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Journal of Desert Research ›› 2026, Vol. 46 ›› Issue (1): 162-174.DOI: 10.7522/j.issn.1000-694X.2025.00351

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A review of dew formation and its ecohydrological effects in arid zone

Yanli Zhuang1(), Wenzhi Zhao1, Kaiyu Liu1,2   

  1. 1.Linze Inland River Basin Research Station / State Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2025-11-23 Revised:2025-12-25 Online:2026-01-20 Published:2026-03-09

Abstract:

Dew, an often-overlooked water source formed through phase change at the air‑interface, plays an irreplaceable role in compensating for water scarcity in arid ecosystems. Based on long‑term field monitoring at the Linze Inland River Basin Research Station of the Chinese Ecosystem Research Network, this paper systematically reviews the formation mechanisms and ecohydrological effects of dew in the Linze desert area, focusing on two main aspects: (1) the formation mechanisms and water contribution of soil moisture condensation in sandy and gravel desert habitats, analyzing its occurrence patterns and key influencing factors; and (2) the mechanisms by which dew affects desert plant growth, including its regulatory effects on seed germination and its function in leaf water use and photosynthetic product accumulation. Future efforts should focus on establishing a long-term, multi-dimensional monitoring network, deepening research on the integrated role of dew in ecosystem carbon‑water‑nutrient cycling, and elucidating the coupled responses between dew and ecosystems under climate change, thereby providing a scientific basis for ecological restoration and sustainable water resource management in arid regions.

Key words: desert habitat, dew, desert plants, plant-water relations, ecohydrological effects

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