2014.07.07【英译中】US Corn Yields Sensitive to Drought

NordicSnow (Ariel) 路人甲
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发表于:2014-07-07 14:24 [只看楼主] [划词开启]

US Corn Yields Sensitive to Drought

美国玉米产量对干旱敏感



Genetically modified corn in the United States is starting to become more sensitive to drought, study says.

研究人员称,美国的转基因玉米开始对干旱变得更加敏感。 


David Lobell, an associate professor at Stanford University, led the research team that examined and determined which conditions are essential to corn production. The data came from over a million crop insurance records from 1995 to 2012. The team also kept track on how farmers deal with the food crops during specific conditions.

斯坦福大学的一位副教授David Lobell领导的研究小组考查并明确了保证玉米产量的必备条件。这些数据来自1995年到2012年间超过一百万条的农作物保险纪录。该小组也纪录了农民如何应对特定条件下的粮食作物。 


Over the past decades, the corn yield in Midwestern US has dramatically increased as commercialized corn became genetically modified. This development allowed farmers to plant the crops closely together. With this, more corn can be planted, which then results in an increased yield.

在过去的十年里,由于商业玉米变成了转基因,美国中西部的玉米产量大幅上涨。这一发展允许农民将作物种植得更为密集。从而可以种植更多玉米,使得产量增加。


However, the study, which was published in the journal Science, revealed that genetically modified corn in the US have become more susceptible to drought. The research found that the dry season or the lack of water supply has resulted in a significant decrease in corn yields. Lobell stressed that if corn becomes more sensitive to drought, crops could lose 15% to 30% of their yields in less than 50 years.

然而,被发表在科学期刊上的这项研究显示,美国的转基因玉米变得更加容易受干旱影响。调查发现,干旱季节或者水供应不足已导致玉米产量大大降低。Lobell强调,如果玉米变得对干旱更加敏感,不到50年,作物将会降低15%到30%的产量。 


Corn production in the US depends on natural rainfall rather than irrigation. But as climate change worsens, a more extreme hot and dry season is expected to come. If this happens, corn fields may then experience a severe water shortage.

相较于灌溉,美国的玉米产出更加依赖自然降雨。但由于气候恶化,极度炎热以及干旱季节将如期而至。这种情况一旦发生,玉米领域可能会遇到严峻的水资源短缺。


The study suggests that farmers change the way corn is planted in order to solve this problem. Another solution is to prevent global warming from worsening, which can be achieved by reducing carbon emissions.

为解决这一问题,该研究建议农民改变玉米的种植方法。另一解决方案是通过减少碳排放从而防止全球变暖恶化。

(via:rarejob)

最后编辑于:2014-07-07 14:24
分类: 英语
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