effects of climate change on soil/land management?(plz giv the ans. in detail or give the source)?

Answer 1

If you could specify what type of climate change you are talking about, it might help. If you are talking about a global climate change of warming temperatures, then we will have an increasing "green" season - the period of time during which temperatures are conducive to plant growth. This will have greater effect in lands as you move closer to the poles.

Increased temperatures will result in increased rainfall due to increased evaporation and plant transpiration. Since the same scientists who predict the global climate change have said that the warming is due to increased anthropogenic CO2 and subsequent greenhouse effect, AND NOT a change in insolation, then this would have to result in a cooling of the atmosphere above the troposphere, leading to increased precipitation.

Some scientist predict unpredictable weather patterns of flood and drought - but that sounds kind of silly to comment on. Weather patterns have always had an unpredictability, but that's more a fault on man's ability to predict or rather inability to predict the level of randomness in natural systems.

But, you didn't say "future" soil/land management, did you. As the current science of climate change focuses on prevention or avoidance of future change, it has had a NET NEGATIVE EFFECT on current soil/land management. Billions of dollars that are spent annually on the environment are being funneled away on speculative research that has not produced any significant change in global climate. That's billions of dollars that could have been spent on known technology to improve soil and land management, vanished (quite literally) into thin air.

Answer 2

Shifting weather patterns mean some areas receive less rainfall; the ground becomes barren and unable to sustain crops. In many parts of the world the layer of topsoil is both very thin and very poor. The dry, dusty soil is readily blown away and the area becomes desert. African and Asian countries are particularly hard hit

For the reasons mentioned above there will be a major impact on agriculture. Rising sea levels will also impact resulting in the loss of large areas of agricultural land, the consequences of which will be population migration, famine and / or the need to import food from elsewhere. Again, it will be the African and Asian countries that are hardest hit with crop production falling by up to a third

Global warming can be a doubled edged sword. It has already resulted in the melting of a million square kilometres of Siberian permafrost, an area four times the size of the UK and covering the world’s largest peat bog. The melting has created land suitable for crops but at the same time has causing billions of tons of methane gas to be released from the peat, which in turn contributes to further global warming. A further consequence is the loss of over 1,000 lakes but the creation of many new ones.

We may one day see crops being grown in Antarctica. Grass is now becoming established there for the first time in 10,000 years.

Desertification is another problem, millions of people have already lost their lands as millions of square kilometres of agricultural land become desert. A further 50 million people are expected to be displaced within the next 10 years.

One very interesting area, about which I know very little so won't comment, is permaculture. Have a look at some of the links that Belladonna included in her question http://answers.yahoo.com/question/index;_ylt=ArjoFY0J6dBACq9PixdKGg7ty6IX?qid=20070620061231AA6HJ7k and also have a look at some of Byderule's answers http://answers.yahoo.com/my/qa/index;_ylt=ArrRNoePu.SomeZxh0teaozsy6IX?link=answer&more=y&show=AA10740247


The Times - Grass flourishes in warmer Antarctic
http://www.timesonline.co.uk/tol/news/uk/article405824.ece
Wikipedia - Desertification
http://en.wikipedia.org/wiki/Desertification
BBC News - Desertification
http://news.bbc.co.uk/1/hi/world/africa/6247802.stm
Related articles from The Guardian
http://www.guardian.co.uk/climatechange/story/0,12374,1517935,00.html
http://www.guardian.co.uk/climatechange/story/0,12374,1546824,00.html
http://www.guardian.co.uk/international/story/0,,1503170,00.html

Answer 3

effect of climate can be seen on lands
(1)due to sudden change in climate soilHAD LOST IT'S HUmus content
(2) due to global warming climate is become hot which had killed many useful animals like earthworm
(3)due to change in climate soil has lost it's water content
(4)due to change in climate by global warming their will regular rains .& floods . which took away fertile layer of soil