Economics and energy potential of traditional agroforestry systems under contrasting ecosystems in semi arid tropics
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Economics and energy potential of traditional agroforestry systems under contrasting ecosystems in semi arid tropics Doddabasawa
. B. M. Chittapur . M. Mahadeva Murthy
Received: 28 June 2019 / Accepted: 18 September 2020 Ó Springer Nature B.V. 2020
Abstract In recent past agroforestry systems have been recognized as sustainable land use system over conventional agriculture. However, the major obstacle in up scaling of this tree based land use systems is the difficulty in quantification and demonstration of the ecological and economical sustainability as compared to agriculture. Nevertheless, energy analysis is being widely used at global, national and regional scale to assess the sustainability of system production as it evaluates the system components on common units and also helps to understand the resource use and production efficiency of tree based farming system. Therefore, the present investigation was undertaken to assess the economics and energy use efficiency of different neem (Azadirachta indica A. Juss.) and teak (Tectona grandis L.f.) based agroforestry systems in rainfed and irrigated ecosystems respectively in northeastern dry zone of Karnataka, India. The economic
analysis of neem based agroforestry systems under rainfed condition revealed higher net returns and B:C ratio with crop alone (control) (515 $ ha-1 year-1, 2.00 respectively) over different agroforestry systems. While, in teak based agroforestry systems under irrigated ecosystem higher B:C ratio were recorded (4.07 to 5.71) over control (2.87). However, energy analysis revealed that both neem (3.99 to 4.15) and teak based agroforestry systems (4.48 to 7.74) were energetically superior to control (3.32 and 4.21 respectively). Energy analysis appeared to be the most appropriate method to assess the agroforestry systems rather than economics or life cycle assessment though intangible benefits of tree based land use system are not considered in the former. Therefore, integrated approach involving both ecological and economical assessment is suggested to quantify the sustainability and productivity across types of system and ecological situations.
Doddabasawa (&) College of Agriculture, Bheemarayanagudi, Yadgir District 585287, Karnataka, India e-mail: [email protected]
Keywords Energy use efficiency Economics Boundary planting Biomass Agroforestry
B. M. Chittapur University of Agricultural Sciences, Raichur 584 102, Karnataka, India e-mail: [email protected]
Introduction
M. Mahadeva Murthy Department of Forestry and Environmental Science, UAS, GKVK, Bangaluru 560065, India e-mail: [email protected]
Agroforestry system is a sustainable land use system that is practiced across the world in which perennial component is deliberately integrated and/or retained
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Agroforest Syst
on the farm land to get timber, fodder, fruit, fuel wood and other economic products. That apart, tree based land use provides ecological benefits such as enhanced soil fertility, water quali
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