Forests are the dominant form of vegetation in the biosphere, covering roughly one fifth of the Earth’s land area, and they represent a valuable ecological and economic resource (WBGU, 1993). Human use has always changed forest ecosystems, but the middle of this century marked the beginning of a radical increase in the intensity and extent of utilization, primarily in the form of destruction through clearing of woodland for cultivation (Sharma, 1992; WBGU, 1994).
Weitere Kapitel dieses Buchs durch Wischen aufrufen
- Protection of Forests: Protocol or Convention?
German Advisory Council on Global Change(WBGU)
- Springer Berlin Heidelberg