颗石藻与环境

Coccolith and environment

全球海洋中颗石藻 (coccolith)的年产量估计为 5 36 80 0× 10 8～ 5 36 80 0 0× 10 8t,为食植性动物提供食物5 31432× 10 8～ 5 31432 0× 10 8t,产生碳酸盐约 12 8× 10 8t,固定碳 2 0 0 0× 10 8t,从大气圈和水圈中吸收CO2 7333× 10 8t(为世界CO2 年排放量的 32倍 )。光合作用放出氧 6 943× 10 8t。在海洋生物中居重要地位 ,对维护地球表面生态平衡起重要作用。

The annual output of coccolith in the oceans is 536 800×10\+\{8\}～5 368 000×10\+\{8\}tons, which can provide 531 432×10\+\{8\}～5 314 320×10\+\{8\}tons of food for planktons, produce 12.8×10\+\{8\}tons of carbonate, fix 2 000×10\+\{8\}tons of carbon, absorb 7 333×10\+\{8\}tons of CO\-\{2\}from the atmosphere and hydrosphere (equals 32 times the total CO\-\{2\}emitted in the world in a year), emite 6 943×10\+\{8\}tons of O\-\{2\}by photosynthesis. It showed great significance in maintaining ecological balance of the earth surface.