Hydrological Features and Geoecological State of Small Rivers in the Polder Territories of the Kaliningrad Region

Zotov, Sergey I.; Спирин, Ю А; Taran, Veronika S.; Koroleva, Yuliya V.

doi:10.17072/2079-7877-2021-3-92-106

Cited by 4 publications

(2 citation statements)

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“…Межсезонная динамика ИЗВ исследуемых рек[10] Fig.2. Interseasonal WPI dynamics of the studied rivers[10] В летний сезон сильная нагрузка на водные ресурсы обусловлена меженью, интенсивной фазой сельскохозяйственных работ и деятельностью живых организмов водной экосистемы. природной активности, что благоприятно влияет на гидрохимическое состояние водотоков.…”

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Geoecological Aspects of Sustainable Development of Polder Lands in the Kaliningrad Region

Спирин¹,

Zotov²

2022

ГВ

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Sustainable development of the Kaliningrad region in the period of modern challenges can be considered a fundamental direction in the region’s development strategy. In this matter, special attention should be paid to the unique natural landscape objects common to the area – polder lands. The purpose of the work is to formulate and study the geoecological aspects of sustainable development of polder lands in the Kaliningrad region. The main research method was conjugated analysis of hydrological, hydrochemical, and geoecological information. The paper provides description of polder lands as complex natural and economic systems. The key hydrological parameters were calculated; the regularities and features of changes in the water regime of the main watercourses of the Slavsky district were revealed. Based on field studies, new sets of hydrochemical characteristics were obtained for four hydrological seasons over 2020–2021 at the control and background monitoring points; the chemical composition and the level of pollution of small watercourses were found. Spatial differentiation of the geoecological state of the basins of small watercourses in the Slavsky district was determined according to 13 criteria, divided into interrelated groups: anthropogenic load, water quality, the territory’s ability to self-purify, and transit capacity. A system of measures was developed to improve the geoecological state of polder lands based on closed biogeochemical cycles of nitrogen and phosphorus compounds in agricultural production and the system of spatially distributed biological treatment of watercourses by higher aquatic and woody vegetation.

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“…Таблица 2Гидрохимическая характеристика водотоков в виде осредненной за 4 сезона кратности превышения ПДК[10] Hydrochemical characteristics of watercourses in the form of the multiplicity of the MPC excess averaged over 4 seasons[10] …”

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Geoecological Aspects of Sustainable Development of Polder Lands in the Kaliningrad Region

Спирин¹,

Zotov²

2022

ГВ

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Assessment of the geoecological state of small water currents in polder lands: methodological approach and cartographic support

Zotov

Spirin

2022

ICIGIS

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The watercourses of the Kaliningrad region are one of the most important natural components with a multi-purpose use. Unfortunately, their geoecological state is assessed as unsatisfactory due to the negative impact exerted on them. The region includes unique polder lands, the watercourses of which are highly vulnerable to negative natural and anthropogenic impacts. These watercourses are poorly researched, in the post-Soviet period they were not actually explored, which led to a lack of information in various scientific and practice-oriented areas. All of the above emphasizes the importance of conducting geoecological studies of the watercourses of the polder lands. The aim of the research is to assess the geoecological state of the basins of small watercourses in the polder lands of the Slavsky District with further cartographic visualization of its spatial differentiation. A methodical approach has been developed to obtain a geoecological indicator represented by a quantitative indicator of polluting chemicals in water, leveling the information deficit, by conjugated analysis of available, but very limited hydrological, hydrochemical and geoecological data. Formulas and calculated dependencies are obtained that allow one to find quantitative characteristics of pollution in the rivers of other polder regions, taking into account the designated limits of application. The spatial differentiation of the geo-ecological state of the basins of small watercourses in the Slavsky District was identified and mapped by 13 criteria, divided into interrelated groups: anthropogenic load, water quality, the territory’s ability to self-purify, transit capacity. The geoecological state of the researched watercourses and their watersheds is characterized as “highly stressed”: for the river. Osa—“very tense” (3.95 % of the land); for r. Zlaya—“tense” (5.93 % of land); in the basins of the Shlyuzovaya and Nemoninka rivers—“conflict” (38.96 % of land), the rest of the area—“highly stressed” (51.16 % of land).

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Evaluation of spatial features of pollution of rivers in the south-eastern part of the Kaliningrad Region

Spirin,

Zotov,

Taran

et al. 2023

ICIGIS

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The rivers of the south-eastern part of the Kaliningrad region: Angrapa, Pissa, Krasnaya, Russkaya are highly vulnerable to natural and anthropogenic impacts, have the first and highest category of fishery purposes, and are distinguished by their transboundary status. Monitoring of the ecological state of watercourses is fragmentary and does not meet modern requirements. In connection with the noted features, they are of great interest for research. For each watercourse, 4 points were identified from the headwaters to the mouth, in which hydrological parameters were measured in the autumn hydrological season and water samples were taken for chemical analysis. The multiplicity of exceeding the MPC for a large list of chemical elements was calculated, the WPI and the corresponding class of water quality in the studied rivers were determined. Mapping was carried out and spatial differentiation of the WPI, the multiplicity of exceeding the MPC for dissolved oxygen, BOD5, nitrites, ammonium, iron, oil products was revealed. The results of the study showed that the water quality in the studied rivers is in an unsatisfactory state. The identified spatial pollution is formed in the traditional way—the quality of water from the source to the mouth is deteriorating. The main indicator that contributes to the pollution of watercourses is oil products, which emphasizes the potential anthropogenic impact (the multiplicity of exceeding the MPC varies in a wide range—from 2.80 to 124.60 (for all samples)). Sharp changes in this indicator occur after watercourses pass through large cities by the standards of the study area. In second place is the iron index, which makes a serious contribution to the overall picture of pollution (excess ratios for iron—from 1.94 to 48.49 (for all samples)), which is due to the high concentrations of this ingredient in the groundwater that feeds the rivers. Biogenic pollutants represented by ammonium and nitrite are evenly distributed, which is presumably due to their agricultural origin (from 1.12 to 11.28 times for ammonium [for 5 out of 16 samples] and from 1.38 to 7.38 for nitrite [for 7 out of 16 samples]).

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Hydrological Features and Geoecological State of Small Rivers in the Polder Territories of the Kaliningrad Region

Cited by 4 publications

References 1 publication

Geoecological Aspects of Sustainable Development of Polder Lands in the Kaliningrad Region

Geoecological Aspects of Sustainable Development of Polder Lands in the Kaliningrad Region

Assessment of the geoecological state of small water currents in polder lands: methodological approach and cartographic support

Evaluation of spatial features of pollution of rivers in the south-eastern part of the Kaliningrad Region

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