortaleza, CE, Brazil
推荐引用方式 GB/T 7714	Oliveira Filho, Jose de Souza,Vieira, Jonas Nunes,Ribeiro da Silva, Eliane Maria,et al. Assessing the effects of 17 years of grazing exclusion in degraded semi-arid soils: Evaluation of soil fertility, nutrients pools and stoichiometry[J],2019,166:1-10.
APA	Oliveira Filho, Jose de Souza,Vieira, Jonas Nunes,Ribeiro da Silva, Eliane Maria,Beserra de Oliveira, Jose Gerardo,Pereira, Marcos Gervasio,&Brasileiro, Felipe Gomes.(2019).Assessing the effects of 17 years of grazing exclusion in degraded semi-arid soils: Evaluation of soil fertility, nutrients pools and stoichiometry.JOURNAL OF ARID ENVIRONMENTS,166,1-10.
MLA	Oliveira Filho, Jose de Souza,et al."Assessing the effects of 17 years of grazing exclusion in degraded semi-arid soils: Evaluation of soil fertility, nutrients pools and stoichiometry".JOURNAL OF ARID ENVIRONMENTS 166(2019):1-10.