干旱区生态环境知识资源中心(Arid): Genesis of lamellae in sandy soils: A case study in a semi-arid region in NE-Brazil

Arid

DOI	10.1016/j.geoderma.2021.115447
	Genesis of lamellae in sandy soils: A case study in a semi-arid region in NE-Brazil
	Tenorio Firmino, Francis Henrique; Camelo, Danilo de Lima; do Nascimento, Alexandre Ferreira; de Souza Lima, Jose Romualdo; Souza Junior, Valdomiro; de Almeida, Brivaldo Gomes; Correa, Marcelo Metri
通讯作者	Correa, MM (corresponding author), Fed Univ Agreste Pernambuco, BR-55292270 Garanhuns, PE, Brazil.
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2022
卷号	406
英文摘要	The occurrence of lamellae in soils and sediments has direct implications for agricultural production, and for stratigraphic and geomorphological studies. Although lamellae have been studied for more than a century, their origin remains controversial. The aim of this study was to identify the origin and formation mechanisms of lamellae in autochthonous soils developed from metamorphic rocks in a semi-arid area of Northeast Brazil. As such, the spatial organization of soil profiles was evaluated in a topolithosequence, through structural analysis of the pedological coverage for subsequent soil sampling. Morphological, chemical, physical, sedimentological, mineralogical, and micromorphological analyses were carried out on the studied slope and in greater detail in four soil profiles. The results indicated that clay particles predominantly smaller than 0.2 mu m are eluviated in a sandy soil matrix, infilling voids and coating quartz grains, which are organized in layers of densely packed fine sand, impeding clay translocation and helping form lamellae. Although the micromorphological properties of the lamellae demonstrate their pedogenic origin, the contribution of strips of polycrystalline quartz constitutes a petrogenic component of the illuviation process. Therefore, the genesis of the lamellae is better described based on a petro-pedogenic origin. We suggest a restructuring of the concept of petro-pedogenic origins, including the structural influence of metamorphic rocks, as illuviated clay deposition occurs in accordance with a physical barrier provoked by the increase and organization of fine sand particles, distributed horizontally and in parallel, arising from the disintegration of polycrystalline quartz grains, which indicates geological control in the genesis of lamellae, corresponding to petrogenic evidence. Furthermore, the morphological distinction of the lamellae seems to be more associated with the fine sand content (<0.25 mm), and its packing with larger grains of quartz in the soils.
英文关键词	Bands of day Argilluviation Fine sand Polycrystalline quartz Pedogenesis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000703716800002
WOS关键词	CLAY ; BANDS ; PERNAMBUCO ; MICHIGAN ; ORIGIN ; TRANSLOCATION ; INFILTRATION ; MISSISSIPPI ; TRANSPORT ; REGOSOLS
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/2XILL650/363399
作者单位	[Tenorio Firmino, Francis Henrique; Souza Junior, Valdomiro; de Almeida, Brivaldo Gomes] Univ Fed Rural Pernambuco, Dept Agron, BR-52171900 Recife, PE, Brazil; [Camelo, Danilo de Lima] Univ Fed Espirito Santo, Dept Agron, BR-29500000 Alegre, Espirito Santo, Brazil; [do Nascimento, Alexandre Ferreira] Brazilian Agr Res Corp, Embrapa Agrossilvipastoril, BR-78550970 Sinop, Mato Grosso Sta, Brazil; [de Souza Lima, Jose Romualdo; Correa, Marcelo Metri] Fed Univ Agreste Pernambuco, BR-55292270 Garanhuns, PE, Brazil
推荐引用方式 GB/T 7714	Tenorio Firmino, Francis Henrique,Camelo, Danilo de Lima,do Nascimento, Alexandre Ferreira,et al. Genesis of lamellae in sandy soils: A case study in a semi-arid region in NE-Brazil[J],2022,406.
APA	Tenorio Firmino, Francis Henrique.,Camelo, Danilo de Lima.,do Nascimento, Alexandre Ferreira.,de Souza Lima, Jose Romualdo.,Souza Junior, Valdomiro.,...&Correa, Marcelo Metri.(2022).Genesis of lamellae in sandy soils: A case study in a semi-arid region in NE-Brazil.GEODERMA,406.
MLA	Tenorio Firmino, Francis Henrique,et al."Genesis of lamellae in sandy soils: A case study in a semi-arid region in NE-Brazil".GEODERMA 406(2022).