本地纯净下载
纯净官方版AG九游会“这说明冰川调蓄能力在降低,容易导致生态环境出现失衡。”何晓波表示,长江源区冰川消融加速、厚度减薄,一定时间、程度上有利于下游地区生态环境变好,但也使青藏高原地区冰湖溃堤、冰崩等灾害频率增加。。
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