DOI: 10.1111/gcb.14378
Scopus记录号: 2-s2.0-85050390934
论文题名: Hydrological response of biological soil crusts to global warming: A ten-year simulative study
作者: Li X.-R. ; Jia R.-L. ; Zhang Z.-S. ; Zhang P. ; Hui R.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期: 10 起始页码: 4960
结束页码: 4971
语种: 英语
英文关键词: biological soil crusts
; dew entrapment
; evaporation
; infiltration
; open-top chamber
; warming and reduced precipitation
Scopus关键词: Arthropoda
; Bryophyta
; Cyanobacteria
; Tracheophyta
英文摘要: Biological soil crusts across the desert regions play a key role in regional ecological security and ecological health. They are vital biotic components of desert ecosystems that maintain soil stability, fix carbon and nitrogen, influence the establishment of vascular plants, and serve as habitats for a large number of arthropods and microorganisms, as well as influencing soil hydrological processes. Changes in temperature and precipitation are expected to influence the functioning of desert ecosystems by altering biotic components such as the species composition of biological soil crusts. However, it remains unclear how these important components will respond to the prolonged warming and reduced precipitation that is predicted to occur with climate change. To evaluate how the hydrological properties of these biological soil crusts respond to these alterations, we used open-top chambers over a 10-year period to simulate warming and reduced precipitation. Infiltration, dew entrapment, and evaporation were measured as surrogates of the hydrological functioning of biological soil crusts. It was found that the ongoing warming coupled with reduced precipitation will more strongly affect moss in crustal communities than lichens and cyanobacteria, which will lead to a direct alteration of the hydrological performance of biological soil crusts. Reductions in moss abundance, surface cover, and biomass resulted in a change in structure and function of crustal communities, decreased dew entrapment, and increased infiltration and evaporation of biological soil crusts in desert ecosystems, which further impacted on the desert soil water balance. © 2018 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110200
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Shapotou Desert Research and Experiment Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; Gansu Provincial Key Laboratory of Stress Eco-physiology in Cold and Arid Regions, Lanzhou, China
Recommended Citation:
Li X.-R.,Jia R.-L.,Zhang Z.-S.,et al. Hydrological response of biological soil crusts to global warming: A ten-year simulative study[J]. Global Change Biology,2018-01-01,24(10)