基于VGPM模型的广西北部湾近岸海洋初级生产力估算-海洋预报

基于VGPM模型的广西北部湾近岸海洋初级生产力估算

单位：1. 广西大学资源环境与材料学院, 广西南宁 530004;
2. 广西壮族自治区海洋环境监测中心站, 广西北海 536000

分类号：P73;X145

出版年·卷·期（页码）：2021·38·第三期（76-85）

摘要：

以北部湾近岸海域为研究对象，基于海洋水质监测数据与海洋初级生产力实测数据，对VGPM模型各参数分别进行校正，评估校正后的模型估算精度。结果表明：通过参数校正能够有效减小初级生产力计算误差。根据校正模型计算可得，2018年北部湾近岸海洋初级生产力变化范围为101.27～2 161.75 mg C/（m²·d），北部湾近岸海域浮游植物在夏季和秋季对营养盐需求较为明显，在春季和冬季则无明显需求。

Based on Marine environment monitoring data and insite OPP data, the parameters of the VGPM model were calibrated. The OPP in the Beibu gulf of Guangxi， China， was estimated using the VGPM model after parameters calibrated, and the accuracy of corrected model was evaluated respectively. The result indicated that the estimation error of primary productivity can be effectively reduced by parameters correction. According to the calculation results of the corrected model, the range of OPP in the coastal waters of the Beibu gulf in 2018 was calculated to be 101.27～2 161.75 mg C/ （m² · d）. Phytoplankton in Beibu gulf shows an obvious demand for nutrient salt in summer and autumn, but not in spring and winter.

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