Ivankiv District Research Articles

KOVALENKO GRIGORY SAMIYLOVYCH – A LEADING SCIENTIST IN ANIMAL SELECTION

Kovalenko Hryhoriy Samiylovych was born on October 5, 1946 in the village of Fedorivka, Ivankiv district, Kyiv region, in a peasant family. From 1961 he studied at the Kozelets Zooveterinary College of the Chernihiv region, graduating in 1965 with a degree in zootechnics. In 1973 he graduated from the Ukrainian Order of the Red Banner of Labor Agricultural Academy with a degree in zootechnics.
 He began his career on January 19, 1966 at the Central Research Station for Artificial Insemination of Farm Animals (Brovary city). He worked as a technician for artificial insemination of cows and heifers, a technician for collecting semen of bulls, a brigadier of the dairy farm, a senior zootechnician for testing breeding bulls, a senior zootechnician of the breeding department.
 From January 1976 he worked at the Ukrainian Research Institute of Breeding and Artificial Insemination of Cattle as a junior researcher, researcher, senior researcher, head of the sector of bulls assessment.
 In 1999 he defended his dissertation "Comparative assessment of animals of the Ukrainian Black-and-White Dairy breed with analogues of foreign breeds" in the specialty 06.02.01 – breeding and selection of animals. He received the degree of Candidate of Agricultural Sciences, as well as the academic title of Senior Researcher. Works at the Institute of Animal Breeding and Genetics named M.V.Zubets of the National Academy of Agrarian Sciences of Ukraine as a leading researcher in the Department of Cattle Breeding.
 The main direction of the scientist's research is the theory and practice of the breed-forming process, the formation of structural units of dairy breeds (intra-breed and factory types, lines, families, herds). Works on the improvement of Ukrainian Black-and-White, Red-and-White Dairy and Simmental breeds and the creation of highly productive herds.
 He has published 106 scientific papers, including 10 guidelines. G. S. Kovalenko is a co-author of nine structural units of the Ukrainian Black-and-White Dairy breed, in particular the Central-Eastern intra-breed and Kyiv factory types, factory lines of M. Montfrech, S. S. Suddin, Astronaut and Elbrus (order № 127 of the Ministry of Agriculture of Ukraine from 26.04.96), as well as the Southern intra-breed, Pre-Dnistrian and Pre-Dnieper factory types (order № 519/89 of the Ministry of Agrarian Policy of Ukraine from 29.09.2005). The scientist is a co-author of 22 selection programs and plans in Lviv and Kyiv regions, Boryspil and Berdychiv districts and farms of different regions of Ukraine and others. Actively implements nationwide breed improvement programs, in particular, "Breeding programs for Ukrainian Black-and-White Dairy breed for 2003–2012", "Ukrainian Black-and-White breed breeding programs for cattle for 2013–2020". Actively promotes scientific knowledge among dairy professionals.
 The staff of the department sincerely congratulates the jubilee, wishes him good health and creative longevity.

Current radiological situation in areas of Ukraine contaminated by the Chornobyl accident: Part 2. Strontium-90 transfer to culinary grains and forest woods from soils of Ivankiv district

Some of the highest 90Sr activity concentrations recorded beyond the Chornobyl Exclusion Zone occur in the Ivankiv district of Ukraine, located approximately 50 km south of the power plant, an area which nonetheless remains important for agricultural production. Although characterized by soils with low exchangeable calcium values, which can enhance the bioavailability of certain radionuclides, information on the transfer of 90Sr to food crops and trees in the region has remained limited to date. Analysis of 116 grain samples (wheat, rye, oat, barley or Triticale) collected from fields in 13 settlements in the region between 2011 and 2019 revealed 90Sr and 137Cs activity concentrations above Ukrainian limits in almost half of those samples, with annual averages exceeding this limit in four of those nine years (most recently in 2018) and with no clear evidence for a declining trend over time. Analysis of paired sandy soil samples from the same fields yielded concentration ratios for transfer of 90Sr from soils to grains that were on average 3 times higher than that specified by the IAEA. In addition, three quarters of wood samples collected from the trunks of trees (primarily pines) from 12 locations in the same district between 2015 and 2019 contained 90Sr activity concentrations in excess of the Ukrainian limits for firewood (60 Bq/kg), with levels more than four times that limit at one location and again no evidence for decline over time. A single sample of ash collected from a domestic wood-burning oven in the district contained 90Sr at a level 25 times higher than in the most contaminated wood sample collected in this study. Overall these results reveal additional facets of the ongoing legacy of Chornobyl contamination within the Ivankiv district, and the diversity of pathways by which local residents may be exposed to radionuclides. They also highlight the dangers associated with the current lack of routine and comprehensive environmental and food monitoring programs within the region, especially at a time in which the use of locally-sourced wood for biomass energy generation is set to expand markedly.

