首页> 外文期刊>International journal of ecohydrology and hydrobiology >Determining the ecohydrological character of aquatic refugia in a dryland river system: the importance of temporal scale
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Determining the ecohydrological character of aquatic refugia in a dryland river system: the importance of temporal scale

机译:确定旱地河流系统中水生避难所的生态水文特征:时间尺度的重要性

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摘要

Aquatic refugia are important features of riverine landscapes; providing habitat for biota during extremes and facilitating the recovery of biota from disturbance. The persistence and quality of aquatic refugia is intricately linked to the hydrological regime of their parent rivers. Knowledge of the influence of hydrology on refugia is essential for understanding their role in the functioning of riverine ecosystems. A hierarchical framework is used to investigate the hydrological character of refugial waterholes in a dryland river system at multiple temporal scales. The study demonstrates that temporal variability is matched by a high level of spatial variability in hydrological character and that spatial patterns in hydrological character varied according to the temporal scale at which hydrological characterisation was made. The findings of this study have important implications for dryland river ecosystems because of the fundamental importance of hydrology as a driver of riverine ecosystems.
机译:水生避难所是河流景观的重要特征。在极端情况下为生物群提供栖息地,并促进生物群从干扰中恢复。水生避难所的持续性和质量与其母河的水文状况有着复杂的联系。了解水文学对避难所的影响对于了解其在河流生态系统功能中的作用至关重要。分层框架用于调查干旱地区河流系统中多个时间尺度上避难水坑的水文特征。研究表明,时间变异性与高水平的水文特征空间变异性相匹配,并且水文特征的空间格局根据进行水文特征化的时间尺度而变化。由于水文学作为河流生态系统驱动力的根本重要性,因此本研究的结果对旱地河流生态系统具有重要意义。

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