Remineralization Ratios in the Subtropical North Pacific Gyre |
| |
| Authors: | Yuan-Hui Li David M Karl Christopher D Winn Fred T Mackenzie Kathleen Gans |
| |
| Institution: | (1) Department of Oceanography, University of Hawaii, Honolulu, Hawaii, 96822 |
| |
| Abstract: | Based on a new mixing model of two end-members, the water column remineralization ratios of P/N/Corg - O2 = 1/13 ± 1/135 ± 18/170 ± 9 are obtained for the Hawaii Ocean Time-series (HOT) data set at station ALOHA. The traditional Redfield ratios of P/N/Corg/–O2 = 1/16/106/138 have standard deviations of more than 50%, when they are based on the average composition of phytoplankton. Apparently, the remineralization processes in the water column have smoothed out the observed large variability of plankton compositions. A new molar formula for the remineralized plankton may be written as 135H280O105N13P or C25(CH2O)101(CH4)9(NH3)13(H3PO4). Oxidation of this formula results inC25(CH2O)101(CH4)9(NH3)13(H3PO4) + 170O2  135CO2 + 132H2O + 13NO3
- + H2PO4
- + 14H+.For comparison, remineralization using Redfield's formula gives:(CH2O)106(NH3)16(H3PO4) + 138O2 106CO2 + 122H2O + 16NO3
-+ H2PO4
- + 17H+ |
| |
| Keywords: | Mixing model preformed nutrients Redfield ratios Remineralization ratios |
| 本文献已被 SpringerLink 等数据库收录！ |
