干旱区生态环境知识资源中心(Arid): Influence of vegetation cover and rainfall intensity on soil attributes in an area undergoing desertification in Brazil

Arid

DOI	10.1016/j.catena.2022.106751
	Influence of vegetation cover and rainfall intensity on soil attributes in an area undergoing desertification in Brazil
	Lins, Cintia Maria Teixeira; de Souza, Edivan Rodrigues; Souza, Thais Emanuelle Monteiro dos Santos; Paulino, Martha Katharinne Silva Souza; Monteiro, Danilo Rodrigues; de Souza Junior, Valdomiro Severino; Dourado, Pablo Rugero Magalhaes; Rego Junior, Francisco Ernesto de Andrade; da Silva, Yuri Jacques Agra; Schaffer, Bruce
通讯作者	de Souza, ER
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2023
卷号	221
英文摘要	Desertification is a major environmental problem in arid, semiarid, and dry sub-humid regions throughout the world, which causes considerable reductions of ecosystem services, increased food insecurity, and poverty. The influence of vegetation cover and rainfall intensity on the dynamics of water infiltration, surface runoff, and soil loss was measured in situ in a desertification zone in the semi-arid region of Brazil. Twenty-four plots were evaluated in two areas, each with the same type of soil that is predominant in the region: 1) Luvisol with dense vegetation cover (LD) and 2) Luvisol with sparse vegetation cover (LS). A rainfall simulator was used to simulate either 60 or 100 mm h-1 of rainfall. Soil hydraulic conductivity, soil water retention curves, and soil carbon and nitrogen stocks were also determined. Water infiltration was greater in the LD (53 mm h-1) than in the LS (15 mm h-1), while the runoff rates were 27 mm h-1 for the LD and 61 mm h-1 for the LS. Rainfall intensity significantly influenced the time when runoff started and the runoff rate accelerated soil loss. Vegetation cover significantly influenced the total soil carbon and nitrogen stocks, as well as the saturated hydraulic conductivity of the soil. This is the first study in a semi-arid desertification zone of Brazil that used simulated rainfall to determine effects rain intensity on soil properties. The results of this study can be used as a reference for cali-brating erosion models in areas undergoing a desertification process.
英文关键词	Luvisol Hydraulic conductivity Erosivity Rainfall simulation Erosion Carbon stock
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000892286600001
WOS关键词	ORGANIC-CARBON ; HYDRAULIC CONDUCTIVITY ; LAND-USE ; EROSION ; RUNOFF
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395659
推荐引用方式 GB/T 7714	Lins, Cintia Maria Teixeira,de Souza, Edivan Rodrigues,Souza, Thais Emanuelle Monteiro dos Santos,et al. Influence of vegetation cover and rainfall intensity on soil attributes in an area undergoing desertification in Brazil[J],2023,221.
APA	Lins, Cintia Maria Teixeira.,de Souza, Edivan Rodrigues.,Souza, Thais Emanuelle Monteiro dos Santos.,Paulino, Martha Katharinne Silva Souza.,Monteiro, Danilo Rodrigues.,...&Schaffer, Bruce.(2023).Influence of vegetation cover and rainfall intensity on soil attributes in an area undergoing desertification in Brazil.CATENA,221.
MLA	Lins, Cintia Maria Teixeira,et al."Influence of vegetation cover and rainfall intensity on soil attributes in an area undergoing desertification in Brazil".CATENA 221(2023).