AGROFORESTRY IN THE TRADITIONAL LAND USE PRACTICES: A CASE STUDY OF CHIRGAON IN HIMACHAL PRADESH, A HIGH-HILL WET TEMPERATE AREA

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2020-06
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NAUNI,UHF
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ABSTRACT The present investigation entitled “Agroforestry in the traditional land use practices: A case study of Chirgaon in Himachal Pradesh-a high-hill wet temperate area” was conducted in Chirgaon tehsil located between the longitude 31º11′ to 31º19′ North and latitude 77º48 to 78º56 East. The area was divided into three different elevation zones E1(1800-2100m), E2 (>2100-2400m) and E3 (>2400m). Five agroforestry systems viz., agrisilviculture, hortiagriculture, hortiagrisilviculture, hortisilvipasture and silvipasture were identified to study their floristic composition, biomass, carbon stock and soil properties. Beside it, forty-nine plants with diverse ethnobotanical uses were also identified. The common agriculture crops of the area in kharif season were Amaranthus caudatus, Brassica oleracea, Capsicum annuum, Chenopodium album, Colocasia esculenta, Eleusine coracana, Fagopyrum esculentum, Oryza sativa, Perilla frutescens, Phaseolus vulgaris, Pisum sativum, Solanum melongena and Zea mays and in rabi season Hordeum vulgare, Triticum aestivum and Pisum sativum. Prominent trees in agroforestry systems were Morus serrata, Picea smithiana, Pinus roxburghii, Pinus wallichiana, Pyrus pashia, Quercus floribunda and Quercus leucotrichophora whereas, Malus domestica, Prunus armeniaca, Pyrus communis, Prunus domestica and Prunus persica were major fruit trees in different agroforestry systems. Highest total biomass (aboveground + belowground) was recorded 225.34 t ha-1 in hortiagrisilviculture agroforestry system followed by hortisilvipasture (206.94 t ha-1), agrisilviculture (149.34 t ha-1), silvipasture (140.21 t ha1 ), hortiagriculture, (41.43 t ha-1). Total carbon stock of agroforestry systems followed the precedence hortiagrisilviculture (101.40 t C ha-1) > hortisilvipasture (93.12 t C ha-1) > agrisilviculture (67.20 t C ha-1) > silvipasture (63.10 t C ha-1) > hortiagriculture, (18.64 t C ha-1). Soil organic carbon (%) in different agroforestry systems varied significantly and highest mean organic carbon (1.54%) was recorded for silvipasture followed by hortisilvipasture (1.46%), hortiagrisilviculture (1.41%), hortiagriculture (1.37%) and agrisilviculture (1.32%). Other soil properties viz., pH, EC, BD differed significantly among agroforestry systems and whereas, PD and PS was non-significant. Elevation impacted the biomass and carbon stock of vegetation and, soil properties in agroforestry systems.
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