干旱区生态环境知识资源中心(Arid): Lateral loss of clay in the genesis of Luvisols in the Semi-Arid Depression of the Jequitinhonha Valley, Minas Gerais

Arid

DOI	10.1590/1413-7054201943018219
	Lateral loss of clay in the genesis of Luvisols in the Semi-Arid Depression of the Jequitinhonha Valley, Minas Gerais - Brazil
	Marcolino Goncalves, Mariana Gabriele; Ker, Joao Carlos; de Oliveira, Fabio Soares; Silva Ramos, Leticia Onara; Pacheco, Anderson Almeida; Curi, Nilton
通讯作者	Curi, N (corresponding author), Univ Fed Lavras UFLA, DCS, Lavras, MG, Brazil.
来源期刊	CIENCIA E AGROTECNOLOGIA
ISSN	1413-7054
EISSN	1981-1829
出版年	2019
卷号	43
英文摘要	Soils of the semi-arid region of Minas Gerais have small depth; hard, very hard or even extremely hard consistency when dry and very plastic and very sticky when moist; columnar or angular blocky structure and significant cracking along the profile in the dry period, however they have not been deeply studied yet. Thus, the aim of this study was to detail the genesis of Luvisols in the Semi-arid Depression of the Jequitinhonha Valley (MG), incompassing morphological, physical, chemical, micromorphological and mineralogical attributes, and their relationships. The lack of illuviation coatings in the micromorphological analysis is in line with the expressionless and unclear clay skins observed in the top of the B horizon in only one out of the four soil profiles during the field work. Considering the occurrence of expandable 2:1 clay minerals, which can easily modify such pedological feature, caution is recommended in relation to soil genesis interpretation. The lateral loss of the day fraction from the superficial horizons is highlighted as the main formation process of the Luvisols studied. The cation exchange capacity of these soils revealed remarkable lower values for the Luvisols in semi-arid Brazilian regions.
英文关键词	Soil mineralogy cation exchange capacity soil micromorphology
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000502313300001
WOS关键词	MINERALOGICAL CHARACTERISTICS ; METAMORPHIC ROCKS ; SOILS ; PEDOGENESIS ; HYDROLYSIS ; MAGNESIUM ; ALFISOLS
WOS类目	Agriculture, Multidisciplinary ; Agronomy
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/2XILL650/369900
作者单位	[Marcolino Goncalves, Mariana Gabriele; Curi, Nilton] Univ Fed Lavras UFLA, DCS, Lavras, MG, Brazil; [Ker, Joao Carlos; Silva Ramos, Leticia Onara; Pacheco, Anderson Almeida] Univ Fed Vicosa, Dept Solos, Vicosa, MG, Brazil; [de Oliveira, Fabio Soares] Univ Fed Minas Gerais, Belo Horizonte, MG, Brazil
推荐引用方式 GB/T 7714	Marcolino Goncalves, Mariana Gabriele,Ker, Joao Carlos,de Oliveira, Fabio Soares,et al. Lateral loss of clay in the genesis of Luvisols in the Semi-Arid Depression of the Jequitinhonha Valley, Minas Gerais - Brazil[J],2019,43.
APA	Marcolino Goncalves, Mariana Gabriele,Ker, Joao Carlos,de Oliveira, Fabio Soares,Silva Ramos, Leticia Onara,Pacheco, Anderson Almeida,&Curi, Nilton.(2019).Lateral loss of clay in the genesis of Luvisols in the Semi-Arid Depression of the Jequitinhonha Valley, Minas Gerais - Brazil.CIENCIA E AGROTECNOLOGIA,43.
MLA	Marcolino Goncalves, Mariana Gabriele,et al."Lateral loss of clay in the genesis of Luvisols in the Semi-Arid Depression of the Jequitinhonha Valley, Minas Gerais - Brazil".CIENCIA E AGROTECNOLOGIA 43(2019).