Eurasian Pygmy-owl Glaucidium passerinum in Ukrainian Polissia

Background. The Eurasian Pygmy-owl Glaucidium passerinum (Linnaeus, 1758) is a rare and poorly studied species in Ukraine. It is listed in the Red Data book of Ukraine [2]. Its breeding locations can be found in the Carpathians, Roztochia and Polissia. There are insufficient data the on distribution and current state of abundance of Eurasian Pygmy-owl as well as breeding biology of the species on the territory of Polissia. Materials and Methods. The published data, internet sources, and unpublished materials of colleagues were used in addition to our own observations. Special studies were conducted on permanent study sites in Polissia Nature Reserve (Olevsk and Ovruch districts, Zhytomyr region) and Desniansko-Starohutskyi National Nature Park (Seredyno-Buda district, Sumy region). Small expeditions were organized to other locations within Polissia. Studies of this species were conducted in conjunction with the study of other owl species. They included surveys, behavioral observations, and eco­logy studies. During the surveys, the registrations on the routes of natural voca­lization of adult owls were made at twilight and at night; in cases when natural vocali­za­tion was absent, the recordings of mating calls of males and females were played [1]. The maximum distance of species registration by calling (500 m) was used for breeding density estimation. Results. During the breeding period, the Eurasian Pygmy-owl was found in all regions of Polissia. The southern boundary of that area lies near the villages Perebrody, Dubrovytsia district [12] – Karasyn, Sarny district [12] – Kochychyne, Yemilchyn district – Lypnyky, Luhyny district – Velyki Klishchi, Narodychi district – Stavrovka, Ivankiv district. The second site of regular breeding is the territory of Desniansko-Starohutskyi National Nature Park, where the species has been detected since 1996 [13]. For the first time, on the territory of Polissia, two nests in Zhytomyr and Sumy regions were found. For the first time in Ukraine, the clutch was measured. Behavioral observations of owls in breeding sites were conducted. Food remains were collected and identified. Conclusions. The Eurasian Pygmy-owl is a breeding species in Ukrainian Polissia. The average breeding density in Polissia is 5.8 pairs/100 sq. km. The permanent bree­ding range was identified; it covers the northeastern part of Rivne region, the northern part of Zhytomyr and Kyiv regions, the northeastern part of Chernihiv region and the northern part of Sumy region, on the area of 18.1 thousand sq. km. The estimated bree­ding population of this species is 330 pairs. During the mating season, there are two peaks of natural 24-hour vocalization activity: in the evening and morning twilight. In the evening, males often begin to call 30 min after sunset, in the morning – 30 min before sunrise. In the autumn-winter period, birds either stay within their breeding areas or migrate, flying outside the breeding habitats. The increase in the number of registrations is due to special surveys taking into account the narrow interval of 24-hour natural vocalization acti­vity in the twilight period and the use of phonogram reproduction techniques. Keywords: Eurasian Pygmy-owl, breeding, abundance, behavior, Polissia, Ukraine

POLESYE HORSE: HISTORY OF ORIGIN AND CURRENT SITUATION

POLESYE HORSE: HISTORY OF ORIGIN AND CURRENT SITUATION

COMPREHENSIVE RADIOLOGICAL AND HYGIENIC MONITORING OF PARTICULAR SETTLEMENTS OF KYIV REGION IN 2019.

