Identification and characterization of cohesive soils in the state of Ceara, Brazil

被引：26

作者：

Lima, HV

Silva, AP

Jacomine, PTK

Romero, RE

Libardi, PL

机构：

[1] USP, ESALQ, Dept Solos & Nutr Plantas, Bolsista CNPq, BR-13400970 Piracicaba, SP, Brazil

[2] Univ Fed Rural Pernambuco, Dept Agron, UFRPE, BR-52171900 Recife, PE, Brazil

[3] Univ Fed Ceara, Dept Solos & Nutr Plantas, CCA, Dept Ciencias Solo, BR-60021970 Fortaleza, Ceara, Brazil

[4] USP, ESALQ, Dept Ciencias Exatas, BR-13400970 Piracicaba, SP, Brazil

来源：

REVISTA BRASILEIRA DE CIENCIA DO SOLO | 2004年 / 28卷 / 03期

关键词：

cohesive horizons; morphological parameters; coastal plains in the state of Ceara;

D O I：

10.1590/S0100-06832004000300008

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Given the importance of cohesive soils derived from sediments of the Barreiras Formation, and the extensive area occupied by them in northeastern Brazil, the objective of this study was to identify and characterize the occurrence of cohesive soils in Coastal Plains of Ceara State. Three soil profiles were studied: two cohesive Argisols and one non-cohesive Argisol. Their morphological characteristics and physical, chemical, and mineralogical properties were assessed to confirm the presence of cohesive horizons. The results validated the hypothesis of occurrence of cohesive soils in Ceara State and the similarities of these with cohesive soils studied in other Brazilian states. The PR was the most sensitive indicator of soil cohesiveness.

引用

页码：467 / 476

页数：10

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