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QUANTIFICATION OF SOIL ORGANIC CARBON STOCK OF AGRICULTURAL LAND USE IN SOLAN BLOCK OF DISTRICT SOLAN (H.P.)

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Title QUANTIFICATION OF SOIL ORGANIC CARBON STOCK OF AGRICULTURAL LAND USE IN SOLAN BLOCK OF DISTRICT SOLAN (H.P.)
 
Creator SARITA, RANI
 
Contributor BHARDWAJ, SATISH KUMAR
 
Subject genotypes, soybeans, polymorphism, dna, genetics, genetic structures, locus, pcr, electrophoresis, alleles
soil organic carbon stock,agricultural land use,district Solan (H.P)
 
Description ABSTRACT
The present investigation entitled “Quantification of soil organic carbon stock of agricultural land
use in Solan block of district Solan (H.P)” was conducted during 2010-2011 in Solan block of district Solan of
Himachal Pradesh by taking three agricultural land use systems, three altitudinal gradients and two aspects. The
three dominant agricultural land use systems selected for the study area were cereal, vegetable and fruit based
cropping systems. The three agro-ecological situations at altitudinal gradients were E1 (900-1200 m), E2 (1201-
1500 m) and E3 (1501->1800 m). The three dominant agricultural land use systems namely cereal, vegetable and
fruit based cropping system under three agro-ecological situations and two aspects of Solan block of district
Solan were evaluated for their physica-chemical attributes like SOC, bulk density, soil pH, EC, gravel contents
and finally for their SOC stock. The soils of dominant agricultural land use systems under all the agroecological
situations and aspects were found normal in reaction, in EC value and contain 19.00-38.42 % gravels
contents. The SOC status under different agricultural land use systems followed the order as fruit based
cropping system > vegetable based cropping system > cereal based cropping system. Under these systems SOC
ranged between 7.4 to 10.2 g kg-1 in surface and 6.9 to 9.6 g kg-1 in sub-surface layer. The agro-ecological
situations represented by three altitudinal gradients contained SOC content in the range of 8.4 g kg-1 to 9.2 g kg-1
at surface and 7.8 g kg-1 to 8.6 g kg-1 at sub-surface layer. Altitudinal gradient wise SOC content followed the
order as E3 > E2 > E1 at both the layers. The soil under cereal based cropping system registered higher bulk
density (1.21 Mg m3) as compared to vegetable and fruit based cropping system. Among all the agricultural land
use systems, minimum bulk density (1.16 Mg m-3) was recorded under fruit based cropping system. Contrary to
SOC, bulk density showed a decreasing trend with increasing altitudinal gradients. Bulk density increased with
soil depth under all the agricultural land use systems and agro-ecological situations and aspects. Among all the
agricultural land use systems high SOC stock was recorded under cereal based cropping system (38.62 Gg C).
The order of SOC stock distribution was cereal > fruit > vegetable based cropping system. Out of the total SOC
stock the dominant agricultural land use systems of Solan block of district Solan, 44.77 per cent was contributed
by cereal based cropping system. Whereas, fruit and vegetable based cropping system contributed 26.24 and
28.99 percent respectively to the total soil organic carbon pool of the dominant agricultural land use systems of
Solan block of district Solan.
 
Date 2017-01-19T16:00:58Z
2017-01-19T16:00:58Z
2011
 
Type Thesis
 
Identifier 47629
http://krishikosh.egranth.ac.in/handle/1/97172
 
Language en
 
Format application/pdf