Effects of microbiotic crusts on dew deposition in the restored vegetation area at Shapotou, northwest China

Liu, Lichao; Li, Shouzhong; Duan, Zhiguang; Wang, Tao; Zhang, Zhishan; Li, Xinrong

doi:10.1016/j.jhydrol.2005.12.004

Cited by 94 publications

(104 citation statements)

References 23 publications

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“…However, during large precipitation events (>10 mm), the situation was reversed. As 60% of the precipitation events produce less than 5 mm of rain in the Shapotou region, it is possible to conclude that the formation of BSCs in the sand-binding dunes actually reduces soil evaporation [36,37]. The presence of BSCs prolonged the residence time of water in the shallow soil layer.…”

Section: Influences Of Bsc On Various Hydrological Processesmentioning

confidence: 99%

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Review of the ecohydrological processes and feedback mechanisms controlling sand-binding vegetation systems in sandy desert regions of China

et al. 2013

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Soil water is the key abiotic limiting factor in desert areas and hydrological processes determine the vegetation composition, patterns and processes in desert regions. The hydrological processes can be altered by vegetation succession. In this paper, we review the major advances in ecohydrological research and their potential impact on plant-water relations in revegetated desert communities. The major advances in ecohydrological research over the past 50 years in desert areas were analyzed using a case study that investigated the long-term ecosystem effects of sand-binding vegetation in the Tengger Desert. Key challenges and opportunities for ecohydrology research in the future are also discussed in the context of the major scientific issues affecting sand binding vegetation.

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Section: Influences Of Bsc On Various Hydrological Processesmentioning

confidence: 99%

“…Dew deposition has also been found to be an important factor linking the crusts to hydrological processes [36,44,45]. In the desert, dew serves as a precious water resource for cryptogams in the crusts as well as for other small animals.…”

Section: Influences Of Bsc On Various Hydrological Processesmentioning

confidence: 99%

Review of the ecohydrological processes and feedback mechanisms controlling sand-binding vegetation systems in sandy desert regions of China

et al. 2013

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“…Revegetation also had indirect effects on soil water, such as rainfall interception by the canopy [21,22], spatiotemporal redistribution of precipitation infiltration by stem flow and preferential flow [2325] and soil water redistribution by root distribution and hydraulic lift [26]. In the Shapotou area, where the groundwater level was >60 m below ground, the main replenishment of soil water came from precipitation and dew had little effect, even on shallow soil water [27,28]. In the early stages of revegetation, the effects of vegetation on the spatiotemporal patterns of soil water were comparatively weak.…”

Section: Effects Of Revegetation On Soil Watermentioning

confidence: 99%

“…In the early stages of revegetation, the effects of vegetation on the spatiotemporal patterns of soil water were comparatively weak. The smaller crown and lower coverage by shrubs, herbs and BSCs, as well as a thinner layer of topsoil and BSCs [18], led to a reduced effect on interception and redistribution of precipitation by vegetation and a lower dew yield by BSCs [27]. However, as the coverage of shrubs, herbs and cryptogams increased and developed, canopy interception reached 27% [29] and the thickening and development of BSCs (changing from cyanobacteria dominated crusts to moss dominated crusts) significantly reduced precipitation infiltration [18].…”

Section: Effects Of Revegetation On Soil Watermentioning

confidence: 99%

“…The coverage and abundance of herbaceous species were closely related to precipitation. Although succession of the BSCs was not directly related to soil water and mainly depended on dust deposition and soil stability variation [30], they did affect the redistribution of soil water, especially: infiltration [18,33], dew deposition [27,28] and soil evaporation [34,35]. The ecological (soil stabilization, improved aggregate structure, nitrogen fixation and carbon sequestration) and the hydrological functions performed by BSCs made them an important component of the stable composition of sand-binding vegetation [36].…”

Section: Driving Effects Of Soil Water Dynamics On Vegetation Variationmentioning

confidence: 99%

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Ecological restoration and recovery in the wind-blown sand hazard areas of northern China: relationship between soil water and carrying capacity for vegetation in the Tengger Desert

Zhang

Tan

et al. 2014

Sci. China Life Sci.

118

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The main prevention and control area for wind-blown sand hazards in northern China is about 320000 km 2 in size and includes sandlands to the east of the Helan Mountain and sandy deserts and desert-steppe transitional regions to the west of the Helan Mountain. Vegetation recovery and restoration is an important and effective approach for constraining wind-blown sand hazards in these areas. After more than 50 years of long-term ecological studies in the Shapotou region of the Tengger Desert, we found that revegetation changed the hydrological processes of the original sand dune system through the utilization and space-time redistribution of soil water. The spatiotemporal dynamics of soil water was significantly related to the dynamics of the replanted vegetation for a given regional precipitation condition. The long-term changes in hydrological processes in desert areas also drive replanted vegetation succession. The soil water carrying capacity of vegetation and the model for sand fixation by revegetation in aeolian desert areas where precipitation levels are less than 200 mm are also discussed. desert areas, sand fixation by plant, succession of the artificial vegetation, soil water dynamics, carrying capacity for vegetation Citation:Li XR, Zhang ZS, Tan HJ, Gao YH, Liu LC, Wang XP. Ecological restoration and recovery in the wind-blown sand hazard areas of northern China: relationship between soil water and carrying capacity for vegetation in the Tengger Desert.

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Dew Deserts

Kidron¹

2019

Encyclopedia of Water

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With the addition of relatively substantial amounts of water through dew, dew deserts are characterized by relatively lush flora (and fauna) in comparison to deserts that do not receive dew. While facilitating the growth of plants, dew also facilitates the establishment and growth of micro‐ and small organisms, which have in turn a substantial effect of the food chain. The physical conditions that enable dew formation are discussed, as well as its effect upon lithobionts, biocrusts, and plants. Solid data, principally from the Negev Desert, assist to evaluate the role of dew upon the structure and function of dew desert ecosystems.

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Effects of microbiotic crusts on dew deposition in the restored vegetation area at Shapotou, northwest China

Cited by 94 publications

References 23 publications

Review of the ecohydrological processes and feedback mechanisms controlling sand-binding vegetation systems in sandy desert regions of China

Review of the ecohydrological processes and feedback mechanisms controlling sand-binding vegetation systems in sandy desert regions of China

Ecological restoration and recovery in the wind-blown sand hazard areas of northern China: relationship between soil water and carrying capacity for vegetation in the Tengger Desert

Dew Deserts

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