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

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dc.contributor.advisorBHARDWAJ, SATISH KUMAR
dc.contributor.authorSARITA, RANI
dc.date.accessioned2017-01-19T16:00:58Z
dc.date.available2017-01-19T16:00:58Z
dc.date.issued2011
dc.description.abstractABSTRACT 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.en_US
dc.identifier.other47629
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/97172
dc.language.isoenen_US
dc.subEnvironmental Scienceen_US
dc.these.typeM.Sc
dc.titleQUANTIFICATION OF SOIL ORGANIC CARBON STOCK OF AGRICULTURAL LAND USE IN SOLAN BLOCK OF DISTRICT SOLAN (H.P.)en_US
dc.typeThesisen_US
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