To keep up with global food demand, the UN estimates, six million ha of new farmland will be needed every year. Instead, 12 million ha are lost every year through soil degradation. Australia lost 36 million ha of agricultural land in just the four years from 2005 till 2009.
In the light of the upcoming "Pause and Review" conference (November 9, 2014) on how Victoria's 5% per annum burning off will destroy most wildlife, along with forests and climate, I am revisiting the biotic pump theory on these pages. Whilst many people have been aware (but have mostly been ignored) that vegetation, especially forests, creates rain, and whilst desertification has been linked to deforestation historically many times, there is a new and robust theory to explain how this may happen. There is a short and a long version at Prof. Victor G. Gorshkov and Anastassia Makarieva's theoretical physics site here: "Biotic regulation pump." The authors also have pages at academia.edu. A journalist overview, "'Biotic Pump' Theory Suggests Forests Drive Wind and Rain" is available on the Environmental News Network.
See also How logging causes forest firesOriginal source of article:Rainforests may pump winds worldwide by Fred Pierce, New Scientist, 1st April 2009, issue no.2702.
Last month, Fair Water Use contacted the Chairman of the Murray-Darling Basin Authority, Mr Mike Taylor, urging him to clarify the priorities of the Authority.
It appears that the advice was heeded.
by Helga Vierich
Fire has long played a part in the ecology of the Kalahari Desert of Southern Africa. Among the Kua of the south-central Lalahari the power of natural and man-made fires is well understood. These hunter-gatherers use fire to control ticks, increase plant fruit yields, alter the species composition of wild plant communities, influence the movement of game, and to attract specific animals into snares and traps.
Whilst many people have been aware (but have mostly been ignored) that vegetation, especially forests, creates rain, and whilst desertification has been linked to deforestation historically many times, there is a new and robust theory to explain how this may happen.
See also How logging causes forest fires
This book paints a picture of the ecological mechanics of this continent, using clear, concise prose. It is a painlessly educative book. The bold claim of its subtitle, "How Australia's landscape can be saved," stands up to scrutiny.