12/15/2023 0 Comments Fire overlay![]() ![]() Studies suggest that 90% of vegetation fires in India may be man-made, and annually about 3.73 million ha of forest areas are affected by forest fires (Srivastava and Garg 2013). Forest fires are widespread phenomena in Indian forests. But most of these studies were conducted in the temperate regions. Several studies have been conducted across the globe in the last few decades to understand the effect of fires on vegetation, soil properties, and biomass (Verma and Jayakumar 2012, Whelan 1995). Fires firmly promote few fire-tolerant species that can replace the naturally growing species in an undisturbed environment. The ecological significance of these recurrent fires on forest establishment is important. In tropical dry deciduous forests, where fires are very frequent, plants display some adaptive traits like thick bark, the capability of healing fire scars, seed adaptations, and re-sprouting capability (Khan and Tripathi 1986, 1989). Forest regeneration has been affected by fire through killing stem tissues of seedlings and saplings and heating the soil sufficiently to kill roots and seeds near the soil surface (Balch et al. Forest fires affect vegetation by suppressing certain species and encouraging other species causing changes in vegetation structure and successional pattern (Syaufina and Nuruddin 2011). 2003) by influencing different aspects of growth and development, like flowering, seed dispersal, germination, seedling establishment, and plant mortality (De Luis et al. Forest fires strongly affect the species composition of plant communities (Danthu et al. The overall fire affected diversity, but regeneration showed a positive trend.įire is a significant ecological event that can produce variable effects (Keane et al. Seedling density increased linearly in subsequent years after fire but sapling and tree density recorded less than control in B2 but was higher in B5 and B15. Stems of small size classes started increasing after the fire. ![]() Tree diversity decreased in 2-year-old and 5-year-old burnt plots and was reached to the level of unburnt plots in 15 years of interval. Totally, 40 tree species were recorded in study plots, from which 28 species were seedlings, 16 species were saplings, and 37 species were at tree stages. ResultsĪ total of 4129 individuals of tree species were recorded in field surveys, comprising 3474 seedlings, 121 saplings, and 534 trees. ![]() Three 0.1 ha square plots were laid randomly in all four patches and analyzed for tree diversity, stand structure, and regeneration of tree species. Four forest patches were selected which were unburned, 2-year-old burn, 5-year-old burn, and 15-year-old burn. 151-156.The study was conducted in Mudumalai Tiger Reserve, in the Western Ghats to understand the effect of a single fire event on tree diversity and regeneration status. Department of Agriculture, Forest Service, Intermountain Research Station. Proceedings-management and productivity of western-montane forest soils 1990 April 10-12 Boise, ID. Proceedings - Management and productivity of western-montane forest soilsĭeBano, Leonard F.Nitrogen replenishment must be emphasized when prescribed burning programs are planned or during rehabilitation following wildfires. Soil OM loss also affects cation exchange capacity, organic chelation, aggregate stability, macro pore space, infiltration, and soil microorganisms. Combustion of litter and soil organic matter (OM) increases the availability of some nutrients, although others are volatilized (for example, N, P, S). Fire affects nutrient cycling and the physical, chemical, and biological properties of soils occupied by western montane forests. ![]()
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