Effects of biological soil crusts on the characteristics of hygroscopic and condensate water deposition in alpine sandy lands

Long, 成龙 Cheng; Xiaohong, 贾晓红 Jia; Bo, 吴波 Wu; Yuanshou, 李元寿 Li; Xuebin, 赵雪彬 Zhao; Hong, 周虹 Zhou

doi:10.5846/stxb201704070595

Cited by 2 publications

(2 citation statements)

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“…The percentage of annual condensation water to annual precipitation was in the order of Gonghe > Xinghai > Yushu > Maqin > Zeku > Banma. The variation trend of condensation water, the range of daily condensation water, and the annual amount of condensation water were consistent with the research results of the Fenghuoshan Basin [35], Heihe Basin [36], and Shazhuyu alpine sandy areas [37]. The amount of condensation water during the year showed a bimodal trend (see Figure 4), with the lowest amounts in winter and spring, the largest in late summer and early autumn (August), and the second-largest in late autumn and early winter (October and November).…”

Section: Analysis Of Condensation Water Of Different Vegetationsupporting

confidence: 88%

Spatial Water Consumption Test and Analysis of Various Typical Vegetation in the Sanjiangyuan Region

Jia

2023

Sustainability

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Vegetation water consumption in the Sanjiangyuan Region is of direct significance to the utilization of local water resources. To measure the actual evapotranspiration of various typical vegetation with different vegetation types in the Sanjiangyuan Region, a Lysimeter was used between November 2019 and October 2020. Additionally, the Penman–Monteith equation was used to estimate the condensation water of different vegetation types. Based on the measured data, this paper analyzes the spatial distribution of annual water consumption and annual runoff of various vegetation types. Furthermore, the spatial and temporal distribution of monthly water consumption of vegetation types on different underlying surfaces are discussed. To establish the relationship between the precipitation and runoff of various vegetation types, an artificial rainfall test was conducted. This study’s results reveal several key findings: (1) Condensation water is widespread and can be observed throughout the year. The annual condensation water volume ranges between 28.47 and 56.88 mm, which is particularly significant for the growth of alpine desert steppe and alpine steppe vegetation. (2) The annual water consumption in the Sanjiangyuan Region was higher in the south than in the north. Shrub water consumption was found to be 58.1–73.3 mm higher than that of grasses. Water consumption primarily occurred during the growing season, spanning from May to October. (3) The total water consumption in the growing season of the alpine meadow was less affected by precipitation compared to the non-growing season (from November to the next April). (4) The runoff yield can be ignored in the non-growing season when calculating water balance. However, during the growing season, the calculation of runoff cannot be ignored due to its significant impact on vegetation water consumption.

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Section: Analysis Of Condensation Water Of Different Vegetationsupporting

confidence: 88%

Spatial Water Consumption Test and Analysis of Various Typical Vegetation in the Sanjiangyuan Region

Jia

2023

Sustainability

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“…Researchers in China have investigated surface condensation water in different regions. Bin et al [10] studied the formation characteristics of condensation water in the Maowusu Sand and its influence on water balance; Xiaohan et al [11] investigated the characteristics of surface condensation water under different types of sand-fixing shrubs in the Maousu Sandy Area; Zhifeng et al [12] investigated the source of water vapor in soil condensation in the Guanzhong Plain; Wanpeng et al [13] investigated the formation characteristics of soil condensate in Cocosi; Qiancheng et al [14] investigated the characteristics of soil condensation and the source of water vapor in winter deserts; Chunjie et al [15] explored the evaporative condensation in the Qinghai-Tibet Plateau region; Long et al [16] investigated the effect of biological soil crust on condensation in alpine sand areas; Rongyi et al [17] analyzed the formation of soil condensation in the Gurbantunggut Desert; Yanxia et al [18] discussed the influence of topography on condensation in the Shapotou area; and Bin et al [19] studied soil condensation in different substrates of the Tarim River.…”

Section: Introductionmentioning

confidence: 99%

Surface Condensation Water under Salix psammophila Is the Main Water Source in Addition to Rainfall in the Kubuqi Desert

Wang,

Zhang,

Cao

et al. 2023

Water

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Amidst climate change, managing water and vegetation adaptability is vital in ecology and agriculture. Salix psammophila is key in deserts, maintaining ecological balance and combating desertification. Understanding its surface condensation and response to weather is critical for survival. This study aims to investigate the formation patterns of surface condensation water under S. psammophila at different irrigation levels and the influence of precipitation, temperature, relative humidity, and wind speed. Conducted in China’s Kubuqi Desert from June to September 2022, the study employed micro-lysimeters with four irrigation test sets and a control group, conducting detailed observations at various locations. The results indicate that S. psammophila significantly influences surface condensation water by blocking solar radiation and reducing wind speed. The drip irrigation system also regulates surface condensation water on S. psammophila. Moreover, meteorological factors such as 24 h maximum temperature, relative humidity difference, wind speed, and air vapor pressure deficit show significant correlations with surface condensation water formation. In conclusion, this study enhances the understanding of desert ecosystem water balance, vegetation adaptability, and efficient water resource utilization. It provides valuable scientific guidance for the conservation and restoration of desert ecosystems.

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Effects of biological soil crusts on the characteristics of hygroscopic and condensate water deposition in alpine sandy lands

Cited by 2 publications

References 0 publications

Spatial Water Consumption Test and Analysis of Various Typical Vegetation in the Sanjiangyuan Region

Spatial Water Consumption Test and Analysis of Various Typical Vegetation in the Sanjiangyuan Region

Surface Condensation Water under Salix psammophila Is the Main Water Source in Addition to Rainfall in the Kubuqi Desert

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