石花菜是一种广泛分布于我国北方沿海的经济海藻。它既生长于营养盐丰富的海区,也能呈大群落地分布于营养盐含量少的海区。因而人们认为石花菜是一种耐低氮的海藻。经过1981—1983年在黄渤海沿岸十几个点试养结果表明,秋季海洋中营养盐含量较高,石花菜生长良好,而同一海区的春季,营养盐含量较少,石花菜的颜色变淡,呈淡黄或黄绿色,藻体纤细,重量较 Seaweed is a widely distributed economic seaweed along the northern coast of China. It grows in nutrient-rich sea area, but also in large communities distributed in areas with low nutrient content of the sea. Therefore, people think that seaweed is a low nitrogen-resistant seaweed. After 1981 - 1983 in the coast of the Yellow Sea and the Bohai Sea more than a dozen points trial results showed that the high nutrient content in autumn oceans, seaweed grow well, and the same sea area in spring, less nutrient content, color of stonefresh fades , Pale yellow or yellow-green, algae slender, weight more