16 research outputs found
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Not AvailableIn this communication an effort has been made to develop a general non-site specific allometric relationship taking Tectona grandis grown in semi-arid Bundelkhand region without harvesting any tree. To determine the most appropriate predictor variable for
producing the relationship, different physiological parameters of this tree species like diameter at breast height (dbh), basal diameter, tree height, forking height, collar diameter, etc. were collected from the standing trees from MP part of Bundelkhand region, comprising a total of 45 sites of 4 districts namely Guna, Vidisha, Chhatarpur and Tikamgarh. The dataset contained 418 trees with biomass ranging from
12.79 kg/tree to 12707.92 kg/tree, height ranging from 1.5 to 18.5 m and dbh ranging from 0.03 to 0.44 m. For developing the models; dbh, height, dbh × height and dbh2 × height were used as predictor variables. All four contrasting sites were taken for developing allometric models and after examining model residuals and site-specific elationships, it was found that using dbh2 × height alone as the predictor variable roduced the most stable model. Thus it makes regional estimation of above ground biomass production easier with precision as accurate as site-specific allometry.ICAR- IGFRI, Jhans
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Not AvailablePrecise estimate on grasslands area, extent and conditions, forage and production can be generated with
the help of remotely sensed satellite data, Geographical lnformation System (GlS) and Global position System
(GPS). ln the present study of Kangra valley of Himachal Pradesh, lndia was found that about 12.3g% area was under grasslands. The spatial distribution was presented in map using ArcGlS. The forage production (2.i2 DM V ha) and grazing pressure (7.86 ACU/ha) was estimated for livestock based developmental plan.Not Availabl
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Not AvailableGeomatics based study of yak rearing tracks of north-eastern Himalayan grasslands.Not Availabl
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Not AvailableThe present study was conducted in a community pastureland of Spituk Monastery, Leh (Ladakh) from 2013 to 2015 to evaluate some temperate forage grasses/legumes and their mixtures grown in the interspaces of Salix
plantation with a spacing of 4 m x 4 m. The experiment comprised of 13 treatments laid out in a randomized block design with each treatment replicated three times using a plot size of 12 m x 12 m. The results revealed
that alfalfa had maximum value of sward height (62.5 cm), which was at par with treatment alfalfa grown in mixture with Dactylis + tall fescue + sainfoin. However, plant cover was maximum (75.6-85.6%) in mixture
treatments as compared to sole grass or legume treatments (20.4-80.6%). Maximum green (9.87 t ha-1) and dry fodder yield (2.68 t ha-1) was observed in Dactylis + tall fescue + sainfoin + alfalfa treatment, which was at par with tall fescue + alfalfa treatment. The mean values for plant height, collar diameter, diameter at breast height, number of branches and leaf yield were 1.79 m, 21.2 mm, 16.1 mm, 5.32 and 66.72 dry matter kg ha-1, respectively. The study suggests that tall fescue, Dactylis, red clover and sainfoin hold great promise as intercrop in Salix-based silvipastoral systems for augmenting the fodder needs in the region.Not Availabl