to identificate the main factors and assess their impact on the formation of radiation doses to the population of radioactively contaminated areas of Kyiv region at the current stage of the accident based on complexradiation and hygienic monitoring in the reference settlements in 2019. Comprehensive radiological and hygienic monitoring was carried out in eight settlementsof Kyiv region - villages of Ragivka, Lygovyky, Mar'yanivka, Zelena Poliana of Polis'kyi district and villages ofHornostaipil, Dytiatky , Pisky, Karpylivka of Ivankiv district. The content of incorporated 137Cs was determined withdirect measurement on whole body counters (WBC) samples of basic foodstuffs were collected to determine the content of radionuclides 90Sr and 137Cs, residents were interviewed about the levels of consumption of these products,and work was performed to estimate external radiation doses. Mathematical, dosimetric, radiochemical methods areused in the work. There was a further decrease in annual doses of internal radiation in the surveyed settlements in 1.3 times, bothin Polis'kyi district (0.041 mSv · year-1 in 2016, 0.030 mSv · year-1 in 2019) and in Ivankiv district (0.023 mSv · year-1in 2016, 0.018 mSv · year-1 in 2019). It is possible to state a slowdown in the reduction of radiation doses comparedto previous years: from 2010 to 2013, the annual doses of internal radiation in the surveyed settlements decreasedby 1.8-2.4 times, from 2013 to 2016 - by 2.3-3.6 times. The content of 137Cs and 90Sr in milk and potatoes in theinspected settlements is lower than the permissible level of the Hygienic Standard HS 6.6.1.1-130-2006 and the useof these foods can not significantly affect the formation of the internal radiation dose. The content of 90Sr in milksamples in the settlements of Ivankiv district is in the range of 2.1-9.9 Bq · kg-1 (in 2016: 1.3-7.4 Bq · kg-1), whichdoes not exceed the permissible level of 20 Bq · kg-1, but due to the dynamics needs further monitoring. The content of 137Cs in samples of dried mushrooms collected from residents of Kyiv region in 2019, as in previous years, issignificantly (up to 100 times) higher than permissible level, and has a high uncertainty - from 1.4 kBq · kg-1 to223.7 kBq · kg-1. It is established that the annual effective radiation doses of the population in the surveyed settlements in the current year are formed due to internal radiation doses that do not exceed 0.46 mSv · year-1 in Ivankivdistrict and 0.51 mSv · year-1 in Polis'kyi district, which below the RCT criterion 1 mSv · year-1. The main factor that forms the dose of internal radiation of the residents of the surveyed state of emergency of Kyiv region is the intake of 137Cs in the body with forest products, primarily mushrooms.

Environmental behaviour of radioactive particles from chernobyl

Long-term environmental behaviour of radioactive particles released during the Chernobyl accident and deposited in sandy topsoil in Ivankiv district of Kyiv Region (Ukraine), in radioactive trench waste materials from the Red forest, and in bottom sediments from the Cooling pond has been assessed. The efficiency of the models describing the dissolution/weathering rates of U fuel particles developed 15–20 years ago was tested, and their predictions for the dynamics of remobilization, mobility and plants uptake of 90Sr were confirmed.It was found that at present in the topsoil and in radioactive trench waste material, total dissolution of fuel particles of low chemical stability (UO2+x) has occurred and about half of the non-oxidized chemically stable fuel particles (UO2) has also dissolved, indicating radiological stabilization of the environment and that the mobile fraction of radionuclides would be reduced in the future. The biological availability of 90Sr in topsoil due to fuel particles dissolution has reached maximum values and further decrease is expected.The presence of chemically extra-stable fuel particles (U-Zry-Ox) in environments should be taken into account when the total radionuclides activity concentrations are assessed during radioactive materials management.It was shown that nearly half of the 90Sr activity remained as part of the non-dissolved UO2 fuel particles at the time of the study. Taking into consideration that 31 ± 4% of the radionuclide activities were still associated with non-dissolved chemically extra-stable particles (U-Zry-Ox) in radioactive trench waste materials from the Red forest, increased dissolution should not be expected in the near future.The physico-chemical form of radionuclides in air exposed sediments from the Cooling pond were determined, and results showed that about 70–80% of total 90Sr, 241Am and plutonium isotopes activity were associated with U fuel particles. The low dissolution rate of radionuclides from the pond sediments is attributed to prolonged slightly alkaline pH in the medium due to zebra mussel residues.According to new data, the emission value of 238Pu associated with fuel particles released during the Chernobyl accident amounted to 1.8 × 1013Bq (1.2% of the activity in the reactor) and 90Sr amounted to 2.6 × 1015Bq (1.5% of the activity in the reactor).

