ВступІн те рес до вив чен ня Сeratophyllum tanaiticum Sapegin ви зна ча єть ся на сам пе ред не дос тат ні ми ві до мостя ми про його аре ал і особ ли вості по ши рен ня на території України (наведений для Лівобережжя, півдня країни та Криму) (Dubyna et al., 1985;Chorna, 2006), у Східній та Центральній Європі, Західному Казахстані, на Кавказі (Tzvelev, 2001. Наразі в літературі трапляються дещо суперечливі висновки щодо його розповсюдження. Вид характеризують і як понтійськокаспійський, і як реліктовий причорноморський ендемік, і як кавказькосхідноєвропейський (Dubyna et al., 1985;Les, 1986; Tzvelev, 2001), а за найновішими даними він виявлений і в Угорщині (Csiky et al., 2010). Таким чином, пос тає пи тан ня про тип його ареа лу та су час ний ха рак тер по ши рен ня на те ри то рії Ук ра ї ни. Ок рім цьо го, з ог ля ду на рід кіс ність цього виду та не об хід ність його охо ро ни, до сить важ ли вим є до слі джен ня особ ли востей ре про дук ції, біо ло гії, фі то це но ло гії в умо вах кон крет них міс цез ростань. Schevchyk V.L., Solomakha I.V., Solomakha V.A. Ceratophyllum tanaiticum (Ceratophyllaceae) inlakesoftheSupіyRiverDelta (MiddleDniproarea).Ukr. Bot. J., 2017, 74(4): 355-359.Abstract. A rare relict species, Сeratophyllum tanaiticum, was found in three lakes during surveys of floodplain vegetation in the lower reaches of the Supіy River (Cherkasy Region, Ukraine). These lakes are located on the left bank of the Supіy River, near its confluence with the Dovhun River, which is actually one of the former riverbeds of the Dnipro River. The studied area is represented by floodplain complexes formed by segments of the old floodplain, terrace depressions nearby and upland terrace. There are many small (less than several ares in area) bayou lakes, filled with water during floods, which due to special character of underlying surface (fascia of finegrained sand and loam) dry out very slow during periods of low water levels in late summer and autumn. The localities of С. tanaiticum, where it plays a role of codominant and assectator in hydrophyte communities, represent habitats of little overgrown drying eutrophic reservoirs with organogenic benthic sediments. Plant communities featuring species identify relatively clean reservoirs. Ensuring sufficient water level in specific reservoirs -drying bayou floodplain lakelets -in the first half of vegetation season may be considered as the main conservation measures for С. tanaiticum.

A number of studies were undertaken in the territory of the “Syrovatka river basin of the Emerald Network of Ukraine (UA0000428 Syrovatka river basin). Based on the data gathered from field work surveys of the area, the characteristics of the habitats (C1.222, C1.224, C1.32, C1.33, C2.33+, С2.34, C3.4, C3.51, D5.2, E1.2, E2.2, E3.4, E5.4, F3.247, F9.1+G1.11, G1.21+G1.41, G1.A1, G1.7, G1.8, G1.A4) are presented according to the area covered and their ecological features. Phytosociological characteristics of habitats were given. As a result of the analysis of the distribution of certain species of sozophytes, a brief description of the status of the identified populations was presented. Populations of vascular plant species protected in Europe (Ostericum palustre, Iris hungarica), Ukraine (Epipactis helleborine, Lilium martagon, Platanthera bifolia), and at the regional level (Carpinus betulus, Campanula persicifolia, Calla palustris, Dryopteris cristata, Inula helenium, Utricularia vulgaris) have been studied in detail. The main threats to the existence of the natural complex of this area, which may appear in the situation of increasing economic impact are drainage and ploughing of floodplains, terracing, and afforestation of meadow-steppe slopes of the ravine. The typological characteristics of artificial and natural forest plantations of the territory were described based on the generalization of details gathered from information on their local management.

