S. N. Raj , Yusuf Ansari , C. P. Upadhyaya , S. N. Adhlkari , B. Mahato , S. M. Mishra , S. Rayamajhi

Abstract

The Sagarnath Forestry Development Project is the largest mechanised plantation initiative in Nepal. Of the 11000 ha planted, around 55% is Eucalyptus and 40% Dalbergia sissoo. In all 20 sites (8 planted with D. sissoo and 12 planted with Eucalyptus) were taken up for study of the diameter and height growth. Most of the plantations were-intercuItivated for periods varying from 1 to 5 years. The age of D. sissoo plantations ranged from 3 to 25 years while those of Eucalyptus was from 3 to 13 years. Regression equations for Age/Diameter and Diameter/Height were established for both the species under intercropped and not intercropped conditions. It was observed that intercropping gives initially good start to the plants, however in the long run, the growth is determined by the site potential and the impact of intercropping is nullified. It was seen that upto the age of 3 years the diameter gTowth of both Eucalyptus and D. sissoo was equal while between 3 to 11 years Eucalyptus had better growth than D. sissoo. However thereafter D. sissoo has better diameter growth. Regarding volume (O.B.) production in Eucalyptus the average scenario from the (8-13 years age) data of Eucalyptus gave productivity of 15.86 m³/ha/year while the best scenario (9 years of age) gave a figure of 31.01 m³/ha/year and the worst scenario gave a figure of 6.44 m³/ha/year for 13 years old plantation. In case of D. sissoo the average Volume (O.B.) production at 15 years was 11.17 m³/ha/year and at 25 years it was 15.35 m³/ha/year.

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Shiv Kumar Manjan ¹, Yusuf Ansari ²

Affiliations
1 Forest Research Institute, Dehradun, IN
2 Institute of Forestry, Hetauda Campus, NP

Abstract

Climate change is major concern of the world due to global warming. It plays vital role to increase forest fire incidences and causes huge economic losses and human death. Fire-induces loss of soil cover negatively affects hydrological regimes and soil properties. Therefore the research was conducted on this topic. The field work approaches included forest inventory and contingent valuation. Similarly laboratory test, secondary data and formulae assumed to conclude the result of carbon emission and loss in sequestration and their economic values. The economic loss due to burning of timber, leaf litter, fuel wood of the forest and emission of CO₂ due the burning of leaf litter, timber and fuel wood was estimated as IRs. 96686.04per hector per annum in the community forest. Sequestration losses were not found in the forest because there was no damage caused in standing trees during the surface forest fire. The most devastating crown forest fire was not recorded in the forest. But small shoots of the regeneration and NTFPs was found to be damaged. On return of favorable condition most of the regenerations and NTFPs again come up but very small and intolerable seedlings was seen as completely damaged due to forest fire.

Keywords

Climate Change, Forest Fire, Carbon Emission, Sequestration of CO₂ Economic Valuation.

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