甘肃历史上就有“天下富庶 ,无如陇右”之说。但是到了近代 ,人们四处开垦 ,大面积的草场变成了农田 ,连片的森林成了农家的柴火 ,生态环境日益恶化。为改变这一状况 ,从今年起 ,甘肃省将用 11年时间 ,投入 4 89亿元 ,完成退耕还林还草 30 0 0万亩。到 2 0 10年 ,使全省荒山造? Gansu history, there is “rich world, no such as Longyou” said. However, in modern times, people started to reclaim their land. Large areas of pastures became farmland. Contiguous forests became the firewood of farmhouses and their ecological environment deteriorated. In order to change this situation, starting from this year, Gansu will spend 49.9 billion yuan in eleven years to complete 30 million mu of returning farmland to forests and pastures. To 2010, so that the province waste hills made?