气候干燥，河床断流，沙土袭卷，加上战争后遍地疮痍，脆弱的生态环境至此已回天乏术，这会不会就是大难临头的古格人一夜之间走失的开始?当我们磨磨蹭蹭下山时，路边坡地上一座残屋墙根裂开道口子，爆出一堆堆羊粪样的板结黑物，趋前细审，竟是几近炭化的青稞粒。
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