Archive for August, 2006
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Monday, August 28th, 2006Forestry and Environmental Science
B.Sc. (Special) Part II
Anuradha Vanniarachchi
Rachitha Silva
Sumudhu Priyadarshika
Chamari Heenetigala
HMAB Herath
Community Forestry in Nepal
Monday, August 28th, 2006Rachitha Silva
The people of Nepal are heavily reliant on subsistence agriculture and Forests are an integral part of the agriculture and lives of them. The concept of community forestry is primarily focused on encouraging and contributing to support rural livelihoods in terms of fuel timber for housing, fuel wood, and fodder for stock and leaf [...]
Selection and Field Establishment of Tree Crops for Large Scale Plantations in Wet, Dry and Intermediate Zones of Sri Lanka
Monday, August 28th, 2006Rachitha Silva
Large-scale forest tree planting in Sri Lanka started in late 1950’s and till December 1998 has covered about 140,000 ha of forest plantations belonging to the Forest Department. The main plantation species are Teak, Eucalypts (Eucalyptus grandis), and Mahogany etc. Most of the fuel wood, miscellaneous hardwood and teak plantations are located in the [...]
Planting of Trees in Saline Soils
Monday, August 28th, 2006H.M.A.B. Herath
Soil salinity is the oldest soil pollution problem. The collapse the Babylonian empire is considered to be partly the result, of failure of irrigated crops due to the accumulation of salt. The problem is primarily associated with arid and semi-arid regions of the world, where there is an insufficient rain to leach out the [...]
Environmental Pollution and its Mitigation Measures of the Shrimp Farming Industry
Monday, August 28th, 2006Rachitha silva
The current shrimp aquaculture industry in Sri Lanka is concentrated in the North Western coastal belt covering a farm area of more than 4,500 ha with 1,344 farm establishments. The major components of the shrimp industry include shrimp post larvae production (hatcheries), shrimp farming, Shrimp processing and Shrimp feed manufacturing. Many Environmental Impacts are [...]
Economic Evaluation of Energy Externalities
Monday, August 28th, 2006H.M.A.B. Herath
Externalities arise due to failures in market, policy or institutions. Externalities exist when economic transactions between two or more parties result in an impact on a third party, who is not involved in the transaction.
Economic evaluation of energy systems strongly depends on four factors; Capital cost, Maintenance cost, Fuel cost, External cost. Fuel and [...]
Plan for the development of Wooden Items sector in Sri Lanka
Monday, August 28th, 2006Rachitha silva
The production of various wooden items targets the local as well as global export market. These products include wooden toys, sport goods and educational items for children, Household items, Figurines, Sculpture and Masks, Parquet floorings and ceilings. Especially the Wooden toy industry in Sri Lanka is an established industry with over 50 exporters and [...]
Economic Evaluation of Agrochemical Externalities
Monday, August 28th, 2006Rachitha Silva
Assessing the true costs and benefits of pesticide use is much more complicated than for technologies such as fertilizer application or new crop varieties. Most of impacts may take many years to emerge and even longer to be quantified. This future cost to sustainability of production systems through current pesticide use is not included [...]