To ensure the maximum protection of agricultural crops from climatic factors unfavorable for their growth and development, it is necessary to create an optimal number of field protection forest strips. In particular, for the Forest-Steppe zone of Ukraine, less than half of the optimal needs are available, which indicates an urgent need for their additional creation. The expediency of creating fast-growing and multifunctional field forest strips is substantiated, and the productivity of new bioenergy crops during their formation for use in beekeeping and as biofuel is determined. For this purpose, a model of the artificial formation of a forest strip with its possible further exploitation is proposed. The most optimal one is to develop the concept of creating field forest strips with the use of multifunctional tree species, which, in addition to the function of wind, water and dust retention, will also perform other economic tasks. In particular, along with their intended purpose, they can be used as raw materials for biofuel production and as early honey plants. For the accelerated creation of field protection forest strips, it is advisable to use mixed 6–8- row plantings, where the middle 2–3 rows are planted with the involvement of tree species, including the use of species valuable as raw materials for beekeeping. These forest strips are complemented on both sides by planted strips of energy crops, which are important for beekeeping and are a valuable resource for obtaining fuel raw materials. For this purpose, it is advisable to plant 10–12 thousand pieces on one hectare poplar cuttings (Populus sp.), 1250 pieces of paulownia plants (Paulownia tomentosa Steud.) with a row width of 2×4 m and 17–18 thousand pieces cuttings of energy willow (Salix viminalis L.). It is also possible to replace part of the poplar cuttings with cuttings of common robinia (Robinia pseudoacacia L.) and linden (Tilia cordata Mill.). The creation of such plantations near settlements will contribute to their significant use of raw materials and will be quite effective in carrying out their main function of ecological stabilization of agro-landscapes.

To provide the beekeeping industry with honey lands it is important to have a significant variety of natural and cultivated raw materials in a particular region. In this regard, promising honey products are artificial and natural forest plantations, which are widespread in the Middle Forest-Steppe of Prydniprovia, due to the significant participation of a wide range of honey plants. We primarily analyzed the participation of nectar- and pollen-bearing plants from the list of tree and shrub species of forest plantations in this area. For this purpose, forest management materials were used, the total area of forest plantations in this area is 251341.3 ha, of which 245209.7 ha (97.56%) are nectar- and pollen-bearing plants. Thus, Robinia pseudoacacia (26406.0 ha, 10.51%) and Tilia cordata (1868.8 ha, 0.74%) are the main raw material species of the forest-forming species, which includes 54 species of woody and shrubby honey plants. They provide the main productive honey harvest from natural honey plants. In addition, other species were found in the plantations (Pinus sylvestris (116592.9 ha, 46.39%), Quercus robur (60049.7 ha, 23.89%), Fraxinus excelsior (7835.5 ha, 3.12%) etc.), which can be sources of medical collection of small amounts of nectar and pollen. Forest plantations with available species of woody, shrubby and herbaceous plant species are valuable as raw materials for beekeeping. As a result of the analysis of the raw material value of forest lands by forest types in the ecological conditions of the Middle Forest-Steppe of Prydniprovia, out of 62 forest types distributed in the study area, 8 most valuable lands were identified. These include fresh hornbeam (32871.8 ha, 13.08%) and maple-linden oak wood (15144.4 ha, 6.03%), hornbeam oak wood (9034.3 ha, 3.71%), dry maple linden (12810.9 ha, 5.10%) and hornbeam (3585.2 ha, 1.43%) oak wood, fresh (2056.4 ha, 0.82%) and moist (1410.4 ha, 0.56%) linden-oak-pine sugrud, moist maple-linden oak wood (714.8 ha, 0.28%). This block of tree and shrub species of forest ecosystems does not take into account the phytodiversity of field protective forest strips of this area, but this complex of species is a promising source of nectar and pollen.

The paper presents the results of the research of local population of Anacamptis morio (L.) R. M. Bateman on the territory of the Left-Bank Ukraine. The size of this population was estimated at about 250-300 thousand individuals. The average density of individuals per 1 m2 is 12, while in terms of age structure, dominate individuals in the generative stage (70-75%). A. morio inhabits fresh, forest-meadow biotopes. Its populations are found in fresh eutrophic and moist mesotrophic meadows and in coastal floodplain forests. This species is a part of vegetation of the Koelerio-Corynephoretea and Molinio-Arrhenatheretea classes. Considering the characteristics of the investigated A. morio population and its habitat we assert that the studied territory is unique, valuable and perspective for the creation of a nature reserve.