I think we are running out of trees, we are overusing products made from tree. we should do like what the pic said "Use only what you need", for our world can be sustainable grow in the future, we should take care of lovely world, otherwise, we have nothing left to our children. Further more,
Cutting too many trees is also called ----Deforestation, and it is a contributor to global warming, and is often cited as one of the major causes of the enhanced greenhouse effect.
And the water cycle is also affected by deforestation. Trees extract groundwater through their roots and release it into the atmosphere. When part of a forest is removed, the trees no longer evaporate away this water, resulting in a much drier climate. Deforestation reduces the content of water in the soil and groundwater as well as atmospheric moisture. The dry soil leads to lower water intake for the trees to extract. (Secretary-General’s Report on) Deforestation generally increases rates of soil erosion, by increasing the amount of runoff and reducing the protection of the soil from tree litter. There is a good example of disadvantages of deforestation. China's Loess Plateau was cleared of forest millennia ago. Since then it has been eroding, creating dramatic incised valleys, and providing the sediment that gives the Yellow River its yellow color and that causes the flooding of the river in the lower reaches (hence the river's nickname 'China's sorrow'). Deforestation on a human scale results in declines in biodiversity(Sten,2001).[
Underlying Causes of Deforestation and Forest Degradation http://www.wrm.org.uy/deforestation/UNreport.html
Sten Nilsson, Do We Have Enough Forests?, American Institute of Biological Sciences, March 2001 http://www.actionbioscience.org/environment/nilsson.html by Howard
Wow, Jay thank you a lot for your comment! You did a lot research on that.
As you say the deforestition affects the water cycle and increases the rates of soil erosion we should think how we can stop deforestiotion with our behaviour. With your research we can see that there is interest out there. We may post upcoming Top 5 on how you can act to reduce deforestation.
Do you have other sources you use more than you actually need?
This comment has been removed by the author.
ReplyDeleteI think we are running out of trees, we are overusing products made from tree. we should do like what the pic said "Use only what you need", for our world can be sustainable grow in the future, we should take care of lovely world, otherwise, we have nothing left to our children. Further more,
ReplyDeleteCutting too many trees is also called ----Deforestation, and it is a contributor to global warming, and is often cited as one of the major causes of the enhanced greenhouse effect.
And the water cycle is also affected by deforestation. Trees extract groundwater through their roots and release it into the atmosphere. When part of a forest is removed, the trees no longer evaporate away this water, resulting in a much drier climate. Deforestation reduces the content of water in the soil and groundwater as well as atmospheric moisture. The dry soil leads to lower water intake for the trees to extract. (Secretary-General’s Report on)
Deforestation generally increases rates of soil erosion, by increasing the amount of runoff and reducing the protection of the soil from tree litter. There is a good example of disadvantages of deforestation. China's Loess Plateau was cleared of forest millennia ago. Since then it has been eroding, creating dramatic incised valleys, and providing the sediment that gives the Yellow River its yellow color and that causes the flooding of the river in the lower reaches (hence the river's nickname 'China's sorrow').
Deforestation on a human scale results in declines in biodiversity(Sten,2001).[
Underlying Causes of Deforestation and Forest Degradation
http://www.wrm.org.uy/deforestation/UNreport.html
Sten Nilsson, Do We Have Enough Forests?, American Institute of Biological Sciences, March 2001
http://www.actionbioscience.org/environment/nilsson.html
by Howard
Wow, Jay thank you a lot for your comment! You did a lot research on that.
ReplyDeleteAs you say the deforestition affects the water cycle and increases the rates of soil erosion we should think how we can stop deforestiotion with our behaviour.
With your research we can see that there is interest out there. We may post upcoming Top 5 on how you can act to reduce deforestation.
Do you have other sources you use more than you actually need?
Mendis