全球气候碳循环图

一幅全球碳循环扁平编辑信息图，背景上半天蓝（大气），下半土绿（陆地与海洋）。关键储库以标注框表示：「Atmosphere 860 GtC」（白框，顶部中央）、「全球气候碳循环图」（绿框，左中）、「Terrestrial biosphere 550 GtC」（蓝框，右中）、「Ocean surface 900 GtC」（深灰框，底部中央）。连接箭头：绿色曲线（光合/呼吸）、蓝色波纹（海气交换）、红色火焰箭头（化石燃料燃烧，"9 GtC/yr"）、棕色虚线（土壤分解）。箭头宽度按通量比例。深灰色工厂剪影与深绿色森林剪影作为人为与自然排放图标。无衬线 10 pt 标签，柔和宝石色调。

A flat editorial infographic of the global carbon cycle set against a half-and-half background: upper half sky-blue (atmosphere) and lower half earthy-green (land and ocean). Key reservoirs are labeled boxes with GtC (gigatons of carbon) values: "Atmosphere 860 GtC" (white box, center-top), "Terrestrial biosphere 550 GtC" (green box, mid-left), "Ocean surface 900 GtC" (blue box, mid-right), "Fossil reserves 3700 GtC" (dark-grey box, bottom-center). Arrows connect reservoirs: green curved arrows for photosynthesis and respiration, blue wave arrows for ocean-atmosphere exchange, red flame arrow for fossil fuel combustion labeled "9 GtC/yr", brown dotted arrow for soil decomposition. A small factory silhouette (dark-grey) and a forest silhouette (dark-green) anchor the human and natural source icons. Arrow widths proportional to flux magnitude. Clean sans-serif labels, 10 pt. Muted jewel-tone palette.