Biocrusts enhance non-rainfall water deposition and alter its distribution in dryland soils

Li, Shenglong; Bowker, Matthew A.; Xiao, Bo

doi:10.1016/j.jhydrol.2021.126050

Cited by 35 publications

(44 citation statements)

References 70 publications

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“…As outlined in the Introduction, the amount of rain and dew are considered as the main factors which influence the growth of biocrust (see e.g. Kidron and Kronenfeld, 2020;Li et al, 2021a, b;Ouyang et al;Pan et al, 2010;Zhuang and Zhao, 2017). However, the frequency of rain events (longest period of drought) is the main factor according to Büdel et al (2009).…”

Section: Water Availability and Biocrust Distributionmentioning

confidence: 99%

“…Pan et al (2010) concluded on the mutual enhanced effect between dew and artificially revegetation ecosystems in the arid desert ecosystem in Shapotou (China). Li et al (2021a, b), in recent papers, determine that biocrust benefits from non-rainfall water deposition and modify their distribution in drylands soils. Dewfall can be presented as a critical source of water in deserts environments allowing to determine the sustainability of sand to stabilize planted vegetation (Zhuang and Zhao, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Kidron (2019) suspects dew to be a necessary water source for cyanobacteria. Biocrust alter non-rainfall distribution by depth, concentrating it in the surface (Li et al, 2021a, b). Biocrust can boost the use of non-rainfall water according to Ouyang et al (2017).…”

Section: Introductionmentioning

confidence: 99%

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Mapping past, present and future dew and rain water resources for biocrust evolution in southern Africa

Muselli

Beysens

2021

Journal of Hydrology and Hydromechanics

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Biocrust sustainability relies on dew and rain availability. A study of dew and rain resources in amplitude and frequency and their evolution is presented from year 2001 to 2020 in southern Africa (Namibia, Botswana, South Africa) where many biocrust sites have been identified. The evaluation of dew is made from a classical energy balance model using meteorological data collected in 18 stations, where are also collected rain data. One observes a strong correlation between the frequency of dew and rain and the corresponding amplitudes. There is a general tendency to see a decrease in dew yield and dew frequency with increasing distance from the oceans, located west, east and south, due to decreasing RH, with a relative minimum in the desert of Kalahari (Namibia). Rain amplitude and frequency decreases when going to west and north. Short-term dew/rain correlation shows that largest dew yields clearly occur during about three days after rainfall, particularly in the sites where humidity is less. The evolution in the period corresponds to a decrease of rain precipitations and frequency, chiefly after 2010, an effect which has been cyclic since now. The effect is more noticeable towards north. An increase of dew yield and frequency is observed, mainly in north and south-east. It results in an increase of the dew contribution with respect to rain, especially after 2010. As no drastic changes in the distribution of biomass of biocrusts have been reported in this period, it is likely that dew should compensate for the decrease in rain precipitation. Since the growth of biocrust is related to dew and rain amplitude and frequency, future evolution should be characterized by either the rain cycle or, due to global change, an acceleration of the present tendency, with more dew and less rainfalls.

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Section: Water Availability and Biocrust Distributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mapping past, present and future dew and rain water resources for biocrust evolution in southern Africa

Muselli

Beysens

2021

Journal of Hydrology and Hydromechanics

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“…Biocrusts significantly affect the soil hydrological processes in deserts and sandy lands by altering rainfall infiltration, runoff, surface evaporation, non-rainfall water collection (dew, fog, and water vapor sorption) as well as the moisture of shallow and deep soils ( Liu et al, 2006 ; Zhang et al, 2008 , 2009b ; Li et al, 2010b , 2021a , b ; Pan et al, 2010 ; Xiao et al, 2010 ; Bu et al, 2015a ; Wang et al, 2017 ).…”

Section: Biocrusts Serve As Ecosystem Engineersmentioning

confidence: 99%

“…However, the mean daily amounts of dew on the surfaces of moss- and algae-crusts in the Mu Us Sandy Land were 0.12 and 0.10mm d −1 , respectively ( Sun et al, 2008 ). The dew amount of the biocrusts was increased by up to 130.5% on the loess and 157.1% on the aeolian sand in semiarid regions ( Li et al, 2021b ). Non-rainfall water forms on biocrusts owing to their surface microclimates ( Liu et al, 2007 ; Zhang et al, 2009b ), adherence to several microbial organic components ( Pan et al, 2010 ), trichome development, and the special water collection and transmission systems (grooves and verruca) of mucilage secretions ( Rao et al, 2009 ) and leaf tips ( Tao and Zhang, 2012 ).…”

Section: Biocrusts Serve As Ecosystem Engineersmentioning

confidence: 99%

Biocrust Research in China: Recent Progress and Application in Land Degradation Control

Rong

Tan

et al. 2021

Front. Plant Sci.

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Desert ecosystems are generally considered lifeless habitats characterised by extreme environmental conditions, yet they are successfully colonised by various biocrust nonvascular communities. A biocrust is not only an important ecosystem engineer and a bioindicator of desert ecological restoration but also plays a vital role in linking surficial abiotic and biotic factors. Thus, extensive research has been conducted on biocrusts in critical dryland zones. However, few studies have been conducted in the vast temperate deserts of China prior to the beginning of this century. We reviewed the research on biocrusts conducted in China since 2000, which firstly focused on the eco-physiological responses of biocrusts to species composition, abiotic stresses, and anthropological disturbances. Further, research on the spatial distributions of biocrusts as well as their succession at different spatial scales, and relationships with vascular plants and soil biomes (especially underlying mechanisms of seed retention, germination, establishment and survival of vascular plants during biocrust succession, and creation of suitable niches and food webs for soil animals and microorganisms) was analysed. Additionally, studies emphasising on the contribution of biocrusts to ecological and hydrological processes in deserts as well as their applications in the cultivation and inoculation of nonvascular plants for land degradation control and ecological restoration were assessed. Finally, recent research on biocrusts was evaluated to propose future emerging research themes and new frontiers.

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Slope position affects nonstructural carbohydrate allocation strategies in different types of biological soil crusts in the Gurbantunggut Desert

Zhang,

Yang,

Zang

et al. 2024

Plant Soil

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Biocrusts enhance non-rainfall water deposition and alter its distribution in dryland soils

Cited by 35 publications

References 70 publications

Mapping past, present and future dew and rain water resources for biocrust evolution in southern Africa

Mapping past, present and future dew and rain water resources for biocrust evolution in southern Africa

Biocrust Research in China: Recent Progress and Application in Land Degradation Control

Slope position affects nonstructural carbohydrate allocation strategies in different types of biological soil crusts in the Gurbantunggut Desert

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