地理漫步·世界地理英语30篇（7）
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Coastal Landscapes Respond to Sea-Level Change
海岸地貌响应海平面变化
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Rising seas erode cliffs faster and narrow sandy beaches.海平面上升加速侵蚀悬崖，使沙滩变窄。
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Saltwater pushes inland, changing wetland plant communities.海水倒灌 inland，改变湿地植物群落。
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Barrier islands shift position or break apart during storms.风暴期间，障壁岛位置移动或解体。
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Delta lands sink when river sediment supply drops behind dams.河流泥沙被水坝拦截后，三角洲土地沉降。
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Coral reefs grow upward only if sea rise stays slow enough.珊瑚礁仅在海平面上升足够缓慢时才能向上生长。
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Human seawalls disrupt natural sand flow along shorelines.人工海堤干扰海岸线自然输沙过程。
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Coastal maps redraw every decade to show new shoreline positions.海岸地图每十年重绘一次，以显示新岸线位置。
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Geographers compare old charts with modern lidar to measure change.地理学家通过对比历史海图与现代激光雷达数据来测量变化。