干旱区生态环境知识资源中心(Arid): Litter decomposition and nutrient release in different land use systems in the Brazilian semi-arid region

Arid

DOI	10.1016/j.catena.2023.107345
	Litter decomposition and nutrient release in different land use systems in the Brazilian semi-arid region
	Pereira, David Gabriel Campos; Portugal, Arley Figueiredo; Giustolin, Teresinha Augusta; Maia, Victor Martins; Megda, Michele Xavier Vieira; Kondo, Marcos Koiti
通讯作者	Pereira, DGC
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2023
卷号	231
英文摘要	Climate and litter quality change the dynamics of soil organic matter (SOM) in agricultural systems, directly influencing the soil biological activity and, consequently, energy and nutrient cycling. This work evaluated the dynamics of organic carbon decomposition and nutrient release in litter in three land use management systems. The study was carried out under semi-arid conditions in Minas Gerais State, Brazil, using decomposition bags arranged in a randomized block design and four replications. The treatments consisted of three land use systems (native forest, corn, and cocoa) and seven evaluation times: 0, 30, 90, 150, 210, 270, and 330 days. Was evaluated dry matter production, litter decomposition in polyamide bags, and nutrient release (N, P, K, S, Ca, and Mg). Systems with native forest, cocoa and maize had similar average monthly litter production, a fact linked to the climate conditions. While in the semi-arid climate, the full-sun cocoa system showed a sudden oscillation in relation to the organic carbon content up to 330 days, the native forest and corn systems were more balanced, whitout significant changes. The higher litter C/N ratio in relation to the native and corn systems favors the maintenance of organic C levels in the soil. K release has a similar behavior in cultivated soils and occurs more quickly when compared to the native system. Regarding the other macronutrients, the soil in the cocoa production system showed the highest mineralization. Periods of accumulated precipitation accelerate litter decomposition and macronutrient release. The results of this study give more insight into the carbon dynamics and nutrient release from litter as a function of land use systems in a semi-arid region.
英文关键词	Cocoa Corn Native forest Litter bags
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001032714400001
WOS关键词	SOIL ORGANIC-MATTER ; PLANT COVER ; DRY FOREST ; NITROGEN ; CARBON ; POTASSIUM ; FRACTIONS ; TILLAGE ; PHOSPHORUS ; DYNAMICS
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/2XILL650/395699
推荐引用方式 GB/T 7714	Pereira, David Gabriel Campos,Portugal, Arley Figueiredo,Giustolin, Teresinha Augusta,et al. Litter decomposition and nutrient release in different land use systems in the Brazilian semi-arid region[J],2023,231.
APA	Pereira, David Gabriel Campos,Portugal, Arley Figueiredo,Giustolin, Teresinha Augusta,Maia, Victor Martins,Megda, Michele Xavier Vieira,&Kondo, Marcos Koiti.(2023).Litter decomposition and nutrient release in different land use systems in the Brazilian semi-arid region.CATENA,231.
MLA	Pereira, David Gabriel Campos,et al."Litter decomposition and nutrient release in different land use systems in the Brazilian semi-arid region".CATENA 231(2023).