Current Geo-Ecological Problems Within the Lake Khanka Drainage Basin

Baklanov, P. Ya.; Kachur, Anatoly; Ermoshin, V. V.; Kozhenkova, S. I.; Махинов, А. Н.; Bugaets, A. N.; Bazarova, V. B.; Kim, V. I.; Шамов, В. В.

doi:10.1134/s1875372819040048

Cited by 5 publications

(4 citation statements)

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“…The literature offers different points of view on the causes of the water level rise, provides forecast estimates of further dynamics, and formulates measures to regulate the lake level (Bortin & Gorchakov 2016, Georgievsky et al 2017, Bolgov & Arefieva 2019, Zuenko et al 2020, Bolgov & Korobkina 2022, Kolomiets et al 2022. Scientific discussions organized to address the whole set of geo-ecological problems in the Lake Khanka basin (Zhuravlev & Klyshevskaya 2016, Zhuravlev et al 2018, Baklanov et al 2019) emphasize the need for integrated research and international monitoring to ensure sustainable environmental management. The im por tance of long-term monitoring of the high level of Lake Khanka was pointed out in a recent publication on the Khanka Reserve (Kozhenkova et al 2022).…”

Section: р е з ю м еmentioning

confidence: 99%

“…The current shape of the Lake Khanka shore is closely related to the history of the lake formation in the periods of climatic shifts, changes in river channels and the nature of accumulation. On a historical time scale, it becomes evident that water levels rise during periods of lake transgression and fall during periods of regression, which in turn were associated with climate warming and cooling, respectively (Baklanov et al 2019, Bazarova et al 2022. The description of sedimentary rock layers com po sing the coastal formations suggests that the lake in its pre sent form began to form in the second half of the middle Holocene (Pavlyutkin & Hanchuk 2002, Bazarova et al 2018.…”

Section: Causes Of Water Level Rise In Lake Khankamentioning

confidence: 99%

“…Seismic processes may also be responsible for changes in the shoreline and water level of the lake (Baklanov et al 2019). In 1967, an earthquake occurred near the lake, with ground shaking in Spassk-Dalniy reaching magnitude 6 on the MSK-64 scale (Kolomiets et al 2022).…”

Section: Causes Of Water Level Rise In Lake Khankamentioning

confidence: 99%

“…However, fluctuations in the lake water level also occur through out the year, which is related to the amount of pre ci pi ta tion in different seasons, evaporation of moisture from the lake surface, and as a result of wind denivelations. Wind tides, similar to seiches caused by atmosphe ric pressure fluctuations in different parts of the lake, reach 0.5-0.6 m, and even 1.5-1.6 m at wind speeds of more than 30 m/s (Vas'kovsky 1978, Bortin & Gorchakov 2016, Georgievsky et al 2017, Baklanov et al 2019.…”

Section: Causes Of Water Level Rise In Lake Khankamentioning

confidence: 99%

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Variations of plant communities in diversity and composition along the western coast of Lake Khanka caused by high water level

Marchuk,

Kvitchenko,

Kislov

et al. 2023

Bot Pac

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Lake Khanka is the largest freshwater body of water in northeast Asia, with a basin of about 25 000 km2. The hydrological regime of the lake is cyclical in nature due to various factors affecting water inflow and outflow. The last increase of water level in the lake began in the 2000s and by 2015 reached the maximum value of 416 cm (with the average annual level of 293 cm). A steady decline in water level has been observed since 2021. To assess the diversity and structure of coastal plant communities on the sandy-pebbly substrate along the western shore of Lake Khanka and their dynamics under the influence of flooding, we laid 20 transects and performed descriptions at seven sites, including two sites in the protected area of the Cluster Sosnovy of the Khanka Nature Reserve. Using the diversity and similarity/difference indices, plant communities were compared across the sites. It was shown that their heterogeneity is due to the diversity of both aboriginal and adventive species. In protected areas, the role of adventive species is significantly lower than in recreational areas. The five dominant species in the communities account for 50 % or more of the total abundance. Vegetation groupings in the three identified zones, which have been inundated for different periods of time, have a similar diversity, with differences due only to the native fraction of species. The second zone, characterized by the greatest influx of species of different ecological and cenotic groups during water recession, differs in species richness. The obtained data show for the first time the diversity and structure of coastal plant communities of the sandy-pebble beech of the western coast of Lake Khanka and reflect some processes of its dynamics in connection with the long-term standing water. For more successful coverage of the issues raised, long-term monitoring on the laid transects, at least covering one 20–30-year cycle of the dynamics of the hydrological regime of Lake Khanka, is necessary.

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Section: р е з ю м еmentioning

confidence: 99%