Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

People say we're running out of energy. That's only true if we stick with these old 19th century technologies. We are awash in energy from sunlight.

 

Ray Kurzweil

 

The world is losing 2,000 hectares of farm soil daily to salt damage

RATE THIS! +28
Posted in Science on 29th Oct, 2014 08:38 PM by AlexMuller

For more than 20 years, an average of 2,000 hectares of irrigated land in arid and semi-arid areas across 75 countries have been degraded by salt, according to a study. Today an area the size of France is affected, about 62 million hectares (20%) of the world's irrigated lands, up from 45 million hectares in the early 1990s.

 
Salt-degradation occurs in arid and semi-arid regions where rainfall is too low to maintain regular percolation of rainwater through the soil and where irrigation is practiced without a natural or artificial drainage system. Irrigation practices without drainage management trigger the accumulation of salts in the root zone, affecting several soil properties and reducing productivity.
 
"To feed the world's anticipated nine billion people by 2050, and with little new productive land available, it's a case of all lands needed on deck," says principal author Manzoor Qadir, Assistant Director, Water and Human Development, at UN University's Canadian-based Institute for Water, Environment and Health. "We can't afford not to restore the productivity of salt-affected lands."
 
The study, "Economics of Salt-induced Land Degradation and Restoration,"is published Tuesday Oct. 28 in the UN Sustainable Development journal Natural Resources Forum. Zafar Adeel, Director of UNU-INWEH, notes the UN Food and Agriculture Organization projects a need to produce 70% more food by 2050, including a 50% rise in annual cereal production to about 3 billion tonnes.

Tags: salt waterseafarmingagricultureirrigationenvironment

Read original article » Back to category

Comments

Author: Guest
Posted: 2014-10-30
+1
The facts like this one that our population is growing out of control to be about 9 billion in 2050 and its consequences should not be overlooked. With so many critical issues unresolved, including energy and food, someone has to make a loud wake up call Reply


 

Recent headlines

  • Posted in Business on 2017-08-22 18:43:15
    Beyond Rooftops: States Move to Encourage Community Solar..read more
    Posted in Business on 2017-08-22 18:36:18
    Study: Korea leading the way in robot density in.....read more
    Posted in Hardware on 2017-08-22 18:31:11
    $30 billion Small Satellite market from 2017 to 2026..read more
    Posted in Medicine on 2017-08-21 19:26:00
    Darmiyan’s software detects early stages of Alzheimer’s..read more
    Posted in Business on 2017-08-21 19:20:53
    Google needs to pay Apple a fortune to remain the default.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Scientists probe Neptune's depths to reveal secrets of icy.....read more
    Posted by AlexMuller
    New terahertz imaging approach could speed up skin cancer.....read more
    Posted by AlexMuller
    Rebutting the claim that antidepressants do not work..read more
    Posted by AlexMuller
    Artificial neural networks decode brain activity during.....read more
    Posted by AlexMuller
    Four Earth-sized planets detected orbiting the nearest.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me