Environmental Science Forest

Environmental Science: forest resources

... area)  Protection forest : 537,997 ha, Special-use forest : 61,122 ha, Production forest : 872,275 5 The forest resources in Vietnam The forest resources in Vietnam The forest resources in Vietnam ... Overview of forest resources Production forests, including forest type used for wood production, forest animals and associated ecological environment protection 1 Overview of forest resources Forests ... Forested Non-forested Forest land 19.1 9.3 9.7 - Special-use forest 1.2 0.9 0.3 - Protection forest 8.0 3.5 4.5 - Production forest 9.9 4.9 5.0 The forest resources in Vietnam  Forest cover...

Environmental Science Forest

... Trường 13 Group 1: Forest Resources Table Forest land in Viet Nam (2004) Forest types Total area (ha) Production forest (ha) Protection forest (ha) Special-use forest (ha) I Forested area 12 306 ... around 1995 (Editor) Description Total Forested Non-forested Forest land 19.1 9.3 9.7 - Special-use forest 1.2 0.9 0.3 - Protection forest 8.0 3.5 4.5 - Production forest 9.9 4.9 5.0 Besides, there ... forests, pine forests, deciduous dipterocarp forest 6.Issues of exploitation and use forests in Vietnam Forest and forest lands Statistics in Vietnam show that 19.2 million hectares are forest land...

Tài liệu Environmental Science (Specialized English for Environmental Courses) ppt

... Huy Ba for reading my book and offering valuable advice; Miss Nguyen Le Kim Cuong and Mrs Nguyen Thi Thu Thuy for using my crude lectures for their teaching, and Miss Nguyen Thi Hong Nhung for her ... the field of environmental science Some of my graduate and undergraduate students using this book have been being engineers, practitioners, and officers I am very grateful to them for their patience ... Capacity to work Energy content: The amount of energy available for doing work For example, amount of energy in fuel available for powering a motor vehicle Food chain: Energy pathway which proceeds...

ISSUES IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY ppt

... from the Sea Raymond J Andersen and David E Williams 55 Introduction Opportunities in the Oceans 55 60 Issues in Environmental Science and Technology No 13 Chemistry in the Marine Environment © The ... and to national and international policymakers concerned with marine pollution and related matters Certainly it is expected to be essential reading for students in many environmental scienceand ... Agency's Marine Environment Laboratory in Monaco and is concerned with contamination and pollution in the marine environment The issues addressed range from industrial and sewage discharges and the...

Lund University International Master’s Programme in Environmental Science (LUMES): Assessment of Efforts to Solve the Water Pollution Problem in Kaunas pdf

... of the water pollution problem in Kaunas city which is in the centre of the object of the analysis The main causes of the pollution - contamination of wastewater, amount of wastewater and pollution ... One of the main conclusions of the assessment of Kaunas efforts to reduce pollution in the Nemunas river is that there is a lack of integration of environmental and social objectives in the water ... Lithuanian Environmental Monitoring Programme The objectives of the monitoring are to observe surface water quality and to evaluate tendencies of change There are four monitoring points in Kaunas...

Introduction to Environmental Science 12:008/159:008 Spring 2002 pptx

... Pollution Introduction to Environmental Science 12:008/159:008 Spring 2002 Surface Water • Photosynthetic organisms (light is essential) – Phytoplankton - microscopic, floaters • green algae, diatoms, ... •Developmental problems due to their ability to mimic Hormones, or disrupt metabolic pathways 16 Water Pollution Introduction to Environmental Science 12:008/159:008 Spring 2002 Water pollution contaminant ... systems 16 Water Pollution Introduction to Environmental Science 12:008/159:008 Spring 2002 Eutrophication in a nutshell Pollutant Direct effect Blocks light to Sediment the bottom Nutrients Chemical...

ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - ACID RAIN ppt

... of the causes and effects of acidic deposition and a comparison of the costs and effectiveness of alternative emission control scenarios Since adverse effects of acid rain on fish have been of ... including landscape changes in the watershed, but usually the conclusion was that acid rain was the major cause of the lake acidification and that the acid rain is primarily the result of long-range ... Within acid- sensitive regions of the United States, percent of the lakes and percent of the streams are chronically acidic Florida has the highest percentage of acidic surface waters (23 percent of...

ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - AEROSOLS pdf

... The first term on the right-hand side represents the rate of formation of particles of volume v due to coagulation, and the second term that rate of loss of particles of volume v by coagulation ... of operation of an impactor Collection efficiency of one stage of an impactor as a function of Stokes number, Stk, Reynolds number, Re, and geometric ratios a particle and air at the outlet of ... Design and Evaluation of a New Low-Pressure Impactor Environmental Science & Technology, 13, 184–188 Kousaka, Y., Okuyama, K., Adachi, M (1985) Determination of Particle Size Distribution of Ultra-Fine...

ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - AIR POLLUTANT EFFECTS pot

... Quality (1995), EPA-402-K-93–007 Health Aspects of Indoor Air, New York Academy of Medicine (1981), 57, No 10 Health Effects of Acid Precipitation, Report of NIEHS Conference in Environmental Health ... (HbO2 ) PO2 (HbCO) and (HbO2) are the concentrations of carboxyhemoglobin and oxyhemoglobin, and PCO and PO2 are the partial pressures of carbon monoxide and oxygen Inspiration of air containing ... control pollutants © 2006 by Taylor & Francis Group, LLC by declaring them to be criteria pollutants and setting airquality standards resulted in the choice of emission controls instead of air- quality...

ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - AIR POLLUTION METEOROLOGY pps

... Concentrations of effluent (schematic) as function of time of day, over city and country 100-T, (%) 50 40 30 20 10 Time of day 15 20 FIGURE Concentrations of air pollution (100-T%), as function of time of ... no pollution sources east of the city, east winds bring clean air The main difference between the effects of lapse rate, mixing depth, and wind speed on the one hand, and wind AIR POLLUTION METEOROLOGY ... explain some of the variations in air pollution caused by meteorological factors First, we shall consider the diurnal variation of air pollution Of course, the actual variation of pollution may...

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