研究发现，全球的海洋颜色在过去20年来发生了显著改变，尤其是赤道附近的热带海洋变得更绿了。科学家指出，这是由人为导致的气候变化引起的。 Photo/Pexels The color of the ocean has changed significantly over the last 20 years and human-caused climate change is likely responsible, according to a new study. 英国国家海洋中心和美国麻省理工学院的科学家带领的研究团队称，全世界超56%的海水颜色发生了改变，这一变化无法用自然变异来解释。 Tropical oceans close to the equator in particular have become greener in the past two decades, reflecting changes in their ecosystems, according to the study published Wednesday in the journal Nature. 海洋颜色源于海洋上层的物质。举例而言，深蓝色的海洋上层存在的生物很少，而绿色的海洋意味着有基于浮游植物的生态系统的存在。浮游植物是含有叶绿素的类似植物的微生物。浮游植物构成了食物网的基础，食物网支持较大的生物，比如磷虾、鱼类、海鸟和海洋哺乳动物。 …
The Yellow River Delta National Nature Reserve in Shandong province has become an attractive home for migratory birds. The Yellow River Delta National Nature Reserve in Dongying, Shandong province, presents striking views as Suaeda salsa, a kind of sea grass that is spread across the shoals of the estuary, turn red, adding vibrant color this time of year. Suaeda salsa, …
