绿色发展理念的四重维度

绿色发展是针对传统发展取向和经济社会发展所面临的资源瓶颈与环境容量而提出的新理念,旨在于实现人与自然的和谐共生,形成人与自然和谐发展的现代化建设新格局。绿色发展理念内含着四个方面的重要内容:加快转变经济发展方式;推动绿色技术创新或技术创新的生态化;创建绿色经济社会发展制度;倡导低碳生活方式和消费方式。厘清绿色发展理念的四重维度,有助于我们明晰“绿色化”的实践理路。

Variations in Dissolved Oxygen Induced by a Tropical Storm Within an Anticyclone in the Northern South China Sea

Tropical storms(TSs)can induce sea surface cooling,freshening,and phytoplankton blooms.The dissolved oxygen(DO)concentration response to TSs within an anticyclone is still unclear due to the rarity of in situ observations.In this study,we investi-gate the variations in DO concentration attributed to TS‘Haitang’within an anticyclonic eddy in the northern South China Sea based on Chinese underwater glider data.DO concentrations have a higher value at the edge of eddy than at the core.Influenced by TS,DO concentrations decrease remarkably in the subsurface layer in all three regions(inside,edge,and outside of the anticyclonic eddy).The mean DO concentrations decrease more at the edge of the anticyclone than those inside the anticyclone.The recovery time of DO concentration after TS is around one week at the edge of the anticyclone and is>10 days within the eddy.Our observations show that the DO concentrations decrease above the subsurface chlorophyll a maxima layer.Quantitative analysis shows that variations in DO concentration are dominated by horizontal advection and vertical advection terms in the subsurface layer.

海洋环境安全保障技术发展现状和展望

海洋观测技术的不断进步为海洋环境安全提供了越来越多的技术手段。海洋环境安全保障技术在“一带一路”倡议中有着不可或缺的作用,不仅对海洋强国建设、国家海上安全维护有着极为关键的作用,还将对推动构建“海洋命运共同体”,落实海洋可持续发展目标发挥积极的作用。文章结合实际所面临的问题介绍了海洋环境安全保障技术的体系构成,即海洋环境参数感知技术、数据集成与分析技术、应用保障技术。继而对海洋环境安全保障技术发展现状进行了阐述,并指出今后重点发展以下“四个能力”:全时全域、多维一体的监测探测能力,高效安全、稳定可靠的信息传输能力,实时精准、客观定量的预报预测能力,精准运筹、高效便捷的辅助决策与支撑能力。