Papel de los Ecosistemas en la Sustentabilidad
ABSTRACT Resumen. Se describen de forma somera, las diferentes clases de ecosistemas. Se mencionan la relevancia de los mismos en relación con los servicios ambientales que ofrecen, a parte de su importancia esencial para el mantenimiento de la vida en el planeta. Se notan los rasgos críticos de los tres elementos vitales de la Tierra, es decir, el agua, el suelo y la atmósfera. Se discuten la contaminación ambiental con especial énfasis sobre los residuos, el agua, el suelo, la atmósfera y el ozono. Abstract. Different types of ecosystems are briefly described. The importances of these ecological systems with respect to environmental services apart from their central role as life supporting system of the plant are mentioned. Essential traits of three crucial elements of the planet, namely, water, air and soil are noted. Environmental pollution with particular emphasis on residues, water, soil, atmosphere and the ozone layer is discussed.
Article: The Changing Atmosphere[Show abstract] [Hide abstract]
ABSTRACT: The chemistry of the atmosphere is changing, in large measure because of gases emitted by such human activities as farming, manufacturing, and the combustion of fossil fuels. The deleterious effects are increasingly evident; they may well become worse in the years ahead. This paper discusses the pollutants and the environmental perturbations with which they are associated. The authors believe the solution to the earth's environmental problems lies in a truly global effort.Scientific American 08/1989; 261:3(3). DOI:10.1038/scientificamerican0989-58 · 1.33 Impact Factor
Article: Will Expectedly the Top Blow off?BioScience 01/1995; 45. DOI:10.2307/1312436 · 5.44 Impact Factor
Article: Our changing climate[Show abstract] [Hide abstract]
ABSTRACT: A series of temperature, precipitation and air pressure observations for the period 1860–1987 from regions situated in northern and southern Sweden were analysed. The temperature increased until around 1940, as in other parts of the world. During the 1930s, the general circulation changed its pattern from high frequencies of zonal circulation to more meridional types. This caused a decreasing temperature trend from 1940 onwards. During the period 1940–1988, areas of net cooling and warming in the Northern Hemisphere were of about equal size and magnitude. Although the greenhouse gases have increased by > 15%, the temperature is still at the same level as in around 1940. The precipitation series from north and south Sweden showed no remarkable trends. The somewhat lower values during the 19th century may partly have been caused by less reliable measurements.Agricultural and Forest Meteorology 01/1984; 50(1-2-50):55-64. DOI:10.1016/0168-1923(90)90138-V · 3.89 Impact Factor