水域特征和水的物理化学参数对溪流和小水库中和的度的影响
Long Chen1, Qinghu Jiang2, Qiuxiang Tian2
1Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station, The Chinese Academy of Sciences & Hubei Province, Wuhan, 430074, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
Journal of environmental management
|October 29, 2025
概括
溪流和水库中的营养水平因不同的驱动因素而有所不同. 有效的流域管理需要季节性适应策略,重点是河流的河岸缓冲区和水库的侵蚀控制.
科学领域:
- 环境科学 环境科学
- 水资源管理 水资源管理
- 生态生态学 生态生态学
背景情况:
- 水质对于水资源的可持续性和安全性至关重要.
- 营养物质度是水质的关键指标.
- 了解流域的营养动力学对于有效管理至关重要,特别是在中国南北水分转移项目区域.
研究的目的:
- 调查溶解总 (DTN) 和总 (TP) 度的关键采集范围和现场驱动因素.
- 为了比较丹江口水库流域内的小水库与溪流中的营养动态.
- 为营养控制提供季节性适应性管理策略的信息.
主要方法:
- 在65个河流和23个小水库中进行了8次季节性采样活动.
- 集成的水域特征和水的物理化学参数.
- 应用了模型平均的多重线性回归 (ΔAIC <2) 来识别关键驱动因素.
主要成果:
- 春季和夏季DTN和TP度较高,受农业和水文学的影响.
- 在溪流中,DTN是由土壤总 (STN),pH和边缘密度 (ED) 驱动的.
- 在水库中,DTN是由溶解氧 (DO) 和STN调节的.
- 在流中,TP受度,斜率和传染指数 (CONTAG) 的影响.
- 在水库中,TP与度和土壤总 (STP) 有关.
结论:
- 在洛特 (流) 和晶体 (水库) 系统中存在不同的营养调节机制.
- 管理策略应适应季节性变化.
- 对于溪流,专注于沿河缓冲区和景观聚合.
- 对于水库,优先考虑侵蚀控制,度降低和氧气管理.
相关概念视频
The Phosphorus Cycle
43.6K
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.
43.6K
Factors Affecting Solubility
36.6K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
36.6K
Quality of Water
501
In concrete preparation, the quality of water is paramount as it affects the strength and durability of the concrete. Potable water is usually preferred; however, it must not have excessive sodium or potassium to prevent compromising the concrete's integrity. Water quality is typically evaluated based on impurities such as dissolved solids, chlorides, and sulfates, and its pH value is ideally between 6 and 8. Even slightly acidic natural water may be acceptable unless it contains harmful...
501
Typical Model Studies
615
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
615
Environmental Applications of Microorganisms
929
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
929


