在过去的30年中，全球受干旱影响的土地数量增加了一倍。
Around the world, the amount of land affected by drought has doubled in the past thirty years.
这又进而影响种植大豆的土地数量，对美国农民来说，种植玉米和大豆可以互换。
That in turn influences how much land is planted to soyabeans, which for American farmers are interchangeable with maize.
外出人员会扩大那些留守人员拥有的土地数量，以使土地更有效率的使用。
The exodus would help those left behind to expand their land holdings and use them more efficiently.
新西兰作家罗伯特和布伦达·威尔通过研究种植宠物(涉及范围从鹦鹉到猫和狗)食物所需的土地数量，得出这项研究结果。
New Zealand-based authors Robert and Brenda Vale base their findings on the amount of land needed to grow food for pets ranging from budgerigars to cats and dogs.
尽管如此，有一种提法，让白人农场主按照实际价值将其40%的土地转让给黑人利益相关者，同时尽可能限制个体农场主拥有的土地数量上限。
However, there is talk of making white farmers transfer 40% of their farms by value to black shareholders, and possibly capping the amount of land an individual farmer can own.
{3}该快乐指数综合考虑了人们的生活满意度、平均寿命以及对环境的影响(主要通过衡量维持居民生存以及提供足够能源消耗所需的土地数量来了解)等多项指标。
The index combines life satisfaction, life expectancy and environmental footprint — the amount of land required to sustain the population and absorb its energy consumption.
{3}该快乐指数综合考虑了人们的生活满意度、平均寿命以及对环境的影响（主要通过衡量维持居民生存以及提供足够能源消耗所需的土地数量来了解）等多项指标。
Thee index combines life satisfaction, life expectancy and environmental footprint — the amount of land required to sustain the population and absorb its energy consumption.
任何能提高农业效率的东西——能提高我们每英亩土地生产的农作物数量的东西——都是非常有用的。
Anything that can increase farming efficiency—the amount of crops we can produce per acre of land—will be extremely useful.
如何在不增加动物数量、不影响脆弱的土地和我们的资源基础的情况下确保食物供应，这是一项挑战。
The challenge is how to ensure food without increasing animal numbers and having an impact on fragile lands and our resource bases.
在其他条件相同的情况下，这意味着他们必须开拓出比农学家更大的土地面积，以获得相同数量的食物、衣服和其他必需品。
All else being equal, this means they must exploit larger areas of land than do agriculturalists to secure the same amount of food, clothing, and other necessities.
通过土地利用活动对珊瑚的破坏会导致以棘星幼虫为食的捕食者数量减少。
The destruction of coral through land use activities would cause a decrease in the number of predators that feed on Acanthaster larvae.
土地开始变得干燥，这反过来又导致了植被数量的大量减少，因为植被在干燥的土壤里无法生长得很好，对吧？
The land started to get drier, which in turn caused a huge decrease in the amount of vegetation because vegetation doesn't grow as well in dry soil, right?
土地不断受到人口数量增加所带来的压力，这些增加的人口需要土地提供食物和养料。
Expanding populations are subjecting the land to increasing pressures to provide them with food and fuel.
此即是未来几十年面临的真正挑战：如何大规模地增加农产量却不增加太多已用土地的数量。
Therein lies the real challenge in the coming decades: how to expand agricultural output massively without increasing by much the amount of land used.
它没有明确指出出口数量或者说来自于哪些出租的土地。
It doesn't specify export amounts or say where the leased land would come from.
希腊没有精确的房屋所有者数量，因为该国至今缺乏完善的土地登记制度。
There is no precise number for Greek homeowners since the country still lacks a comprehensive land register.
上升的海平面和有关的海水侵入很可能会进一步减少可耕种土地的数量。
Rising sea levels and the associated intrusion of salt water are likely to reduce the amount of arable land even further.
这处河口为周边地区带来了肥沃而富饶的土地，同时也为多种濒危物种如数量稀少的拉普拉塔海豚提供了自然栖息地。
The estuary keeps the surrounding land rich and fertile and provides a natural habitat for a number of threatened species, including the rare la Plata dolphin.
农业具有竞争力后会推高土地价格，从而增加对过度扩张的银行抵押品的数量。
And if more competitive farming pushed up land prices, it would boost the collateral held by overextended Banks.
然而，将土地分成小块却带来了新的挑战。当从贫困邦涌入西孟加拉的移民持续增加时，包括从孟加拉国边境线过来的贫民，这都使得当地人口数量持续上升。
Yet distributing land into smaller parcels has brought new challenges, as families have kept growing while immigrants have flowed into West Bengal from poorer states, as well as bordering Bangladesh.
可能的结果就是土地和植物的数量都会受限，而我们能从这有限的土地上挤出多少效益呢？
This is going to be a constrained area of land and amount of biomass, so how much transportation and greenhouse gas offsets can we milk out of this constrained land?
在科罗拉多州，允许在联邦土地上进行钻探的许可证数量从1996年的79张增长到2006年的650张。
The number of drilling permits granted on federal land in Colorado rose from 79 in 1996 to 650 in 2006.
在戈尔巴乔夫时期，务农人口数量降至前一时期的四分之一。只有老农们继续劳作，在国有土地上敷衍行事，维护着他们的自留地。
By Gorbachev's time, the farm population had shrunk to a quarter of its former size; only older workers remained, working perfunctorily on state land or tending their private plots.
我们知道是什么原因导致了野生老虎数量的下降，这些原因就是：非法偷猎；非法野生动植物贸易；变更用途、侵占和土地退化导致的栖息地丧失。
We know what is causing the decline in Numbers of wild tigers: illegal poaching; illegal wildlife trade; loss of habitat through conversion, encroachment, and land degradation.
当前生活在这个保护区的野牛共有200头，如果部落理事会能够购买或者租赁额外的土地，这里的野牛数量还会增加。
The reserve sustains 200 buffalo and could supportmore if the tribal council can buy or lease additional acreage.
城市土地资源的数量和质量及其分配直接影响城市的经济、社会、环境以及综合效益。
The quantity quality and distribution of a city's land source affect the economy society circumstance and synthetical benefit of the city.
为此他们划定了几块大块土地(大约20米x5米)，然后数在其范围内植物的物种数量和实时的植物总数。
To do this they designated large plots (some 20 metres by five metres) in which they counted how many plants were present as well as the number of species represented.
为此他们划定了几块大块土地(大约20米x5米)，然后数在其范围内植物的物种数量和实时的植物总数。
To do this they designated large plots (some 20 metres by five metres) in which they counted how many plants were present as well as the number of species represented.
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