密西西比三角洲近来的土地流失速度大大超过史前的土地增长速度 (IMAGE)
Caption
Zhixiong Shen(左)和Elizabeth Chamberlain(右)正在路易斯安那州沿拉富齐长沼收集光测年样本,那里是密西西比河的一个被遗弃的水道。
Credit
Anjali Fernandes
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