Humans have destroyed a third of Earth’s farmland in 40 years

지구 농지가 1/3 날라갔습니다

지난 40년동안 지구는 인간이 유발한 잠식과 오염으로 농지 1/3을 잃었습니다. 

토양층은 형성되는 속도보다 100배 빠른 속도로 날아가 버리거나, 씻겨져 내려갑니다. 

재난을 막기 위해 정부들은 농사와 가축이 돌아 가면서 토지를 이용하도록 

지속가능한 농업 관행을 촉진하기 위한 정책들을 실현해야 합니다.  

http://news.sciencemag.org/sifter/2015/12/humans-have-destroyed-a-third-of-earth-s-farmland-in-40-years

(최고의 댓글입니다)
Monocropping, planting crops unsuitable for the climate, soil and or terrain, failure to protect the soil in between crops and general short vs long-term management policies at all levels exacerbate the problem.

We have known for decades that tilling the soil destroys the soil, yet no-till agriculture is still uncommon. Similarly, we have known that incorporating activate carbon in the soil preserves nutrients since the 1980's, yet today in America we are still researching the 'best' way to apply this knowledge.

Intercropping has been known to be the best productivity for soil while retaining the soil and nutrients for literally centuries, yet automated modern farming methods ignore this in favor of ease of management.

Luckily, manufacturing soil doesn't have to take centuries--it can and is being done in a few years.

Most of the Americas was under human cultivation before 1400--but it was not 'agriculture' (monocropping) as it was practiced in Europe, and was unrecognizable to the Europeans who came here.

Our society doesn't insist that farmers protect and husband the soil for the future--emphasis is upon rapid return and extracting the highest value during the owner's lifetime. Because such wasteful practices are encouraged by financial rules (written by these rapists) farmers who do husband their resources often cannot compete with those willing to sell off their capital (soil) in return for quick profits.

Additionally, we have gone abroad and widely promoted monocropping of inappropriate crops to people whose agricultural history was multi-cropping or forestry. In Nepal this destroyed most of the original forests which supported the population, and then the soil as these untrained people tried to grow Western style crops in hills with high rainfall. (After destroying the forests in Nepal the World Bank came in to plant monoculure white pine, a tree neither indigenous to the area nor with any beneficial food uses.) This is similar to the Chinese forcing Tibetans to give up their existing animal husbandry and crops to grow crops unsuitable to the climate and elevations at which they live.