案例简介：照片由Sofia Jaramillo @ sofia_jaramillo5 | 怀俄明州Tetons的温度下降和金色的叶子意味着秋天就在这里。随着夜晚变得越来越长，越来越冷，叶子中的生物过程也发生了变化。当植物在春天生长时，由于不断产生的叶绿素，叶子看起来是绿色的。随着夏末日光的减少，叶绿素的产生减慢并最终停止，红色和橙色的色素-类胡萝卜素和花青素-被揭示出来。有关Tetons和世界各地的更多图像，请关注 @ sofia_jaramillo5。

案例简介：Photo by Sofia Jaramillo @sofia_jaramillo5 | Dropping temperatures and golden leaves in Wyoming's Tetons mean fall is here. As the nights get longer and cooler, the biological processes in leaves change as well. When plants grow in the spring, leaves appear green because of the chlorophyll that’s continually produced. With decreasing daylight at the end of summer, chlorophyll production slows and eventually stops, and red and orange pigments—carotenoids and anthocyanin—are revealed. For more images from the Tetons and around the world, follow @sofia_jaramillo5.

国家地理 - Photo by Sofia Jaramillo @sofia_jaramillo5 | Dropping temperatures and golden leaves in Wyoming's Tetons mean fall is her

案例简介：照片由Sofia Jaramillo @ sofia_jaramillo5 | 怀俄明州Tetons的温度下降和金色的叶子意味着秋天就在这里。随着夜晚变得越来越长，越来越冷，叶子中的生物过程也发生了变化。当植物在春天生长时，由于不断产生的叶绿素，叶子看起来是绿色的。随着夏末日光的减少，叶绿素的产生减慢并最终停止，红色和橙色的色素-类胡萝卜素和花青素-被揭示出来。有关Tetons和世界各地的更多图像，请关注 @ sofia_jaramillo5。

国家地理 - Photo by Sofia Jaramillo @sofia_jaramillo5 | Dropping temperatures and golden leaves in Wyoming's Tetons mean fall is her

案例简介：Photo by Sofia Jaramillo @sofia_jaramillo5 | Dropping temperatures and golden leaves in Wyoming's Tetons mean fall is here. As the nights get longer and cooler, the biological processes in leaves change as well. When plants grow in the spring, leaves appear green because of the chlorophyll that’s continually produced. With decreasing daylight at the end of summer, chlorophyll production slows and eventually stops, and red and orange pigments—carotenoids and anthocyanin—are revealed. For more images from the Tetons and around the world, follow @sofia_jaramillo5.

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国家地理 - Photo by Sofia Jaramillo @sofia_jaramillo5 | Dropping temperatures and golden leaves in Wyoming's Tetons mean fall is her

暂无简介