In fruit mature period, muskmelon had higher biomass in organic production system, but there was no significant difference on market yield in both systems.
果实成熟期，甜瓜在有机生产体系中生物量较高，但两种体系的市场产量差异不显著。
That matters because theory suggests that the maximum sustainable yield that can be cropped from a fishery comes when the biomass of a target species is about 50% of its original levels.
这一点很重要，因为理论表明，当目标鱼种的生物量为其原始水平的50%左右时，渔场才能达到可收获的最大可持续产量。
The biomass of Keteleeria has been investigated and analyzed.
对油杉种群的生物量进行了测定和研究。
Top-20 users of traditional biomass fuels.
全球排名前20位传统生物能燃料使用国。
But it could also be used with biomass to make biofuel.
但也可以用生物量来制造生物燃料。
Today, that biomass is fed to cattle, among other things.
今天，生物质原料同其他食物一起用来养牛。
But the carbon balance for biomass crops depends on the whole lifecycle.
但是，生物质农作物的碳平衡必需依赖整个生命循环。
Biomass and crops for animals are as damaging as [burning] fossil fuels.
生物质量和用于饲养动物的农作物同化石燃料一样有破坏力。
Gibbons anticipates that biomass ethanol will be on the market by 2012.
吉本斯预期这种生物乙醇有望在2012年在市面上得以出现。
Ants have been converting plant biomass into energy for millions of years.
蚂蚁已经有着数百年的将植物转化为能量的历史了。
It is this that must change if the full potential of biomass crops is to be realised.
如果能够真正实现充分发挥生物质农作物潜能的目标就必需改变这种状况。
They have takenover and now represent 90 percent of the biomass in the Illinois River.
它们已经成了伊利诺斯河的主人，如今占那里90%的生物量。
Both ethanol and isobutanol are made from sugars produced by breaking down biomass.
乙醇和异丁醇都可以由糖的生物分解生产。
Within a few decades of land being abandoned, half of the original biomass has returned.
在土地被荒弃的几十年内，原始生物量恢复一半。
About 56 percent of total energy use comes from traditional biomass-mostly firewood.
根据该手册，全部能源利用的大约56%来自传统的生物原料—大多数是木柴。
Non-renewable harvesting of biomass contributes to deforestation and thus climate change.
采获不可再生的生物质可使森林遭受破坏，因而发生气候变化。
Meat and dairy animals now account for about 20 percent of all terrestrial animal biomass.
肉畜和乳畜目前占陆地动物生物总量的约20%。
Same for wind, hydro and biomass... the trend is that they will continue to consume more energy.
还有风力、水力发电和生物燃料……目前的趋势是他们将消耗更多的能量。
Growing biomass, even on marginal agricultural land, does require water, as does making electricity.
生长的生物物质，甚至在贫瘠的土地上，也需要水，发电也是如此。
Biomass projects, involving growing algae on nearby lakes, are another option under consideration.
纳入考虑的还是生物计划，包括在近湖地区种植海藻。
Researchers and several companies are developing methods for converting the plant biomass into ethanol.
许多研究者和公司正在试图研究出把生物量转化为乙醇的方法。
Having more species may increase the chances of getting one super-producing plant that plumps up biomass.
更多物种可能增加了产生一个超级生产型植物的机会，从而增加生物质。
Now, ethanol is made with corn cobs, which are just a small amount of the corn plant’s total biomass.
如今，乙醇是由仅占玉米植株总量中很小数目的玉米棒子加工而成。
Black carbon is produced from the incomplete combustion of wood, biomass such as crop residues and fossil fuels.
炭黑是由木头、诸如作物残余等生物质以及化石燃料不充分燃烧产生的。
However, even when just considering the accumulation of biomass carbon, an agroforestry system is very efficient.
不过，单从生物量碳积累来看，农林复合经营系统已经非常有效了。
However, even when just considering the accumulation of biomass carbon, an agroforestry system is very efficient.
不过，单从生物量碳积累来看，农林复合经营系统已经非常有效了。
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