08-06-2011, 09:54 AM
Comparative Hydrology: An Ecological Approach to Land and Water Resources
Author: Malin Falkenmark, Tom Chapman | Size: 10.50 MB | Format: PDF | Publisher: Unesco | Year: 1989 | pages: 310 | ISBN: 9231025716
With satellites to observe phenomena on the global scale, on the one hand, and intensifying international trade, scientific knowledge, empirical experience and technical assistance, on the other, the world is becoming continuously smaller. This highlights not only similarities but also contrasts between different parts of the world. Comparisons and regional analyses are needed as a basis for improved understanding of vital differences, in order to make international exchange of information and techniques more efficient, and to give more consideration to the diversity of human behavior and aspirations.
At the same time, the ever-increasing scale of environmental degradation brings into focus the close link between the hydrological cycle, which provides water to the earth’s surface, and the terrestrial ecosystems, which are fed by the water entering the plant root zone. Recent studies on ecological optimality (e.g. Eagleson 1982) are deepening our understanding of the water balances of some typical ecosystems. On the other hand, experience has demonstrated that man’s interaction with the vegetation may produce unintended effects not only on the ecosystems as such, but also on the local and even regional regime of water in streams and aquifers.
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:
http://forum.civilea.com/thread-27464.html
***************************************
"Downstream is Weaker"