In the present study, the status of energy efficiency and economy of existing agroecosystems in the Shiwalik range of Kumaun Himalaya were assessed. A large number of plant species were cultivated/maintained by the local inhabitants to conserve the diversity in agroecosystems. Agriculture was the main source of economy of the villagers. The agroforestry system provides many ecological services to enhance the socio-economic condition of the farmers. In addition, home garden is another land use system, which is very common in the area. All collected data from agricultural (inputs and outputs) were calculated and converted to energy values by using constants. In the present study, average consumption of annual energy inputs in agroforestry system (103646 MJ/ha) was approximately three times more as compared to home gardens (43056 MJ/ha). Uses of chemical fertilizers and pesticides increased the inputs manifolds. Average annual energy outputs obtained from agroforestry system (434116 MJ/ha) which was seven times more to the home gardens (57008 MJ/ha). Energy output/input ratio in agroforestry varied from 2.26 to 9.06 while in home gardens range speckled between 1.20 and 1.47. In terms of monetary budget, annual return from agroforestry and home garden systems were ₹ 95077/ha and 4201/ha, respectively. From the present study, it can be concluded that agroecosystems provides the good monetary benefits and source of employment to the villagers. The possible benefits of agriculture are raising income and thus improving status of livelihoods in Bhabhar region of Kumaun Himalaya.

The study was conducted in two natural oak forest of Nainital (Uttarakhand) India, during 2012-2013 to determine the weight loss pattern in leaf litter of two Central Himalayan Oaks (i.e., Quercus leucotrichophora A. Camus. and Quercus floribunda Lindl.) with the help of litter bag technique. The present study concluded that weight loss proceeded throughout the study period and relatively higher within 60 days after the placement of litter bags into the soil. Among these two species, higher weight loss observed in Q. floribunda as compared to Q. leucotrichophora across both the sites. Within 365 days, average weight loss observed about 60% in Q. leucotrichophora and 62% in Q. floribunda. Decay rate coefficient rate ranged from 0.0596- 0.0014 for Q. leucotrichophora while it varies from 0.0558 to 0.0013 for Q. floribunda. The monthly relative decomposition rate (RDR) ranged between 0.0598-0.0014 g/g/day and 0.0208-0.0050 g/g/day for Q. leucotrichophora and Q. floribunda, respectively. Climatic factors (rainfall, temperature and relative humidity) also influenced the rate of decomposition.

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