Trees Giving Up Battle, But Sustainable Farming Offers Hope
Food Forests, Food Plants - Annual, Food Plants - Perennial, Global Warming/Climate Change, Plant Systems, Rehabilitation, Trees — by Craig Mackintosh
The silver bullet solution to climate change in many people’s book is to simply ‘plant a tree’. A recent study indicates that it might not be quite that simple…
Comments (2)The ability of forests to soak up man-made carbon dioxide is weakening, according to an analysis of two decades of data from more than 30 sites in the frozen north.
The finding published today is crucial, because it means that more of the CO2 we release will end up affecting the climate in the atmosphere rather than being safely locked away in trees or soil.
The results may partly explain recent studies suggesting that the amount of CO2 in the atmosphere is increasing faster than expected. If higher temperatures mean less carbon is soaked up by plants and microbes, global warming will accelerate.
Posted on: October 1, 2008
Nitrogen Fixing Trees - The Multipurpose Pioneers
Animal Forage, Food Forests, Food Plants - Perennial, Fungi, Plant Systems, Rehabilitation, Soil Biology, Trees — by Craig Elevitch
The myths about the wonders of nitrogen fixing trees are many. Craig Elevitch and Kim Wilkinson explain how to use them effectively.
Nitrogen Fixing Trees for Permaculture
 Flowers of the leguminous tree, Kowhai, the national flower of New Zealand |
Nitrogen fixation is a pattern of nutrient cycling which has successfully been used in perennial agriculture for millennia. This article focuses on legumes, which are nitrogen fixers of particular importance in agriculture. Specifically, three legumes (nitrogen fixing trees, hereafter called NFTs) are especially valuable in subtropical and tropical permaculture. They can be integrated in a permaculture system to restore nutrient cycling and fertility self-reliance.
Comments (0)Posted on: September 29, 2008
Humanure Handbook - Free Download
Compost, Conservation, DVDs/Books, Fungi, Potable Water, Rehabilitation, Soil Biology, Soil Conservation, Soil Erosion & Contamination, Waste Water, Water Contaminaton — by Craig Mackintosh
With chapters like ‘Crap Happens’, ‘Deep Shit’ and ‘A Day in the Life of a Turd’, this is sure to be an interesting book, albeit possibly not one to read over lunch?
With this wonderful substance piling up in all the wrong places (after all, we’re running out of clean water, and yet we’re crapping in it…), this taboo topic deserves a lot more attention than it gets. Enjoy the book - and special thanks to the author Joseph Jenkins for making this freely available (warning: 22mb PDF - if you want to download chapter by chapter, scroll down on this page, or just read online here).
Comments (0)Posted on: September 18, 2008
Water Worries
Biological Cleaning, Conservation, Food Shortages, Global Warming/Climate Change, Potable Water, Regional Water Cycle, Rehabilitation, Structure, Waste Water, Water Contaminaton, Water Harvesting — by Craig Mackintosh
Water, water, every where,
And all the boards did shrink;
Water, water, every where,
Nor any drop to drink. - Samuel Coleridge (1772-1834). The Rime of the Ancient Mariner, II
If you look down on our earth from space, the predominant colour is blue. The surface of our earth is approximately 70% water. In that respect, perhaps our planet would have been better called the Ocean, than the Earth. Yet, excepting expensive, energy intensive and environmentally problematic desalinisation techniques (PDF), we cannot use it for our daily personal water intake requirements.
Comments (0)Posted on: September 12, 2008
Soil - Our Financial Institution
Biological Cleaning, Conservation, Rehabilitation, Soil Biology, Soil Composition, Soil Conservation, Soil Erosion & Contamination, Structure — by Craig Mackintosh
by Craig Mackintosh - originally published on Celsias
Soil - the substance you walk on, build on, and live from - provides your food, clothing, and even the air you breathe. It gives warmth, shelter, and the goods you possess. Soil is, I believe, a substance that is under-acknowledged, and also under attack, and its misuse is contributing greatly to the excessive release of CO2 into our atmosphere - making it a large contributor to global warming. Therefore, I felt it high time we came to its defense. Here goes.
Posted on: August 7, 2008
Greening the Desert
Food Forests, Fungi, Land, Rehabilitation, Salination, Soil Biology, Swales, Trees — by Craig Mackintosh
This is just one example of how permaculture can transform the environment, and, in so doing, dramatically change lives. By evidencing the dramatic transformation possible in the world’s worst agricultural scenarios, we hope to make people stand up and listen.
Big Agribusiness would convince us that continuing with fossil fuel dependent monocrop systems and genetically modified crops is the way of the future, but with fuel, transport and fertiliser costs skyrocketing, and growing evidence that genetic tinkering is causing far more harm than good, we, instead, advocate tried and tested methods of working with nature for the benefit of man.
Below is a behind the scenes look at Greening the Desert.
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Posted on: March 1, 2007
Use of permaculture under salinity and drought conditions
Aid Projects, Plant Systems, Rehabilitation, Salination, Swales, Water Harvesting — by Administrator
Jordan is an arid country with limited water resources. The available renewable fresh water resources dropped drastically to an annual per capita share of 155 m3 in recent years compared to 3400 m3/cap/year in 1946. It is considered also as one of the 10 poorest countries worldwide in water resources (Countries with less than 500 m3/capita/year are regarded as having “absolute scarcity”).
In 2004, the total water use in Jordan was 866 million cubic meters (MCM) at the total population of about 5 million people. The total renewable resources in Jordan is estimated at 780 MCM include ground water at 275 MCM/year and surface water at 505 MCM/year of which only 70% is of economic use. An additional 143 MCM/year is estimated to be available from fossil aquifers. Brackish aquifers are not yet fully explored but at least 25 MCM/year is expected to be accessible for urban uses after desalination.
The demand on water use has been increased with increasing the socioeconomic development in the country. Agriculture consumes the major parts of water resources of about 62.5% of the available resources, domestic use consumes about 32.5% while industry about 4.3% and rural uses is 0.8% of the available water resources. Click for more…
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