Responses of lake fluctuation to climate change in Horqin Sandy Land

Xueli, 常学礼 Chang; Xueyong, 赵学勇 Zhao; Wei, 王玮 Wang; Liangxu, 刘良旭 Liu

doi:10.5846/stxb201207110979

Cited by 5 publications

(3 citation statements)

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“…Compared with the empirical model of lake area we constructed, it is not a continuity equation. However, Chang et al believe that there is a significant relationship between lake surface area and precipitation when the regional single cumulative precipitation (24 h precipitation) is more than 25 mm [48]. Therefore, the empirical model of lake surface area constructed in this study is not a continuity equation.…”

Section: Potential Causes Of Lake Change Based On Hydro-meteorologica...mentioning

confidence: 82%

“…On the one hand, the stability of lakes in sandy land is poor, mainly affected by meteorological changes in the long term [7,46,47]. On the other hand, lakes in sandy land can develop a locally humid environment with relatively good water conditions, providing distinct functions of regulating the local microclimate, increasing air humidity, and degrading sand and dust [11,48]. Under the unique geographical conditions of the study area, most lakes are small closed lakes.…”

Section: Potential Causes Of Lake Change Based On Hydro-meteorologica...mentioning

confidence: 99%

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Spatio-Temporal Evolution of Inland Lakes and Their Relationship with Hydro-Meteorological Factors in Horqin Sandy Land, China

et al. 2023

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In the inland closed area of Horqin Sandy Land, China, lakes are the most important source of water, and they maintain the regional hydrological balance and ecosystem health. Clarifying long-term continuous changes of inland lake surface area and water storage in the sandy land is thus of great significance to the management of water resources in arid and semi-arid areas. This study estimated changes in the surface area and water storage of small lakes in the sandy land during 1984–2021 using a multiple index threshold method and an empirical equation based on Shuttle Radar Topography Mission (SRTM) DEM (digital elevation model) data and Landsat 5/7/8 images. Hydro-meteorological variables were also incorporated to explore their potential relationship with changes in the lake elements. The lakes in the sandy land resemble stars or dots, with distinct inhomogeneity. Permanent lakes account for the majority of the total lake area, mostly distributed in the center and east of the study area, whereas most seasonal lakes are small water bodies, with surface areas of 0.1–0.5 km2 and irregularly distributed. Lake surface area and water storage underwent frequent changes during the 38 years, and could be divided into three characteristic fluctuation phases. From 1984 to 1999, the lake surface area fluctuated greatly, and the water storage increased by approximately 0.3732 Gt, with an average expansion rate of 0.0572 Gt/y. Specifically, lakes with a surface area >2 km2 primarily accounted for the expansion. From 1999 to 2004, the lake area shrank sharply to the lowest point, and the water storage capacity decreased by approximately 0.4003 Gt. From 2004 to 2021, the lake surface area and water storage tended to be stable. Annual fluctuations of lake surface area and water storage were mostly affected by precipitation and evapotranspiration, followed by vapor pressure deficit, wet day frequency, and temperature, which have significant periodicity and hysteresis.

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Section: Potential Causes Of Lake Change Based On Hydro-meteorologica...mentioning

confidence: 82%

Section: Potential Causes Of Lake Change Based On Hydro-meteorologica...mentioning

confidence: 99%

Spatio-Temporal Evolution of Inland Lakes and Their Relationship with Hydro-Meteorological Factors in Horqin Sandy Land, China

et al. 2023

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“…The alteration of the hydrological cycle, as a consequence of sand-fixing vegetation, is one of the primary driving forces behind this water imbalance in the region [ 17 , 18 ]. Chang et al discovered that with the sand-fixing vegetation coverage being increased, the area of sand lakes decreased by 26% in Horqin Sandy Land, China [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Artificial Vegetation for Sand Stabilization May Impact Sand Lake Dynamics in Dune Regions

Alamusa,

Su,

Zhou

et al. 2024

Plants

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Vegetation on dunes regulates the water supply from the dunes to the inter-dune lowland, which is a crucial factor affecting lake water dynamics in the inter-dune lowland. Previous researchers have paid insufficient attention to the water regulation function of dunes on a landscape- and regional scale. To fill this gap, both remote sensing technology and field observations were used to analyze the variations in the lake area and their influence factors, such as vegetation coverage and precipitation in the lake watershed, on a multi-year scale (2000–2020) and one-year scale (2021), respectively. The results showed that precipitation is the main factor influencing the changes in lake water, and artificial sand vegetation can regulate the changes in lake water. On the multi-year scale, with the coverage of artificial sand-fixing vegetation increasing on sand dunes in the lake watershed, the areas of the lakes were gradually decreasing. On the one-year scale, with dune vegetation coverage increased, the water supply from dunes to lakes showed a decreasing trend. This model can provide a possibility for estimating and predicting the influence of water supply from dunes to lakes that is affected by sand-fixing vegetation. The findings have significant theoretical and practical utility for the rational utilization of water resources in sandy land, as well as for assisting in the selection of an optimized construction mode for desert control projects.

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Study on vegetation change of Taitemar Lake during ecological water transfer

Zhao

2019

Environ Monit Assess

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Responses of lake fluctuation to climate change in Horqin Sandy Land

Cited by 5 publications

References 0 publications

Spatio-Temporal Evolution of Inland Lakes and Their Relationship with Hydro-Meteorological Factors in Horqin Sandy Land, China

Spatio-Temporal Evolution of Inland Lakes and Their Relationship with Hydro-Meteorological Factors in Horqin Sandy Land, China

Artificial Vegetation for Sand Stabilization May Impact Sand Lake Dynamics in Dune Regions

Study on vegetation change of Taitemar Lake during ecological water transfer

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