此外,河流筑坝等工程也增加了沉积物的产量,更不用说大气中二氧化碳和甲烷的增加。
Also, things like the damming of rivers has caused increased sediment production, not to mention the addition of more carbon dioxide and methane in the atmosphere.
然而,由于地壳的变动,那些包含着古代动植物尸体的沉积物重新回到了地球表面,在那里他们分解,并又一次的从大气中吸取氧气。
As the crust shifts, however, it can bring sediments containing ancient corpses back to the surface, where they decompose, removing oxygen from the atmosphere once more.
沉积物中细菌对这一部分物质的分解极大影响着大气二氧化碳。
The breakdown of a portion of this matter by bacteria in the sediment contributes significantly to atmospheric carbon dioxide.
瑞典研究人员发现沉积物对碳的截留作用对温度变化极其敏感,气候一变暖,大气中二氧化碳的排放量就会增加。
Swedish researchers have shown that carbon retention by sediment is highly temperature-sensitive and that a warmer climate would result in increased carbon dioxide emissions to the atmosphere.
一部分仍沉睡于沉积物中,间或达几千年,而其余的大部分则分解为二氧化碳和甲烷,释放到大气中。
A portion remains in the sediment, sometimes for thousands of years, while the rest is largely broken down to carbon dioxide and methane, which are released into the atmosphere.
Bodélé盆地,这个被古代湖底沉积物覆盖的撒哈拉平原,面积1万平方英里,每年横扫这里的大风会把70万吨沙尘送入大气中。
Winds whipping across the Bodélé, a 10,000 square mile Saharan plain covered by ancient lakebed sediments, carry 700,000 tons of dust into the atmosphere annually.
过去冰河时代发生的部分原因在于在几百万年的时间里,石头的风化吸收了大气中的二氧化碳,然后以沉积物的形式把这些二氧化碳固定在海底。
Past glacial ages occurred partly because the weathering of rocks, over millions of years, pulls CO2 from the atmosphere, locking it in ocean floor sediment.
综述了从沉积物、底水和低层大气三维空间进行天然气水合物地球化学识别方法的研究成果。
The authors introduce the research results of identifying gas hydrate from sediments, bottom water and lower atmospheric layers.
这些冰河沉积物下方的较老岩层,是沥青铀矿与黄铁矿碎屑;这两种矿物被认定为大气中氧气极为稀少的证据。
In the older rocks below these glacial deposits are detrital uraninite and pyrite two minerals considered evidence for very low levels of atmospheric oxygen.
见有汞异常浓度由沉积物向上经底层、表层海水到海面大气渐次降低的趋势。
The trend of decrease in mercury content is seen from sediments upwards to bottom seawater, surface seawater, and sea-surface air.
碳循环一般包括以下几个主要的碳储藏所:大气、陆地生物圈、海洋、沉积物以及地球内部。
The carbon cycle is thought of including the following major reservoirs of carbon: the atmosphere, the terrestrial biosphere, the oceans, the sediments and the Earth's interior.
碳循环一般包括以下几个主要的碳储藏所:大气、陆地生物圈、海洋、沉积物以及地球内部。
The carbon cycle is thought of including the following major reservoirs of carbon: the atmosphere, the terrestrial biosphere, the oceans, the sediments and the Earth's interior.
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