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呈现大自然多样性的热带森林是许多动植物的最后栖息地，它们的存在对人类来说极其重要。面对热带森林被严重破坏的状况，人们很容易忘记，这是温带地区大部分森林已经遭遇过的：在已开发地区，大量原始森林消失了；在开发区，尤其在严重降雨区，一旦那些山坡的植被遭到破坏，就会引起诸如洪水和泥土坍塌等问题。多数植物种类分布广泛，能够承受局部砍伐并幸存下来，但有些种类分布范围很狭窄，过量砍伐会使之永远消失。 根据这段文字，可以看出作者的意图是（ ）。
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