众多科学家经过6年对亚马孙生态体系的运转情况及其作用的研究,得出了许多重要的结论。研究人员证实,对亚马孙森林的砍伐和放火烧荒,不仅加速了全球的温室效应,而且还直接影响了云层的形成,致使亚马孙地区和巴西中西部、东南部、南部等地区,乃至整个南美大陆的降雨量减少。科学家还发现,在烧荒地区,植物很难再生。巴西目前正面临着严峻的挑战:既要促进农牧业的发展,又要保护亚马孙地区的生态环境。对于巴西面临的严峻挑战,提出你的解决办法。
                                                                                                                                                                
                                                                                                                                                                
                                                                                                                                                                
                                                                                                                                                                
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