Journal of Tropical Forestry and Environment: Recent submissions

Now showing items 1-20 of 149

Estimation of Recreational Value of Horton Plains National Park in Sri Lanka: A Decision Making Strategy for Natural Resources Management

Rathnayake, R. M. W.; Gunawardena, U. A. D. P. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2011)

Horton Plains National Park (HPNP) is an area of high biodiversity and exceptional endemism receiving high visitation (166,613 visitors in 2009), both by local and foreigners. Although, tourism causes negative impacts ...
Estimation of Above Ground Tree Biomass and Carbon of Pinus caribaea (Morelet)

Subasinghe, S.M.C.U.P.; Munasinghe, G.B. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2011)

Forests in Sri Lanka contribute to the mitigation of global climate change through sequestrating a net amount of carbon dioxide and also maintaining carbon stocks as forest biomass. This study was conducted using an ...
Solar Radiation Alters Toxicity of Carbofuran: Evidence from Empirical Trials with Duttaphyrnus melanostictus

Wijesinghe, M.R.; Jayatillake, B.A.D.M.C.; Ratnassoriya, W. D. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2011)

In the present study we investigated the potential of natural solar radiation to alter the toxicity of a commonly used carbamate pesticide, carbofuran, on tadpoles of the Common Asian Toad Duttaphrynus melanostictus. A ...
Lead and Cadmium Removal from Aqueous Medium Using Coir Pith as Adsorbent: Batch and Fixed bed Column Studies

Amarasinghe, B.M.W.P.K. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2011)

Coir pith was used as an alternative to commonly available adsorbents for heavy metal ion removal from aqueous solutions. Batch and fixed bed column experiments were conducted to study adsorption characteristics of Cd ...
Cadmium Induced Adverse Effects on Fry of Oreochromis mossambicus

Ranatunge, R. A. A. R.; Wijesinghe, M. R.; Ratnasooriya, W. D. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2011)

This study investigates the effects of Cadmium (Cd) on fry of the Mozambique Tilapia Oreochromis mossambicus using standard toxicity tests. Fry were repeatedly exposed to five concentrations (0.002 – 2.0 mgl-1) of Cd and ...
Toxicity of Neem Leaf Extracts (Azadirachta indica A. Juss) on Some Haematological, Ionoregulatory, Biochemical and Enzymological Parameters of Indian Major Carp, Cirrhinus

Saravanan, M.; Ramesh, M.; Malarvizhi, A. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2011)

In the present study, the median lethal concentration (LC 50) of neem leaf extract to Cirrhinus mrigala for 24 h was found to be 1.035 g l-l. During the study period, the haematological parameters including Hb, Hct, RBC, ...
A Brief Global Perspective on Biomass for Bioenergy and Biofuels

Vlosky, R.; Smithhart, R. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2011)
Community-based Forest Resources Management in Nigeria: Case study of Ngel Nyaki Forest Reserve, Mambilla Plateau, Taraba State, Nigeria

Borokini, T.I.; Babalola, F.D.; Amusa, T.O. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)

In Nigeria, human communities are found within or beside forest ecosystems, depending on these ecosystems for survival. Their forest exploitation is considered a threat to conservation efforts, leading to constant conflicts ...
Spatial Variability of Soil Characteristics along a Landscape Gradient in Bellanwila-Attidiya Area

Cooray, S.; Piyadasa, R.U.K.; Wickramasinghe, D. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)

Wetlands are comprised of unique components of soil, water and biodiversity which are interconnected. Although water and biodiversity components of wetlands have been somewhat investigated, a very few research have been ...
Assessment of Hazardous Volatile Organic Compounds (VOC) in a Residential Area abutting a Large Petrochemical Complex

Mohan, S.; Ethirajan, R. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)

The results of VOC monitoring in a residential area abutting a petrochemical complex and the influence of causative parameters on the concentration is discussed in this paper. The monitored data reveals that about 21 ...
Conservation Value of Forest Plantations: A Study of Four Timber Species in Sri Lanka

Wijesinghe, M. R.; de Silva, V. R. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)

This paper assesses the potential of forest plantations in Sri Lanka consisting of teak, mahogany and two species of eucalyptus, to facilitate the conservation of biodiversity using two taxonomic groups, the plants and ...
Effect of Growth Rate on Wood Specific Gravity of Three Alternative Timber Species in Sri Lanka; Swietenia macrophylla, Khaya senegalensis and Paulownia fortunei

Perera, P.K.P.; Amarasekera, H.S.; Weerawardena, N.D.R. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)

With increasing private sector investments in commercial forestry, it is apparent that plantation forestry in Sri Lanka is moving in the direction of managing fast growing timber species for shorter rotations. However, ...
Ethnobotanicals for Storage Insect Pest Management: Effect of Powdered Leaves of Olaxzeylanica in Suppressing Infestations of Rice Weevil Sitophilusoryzae (L.) (Coleoptera: Curculionidae

Fernando, H. S. D.; Karunaratne, M. M. S. C. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)
Development of a Macroinvertebrate–based Index of Biotic Integrity (MIBI) for Colombo-Sri Jayewardenepura Canal System

Perera, L. G. R. Y.; Wattavidanage, J.; Nilakarawasam, N. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)

Macroinvertebrates have been identified as excellent indicators of stream/ wetland health as they respond rapidly to environmental changes and provide short to medium term pollution history records. Current study was ...
A Tool for Sustainability: A Case for Biogas in Sri Lanka

de Alwis, A. A. P. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)
An Analysis of the U.S. Wood Products Import Sector: Prospects for Tropical Wood Products Exporters

Bandara, W.A.R.T.W.; Vlosky, R.P. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)

The U.S. has dramatically altered its wood product imports and exports during the past few years, and at present, it is the second largest wood product importer in the world. Hence, an understanding of market structures, ...
Agarwood-type Resin from Gyrinops walla Gaertn: A New Discovery

Subasinghe, S.M.C.U.P.; Hettiarachchi, D.S.; Rathnamalala, E. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)

Agarwood is an expensive resinous product extracted from some members of Aquilaria and Gyrinops species of the family Thymalaeaceae. Agarwood essential oil is a highly valued perfumery product in modern cosmetics and ...
Species Composition of Odonate Fauna in Meegahawatta, a Wetland Area in Hanwella, Sri Lanka

Lankika, M.D.H.; Karunaratne, M.M.S.C.; Conniff, K. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)

Approximately 120 species of Odonata (Zygoptera and Anisoptera) have been recorded in Sri Lanka to date. There are many gaps in our knowledge of Odonata taxonomy and distribution. The present study, therefore, was carried ...
Chlorpyrifos-induced Histopathological Alterations in Duttaphrynus melanostictus (Schneider 1799) Tadpoles: Evidence from Empirical Trials

Bandara, M. G. D. K.; Wijesinghe, M. R.; Ratnasooriya, W. D. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)

This paper reports the histopathological responses of the gill, liver and tail muscle tissues in tadpoles of the Asian Common Toad Duttaphrynus melanostictus (Schneider, 1799) exposed to chlorpyrifos a common organophosphorus ...
Aquatic Life Health Quality Assessment of the Bolgoda Canal and Waga Stream with respect to Selected Physico-chemical Parameters and Bioindicators

Idroos, F.S.; Manage, P.M. (Department of Forestry and Environmental Science University of Sri Jayewardenepura, 2012)

The relationship between some physico-chemical parameters and bioindicators in Bolgoda canal and Waga stream in Colombo, Sri Lanka was assessed from February to July 2010. The objective of the study was to evaluate the ...

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