相关实验视频
Updated: Jul 1, 2025

07:37
Resurrection of Dormant Daphnia magna: Protocol and Applications
Published on: January 19, 2018
18.3K
夜间变暖和添加对淡水湿地微气候的影响,淡水湿地以Phragmites australis为主
Yunpeng Guo1, Jian Song1, Jiayin Feng1
1School of Life Sciences/Hebei Basic Science Center for Biotic Interaction, Institute of Life Science and Green Development, Hebei University, Baoding 071002, PR China.
The Science of the total environment
|March 10, 2024
概括
夜间变暖增加了湿地温度,而气添加则降低了它们. 这些微气候变化对于了解全球变化的湿地碳循环至关重要.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 气候变化研究 气候变化研究
背景情况:
- 微气候显著影响碳循环.
- 由于有限的实地实验,全球变化对湿地微气候的影响尚不清楚.
研究的目的:
- 调查夜间变暖和添加对湿地微气候的影响.
- 确定控制Pragmites australis占主导地位的淡水湿地温度变化的因素.
主要方法:
- 在淡水湿地进行实地操纵实验.
- 在不同的处理下监测空气,水和沉积物温度.
- 分析植被变化 (高度,叶面积指数) 和蒸汽压力缺陷的影响.
主要成果:
- 夜间变暖增加了每天的空气,水和沉积物温度.
- 添加气通过增加植被覆盖面来降低水和沉积物温度.
- 蒸汽压力缺陷影响了空气温度的增加,而植被变化则调解了的冷却效应.
结论:
- 经验证据支持淡水湿地的气候变暖微气候反.
- 沉积可以通过降低水和沉积物温度来抵消变暖效应.
- 温暖化和添加对微气候的影响差异对于预测湿地碳循环对气候变化的反应至关重要.
相关概念视频
Responses to Drought and Flooding
10.7K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.7K
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
Adaptations that Reduce Water Loss
25.6K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.6K
Global Climate Change
24.4K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.4K
Overview of Nitrogen Metabolism
7.9K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
7.9K
Responses to Heat and Cold Stress
13.5K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.5K

