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Characterization of Soils and Assessment of Land Degradation in West Coast of Southern Karnataka

KrishiKosh

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Title Characterization of Soils and Assessment of Land Degradation in West Coast of Southern Karnataka
 
Creator SIDHARAM, PATIL
 
Contributor Anil Kumar, K S
 
Subject land resources, clay, acidity, soil degradation, humus, cultivation, area, sampling, precipitation, environmental degradation
 
Description The research programme was undertaken to characterize the land
resources and to assess degradation of west coast of Southern Karnataka
using toposheets, imagery and field studies.
Soil profiles were studied from all seven major physiographic divisions
in two long transects. Methodology and flow chart for land resources
appraisal for degradation studies have been devised. The soils have been
described for their site characteristics, morphology, physical, chemical
characteristics and fertility.
The study could find out that deep, strongly to moderately acid red
and lateritic soils of Ultisol order with low CEC and BS occupy considerable
area with rich organic carbon status in foot hill zone.
The major taxa of soils identified at great group level of Soil Taxonomy
are Palehumults, Kandihumults, Kanhaplohumults, Kandiustults,
Kanhaplustults and Haplustults.
The study could bring out the native fertility and available nutrient
status of soils of west coast and its ability to supply essential plant nutrients
to crops.
Liming and soil test based nutrient application is essential as all the
soils studied are strongly or moderately acid and poor in all major,
secondary and micronutrients except Fe, Mn and Cu.
Using the land qualities studied and datasets of SRM of Karnataka,
the study could bring out land degradation status map of southern coastal
Karnataka with Kollur with very low, Brahmavar low, Belthangadi medium,
Sullya and Ullal moderate and Molahalli and Murdeshwar with high
degradation status and vulnerability using a numerical scale of 0 to 1
devised in the present study by grading each land quality
 
Date 2016-11-11T10:01:55Z
2016-11-11T10:01:55Z
2013-08-23
 
Type Thesis
 
Identifier TH-10516
http://krishikosh.egranth.ac.in/handle/1/85032
 
Language en
 
Format application/pdf
 
Publisher University of Agricultural Sciences GKVK, Bangalore