在过去二十年中,博海海的营养变化
Wen Liang1, Yan Wang2, Jinglong Mu1
1Frontiers Science Center for Deep Ocean Multispheres and Earth System, and Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China.
The Science of the total environment
|September 3, 2023
概括
波海的营养水平最初上升,但随后由于投入减少而下降. 溶解无机 (DIN) 和DIN/DIP的比率下降,显示了环境改善措施的逐步成功.
科学领域:
- 海洋化学 海洋化学
- 环境科学环境科学
- 欧洲化研究的研究.
背景情况:
- 欧化在博海海域是一个日益严重的问题.
- 已经实施了营养减少措施,但它们对营养水平和结构的有效性尚不清楚.
研究的目的:
- 重新审查2000年至2019年波海的营养趋势.
- 评估营养减少措施对水质的影响.
主要方法:
- 对2000年至2019年的观测数据进行分析.
- 检查溶解无机 (DIN) 和溶解无机 (DIP) 的度和比率.
- 识别导致营养物质变化的因素.
主要成果:
- 从2000年到2013年,DIN度和DIN/DIP比率增加,从2013年到2019年,它们下降.
- DIP度显示反应较弱,趋势与营养投入无关.
- DIN的减少主要归因于大气沉积 (66%),废水 (21%) 和河流输入 (13%).
- 将营养限制从转变为,或在更深的水域 (>20m) 没有限制.
结论:
- 营养减少措施已经在改善博海海环境方面取得了逐步的成功.
- 近岸DIN度对人类活动的反应更快.
- 环境指标显示,对DIN和DIN/DIP比率下降的反应是积极的,这表明最近的复苏.
更多相关视频
08:15Author Spotlight: Unveiling Plankton Response to Climate Change Through Time-Series Data and Artistic Expression
Published on: July 28, 2023
1.3K
05:04Author Spotlight: Understanding Riverine Nitrogen Impacts and Primary Productivity for Effective Nutrient Management
Published on: July 14, 2023
428
相关概念视频
Primary Production
23.7K
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.
23.7K
Responses to Salt Stress
13.2K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.2K
Osmoregulation in Fishes
49.9K
When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
49.9K
Speciation Rates
21.3K
Overview
21.3K
