水土流失的主要原因是毁林开垦,陡坡种植.
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Severe deforestation has accelerated soil erosion and reduced productivity.
严重的乱砍滥伐加快了水土流失,降低了生产力.
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A surging rate of deforestation from 1993 to 1998 matched Brazil's period of rapid economic growth.
而1993至1998年间,森林砍伐作业再度扬升,巴西的经济也呈现大幅成长.
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Other pathways of nutrient loss include fire, the harvesting of crops and deforestation.
营养物损失的其他途径包括火灾 、 庄稼的收获和森林砍伐.
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NASA plans to launch a satellite which could help monitor deforestation and carbon emissions.
美国宇航局计划发射一颗可帮助监测森林砍伐和碳排放的卫星.
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Haiti is an island nation a high population a history of deforestation.
海地是个岛国,人口甚多,滥伐森林的情况由来已久.
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他说非洲的森林砍伐现象非常严重：每砍伐10棵树，仅种植1棵。
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Deforestation result in the increase in global temperature and unpleasant change of climate.
森林过量砍伐导致全球气温的升高和气候的异常变化.
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The irony of tropical deforestation is that the anticipated economic benefits are usually illusory.
热带雨林遭受滥伐的讽刺意味在于,预期中的经济好处通常是虚假的.
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In Brazil, for example, the government has set deforestation reduction targets.
例如, 在巴西, 政府确定了森林砍伐的减排目标.
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It is widely acknowledged that extensive deforestation contributed to heavy summer flooding.
人们普遍认为过度砍伐造成了夏季特大洪水.
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The quickest solution to deforestation would be to simply stop cutting down trees.
停止森林开伐是森林资源退化的最快解决方案.
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One percent of Brazil's total forest cover is being lost every year to deforestation.
由于滥伐，巴西的森林总覆盖面积正在每年减少百分之一。
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有人说,自此人类及其生存的地球便一起遭劫不复.
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And it is still unclear who would get the money for reducing deforestation.
目前还不清楚谁将会得到在减少毁林上款项.
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Experts attributed the frequent sandstorms this winter to erosion and deforestation.
专家把今冬频繁的沙尘暴归因于水土流失和过度伐木.
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But they not deal with the commercial drivers of deforestation, and are prone to leakage.
不过,它们并不涉及毁林活动的商业驱动力, 而且也易出现漏损.
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