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Scientists from China, Sweden and the United Stateshave developed a high-yielding rice that can reduce methane emissions, a major greenhousegas blamed for global warming, from paddies。

來自中國(guó)、瑞典和美國(guó)的科學(xué)家研發(fā)了一種新型高產(chǎn)水稻，同時(shí)還能減少甲烷的釋放量。甲烷是水稻產(chǎn)生的造成全球變暖的主要溫室氣體。

By inserting a barley gene into rice, Sun Chuanxin and his colleagues created SUSIBA2 Rice,which stores more starch in the section of the rice above ground, according to a paperpublished on the latest issue of Nature。

發(fā)布在最新一期《自然》雜志上的文章介紹，通過將大麥基因植入水稻中，孫傳信及其同事研發(fā)了SUSIBA2型水稻，這種水稻將更多的淀粉儲(chǔ)存在根部以上的稻穗中。

This means the grains will have more starch while the root will exude less nutrients that willlater be turned into methane by microbes in the soil, Sun, who works with Swedish University ofAgricultural Sciences, told Xinhua。

這意味著稻谷能有更多的淀粉，而減少通過根部釋放到土壤中的養(yǎng)分，這些養(yǎng)分會(huì)被土壤中的微生物轉(zhuǎn)化為甲烷。瑞典農(nóng)業(yè)科學(xué)大[微博]學(xué)華人科學(xué)家孫傳信告訴新華社。

"It solves two major problems mankind faces at one time: environmental degradation and theneed for increased grain output, " Wang Feng, co-author of the paper from Fujian Academy ofAgricultural Sciences, told Xinhua。

“這樣一舉兩得：既解決了環(huán)境的惡化問題，又滿足了糧食產(chǎn)量增加的需求。”論文合著者、福建農(nóng)業(yè)科學(xué)院王鋒告訴新華社。

Wang said the rice can cut methane discharge by more than 90 percent during summer andmore than half during autumn, as "the rice displays a greater emission reduction effect in hightemperatures."

王鋒稱，這種水稻在夏天能減少90%的甲烷釋放量，秋天能減少50%。“溫度越高，該水稻對(duì)甲烷的釋放量有更好的降低作用。”

Meanwhile, small-scale trials have also suggested an increased output: a single plant of the newbreed has 300 more grains with a starch content 10 percent higher, Wang added。

同時(shí)，王鋒還介紹道，小規(guī)模的試驗(yàn)表明還能增加產(chǎn)量：新型水稻每株能產(chǎn)300多粒稻谷，淀粉含量比常規(guī)水稻多10%。

Wang said the team is working on applications for the breed in different areas, seasons andusing different farming techniques. "It’s still far away from mass application, but at least wesee the light of hope."

王鋒介紹，他的團(tuán)隊(duì)正在將種子應(yīng)用到不同的地區(qū)、不同的季節(jié)以及使用不同的耕作方式。“目前距離大規(guī)模推廣還很遙遠(yuǎn)，但至少看到了希望的曙光。”

Human-induced methane, though less abundant than carbon dioxide in the air, is responsiblefor 20 percent of the global warming effect. Rice paddies are the largest single source ofmethane linked to human activity。

人類活動(dòng)造成的甲烷雖然在空氣中的含量不及二氧化碳，但全球溫室效應(yīng)卻有20%來自甲烷。水稻則是人類活動(dòng)產(chǎn)生甲烷最大的單一來源。

According to the Ministry of Agriculture, China produces 209 million tonnes of rice in 2014, or28 percent of the world’s total of 734 million。

根據(jù)農(nóng)業(yè)部數(shù)據(jù)，中國(guó)在2014年生產(chǎn)2.09億噸水稻，占世界總產(chǎn)量7.23億噸的28%。