Magnetic Susceptibility of Soil to Differentiate Soil Environments in Southern Brazil

被引:22
|
作者
Ramos, Priscila Vogelei [1 ]
Diniz Dalmolin, Ricardo Simao [2 ]
Marques Junior, Jose [3 ]
Siqueira, Diego Silva [4 ]
de Almeida, Jaime Antonio [5 ]
Moura-Bueno, Jean Michel [6 ]
机构
[1] Univ Fed Rio Grande do Sul, Dept Solos, Programa Posgrad Ciencia Solo, Porto Alegre, RS, Brazil
[2] Univ Fed Santa Maria, Dept Solos, Santa Maria, RS, Brazil
[3] Univ Estadual Paulista, Fac Ciencias Agr & Vet, Dept Solos & Adubos, Jaboticabal, SP, Brazil
[4] Univ Estadual Paulista, Fac Ciencias Agr & Vet, Dept Solos & Adubos, Programa Posgrad Agron Ciencia Solo, Jaboticabal, SP, Brazil
[5] Univ Estado Santa Catarina, Ctr Ciencias Agrovet, Dept Solos, Lages, SC, Brazil
[6] Univ Fed Santa Maria, Programa Posgrad Ciencia Solo, Dept Solos, Santa Maria, RS, Brazil
来源
REVISTA BRASILEIRA DE CIENCIA DO SOLO | 2017年 / 41卷
关键词
pedometrics; geomorphology; detailed mapping; IRON-OXIDES; SPATIAL VARIABILITY; LANDSCAPE MODELS; MINERALOGY; OXISOL; CLIMOSEQUENCE; PEDOGENESIS; SANDSTONE; PROFILES; AREAS;
D O I
10.1590/18069657rbcs20160189
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
The interest in new techniques to support digital soil mapping (DSM) is increasing. Numerous studies pointed out that the measure of magnetic susceptibility (MS) can be extremely useful in the identification of properties related with factors and processes of soil formation, applied to soil mapping. This study addressed the effectiveness of magnetic soil susceptibility to identify and facilitate the distinction of different pedogenic environments of a representative hillslope in the highland Planalto Medio in the state of Rio Grande do Sul (RS), Brazil. In a 350-ha area in the municipality of Santo Augusto, RS, a representative transect was selected, trenches opened for soil characterization and 29 grid points marked at regular distances of 50 m, where soil samples were collected (layers 0.00-0.05, 0.05-0.15, 0.15-0.30, and 0.30-0.60 m) to analyze soil properties. Data from the transect samples were subjected to descriptive statistics. Limits of the pedogenetic environments along the slope were identified by the Split Moving Window (SMW) Boundary Analysis. The combined use of soil magnetic susceptibility and the SMW technique was effective in identifying different pedogenetic environments in the study area.
引用
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页数:13
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