专用能源作物的开发 已不再使用泛义的Energy crops(能源作物)一词，而改用指专门培育的、经过全株青贮后应用于沼气发酵的Dedicated crops(专用能源作物)。
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The European Union′s marsh gas production stood at about 100×108m3 in 2007,50% of which was garbage landfill gas,30% was from agricultural wastes and energy crop,and 20% from sewer sewage treatment. Sweden was the first country to develop auto-use biogas.
欧盟2007年沼气总量达到约100×108m3,其中50%来自垃圾填埋气,30%来自农业废弃物和能源作物,20%来自下水道处理产生的污泥。
参考来源 - 欧盟国家新兴的生物天然气产业·2,447,543篇论文数据，部分数据来源于NoteExpress
欧洲的人口密度更高，所以能源作物的操作空间也较小。
Europe's higher human-population density leaves less space for energy crops.
它也可以被用来种植生物能源作物，它们将取代化石燃料。
It could alternatively be used to grow bioenergy crops, which would displace fossil fuels.
目前，灌溉水源大约有2%用于能源作物，亦即44公吨；
At the moment, about 2% of irrigated water is used to grow crops for energy, or 44km3.
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