久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

Make me your Homepage
left corner left corner
China Daily Website

Science has bigger say in GM food

Updated: 2013-10-29 07:18
By Shenggen Fan ( China Daily)

Whether genetically modified foods can help eradicate food insecurity and poverty has been the subject of contentious and polarizing debate.

Science has bigger say in GM food

The backdrop to this debate is a global agricultural system that is facing increasing challenges from rising climatic variability, population growth, urbanization, and natural resource depletion. According to the Food and Agriculture Organization, food production needs to increase by 60 percent by 2050 in order to feed 9 billion plus people. Scientists and policymakers alike are searching for innovative ways to ensure sufficient access to nutritious food, today and for generations to come. Unlike previous science-based initiatives to raise productivity in the agricultural sector (such as the Green Revolution), the potential of GM crops to combat food security and poverty challenges is muddled in hotly contested discussions.

The considerable expansion of GM crop varieties worldwide over the last two decades is indisputable. The total area devoted to GM crops has increased 100-fold from 1.7 million hectares in 1996 to 170 million hectares in 2012. Developing countries now grow more GM crops than developed countries (in terms of area), largely driven by Brazil's recent fast-paced adoption of GM crops. China is home to approximately 4 percent of the total global area devoted to GM crops. Soybeans, maize, cotton, and canola dominate GM crops globally, whereas China's focus is on cotton, papaya, and poplar.

To date, a wide body of (peer-reviewed) scientific impact studies shows that commercially-available GM crops are safe for people and the environment. According to a 2010 review of the safety of GM crops by the European Union, "the main conclusion to be drawn from the efforts of more than 130 research projects, covering a period of more than 25 years of research, and involving more than 500 independent research groups, is that biotechnology, and in particular GMOs, are not per se more risky than, for example, conventional plant breeding technologies." Other international and national scientific bodies, such as the World Health Organization, have reached the same conclusion.

The documented impacts of GM crops point to many productivity, environmental, and socio-economic benefits among large- and small-scale farmers alike. Genetic engineering can boost yields by developing plant varieties that have increased resistance to stresses such as disease, pests, and droughts, lower fertilizer and water application, and higher nutritional quality.

Previous Page 1 2 Next Page

 
8.03K
 
...
主站蜘蛛池模板: 国内精品久久久久久久久 | 欧美特黄一级aa毛片 | 欧美毛片在线观看 | 久久精品国产精品亚洲艾 | 大学生一级一片第一次免费 | 在线精品亚洲欧洲第一页 | 收集最新中文国产中文字幕 | 色播亚洲精品网站 亚洲第一 | 网站免费满18成年在线观看 | 免费国产不卡午夜福在线观看 | 国产精品久久国产三级国不卡顿 | 久久精品网站免费观看 | 国产91丝袜在线播放九色 | 精品免费久久久久久久 | 一区二区三区日韩精品 | 国产成人精品福利网站在线 | 国产草草影院 | 亚洲国产另类久久久精品小说 | 亚洲精品一区二区三区 | 欧美操操操| 国产日韩欧美网站 | 中文毛片 | 欧美一级视频在线观看 | 国产高清在线精品 | 男人的天堂久久香蕉国产 | 国产成人免费高清视频 | 国产一区二区不卡 | 国产三级精品久久三级国专区 | 熟女毛片 | 国产精品一级香蕉一区 | 欧美日韩一二区 | 中文字幕人成乱码在线观看 | 91欧洲在线视精品在亚洲 | 亚洲精品美女 | 亚洲一级毛片免费观看 | 日本韩经典三级在线播放 | 亚洲综合在线观看视频 | 亚洲资源在线观看 | 久久免费看视频 | 亚洲国产成人综合精品2020 | 亚洲天堂网在线观看 |