土壤积延迟鱼类从大气沉积中恢复 减少
Connor I Olson1,2, Stephen F Jane3,4,5, Benjamin M Geyman2
1Department of Civil and Environmental Engineering, Syracuse University, Syracuse, New York 13244, United States.
Environmental science & technology
|June 17, 2025
概括
尽管减少了排放,但流域仍在继续积累. 土壤中遗留的和气候变化可能会推迟生态系统的恢复,并影响未来的循环.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 生物地质化学生物地质化学
背景情况:
- 由于空气质量管理,美国的排放量在过去30年中大幅下降.
- 关于生态系统和生物群对沉积量下降的反应的数据有限.
- 来自纽约阿布图斯湖的长期循环数据提供了一个有价值的案例研究.
研究的目的:
- 在阿布图斯湖 (Arbutus Lake) 合成长期循环数据.
- 为了评估区域湖泊中鱼对变化的流域投入的反应.
- 了解传统和气候变化对生态系统恢复的影响.
主要方法:
- 对循环 (2003-2021) 的综合长期数据.
- 分析了流域输入量 (干湿沉积,垃圾降落).
- 监控支流水银流和湖水银负载.
- 在区域湖泊中评估鱼类度.
主要成果:
- 流域的输入量减少,但流域积累了 (25.2 ± 2.8 μg m-2 yr-1).
- 附带流量最初出现下降,随后最近增加,可能是由于气候因素.
- 没有发现净负载或鱼类度的显著趋势.
结论:
- 土壤中遗留的可能会阻碍湖泊生物群对降低沉积的反应.
- 气候变化和土壤化学变化可能会影响森林生态系统中的循环.
- 从历史上的污染中恢复生态系统可能是一个缓慢,复杂的过程.
相关概念视频
01:27The Periodic Table and Organismal Elements
20.4K
Elements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally occurring, and only a few of them are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.
Periodic Table Provides Information...
Periodic Table Provides Information...
20.4K
00:46Bioremediation
20.3K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
20.3K