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过去2000年黄河中下游气候与土地覆被变化的若干特征
郑景云1,4, 文彦君2,3, 方修琦3
Changes of climate and land cover in the middle and lower reaches of the Yellow River over the past 2000 years
ZHENG Jingyun1,4, WEN Yanjun2,3, FANG Xiuqi3

图1. 黄河流域的地理范围及已查明的下游古河道示意图[11]

Figure 1. Scope of the Yellow River Basin and paleo-channels of the Yellow River in the lower reaches [11].