海洋中和的测量和分析:实践,边界和见解
Hasitha Siriwardana1, R S M Samarasekara1, Damsara Anthony1,2
1Faculty of Engineering, University of Sri Jayewardenepura, 41, Lumbini Avenue, Ratmalana 10390, Sri Lanka.
Heliyon
|April 1, 2024
概括
海洋和研究已经显著发展,从分类学和生物地球化学转向稳定的同位素跟踪. 分析技术也取得了进步,整合了跨学科的方法.
科学领域:
- 海洋化学和生物地球化学
- 环境科学环境科学
- 海洋学 海洋学 海洋学
背景情况:
- 海洋和的度是研究的关键领域.
- 相关领域的快速发展使得新的研究问题成为可能.
- 了解研究趋势对于未来的科学进步至关重要.
研究的目的:
- 分析海洋和研究中的时间趋势和研究热点.
- 审查用于海水营养成分的分析技术.
- 确定研究重点和跨学科整合的演变.
主要方法:
- 对Scopus数据库的关键词分析.
- 开发不同时期的作者关键词网络 (在1990年之前,1990-2000年,2001-2011年,2012-2022年).
- 批判性审查50多篇关于分析技术的期刊文章.
主要成果:
- 研究重点从分类学和生物地球化学转移到稳定的同位素跟踪和.
- 越来越多的跨学科研究和宏观经济因素的整合.
- 确定了传统的 (光谱测量,彩色测量) 和新兴的 (遥感,微流体传感器) 分析技术.
结论:
- 海洋营养素研究显示了焦点和方法的明确演变.
- 稳定同位素分析和先进技术越来越重要.
- 跨学科的合作是海洋学研究中日益增长的趋势.
相关概念视频
The Phosphorus Cycle
36.8K
Unlike carbon, water, and nitrogen, phosphorus is not present in the atmosphere as a gas. Instead, most phosphorus in the ecosystem exists as compounds, such as phosphate ions (PO43-), found in soil, water, sediment and rocks. Phosphorus is often a limiting nutrient (i.e., in short supply). Consequently, phosphorus is added to most agricultural fertilizers, which can cause environmental problems related to runoff in aquatic ecosystems.
36.8K
Primary Production
23.6K
The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
23.6K
Key Elements for Plant Nutrition
18.7K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.7K