INVESTIGATIONS OF THE MULTILAYER SITE IVANKIV 3 IN 2014—2015

The paper deals with publication of the results of investigations of the object of the second half of 13th — early 14th centuries on the multilayer site Ivankiv 3 situated in Ivankiv district of the Kyivan region. Northern districts of Kyivan Polissia are archaeologically little known ones. Since 2013 the archaeological investigations have been carried out there by the authors. During last 5 years 25 monuments were inspected. The settlement Ivankiv 3 is distinguished among them. It is multilayer monument in the flood-lands of the Teteriv river left bank, among Zaprudka village and Ivankiv town. It is situated on the dune hill. The authors found flinty tools of the Mesolithic—Neolithic, ceramics of the Bronze and the Early Iron Ages, the 11th—12th and 16th—17th centuries on the settlement area. However the rectangular shaped object of the second half of 13th — early 14th century excavated in the years 2014—2015 is the most interesting. It was 3.1 Ч 1.8 meters long and 0.95 meter deep. Perhaps it was household building crushed by a fire. It was filled with black soil mixed with carbons, fired clay and animal bones. There were a number of materials in the object. Ceramics is presented by pots mainly. The shapes of their rims are of the post-Mongolian period. Some of them are with spots of glaze that demonstrate a glaze production at that time. There are also fragments of bowls, covers and brown glazed jugs. Among other materials there were a small spin-wheel of pyrophyllite and fragments of that mineral, iron hook, two bits of glass bracelets and two grindstones. The animal bones from the object belonged to 5 pigs, 2 goats / sheeps, a cow, 2 beavers and a fish. The slags of iron production were found on the area as well.
 The investigation of the site is very important to study the regional history in the post-Mongolian period.

Territorial features of the water-resource potential of Kyiv region

Territorial features of the water-resource potential of Kyiv region

ERECHTITES HIERACIFOLIA (L.) RAF. EX DC. (ASTERACEAE BERCHT. & J. PRESL) – НОВИЙ ВИД АДВЕНТИВНИХ РОСЛИН ДЛЯ ФЛОРИ КИЇВСЬКОГО ПОЛІССЯ

Information about floristic record of Erechtites hieracifoliа (L.) Raf. ex DC. (Asteraceae Bercht. & J. Presl) at the territory of the Chernobyl Radiation and Ecological Biosphere Reserve and National Nature Park "Нolosiivsky", new for the Kyiv Polyssia alien species was presented. This species has north american origin, according to the time of arrival it is kenophyte, according to the skidding method – xenophyte, on naturalization level – kolonophyte. Firstly in the region of study this species was collected in 2018 in vicinities of former village Ilovnitsa (northern part of the village) of Ivankov district of Kyiv Oblast. Later, in 2019 E. hieracifoliа was noted in two another sites of biosphere reserve (vicinities of former village Klyvyny of Ivankiv District, Kyiv Region and former village Kamianka of the same administrative units). Total revealed more than 60 species plants, in vegetative state (prevailed) and also in generative state. Plants were noted sporadically on forest edges and roads in composition of unformed plant communities. In 2019 this species was also found on the territory of National Naturе Park "Нolosiivsky" (Sviatoshin-Bilychі branch) where individuals of the species were found singly or in small groups (5–10 plants). In total, 60 plants of E. hieracifoliа were noted here. Probably they came to the study region recently – some years ago, skid occurred on high roads which plants used as wind corridors flanked by forests, and also on local ways; it is possible that diaspores distribution is carried out also by birds. Schematic map of species distribution in the region was presented. Data about primary and secondary areas of the E. hieracifoliа, its ecological and coenotic peculiarities were presented. The main stages of history of skidding and further distribution of the investigated species in Ukraine were reconstructed; the main directions of it distribution is connected with northern and western regions of the country. Currently, the species tends to actively spread into another regions of Ukraine. In Europe it belongs to invasive species and demands control of spread.

Main internal dose-forming factors for inhabitants of contaminated regions at current phase of the Chernobyl nuclear power plant accident (Kyiv region as an example)

Objective of this work is revealing of main dose forming factors of internal doses for inhabitants of contaminated regions of Kyiv region relying on the results of integral dosimetric monitoring. Three villages have been chosen for the investigation. They are: Raghivka, Zelena Poliana (Poliske district), Karpylivka (Ivankiv district). Twice a year, in May and in October those villages' residents were inspected for content of incorporated 137Cs. They were measured by direct method at the place of residence with the help of whole body counters (WBC). The principal food samples were collected for detection of 90Sr and 137Сs content. Those villages' inhabitants were interviewed about food consumption levels. Mathematical, dosimetric and radio chemical methods were used in this workResults and conclusions. The estimation of internal doses due to intake of 137Cs by ingestion of milk and potatoes are in the range 0.3-34% of doses estimated on the base of WBC data. The contribution to the dose of internal expo sure from intake of 137Cs with the milk consumption is no more than two times higher than the contribution of pota toes consumption in the case of equal consumption levels of these products. Contributions to the dose of internal exposure from intake of 90Sr with milk and potatoes consumptions are approximately similar. Consumption of mush rooms and other wild nature products by inhabitants from the inspected settlements is the main forming factor of internal dose due to 137Cs intake.