摘要
Based on experiment data of the Sino-German comprehensive investigations in the Bohai Sea in 1998 and 1999, a simple coupled pelagic-benthic ecosystem multi-box model is used to simulate the ecosystem seasonal variation. The pelagic sub-model consists of seven state variables： phytoplankton, zooplankton, TIN, TIP, DOC, POC and dissolved oxygen （DO）. The benthic sub-model includes macro-benthos, meiobenthos, bacteria, detritus, TIN and TIP in the sediment. Besides the effects of solar radiation, water temperature and the nutrient from sea bottom exudation, land-based inputs are considered. The impact of the advection terms between the boxes is also considered. Meanwhile, the effects of the micro- bial-loop are introduced with a simple parameterization. The seasonal variations and the horizontal distributions of the ecosystem state variables of the Bohai Sea are simulated. Compared with the observations, the results of the multi-box model are reasonable. The modeled results show that about 13% of the photosynthesis primary production goes to the main food loop, 20% transfers to the benthic domain, 44% is consumed by the respiration of phytoplankton, and the rest goes to DOC. Model results also show the importance of the microbial food loop in the ecosystem of the Bohai Sea, and its contribution to the annual zooplankton production can be 60%-64%.
在 1998 和 1999 在 Bohai 海基于中国德语的全面调查的实验数据，一个简单联合 pelagic-benthic 生态系统多盒子模型被用来模仿生态系统季节变异。远洋的亚模型由七个州的变量组成：浮游植物，浮游动物，锡，尖端，文档，停靠港和溶解的氧() 。benthicsub 模型在沉积包括宏底生生物， meiobenthos，细菌，岩屑，听和尖端。除从海底部渗出的太阳辐射，水温和营养素的效果以外，以地为基地的输入被考虑。在盒子之间的移流术语的影响也被考虑。同时， micro-bial-loop 的效果与 simpleparameterization 被介绍。季节变异和生态系统的水平分布声明 Bohai 海的变量被模仿。与观察相比， themulti 盒子模型的结果是合理的。建模的结果证明大约 13% 光合作用初级生产量去主要食物环， 20% 转到 benthic 领域， 44% 被浮游植物的呼吸消费，并且剩余的去文档。模型结果也在 Bohai 海，和它对年度浮游动物生产的贡献的生态系统显示出微生物引起的食物环的重要性能是 60%-64% 。
基金
supported by the National Natural Science Foundation of China(Nos.G49790010 and 40476045).
