英语翻译Earth observation data have been used as the basis of a recentreview of the most rapid land cover changes on a global scale in thepast 20 years (Lepers et al.,2005).The analysis suggested that the fastest changes are occurring in Asia,esp

英语翻译Earth observation data have been used as the basis of a recentreview of the most rapid land cover changes on a global scale in thepast 20 years (Lepers et al.,2005).The analysis suggested that the fastest changes are occurring in Asia,esp
英语翻译
Earth observation data have been used as the basis of a recentreview of the most rapid land cover changes on a global scale in thepast 20 years (Lepers et al.,2005).The analysis suggested that the fastest changes are occurring in Asia,especially in dryland areas.High rates of tropical deforestation have taken place in the Amazon Basin and South East Asia,where it is associated with the expansion of croplands.High rates of urban expansion are also seen in the tropics.Deforestation as a result of logging activities is apparent in Siberia.In the south east of the United States and eastern China there appears to be a rapid decline in the area of arable land.Anumberof studies have gone on to model future trends.Tilman et al.(2001) used a range of univariate and multiple-regression models to predict likely changes in crop and pasture areas,and in pesticide and fertiliser use.These models were based on trends for population andGDPextrapolated to 2020 and 2050.They estimated that the global agricultural area would increase by about 18 per cent between 2000 and 2050,but noted that this was only a net figure.

英语翻译Earth observation data have been used as the basis of a recentreview of the most rapid land cover changes on a global scale in thepast 20 years (Lepers et al.,2005).The analysis suggested that the fastest changes are occurring in Asia,esp
地球观测数据作为基础的一个recentreview最快速的土地覆盖变化对全球规模在过去20年(麻风病人et al.,2005).分析表明最快的变化发生在亚洲,特别是在干旱地区的地区.高水平的热带森林砍伐已经发生在亚马逊河流域和东南亚,它伴随着扩大农田.高水平的城市扩张也见过在热带地区.砍伐森林导致日志

楼下的是对的。。。那个镜月年华

地球观测数据作为基础的一个recentreview最快速的土地覆盖变化对全球规模在过去20年(麻风病人et
al。,2005)。分析表明最快的变化发生在亚洲,特别是在干旱地区的地区。高水平的热带森林砍伐已经发生在亚马逊河流域和东南亚,它伴随着扩大农田。高水平的城市扩张也见过在热带地区。砍伐森林导致日志活动是明显的在西伯利亚。在美国的东南部、东部和中国似乎有一个快速下降的区域的耕地。Anu...

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地球观测数据作为基础的一个recentreview最快速的土地覆盖变化对全球规模在过去20年(麻风病人et
al。,2005)。分析表明最快的变化发生在亚洲,特别是在干旱地区的地区。高水平的热带森林砍伐已经发生在亚马逊河流域和东南亚,它伴随着扩大农田。高水平的城市扩张也见过在热带地区。砍伐森林导致日志活动是明显的在西伯利亚。在美国的东南部、东部和中国似乎有一个快速下降的区域的耕地。Anumberof研究了模型未来的发展趋势。提尔曼et
al。(2001)利用一系列的单变量和多个回归模型预测可能改变作物和牧区,在农药和化肥使用。这些模型都是基于人口andGDPextrapolated趋势,2020年和2050年。他们估计,全球农业面积将增加约18%在2000年和2050年之间,但指出,这只是一个网络图。

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