Master Quote: Bill Mollison – 03/16/18
Bill Mollison - Source: permacultureprinciples.com
Excerpt from Bill Mollison's Permaculture: A Designers Manual
"Trees have helped to create both our soils and atmosphere. The first by mechanical (root pressure) and chemical (humic acid) breakdown of rock, adding life processes as humus and myriad decomposers. The second by gaseous exchange, establishing and maintaining an oxygenated atmosphere and an active water-vapor cycle essential to life. The composition of the atmosphere is the result of reactive processes, and forests may be doing about 80% of the work, with the rest due to oceanic or aquatic exchange. Many cities, and most deforested areas such as Greece, no longer produce the oxygen they use."
Permaculture: A Designers Manual - 1989
Page 142
Posted from my blog with SteemPress : http://www.agsurrection.com/2018/03/16/master-quote-bill-mollison-03-16-18/
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