土壤湿度和土壤温度对菌菌菌的影响
Qianqian Li1, Beichen Zhang2,3, Runqiu Wang4
1Department of Environmental, Agricultural, and Occupational Health College of Public Health University of Nebraska Medical Center Omaha NE USA.
GeoHealth
|November 28, 2025
概括
谷热 (VF) 的发病率随着更热,更干燥的土壤和更多尘埃的日子而增加. 多年土壤湿度和温度周期,特别是在冬季和春季,是预测这种气候敏感真菌感染的关键预测因素.
科学领域:
- 环境科学 环境科学
- 传染病流行病学 传染病流行病学
- 气候变化的影响 气候变化的影响
背景情况:
- 型菌病,或山谷热 (VF),是气候敏感的真菌感染普遍存在于美国西南部.
- 现有的关于VF气候驱动因素的研究经常使用降水和空气温度,这可能不准确地反映土壤的热水条件.
- 土壤湿度 (SM) 和土壤温度 (ST) 对VF发病率的直接影响需要进一步调查.
研究的目的:
- 调查土壤热水条件 (SM,ST),风速,尘埃天气和亚利桑那州超大流行县VF发病率之间的季节性关联.
- 评估土壤湿度和温度动态的预测能力,包括多年周期,VF发生.
- 为提升山谷热病早期预警系统的发展提供信息.
主要方法:
- 利用多变量负二项式回归来分析2000-2022年VF发生率和气候数据之间的季节性关系.
- 纳入了北美土地数据同化第二阶段 (NLDAS-2) 的土壤湿度,土壤温度和风速数据.
- 包括基于PM$_{10}$的尘埃天数作为空气中的真菌子潜力的衡量.
主要成果:
- 较高的VF发病率与更热,更干燥的土壤和季节性尘埃天数的增加有关.
- 多年土壤热水循环 (交替的湿干,冷热时期) 显著影响了VF发病率,湿度和热量被确定为真菌生长的先决条件.
- 土壤湿度在不同季节之间表现出比土壤温度更一致的影响,冬季和春季的土壤特别有影响;更潮湿的冬季/季风和干燥,热泉/降雨在更高的发病率之前.
结论:
- 土壤的热水条件,特别是多年的土壤湿度和温度周期,是谷热发病率的关键驱动因素.
- 这些发现支持将基于土壤的气候指标集成到VF预测系统中,提供长达三年的潜在交付时间.
- 改进的预测可以更好地为特有地区准备应对升温,干旱和日益变化的气候带来的不断升级的挑战.
相关概念视频
Factors Influencing Microbial Growth: Temperature
1.1K
Microorganisms display remarkable adaptations, enabling them to thrive in diverse ecological niches across a wide range of temperatures. Temperature profoundly influences microbial growth by affecting enzymatic activity, membrane fluidity, and other cellular processes.Each microorganism operates within a specific temperature range defined by three cardinal points: minimum, optimum, and maximum. Below the minimum temperature, membranes lose fluidity, halting transport processes. Above the...
1.1K
Fungal Phylum Microsporidia
387
Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
387
Factors Influencing Microbial Growth: Osmolarity
695
Osmolarity is the measure of solute concentration in a solution. It plays a critical role in determining water availability for organisms. Water moves across semipermeable membranes through osmosis, flowing from regions of lower solute concentration (more dilute) to regions of higher solute concentration (more concentrated).In high-solute environments, microbial cells lose water, leading to dehydration and inhibited growth. The extent to which water is available to microbes in such environments...
695
Responses to Heat and Cold Stress
14.6K
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.
14.6K
Skin Diseases and Disorders
5.1K
Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
5.1K
Factors Affecting Body Temperature
8.5K
As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may include:
Factors may include:
8.5K


