Changes in Water Surface Area of the Lake in the Steppe Region of Mongolia: A Case Study of Ugii Nuur Lake, Central Mongolia

Sumiya, Erdenesukh; Dorjsuren, Batsuren; Yan, Denghua; Dorligjav, Sandelger; Wang, Hao; Enkhbold, Altanbold; Weng, Baisha; Qin, Tianling; Wang, Kun; Gerelmaa, Tuvshin; Oyunbaatar, Dambaravjaa; Bi, Wuxia; Yang, Yuheng; Ganbold, Byambabayar; Gedefaw, Mohammed; Abiyu, Asaminew; Girma, Abel

doi:10.3390/w12051470

Cited by 15 publications

(5 citation statements)

References 47 publications

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“…An analysis of ten lakes with considerable importance in Turkey showed a decrease in the surface area of nine of them, reaching 81% in the years 1985-2022 [20]. Research on changes in the surface area of Lake Ugii Nuur (Mongolia) showed that in the period of 1986-2018 it decreased by 13.5%, and the primary hydrometeorological factors determining the situation included evaporation and river outflow [43]. Wine et al [44] determined that agriculture and changes in the direction of water flow were the main factors causing the substantial shrinking of Lake Kinneret.…”

Section: Discussionmentioning

confidence: 99%

A Century of Changes in the Surface Area of Lakes in West Poland

Ptak,

Szyga-Pluta,

Heddam

et al. 2023

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Lakes are an important element of the hydrosphere that contribute to the stabilisation of water circulation by providing biodiversity conditions or supporting the development of different branches of the economy. All these properties depend on the longevity of lakes in the environment and the processes related to their evolution. Based on archival morphometric data from historical maps and modern cartographic studies, this paper presents an analysis of changes in their surface area over a period of 100 years. Among 169 lakes, a decrease in surface area was recorded in 156 cases (including the complete disappearance of two lakes); no change was observed in four lakes; and seven lakes increased their surface area. The total surface area of all the lakes has decreased by 11.4% in comparison with the initial state in the early 20th century. The highest rate of decline concerned the shallowest lakes with a maximum depth of up to 5.0 m and lakes with the smallest surface area of up to 20 ha, averaging 24.1% and 22.2%, respectively. The spatial distribution of changes in the surface area of lakes is variable, and at a larger scale it presents no similarities. This suggests that factors determining the rate and direction of changes in the surface area of lakes depend on their individual features and local conditions, which is in accordance with similar studies from the territory of Poland. The obtained results reveal the scale of the changes in the surface area of the lakes, potentially providing important information for authorities in charge of water management in the context of activities aimed at slowing down the disappearance of these valuable ecosystems.

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Section: Discussionmentioning

confidence: 99%

A Century of Changes in the Surface Area of Lakes in West Poland

Ptak,

Szyga-Pluta,

Heddam

et al. 2023

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“…The amount of temperature and precipitation was determined by the slope method. Q i is the slope between 2 datapoints and is determined as follows [34,35]:…”

Section: Sen's Slope Estimator Testmentioning

confidence: 99%

Relationship between Dynamics of Modern Glaciers of the Mt. Munkhkhairkhan (Mongolian Altai) and Climate

Demberel,

Munkhbat,

Dorjsuren

et al. 2023

Water

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Mt. Munkhkhairkhan is the most crucial region for understanding climate and glaciation changes in Mongolia. This study investigated the relationship between glacial area changes and the climate elements of Mt. Munkhkhairkhan in the Mongolian-Altai Mountains using a remote sensing approach, in-situ observations, the Mann–Kendall (MK) test, Innovative Trend Analysis Method (ITAM), Sen’s slope estimator test, and statistical analysis. The study results showed that for the last 30 years, the annual average air temperature of Mt. Munkhkhairkhan has been slightly increasing. Total annual precipitation (mainly snow) in the mountain area decreased from 1990 to 2000, but since 2000, a significant increase in precipitation levels has appeared. For the last 30 years, the glacial area has decreased by 32% to 11.7 km2. Multiple regression results showed a strong correlation between Temperature, Precipitation, and Glaciers (Multiple R = 0.69, R2 = 0.48). Ruther indicated that Temperature (t = −2.332, p = 0.036) and Precipitation (t = −3.212, p = 0.007) were significant predictors in the model. Air temperature and precipitation explained 48 percent of the change in the glacier area, and R = 0.69 is a strong correlation. The glaciers and snow area in the study area have changed due to climate warming and precipitation changes and are located in arid and semi-arid regions of Central Asia. This study of Mt. Munkhairkhan shows that climate change significantly impacts glaciers and snow.

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“…Davaa et al (2018) identified the possibility of assessing water resources of Mongolia's lakes and monitoring them regularly. Their study notes that the water level in the lakes has been steadily declining in recent years, based on ground and satellite data, and have recommended that further research is needed to determine the water resources of Mongolia's lakes [29][30].…”

Section: Lake Research Starting In the 1990smentioning

confidence: 99%

review of modern trends and historical stages of development of lake research in Mongolia

Enkhbold

Khukhuudei²,

Doljin³

2022

Proc. Mong. Acad. Sci.

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There is the need to divide Mongolia's lake research into trends of development stages and to provide a detailed analysis of modern lake research. The aim of this study is to identify the development stages of lake research in Mongolia and to analyse lake research development. This study provides a comparative analysis of the development trends of lake research carried out in the country. The historical development of lake research in Mongolia was divided into 4 stages in chronological order, highlighting the current research direction, scope, and contribution to geography. Since 1990, researchers from many countries have been able to conduct extensive research in Mongolia, and especially since the 2000s, lake research intensified owing to global warming and environmental change. Studies, in particular, focus on paleogeography, paleoclimate changes, lake water regimes and water level fluctuation. Mongolian lake-based studies have tended to identify environmental evolution from the Pleistocene to the Holocene. The investigated areas were primarily Khuvsgul Lake and Darkhad Basin, Lakes Valley and Gobi Lakes, the Great Lake Depression, Mongolian Altai and Khangai Mountain lakes. Since 1990, scientists from Russia, Mongolia, Germany, China, Japan, USA and South Korea have been increasingly focusing on research into lakes in Mongolia. Paleogeographic and paleoclimatic reconstruction, based on the lakes of Central Asia, is being conducted in an innovative manner. Dividing Mongolia's lake research into development stages and identifying research trends will help determine which areas of research can be developed in the future.

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Changes in Water Surface Area of the Lake in the Steppe Region of Mongolia: A Case Study of Ugii Nuur Lake, Central Mongolia

Cited by 15 publications

References 47 publications

A Century of Changes in the Surface Area of Lakes in West Poland

A Century of Changes in the Surface Area of Lakes in West Poland

Relationship between Dynamics of Modern Glaciers of the Mt. Munkhkhairkhan (Mongolian Altai) and Climate

review of modern trends and historical stages of development of lake research in Mongolia

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