Wednesday, 24 July 2013

Phosphate Mining in Chengdu, China

the mining site - greenpeace.org

What's happening? -

An Environmental research group have discovered that phosphate mining in the Longmen Mountian in the Sichuan province of China, greatly increasing the siesemic area's risk to earthquakes and natural disasters and moreover, endangering wildlife reserves and a nearby population of pandas. The phosphate is used in chemical fertilizers which are used to allow for China's mass plant production to feed a rapidly growing population. Plants need phosphate in order to stimulate leaf and root growth and to prevent disease, and China's low-phosphate soil means fertilization is necessary for efficient plant growth.


What threat does phosphate mining cause?

The area surrounding the phosphate mining site is prone to earthquakes and landslides and was hit by a devastating earthquake in 2008. A Greenpeace East Asia report highlighted the role that the phosphate mine has in lowering the stability of the mountain geology, imposing a greater risk of landslides, earthquakes and natural disasters to the area, its inhabitants and wildlife.
pandas are being threatened by the mining
Moreover, the phosphate mining activity is having a detrimental impact on a nearby nature reserve which is home to 11 endangered pandas. In 2012, the province's government lowered the size of the reserve's area to allow for increased phosphate mining, greatly reducing the panda's habitat and the survival chances of the species.

What can be done to reduce this threat?

- Appeals need to be made to the Sichuen Province Governement to halt mining in order for a full risk analysis to be carried out so measures can be taken to ensure that phosphate mining is strictly regulated and done without risk to the area.
- Plant nutritienist, Zhang Fusuo, has reported that China uses phosphate based plant fertilizer at levels much higher than actually nescessary. China's phosphate fertilizer use could be reduced by: encouraging farmers to use fertilisers at an appropriate level and to use 'build-up' measures to keep the soil phosphate at an optimum level; using technology to manipulate the chemistry of the layer of soil surrounding the roots, the rhizosphere, to increase the percentage of phosphate in the soil plants can uptake; using animal manure as a fertilizer, which would also greatly decrease the pollution of water ways caused by run-off of animal manure which triggers harmful algal bloom, killing fish and endangering the area.

sources:
Greenpeace - the campaigning organisation have highlighted and provided information on the issue in their magazine and blog. http://www.greenpeace.org/international/en/news/Blogs/makingwaves/uglyfood-the-other-truth-about-chemical-ferti/blog/44782/
Nature - this article contains in-depth information on the phophate fertilizer issue in China

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