APPRAISAL OF DIFFERENT AGROFORESTRY SYSTEMS FOR BIOMASS PRODUCTION AND CARBON STOCK POTENTIAL IN KARSOG VALLEY OF DISTRICT MANDI IN HIMACHAL PRADESH
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Date
2023-11-23
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UHF Nauni
Abstract
The present study entitled “Appraisal of different agroforestry systems for biomass
production and carbon stock potential in Karsog valley of District Mandi in Himachal Pradesh”
was conducted during 2022-2023 in the Department of Silviculture and Agroforestry, College of
Forestry, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh.
For the present study, Karsog valley was divided into three different elevations i.e. <1000 m, 1000-
1500 m, >1500 m, to identify dominant agroforestry systems, for their biomass production, carbon
stock and soil properties. Agroforestry systems prevalent in the study area were agrisilviculture,
agrihorticulture, agrihortisilviculture, agrisilvipastoral, silvipastoral. The results of the present
investigation revealed that different land use systems have significant influence on biomass
production and carbon stocks. The total higher biomass production was recorded under silvipastoral
system at elevation above 1500 m, while the lowest total biomass production was recorded under
agrihorticulture at elevation below 1000 m. Biomass and carbon stock in vegetation was maximum
under silvipastoral systems at elevation above 1500 m and minimum was found under agrihorticulture
system at elevation below 1000 m. Soil pH was found maximum under agrihortisilviculture system
among two soil depths. EC and SOC was found maximum under silvipastoral system among different
depths. Available Nitrogen was recorded maximum under agrihortisilviculture system (362.32 kg/ha)
at 0-20 cm and (341.48 kg/ha) at 20-40 cm depth of soil. Available Phosphorus was noted maximum
under agrihortisilviculture system (58.27 kg/ha) at 0-20 cm and (57.09 kg/ha) at 20-40 cm depth of
soil. Available Potassium was recorded maThe present study entitled “Appraisal of different agroforestry systems for biomass
production and carbon stock potential in Karsog valley of District Mandi in Himachal Pradesh”
was conducted during 2022-2023 in the Department of Silviculture and Agroforestry, College of
Forestry, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh.
For the present study, Karsog valley was divided into three different elevations i.e. <1000 m, 1000-
1500 m, >1500 m, to identify dominant agroforestry systems, for their biomass production, carbon
stock and soil properties. Agroforestry systems prevalent in the study area were agrisilviculture,
agrihorticulture, agrihortisilviculture, agrisilvipastoral, silvipastoral. The results of the present
investigation revealed that different land use systems have significant influence on biomass
production and carbon stocks. The total higher biomass production was recorded under silvipastoral
system at elevation above 1500 m, while the lowest total biomass production was recorded under
agrihorticulture at elevation below 1000 m. Biomass and carbon stock in vegetation was maximum
under silvipastoral systems at elevation above 1500 m and minimum was found under agrihorticulture
system at elevation below 1000 m. Soil pH was found maximum under agrihortisilviculture system
among two soil depths. EC and SOC was found maximum under silvipastoral system among different
depths. Available Nitrogen was recorded maximum under agrihortisilviculture system (362.32 kg/ha)
at 0-20 cm and (341.48 kg/ha) at 20-40 cm depth of soil. Available Phosphorus was noted maximum
under agrihortisilviculture system (58.27 kg/ha) at 0-20 cm and (57.09 kg/ha) at 20-40 cm depth of
soil. Available Potassium was recorded maximum under agrihortisilviculture system (205.44 kg/ha) at
0-20 cm and (201.67 kg/ha) at 20-40 cm depth of soil. Bulk density was recorded maximum under
agrisilviculture system (1.15 g cm-3) at 0-20 cm and (1.18 g cm-3) at 20-40 cm soil depth. Soil physical
and chemical properties were found suitable for almost all type of agricultural crops. From the study,
it is concluded that agroforestry systems, particularly agrihortisilviculture and silvipasture are playing
an important role in soil enrichment, biomass and carbon storage in Karsog valley of District Mandi in
Himachal Pradesh. Hence these systems need to be promoted further for sustainability and
environmental security.ximum under agrihortisilviculture system (205.44 kg/ha) at
0-20 cm and (201.67 kg/ha) at 20-40 cm depth of soil. Bulk density was recorded maximum under
agrisilviculture system (1.15 g cm-3) at 0-20 cm and (1.18 g cm-3) at 20-40 cm soil depth. Soil physical
and chemical properties were found suitable for almost all type of agricultural crops. From the study,
it is concluded that agroforestry systems, particularly agrihortisilviculture and silvipasture are playing
an important role in soil enrichment, biomass and carbon storage in Karsog valley of District Mandi in
Himachal Pradesh. Hence these systems need to be promoted further for sustainability and
environmental security.