Soil Erosion, Deforestation, Farming

“The Orinoco Basin extends across Veneuela and Colombia. The river’s delta is covered with tropical rain forest. For many years now, colossal palm oil plantations have been encroaching on this forest.

“But the forest floor is relatively poor in nutrients and rich in oxygen, making it unsuitable for monocultures. Once the soil is depleted, the planters use artificial fertilizers to keep production going as long as they can, and then they move on. But there’s another way. Planting many diverse crops in the same ground can help balance out soil use.” Sourced through Scoop.it from: www.dw.com

GR:  Forest soils are conditioned to support forests.  In dense forests, large proportions of the nutrients are contained in the trees.  Remove the trees and much of the natural wealth of the ecosystem is lost. Moreover, without their protective tree cover, soils wash away leaving behind little opportunity for forest recovery.  The suggestion that planting diverse crops is a good option is not a good one. Remove the trees and much of the local biodiversity is lost.  Even if crops can be planted that will protect the soils and maintain the amount of local biomass production, the loss of biodiversity and the loss of regional climate effects of the forest are not acceptable.

Forests are removed to produce food and desired products for human use.  The process is not sustainable.  We have to have the forests to maintain healthy Earth ecosystems. Thus, we have to reduce human need for food and products.  We have to reduce the human population.  Letting it continue to grow will bring about a terrible disaster for the Earth and all its life, including us.

See on Scoop.itGarryRogers NatCon News

Soil Isn’t Sexy

“Soil is the earth’s fragile skin that anchors all life on Earth. It is comprised of countless species that create a dynamic and complex ecosystem and is among the most precious resources to humans…Half of the topsoil on the planet has been lost in the last 150 years.” WWF

“Desertification is a phenomenon that ranks among the greatest environmental challenges of our time, unfortunately most people haven’t heard of it or simply don’t understand it.

“Desertification and land degradation is a global issue with desertification already affecting one quarter of the total land surface of the globe today

“Today the pace of arable land degradation is estimated at 30 to 35 times the historical rate. Land degradation is costing US$490 billion per annum and desertification is degrading more than 12m hectares of arable land every year – the equivalent of losing the total arable area of France every 18 months.

“Every morsel of food we eat . . . our clothes . . . our houses and most everything that’s in them…each scrap of paper, from birth certificates to books to dollars…our fuel…even the very oxygen we breath: All of it comes from plants, trees…and topsoil.”

Source: www.marketoracle.co.uk

GR:  Soil erosion is the least-mentioned major crisis of all.  When do all humans begin to mourn the wealth of the planet Earth that we have squandered?

Humans erode soil 100 times faster than nature

A new study shows that removing native forest and starting intensive agriculture can accelerate erosion so dramatically that in a few decades as much soil is lost as would naturally occur over thousands of years.

Source: phys.org

GR:  Add soil erosion to the top five human impacts:  Construction, invasive species, toxic wastes (including CO2), soil erosion, and harvesting (farming, fishing, grazing, hunting, logging, and mining).  The five are hard to separate, and they all relate to human population growth and migration.