Definition Climatefarming en francais

Definition Climate Farming

Climate farming uses agricultural means to keep carbon dioxide and other greenhouse gasses from escaping into the atmosphere. Like organic farming, climate farming maintains biodiversity and ecological balance on productive, argicultural land. But climate farmers like Hans-Peter Schmidt go a step further and covert leftover organic mass into biochar, a solid carbon compound that can improve soil quality. Biochar production also creates a kind of gas that can then be burned to help generate power. A climate farm could grow food, generate power, and help keep carbon out of the air.

Climatefarming – Pour une agriculture durable

von Hans-Peter Schmidt

Le climatefarming est souvent décrit comme une méthode agricole au moyen de laquelle du CO2 est prélevé de l’atmosphère et stocké de façon stable dans le sol sous forme de carbone. Ceci pourrait permettre de freiner le changement climatique. Mais le climatefarming, c’est également un concept écologique durable pour l’agriculture du future, qui produira aussi bien des denrées alimentaires que de l’énergie et de l’air propre, encouragera la biodiversité et protégera le paysage.

Au travers de leurs feuilles, les plantes prélèvent du dioxyde de carbone contenu dans l’air et le transforment à l’aide de la lumière, de substances minérales et de l’eau en molécules carboniques. Lorsque la plante meurt ou pourrit, ou si elle est mangée et digérée, les molécules longues de carbone sont de nouveau scindées. Ce processus libère de l’énergie et donc du carbone qui, composé à plus de 99% de CO2, s’évapore dans l’atmosphère. (en savoir plus ...)

Donnerstag, 21. Februar 2013

BusinessMirror - Sahel region learning to reap benefits of shade

Sahel region learning to reap benefits of shade

WASHINGTON, D.C.—In Africa’s Sahel region, agroforestry techniques using traditional plantings known as “fertilizer trees” to increase soil fertility, as well as harvesting and grazing regulations, are offering new solutions to both food and human security.

Such approaches were nearly lost in recent decades following devastating droughts in the Sahel. Now they are making a belated but welcome comeback. According to a 2012 US Geological Survey, “regeneration agroforestry” in the Sahel stands at over 5 million hectares of agricultural fields newly covered by trees—and growing.

“Agroforestry is the future of agriculture in the drylands and sub-humid regions,” Chris Reij, a senior fellow at the World Resources Institute, a Washington-based think tank, told IPS. “In southern Niger, for instance, farmers have improved millions of hectares of land through regenerating and multiplying valuable trees whose roots already lay beneath their land.”

Details Category: Agri-Commodities Published on Tuesday, 19 February 2013 18:46 Written by Joe Hitchon / Inter Press Service read at: BusinessMirror - Sahel region learning to reap benefits of shade:

Climatefarming in northern Senegal