Geochemistry of some ferruginous soils of Kerala, India

Dubey, P. N, B. P. Bhaskar B. P., Chandran, P., Singh, B., and Mishra, B. K.

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Please use this identifier to cite or link to this item: http://krishi.icar.gov.in/jspui/handle/123456789/49958

Title:	Geochemistry of some ferruginous soils of Kerala, India
Other Titles:	Not Available
Authors:	Dubey, P. N, B. P. Bhaskar B. P., Chandran, P., Singh, B., and Mishra, B. K.
ICAR Data Use Licennce:	http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf
Author's Affiliated institute:	National Research Centre on seed Spices, Ajmer-305206 (Rajasthan), INDIA ICAR::National Bureau of Soil Survey and Land Use Planning
Published/ Complete Date:	2016-01-01
Project Code:	Not Available
Keywords:	Chemical index of weathering, Enrichment index, Index of laterization, Kerala, Trace elements
Publisher:	Applied and Natural Science Foundation
Citation:	Not Available
Series/Report no.:	Not Available;
Abstract/Description:	The four representative ferruginous soils on lateritic cover developed over Precambrian rocks in parts of Kottayam of Kerala were studied to understand the weathering pattern and genesis through geochemistry. These soils are strongly to moderately acidic, reddish brown with low Cation exchange capacity CEC and base saturation having SiO2 - 33 to 57%, Al2O3 - 16-31%, Fe2O3 - 8 to 15% and TiO2 -0.7 to 1.4%. Kanjirapalli (P3) and Athirampuzha (P4) soil series were more intensely weathered as compared to the Kinalur (P1) and Chingavanam series (P2) with silica to alumina-iron ratio less than 2 and had a significant negative relationship wi th Chemical index of al teration CIA ( -0.75 * * ), Harnois index ( -0.678 * * ), Richie index ( -0.953 * * ) and Plagioclase Index of Weathering ( -0.705 * * ). The trace elemental concentration ranges were above the values of world soils having an enrichment index more than 1 in Kanji rapalli series (P3) and Ni contamination in genetic horizons (Ni > 200μgg -1). The cluster analysis showed similar major oxide concentration pattern in Group -1 and Group - 2 but varied in trace elemental pattern with Cr > Ba > Cu in Group - 1 and Cu > Cr > Ba in Group - 2 soils whereas Zr > Ni > Mn in Group - 3 to Ni > Mn > Zr in Group - 4 soils. The study further showed that differential rate of weathering in soils under tropical climate was further accelerated due to anthropogenic activities such as improper land use practices and deforestation on sleep slopes.
Description:	Not Available
ISSN:	0974-9411 (Print), 2231-5209 (Online)
Type(s) of content:	Research Paper
Sponsors:	Not Available
Language:	English
Name of Journal:	Journal of Applied and Natural Sciences
NAAS Rating:	4.28
Volume No.:	8(1)
Page Number:	196-207
Name of the Division/Regional Station:	Division of Soil Resource Studies, ICAR-NBSS&LUP, Nagpur
Source, DOI or any other URL:	Not Available
URI:	http://krishi.icar.gov.in/jspui/handle/123456789/49958
Appears in Collections:	NRM-NBSSLUP-Publication

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KRISHI

ICAR RESEARCH DATA REPOSITORY FOR KNOWLEDGE MANAGEMENT (An Institutional Publication and Data Inventory Repository)

ICAR RESEARCH DATA REPOSITORY FOR KNOWLEDGE MANAGEMENT
(An Institutional Publication and Data Inventory Repository)