干旱区研究2026，Vol.43Issue(5)：943-954,12.DOI:10.13866/j.azr.2026.05.05
近地表水汽对植被水分补偿及量化研究进展
Research progress on moisture compensation of near-surface atmospheric water for vegetation and its quantification in arid environments
摘要
Abstract
Near-surface atmospheric water(NSAW)serves as an important hidden water source in arid-zone eco-systems,where its role in mediating water compensation is key to alleviating vegetation water stress amid the in-creasing frequency of extreme droughts driven by climate change.However,the compensation process,underly-ing mechanisms,weighting schemes,and quantification methods associated with NSAW and vegetation water re-main to be further clarified.Therefore,this paper reviews the research progress on the hydrological processes and functional mechanisms of NSAW,the compensation mechanisms of NSAW for vegetation and soil moisture,and the quantification methods for phase transformation of NSAW.Existing research findings indicate that vegetation can absorb and utilize NSAW water through stomata,cuticles,or specialized structures,and this pathway predom-inantly governs the process by which vegetation acquires NSAW water.NSAW water is absorbed or liquefied by the soil,indirectly regulating vegetation water content through the hydraulic redistribution(HR)process of the root system and thereby establishing a new moisture balance.Dynamic observations of NSAW,along with high-precision analysis of water sources,have been achieved through the integration of micrometeorological monitor-ing and stable isotope technology.This approach contributes significantly to the quantification and simulation of phase transformations in the field of NSAW.Nevertheless,reaching a consensus on the quantification of NSAW phase transformation remains challenging owing to the lack of parameters related to the physical properties of ma-terials,particularly thermodynamic parameters.This deficiency results in an absence of data on the efficiency of leaf absorption of gaseous water,as well as a shortage of multiscale coupling models.In conclusion,this review posits that future investigations should focus on achieving breakthroughs in the coupling effects of NSAW and carbon assimilation,the development of collaborative monitoring technologies utilizing multisource data,and the construction of multiscale dynamic models.These advancements are expected to provide a theoretical foundation for the efficient utilization of water resources under arid conditions.关键词
近地表大气水/叶片吸水/水分补偿/水力再分配Key words
near-surface atmospheric water/leaf water uptake/water compensation/hydraulic redistribution引用本文复制引用
杨艳,张维江,马婷,王磊,马波..近地表水汽对植被水分补偿及量化研究进展[J].干旱区研究,2026,43(5):943-954,12.基金项目
宁夏自然科学基金项目(2022AAC02018) （2022AAC02018）
宁夏重点研发计划项目(2023BEG02054) （2023BEG02054）
宁夏高等学校一流学科建设(水利工程学科)项目(NXYLXK2021A03) （水利工程学科）
