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111 results for “vegetation”
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Research ArticleOpen accessIn the abstractEffects of Converting Secondary Forest to Oil Palm Plantation on Peat Soil Carbon and Nitrogen and other Soil Chemical PropertiesMakilan Muniandy, Osumanu Haruna Ahmed, Nik Muhamad Ab. Majid, Mohd Khanif YusopProblem statement: Peatlands are natural sequesters of carbon and nitrogen. Once they are disturbed the tendency to lose carbon and nitrogen to the environment is very high. This study investigated the effect of converting peat land forest into oil palm plantation on soil chemical properties with particular emphasis on carbon and nitrogen storage. Approach: Soil samples were collected randomly at … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 7,302 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effect of Air Pollution on Ozone Layer Thickness in Troposphere over the State of KuwaitH. O. Al Jeran, A. R. KhanTroposphere ozone layer acts as a shield against all ultraviolet radiation approaching the planet Earth through absorption. It was noticed in mid 80s that ozone layer has thinned on the poles of the planet due to release of man-made substances commonly known as Ozone Depleting Substances, (ODS) into its atmosphere. The consequences of this change are adverse as the harmful … …American Journal of Environmental Sciences, Vol. 5, Issue 3 · 30 Jun 2009 · 19,488 accessesView PDFCite
Research ArticleOpen accessIn the abstractSoil Quality of Die off and Die Back Mangrove Grown at Al-Jubail Area (Saudi Arabia) of the Arabian GulfAkram Ali, Ahmed Alfarhan, Ernest Robinson, Wafa AltesanThe declining mangrove vegetation along the Arabian Gulf coast necessitates a thorough study for finding out the soil status and for rehabilitating the affected population. In this study, soil supporting die back/die off mangrove plants at Al-Jubail area was studied. Field experiments were also conducted to determine the success/failure ratio of the germinated seeds in both healthy and damaged soils. … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 7,617 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparisons of Phytotoxicity of Barley Parts Extracts in Three Growth Stages on Annual RyegrassKolahi Maryam, Kolahi MinaProblem statement: The importance of allelopathy in nature and in agroecosystem has attracted researcher's attention with the main goal of using the phenomenon in biological control of weeds. currently, active involvement of scientists from different disciplines made allelopathy a multidisciplinary subject, and transformed the research from basic to applied, enabling use of allelopathy in agriculture and forestry. Screening accessions of … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 4 · 31 Dec 2008 · 7,598 accessesView PDFCite
Research ArticleOpen accessIn the abstractWater Quality Assessment of A Constructed Wetland Treating Landfill Leachate and Industrial Park RunoffC. Galbrand, I. G. Lemieux, A. E. Ghaly et al.A surface flow constructed wetland was used for the treatment of landfill leachate and industrial park runoff. The wetland consisted of seven cells and was designed as a kidney shape to facilitate high retention time. The water quality was assessed for iron, manganese, phosphorus (orthophosphate), pH, dissolved oxygen (DO), nitrogen (ammonia, nitrate, nitrite and TKN), chemical oxygen demand (COD), total … …American Journal of Environmental Sciences, Vol. 4, Issue 2 · 30 Apr 2008 · 7,368 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Review on Construction Technologies that Enables Environmental Protection: Rubberized ConcreteG. Senthil Kumaran, Nurdin Mushule, M. LakshmipathyThroughout the world, the disposal of used tires is a major environmental problem causing environmental hazards such as breeding ground for mosquitoes, producing uncontrolled fire and they are contaminating the soil and vegetation. Therefore, there is an urgent need to identify alternative outlets for these tyres, with the emphasis on recycling the waste tyre. Concrete is an excellent structural material … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 1 · 31 Mar 2008 · 7,914 accessesView PDFCite
Research ArticleOpen accessIn the abstractEstablishment and Evaluation of the Vegetative Community in A Surface Flow Constructed Wetland Treating Industrial Park ContaminantsC.C. Galbrand, A.M. Snow, A.E. Ghaly, R. CôtéA surface flow constructed wetland, designed to curve in a kidney shape in order to increase the length to width ratio to 5:1 was used to treat runoff from an industrial park. A natural wetland system located approximately 200 m downstream of the constructed wetland was selected to act as the vegetative community model for the constructed wetland. The selected … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 7,574 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetoxification of Heavy Metal Contaminated SoilsFloarea Damian, Gheorghe DamianThe concentration of the heavy metals in the soils from the strong affected zones because of the mining and metallurgical industry, Baia Mare and Zlatna (Romania), is significant due to the high values of the contents and association of the four metals Pb, Cu, Zn, Cd. The efficacy of the natural zeolites in heavy metals immobilization from the studied soils … …American Journal of Environmental Sciences, Vol. 3, Issue 4 · 31 Dec 2007 · 7,233 accessesView PDFCite
Research ArticleOpen accessIn the abstractWind Speed Simulation Using WaveletsA. H. Siddiqi, S. Khan, S. RehmanMost of the renewable energy sources have direct or indirect link with the sun. Wind is also a form of solar energy. It is initiated by uneven heating of the atmospheric air by the sun, affected from the topography and surface roughness of the earth's surface and rotation of the earth. The earth's terrain, water surfaces and vegetation cover modifies … …American Journal of Applied Sciences, Vol. 2, Issue 2 · 28 Feb 2005 · 7,546 accessesView PDFCite
Research ArticleOpen accessIn the abstractMorphological Variations of Bats, Cynopterus in Mt. Duasudara Nature Reserves, North Sulawesi, IndonesiaHanry Jefry Lengkong, Meis Jacinta NangoyBats belong to family pteropodidae evenly distributed in Indonesia. Genus Cynopterus has intraspecific morphological diversity based on their characteristics, one of which is food-feeding bat of Cynopterus (Chiroptera: Pteropodidae). This study aims identify the morphological variations and the effect of sex of Cynopterus bats in the Nature Reserves of Mt. Duasudara, North Sulawesi. The study site is inhabited by 7 … …OnLine Journal of Biological Sciences, Vol. 25, Issue 3 · 8 Jul 2025 · 3,346 accessesView PDFCite