斯克里地区未开发的土壤是阿尔卑斯山流域水域被忽视的重要源
Jiří Kaňa1,2, Eva Kaštovská3, Michal Choma3
1Institute of Hydrobiology, Biology Centre CAS, Na Sádkách 7, 37005, České Budějovice, Czech Republic. jiri.kana@hbu.cas.cz.
Scientific reports
|September 7, 2023
概括
阿尔卑斯山山地土,尽管缺乏植被,但积极循环营养素. 这些未开发的土壤是从高海拔流域出口到下游水域的移动 (P) 的重要来源.
科学领域:
- 地质科学 地质科学
- 环境科学 环境科学
- 土壤科学 土壤科学
背景情况:
- 阿尔卑斯山流域的特点是未开发的土壤,以稀疏的植被但活跃的营养循环为特征.
- 这些"隐藏"的土壤表现出生物活性和 (N), (P) 和有机碳 (C) 的循环.
研究的目的:
- 为了比较阿尔卑斯山草地土壤的化学和生物化学特性与发达的草地土壤.
- 评估土作为高山流域水域移动的来源的作用.
主要方法:
- 在塔特拉山脉的14个阿尔卑斯山流域中,对草地和草地土壤的比较分析.
- 在四个选定的阿尔卑斯山流域进行详细的土壤调查,覆盖率>30%.
主要成果:
- 草地土壤显示移动 (P) 形式的度明显高于草地土壤.
- 土中的微生物活动对于快速周转的P提取具有高度特异性.
- 尖沙土壤是高海拔流域水域移动P的重要来源.
结论:
- 阿尔卑斯山草地土壤是高海拔地区生物化学循环的重要贡献者.
- 这些土壤显著影响陆地出口到水生生态系统.
相关概念视频
The Phosphorus Cycle
37.5K
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.
37.5K
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
Roles of Electrolytes: Calcium and Phosphate
313
Calcium and phosphate are essential electrolytes in the human body, with calcium being the most abundant mineral. Around 99% of the body's calcium is stored in the skeleton and teeth, forming a crystal lattice of mineral salts in combination with phosphates. Calcium plays crucial roles in various bodily functions such as blood clotting, neurotransmitter release, muscle tone maintenance, and nervous and muscle tissue excitability.
The calcium concentration in blood plasma is primarily...
The calcium concentration in blood plasma is primarily...
313
Factors Affecting Solubility
33.5K
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:
33.5K
Introduction to Electrolytes
10.3K
In humans, electrolytes play a vital role in various physiological processes. Balancing electrolyte levels is essential for normal body functions; their imbalance can be life-threatening. The major electrolytes include sodium, potassium, chloride, calcium, phosphate, and bicarbonate. They are primarily involved in physiological processes, such as nerve signal transmission, membrane trafficking, muscle contraction, buffering body fluids, and balancing water levels in the body.
Role of Sodium
One...
Role of Sodium
One...
10.3K
The Soil Ecosystem
20.4K
Plants obtain inorganic minerals and water from the soil, which acts as a natural medium for land plants. The composition and quality of soil depend not only on the chemical constituents but also on the presence of living organisms. In general, soils contain three major components:
20.4K


