干旱区生态环境知识资源中心(Arid): Grazing exclusion restores soil health in Brazilian drylands under desertification process

Arid

DOI	10.1016/j.apsoil.2023.105107
	Grazing exclusion restores soil health in Brazilian drylands under desertification process
	Lima, Antonio Yan Viana; Cherubin, Mauricio Roberto; da Silva, Danilo Ferreira; Mota, Jaedson Claudio Anunciato; Silva, Francisco Gilcivan Moreira; de Araujo, Ademir Sergio Ferreira; Melo, Vania Maria Maciel; Verma, Jay Prakash; Pereira, Arthur Prudencio de Araujo
通讯作者	Pereira, APD
来源期刊	APPLIED SOIL ECOLOGY
ISSN	0929-1393
EISSN	1873-0272
出版年	2024
卷号	193
英文摘要	The Brazilian drylands (Caatinga biome) are facing accelerated soil desertification due to human activities (e.g., overgrazing). However, restoration practices (e.g., grazing exclusion), are promising to curb soil desertification and, eventually, increase soil functioning. However, the understanding of soil health (SH) changes, induced by desertification and restoration in the Caatinga biome remains, poorly understood. Here, the SMAF (Soil Man-agement Assessment Framework) was applied to assess the impact of desertification and long-term grazing exclusion on the SH in the Caatinga biome. Three conditions were assessed: i) native vegetation (NV), ii) degraded soil by overgrazing (DE) and iii) restored soil by grazing exclusion (RE). Soil samples (0-10 cm) were collected in both rainy and dry seasons, and chemical (pH, sodium adsorption ratio (SAR), K+, and P), physical (bulk soil density), and biological (soil organic carbon (SOC), microbial biomass carbon (MBC), and beta-glucosi-dase activity) indicators were analyzed. Then, integrated soil health indexes (SHI) were calculated using the SMAF algorithms. Briefly, DE reduced (0.44 and 0.47 in rainy and dry seasons, respectively) the SHI compared to NV (0.72 and 0.82 in rainy and dry seasons, respectively). Importantly, RE recovered SH after two decades of implantation (0.65 and 0.79 in rainy and dry seasons, respectively). Bulk soil density and SAR were the in-dicators that presented a higher negative correlation with SH, mainly in DE, while SOC, MBC, and beta-glucosidase activity correlated with SH in NV and RE soils. Biological soil health indicators increased in dry season, which may be due to the deciduous behavior of Caatinga vegetation, which could intensify microbial activity. We provided novel evidence that SMAF can be a user-friendly tool to monitor changes in SH under Brazilian drylands soils. In addition, long-term grazing exclusion can restore SH, contributing to curbing the desertification process in the region.
英文关键词	Soil management Soil quality Land degradation Brazilian semiarid Ecosystem restoration
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:001115597800001
WOS关键词	MANAGEMENT ASSESSMENT FRAMEWORK ; QUALITY ; SMAF ; ECOSYSTEMS
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402881
推荐引用方式 GB/T 7714	Lima, Antonio Yan Viana,Cherubin, Mauricio Roberto,da Silva, Danilo Ferreira,et al. Grazing exclusion restores soil health in Brazilian drylands under desertification process[J],2024,193.
APA	Lima, Antonio Yan Viana.,Cherubin, Mauricio Roberto.,da Silva, Danilo Ferreira.,Mota, Jaedson Claudio Anunciato.,Silva, Francisco Gilcivan Moreira.,...&Pereira, Arthur Prudencio de Araujo.(2024).Grazing exclusion restores soil health in Brazilian drylands under desertification process.APPLIED SOIL ECOLOGY,193.
MLA	Lima, Antonio Yan Viana,et al."Grazing exclusion restores soil health in Brazilian drylands under desertification process".APPLIED SOIL ECOLOGY 193(2024).