Primeval forests absorb carbon dioxide, finding

时间：2006-12-07 01:39:07

（单词翻译:单击）

Chinanews, Guangzhou, Dec. 6 – A Chinese scientist has made a major breakthrough in the world science of ecological1 study. Zhou Guoyi, a researcher of the South China Botanical Garden under the Chinese Academy of Sciences, has recently found that soil of primeval forest can absorb large amount of carbon. His finding helps explain why over half of the carbon dioxide has “disappeared” on earth. His finding was recently published in the latest Science magazine. This is the second time that Chinese scientists have published their findings in Science on the study of carbon, the Guangzhou Daily reported.

 

Nature, another world-renowned science magazine, regards the new finding as a “surprise” to the international science circle, saying that it will reposition traditional theories on ecological study. The new finding was conducted in Dinghu Mountain in Zhaoqing City, Guangdong Province.

 

Traditional theories usually hold that compared with immature2 forests, matures forests’ function in absorbing carbon was relatively3 weak, or they can not even absorb any carbon at all. In other words, traditional theories think that primeval forests can not absorb carbon dioxide. However, for a long time, scientists cannot explain why a large amount of carbon dioxide released by the earth has finally disappeared.

 

For the past 25 years, Zhou Guoyi and his colleagues have carried out researches on the mature forests located in the Dinghu Mountain National Nature Reserve. Their research shows that the amount of organic carbon stored in the soil layer 0-20 centimeters under ground increases at a rate of 0.61 ton per hectare every year. In other words, mature forests are capable of absorbing large amounts of organic carbon. Based on these findings, Zhou estimates that half or two-thirds of the carbon is absorbed by the soil in mature forests.

 

Their findings can help scientists to figure out how much carbon dioxide released in China is absorbed by primeval forests, thus alleviating4 China's pressure in limiting its carbon dioxide emission5.

 

Zhou estimates that in China, 6% of the country's territory is covered by mature forests. As China will start to carry out its duty in the Kyoto Protocol6 in 2012, his findings can help China to figure out the exact number of its carbon dioxide emission, which will be beneficial to China’s negotiation7 talks in the Kyoto Protocol.

 
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1 ecological IrRxX     
adj.生态的，生态学的
参考例句：
  • The region has been declared an ecological disaster zone.这个地区已经宣布为生态灾难区。
  • Each animal has its ecological niche.每种动物都有自己的生态位.
2 immature Saaxj     
adj.未成熟的，发育未全的，未充分发展的
参考例句：
  • Tony seemed very shallow and immature.托尼看起来好像很肤浅，不夠成熟。
  • The birds were in immature plumage.这些鸟儿羽翅未全。
3 relatively bkqzS3     
adv.比较...地，相对地
参考例句：
  • The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
  • The operation was relatively painless.手术相对来说不痛。
4 alleviating dc7b7d28594f8dd2e6389293cd401ede     
减轻，缓解，缓和( alleviate的现在分词 )
参考例句：
  • If it's alleviating pain,who knows what else it's doing? 如果它减轻了疼痛，天知道还影响什么？
  • Measuring poverty is not the same as alleviating it, of course. 当然，衡量贫困和减轻贫困是截然不同的。
5 emission vjnz4     
n.发出物，散发物；发出，散发
参考例句：
  • Rigorous measures will be taken to reduce the total pollutant emission.采取严格有力措施，降低污染物排放总量。
  • Finally,the way to effectively control particulate emission is pointed out.最后，指出有效降低颗粒排放的方向。
6 protocol nRQxG     
n.议定书，草约，会谈记录，外交礼节
参考例句：
  • We must observe the correct protocol.我们必须遵守应有的礼仪。
  • The statesmen signed a protocol.那些政治家签了议定书。
7 negotiation FGWxc     
n.谈判，协商
参考例句：
  • They closed the deal in sugar after a week of negotiation.经过一星期的谈判，他们的食糖生意成交了。
  • The negotiation dragged on until July.谈判一直拖到7月份。

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