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| 1 | Model assessment of nutrient removal via planting Sesuvium portulacastrum in floating beds in eutrophic marine waters:the case of aquaculture areas of Dongshan Bay显示文摘Many coastal seas are severely eutrophic and required to reduce nutrient concentrations to meet a certain water quality standard.We proposed a method for nutrient removal by planting Sesuvium portulacastrum at the water surface using the floating beds in the aquaculture area of the Dongshan Bay as an example,which is an important net-cage culture base in China and where dissolved inorganic nitrogen(DIN)and dissolved inorganic phosphate(DIP)reach 0.75 mg/L and 0.097 mg/L,respectively far exceeding China’s Grade IV water quality standards.Numerical simulations were taken using the ecological model,field observations and field plantation experimental results to assess the environmental restoration effects of planting S.portulacastrum at some certain spatial scales.Our field experiments suggested that the herbs can absorb 377 g/m^2 nitrogen and 22.9 g/m^2 phosphorus in eight months with an inserting density of^60 shoot/m^2.The numerical experiments show that the greater the plantation area is,the more nutrient removal.Plantation in^12%of the study area could lower nutrients to the required Grade II standards,i.e.,0.2 mg/L | Xuehai Liu Xinming Pu Donglian Luo Jing Lu Zili Liu | 2019 | Acta Oceanologica Sinica2019，38，12： | 3 |
| 2 | 近海系统化生态-沉积-环境动力学数值模式——理论基础显示文摘基于中国近海生态环境、泥沙沉积、生态养殖等方面的研究和评价需要,本研究拟发展一套海洋生态-沉积-环境动力学耦合模式,包括生态、沉积物输运、精细化水质、养殖、物质扩散及粒子追踪和评估评价六个模块,其通过相互之间耦合,协同构成一个功能全面的系统模式。模式特别考虑沉积和养殖对水动力的作用、沉积物的光效应、有机颗粒物在海底的沉积和再悬浮等问题或过程。作为系统模式研究的先行工作,本文阐述了模式的理论基础,包括构建模型系统的概念框架,模式中典型的物理、生物、化学、沉积过程的理论介绍及其主要参数化表达方式,并给出了已有模块包括耦合模块的模拟结果。 | 芦静 刘学海 滕涌 蒲新明 崔迎春 辛明 | 2015 | 海洋科学进展2015，33，4： | 1 |
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