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Effects of Land-use on Soil Physical, Chemical and Microbial Properties in Humid Subtropical Northeastern India

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Title Effects of Land-use on Soil Physical, Chemical and Microbial Properties in Humid Subtropical Northeastern India
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Creator S.K. Reza, Utpal Baruah, D.C. Nayak, D. Dutta and S.K. Singh
 
Subject Soil properties, Microbial biomass, Land-uses
 
Description Not Available
A study was conducted to examine the impact of
land-use on soil properties in humid subtropical India. Soil
samples were collected from two depths 0–20 cm (surface
layer) and 20–40 cm (sub-surface layer) of soil from four
land-uses (viz. natural forest, tea plantation, horticultural
system and agriculture) located on varying slopes and
examined for particle size distribution, pH, organic carbon
(OC), exchangeable cations (Ca, Mg, Na and K), microbial
biomass carbon (MBC) and microbial biomass nitrogen
(MBN). There were significant difference in sand, silt and
clay with land-uses in the surface and sub-surface layers
except the clay fraction in the sub-surface layer in all the
land-uses. OC (2.17%) was greatest in forest soil, followed
by soil from horticultural system, tea plantation and agriculture.
The greatest Ca (3.8 cmol/kg) and K (0.7 cmol/kg)
were found in the forest, whereas Mg (1.5 cmol/kg) was
greatest in horticultural system. The MBC and MBN in the
surface layer were highest (237.6 and 80.4 mg/kg,
respectively) in the forest and lowest (135.0 and 46.8 mg/
kg, respectively) in the agriculture, which was subjected to
intense human activities. OC, MBC and MBN declined
with increasing soil depth in all the land-uses.
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Date 2020-05-13T14:49:22Z
2020-05-13T14:49:22Z
2018-05-01
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/35604
 
Language English
 
Relation Not Available;
 
Publisher Springer