Compromises of a Growing World With the world growing at a pace hard to match, the increasing need for space is turning out to be an area of concern. Deforestation in simple term means the felling and clearing of forest cover or tree plantations in order to accommodate agricultural, industrial or urban use.
Definitions[ edit ] Considerable controversy exists over the proper definition of the term "desertification" for which Helmut Geist has identified more than formal definitions. During most of these times, deserts have grown and shrunk independent of human activities. Paleodeserts are large sand seas now inactive because they are stabilized by vegetation, some extending beyond the present margins of core deserts, such as the Saharathe largest hot desert.
In this area, the level of desertification is very high compared to other areas in the world. All areas situated in the eastern part of Africa i. So, droughts are the rule in the Sahel region.
I am a bit technically challenged. I was trying to post a comment but couldn’t so tried this. I think Peter’s idea is a great one but a spin on it would be that you could propose that you would purchase the land at a reasonable price (It is a very small area of land) and in return you could assist them in building another half dozen that can be rented out and be very lucrative for them. Canada has an excessive expanse of forest and overall it would seem we do not have a deforestation issue. There may be certain regions with a deforestation issue however. permalink. UXBRIDGE, Canada (IPS) - The world's last remaining forest wilderness is rapidly being lost -- and much of this is taking place in Canada, not in Brazil or Indonesia where deforestation has .
The propagation of desertification in this area is considerable. The loss of topsoil means that plants cannot take root firmly and can be uprooted by torrential water or strong winds.
This has destroyed many villages in its path. Currently, photos show that the Gobi Desert has expanded to the point the entire nation of Croatia could fit inside its area. They will soon have to deal with the desert as it creeps closer. A mathematical model of this phenomenon proposed by C.
Klausmeier attributes this patterning to dynamics in plant-water interaction. Overgrazing of drylands by poorly managed traditional herding is one of the primary causes of desertification. Wildebeest in Masai Mara during the Great Migration.
Overgrazing is not caused by nomadic grazers in huge populations of travel herds  nor by holistic planned grazing. This is driven by a number of factors, alone or in combination, such as drought, climatic shifts, tillage for agriculture, overgrazing and deforestation for fuel or construction materials.
Vegetation plays a major role in determining the biological composition of the soil. Studies have shown that, in many environments, the rate of erosion and runoff decreases exponentially with increased vegetation cover.
Many scientists think that one of the most common causes is overgrazingtoo much consumption of vegetation by cattle. Controversially, Allan Savory has claimed that the controlled movement of herds of livestock, mimicking herds of grazing wildlife, can reverse desertification.
There is a suggestion that the last time that the Sahara was converted from savanna to desert it was partially due to overgrazing by the cattle of the local population.
Decision-makers are understandably averse to invest in arid zones with low potential. This absence of investment contributes to the marginalisation of these zones.
When unfavourable agro-climatic conditions are combined with an absence of infrastructure and access to markets, as well as poorly adapted production techniques and an underfed and undereducated population, most such zones are excluded from development. This results in mass migrations out of rural areas and into urban areas, particularly in Africa.
These migrations into the cities often cause large numbers of unemployed people, who end up living in slums. The increase in desertification in theses regions has degraded the land enough where people can no longer productively farm and make a profit.Half of the world's wetlands were lost last century.
Logging and conversion have shrunk the world's forests by as much as half. Some 9 percent of the world's tree species are at risk of extinction; tropical deforestation may exceed , square kilometers per year. Canada carefully monitors and regularly reports on the important issue of deforestation.
For the past 20 years, deforestation in Canada has been declining, and is currently at a rate of only %. Learn more about Canada’s low rate of deforestation.
Deforestation is an important issue, since shrinking forest cover reduces biodiversity, affects soil and water quality, impacts wildlife habitat and influences climate change. The Canadian government carefully monitors and regularly publishes reports on deforestation.
In many countries, deforestation, is both naturally occurring and human induced, it is an ongoing issue. Deforestation causes extinction, changes to climatic conditions, desertification, and displacement of populations as observed by current conditions and in the past through the fossil record.
Aug 20, · Deforestation has wiped out most other predators, so the lizards have lots of food and little competition.
Each year satellite images and maps . Forests. genetically engineered or Sustainability. and democracyno matter what forces stand in our way Issuu is a digital publishing platform that makes it simple to publish a discussion on the issue of deforestation in canada magazines.