填空题____
填空题
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参考解析
解析：
本段第一句讲，生态学家认为土地转化是一个有四个阶段的过程，他称之为土地使用进程（land-use cascade），然后分别讲了这个进程中的每一个阶段，因此E项“土地转化进程”符合段意。
本段第一句讲，生态学家认为土地转化是一个有四个阶段的过程，他称之为土地使用进程（land-use cascade），然后分别讲了这个进程中的每一个阶段，因此E项“土地转化进程”符合段意。
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