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DOI	10.1590/1413-7054202145014721
	Physical, chemical, and mineralogical attributes and organic fractions of biogenic aggregates of earthworms and toposequence of Inceptisol in semi-arid region
	da Silva Santos, Eula Paula; Freitas Lima, Flavia Giglianne; da Silva, Eulene Francisco; de Freitas, Diana Ferreira; Ferreira, Eveline de Almeida; Vasconcelos, Aline de Almeida
通讯作者	da Silva, EF (corresponding author), Univ Fed Rural Semiarido UFERSA, Dept Ciencias Agron & Florestais, Mossoro, RN, Brazil.
来源期刊	CIENCIA E AGROTECNOLOGIA
ISSN	1413-7054
EISSN	1981-1829
出版年	2021
卷号	45
英文摘要	Earthworms are known to improve soil fertility by altering the physicochemical properties of soil. However, the changes in properties of biogenic aggregates (produced by earthworms) in regions with different vegetation covers and soils of Inceptisol toposequence in the semi-arid region have not been studied. The objective of this work was to determine the variations of the physical, chemical, and mineralogical attributes and organic fractions of biogenic aggregates of earthworms under different vegetation covers and compare them to an Inceptisol toposequence in the semi-arid region of Pernambuco State, Brazil. For this study, four Inceptisol soil profiles were selected. The sampled points were P1-upper; P2-middle third; P3-middle third; and P4-lower slope, and the soils were collected at a depth of 0-0.20 m. The biogenic aggregates were found in the P3 samples collected from three areas with different vegetation covers: an area with mesquite tree vegetation (Prosopis juliflora [Sw] D.C.); an area with neem tree vegetation (Azadirachta indica A. Juss); and an area with forage palm and mesquite tree vegetation (Opuntia sp. and Nopalea sp.). Results indicate that the biogenic aggregates were in the form of irregular blocks with a size greater than 40 mm. As compared to Inceptisol samples, these aggregates tended to select particles of smaller diameter and exhibited higher concentrations of clay minerals. The chemical and organic fraction analysis revealed that the aggregates exhibited higher Ca2+, total organic carbon (TOC), labile and humic substances, regardless of the vegetation cover. The mineralogical analysis revealed that the action of earthworms did not change the quantity or type of clay minerals.
英文关键词	Coprolites labile carbon soil fertility secondary minerals humic substance
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000728525700001
WOS关键词	PARTICLE-SIZE ; SOIL ; MATTER ; CARBON ; COMMUNITIES ; BIOINDICATORS ; CULTIVATION ; OXISOL ; CASTS ; STATE
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/2XILL650/373566
作者单位	[da Silva Santos, Eula Paula] Univ Fed Paraiba UFPB, Ctr Ciencias Agr, Areia, PB, Brazil; [Freitas Lima, Flavia Giglianne; Ferreira, Eveline de Almeida] Univ Fed Rural Semiarido UFERSA, Dept Biociencias, Mossoro, RN, Brazil; [da Silva, Eulene Francisco] Univ Fed Rural Semiarido UFERSA, Dept Ciencias Agron & Florestais, Mossoro, RN, Brazil; [de Freitas, Diana Ferreira] Univ Fed Ceara UPC, Dept Ciencia Solo, Fortaleza, Ceara, Brazil; [Vasconcelos, Aline de Almeida] Univ Fed Sao Joao del Rei UFSJ, Dept Ciencias Agr, Sete Lagoas, MG, Brazil
推荐引用方式 GB/T 7714	da Silva Santos, Eula Paula,Freitas Lima, Flavia Giglianne,da Silva, Eulene Francisco,et al. Physical, chemical, and mineralogical attributes and organic fractions of biogenic aggregates of earthworms and toposequence of Inceptisol in semi-arid region[J],2021,45.
APA	da Silva Santos, Eula Paula,Freitas Lima, Flavia Giglianne,da Silva, Eulene Francisco,de Freitas, Diana Ferreira,Ferreira, Eveline de Almeida,&Vasconcelos, Aline de Almeida.(2021).Physical, chemical, and mineralogical attributes and organic fractions of biogenic aggregates of earthworms and toposequence of Inceptisol in semi-arid region.CIENCIA E AGROTECNOLOGIA,45.
MLA	da Silva Santos, Eula Paula,et al."Physical, chemical, and mineralogical attributes and organic fractions of biogenic aggregates of earthworms and toposequence of Inceptisol in semi-arid region".CIENCIA E AGROTECNOLOGIA 45(2021).