Measuring, modelling and managing gully erosion at large scales: A state of the art

Earth-Science Reviews, Journal Year: 2021, Volume and Issue: 218, P. 103637 - 103637

Published: April 21, 2021

Language: Английский

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Morphological and functional diversity of floodplain water bodies and their classification according to the structure of the surrounding vegetation cover

Biosystems Diversity, Journal Year: 2024, Volume and Issue: 32(1), P. 60 - 72

Published: Feb. 4, 2024

The study identified the indicators of functional and morphological diversity Dnipro River floodplain water bodies within Dnipro-Orilsky Nature Reserve. database recorded reserve consists 302 objects. total area close to it is 24.2 km2, 6.03 km2. Thus, cover 24.9% area. channel system account for 17.9% number in Reserve 71.4% projection are located at a distance up 3.2 km from main River. average 1.50 ± 0.04 km. closest those riverbed, which were formed as result creation reservoir floodplain. Three factors with eigenvalues greater than unity extracted factor analysis morphometric features bodies. These three explain 85.8% cumulative correlation features. Factor 1 reflects latent variable that can be size ponds. was largest Orilsky Canal, slightly smaller sizes channel. smallest Obukhivka system. 2 level shoreline development. According this indicator, different systems did not differ. 3 altitude variability relief surrounding lowest values Canal higher Taromske Mykolaivka systems. highest levels its characteristic areas Cluster allowed us identify seven clusters relatively homogeneous terms differentiated based on results discriminant analysis. An important aspect differentiation bodies, development shoreline, height terrain correspond well types selected their orientation relative preferred direction flow. satellite image classification used 15 vegetation reserve. characterized by specific spectra plant communities surroundings. cluster resulted nine structure complexes them. Each contains entire list have been established ecosystems. peculiarity lies ratio between types. most structural distinguish projective oaks, meadows, shrubs. At top hierarchy, meadows. lower level, sands or oaks. basis features, respect prevailing flows, each other certain extent.

Language: Английский

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The interpolation of cadmium in soils of an urbanized territory of the steppe Dnieper region using geoinformation modeling methods

Biosystems Diversity, Journal Year: 2018, Volume and Issue: 26(2), P. 145 - 152

Published: May 11, 2018

We collected data on the content of gross and mobile forms cadmium in genetic horizons main types soils steppe Dnieper region anthropogenically contaminated landscapes (for instance, city Kamianske). The distribution are shown laterally radially. highest concentration is noted for profiles 1 to 6, particular a root-saturated ground horizon (up 50 cm). For soil located at depth 50–150 cm, there slight excess (4–6 mg/kg) mean (2–4 all urban systems. Minimal concentrations observed along profile 25–29 mg/kg), but anomalous excesses intersections major highways, which characteristic arranged profiles. each araigned usually duplicates situation heavy metal content. ArcGIS Spatial Analyst's software capabilities assessing ecological status Kamianske according demonstrated study. results interpolation (gross forms) territory corresponding given. According conducted simulation, it has been established that almost entire eastern part (east 6) characterized by form range 3 4 mg/kg, except wooded ravine Vodyana, within territorial boundaries values 2 mg/kg forecast, as well southern central parts city. measurements indicates abnormal zone gradually decreasing area, however, maintains maximum city's territory.

Language: Английский

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The influence of forest vegetation on the physical properties of chernozems in the steppe zone of Ukraine

Biosystems Diversity, Journal Year: 2024, Volume and Issue: 32(1), P. 3 - 11

Published: Jan. 31, 2024

Targeted changes in the physical properties of soils, including through afforestation, are an important component land use practices that aimed at obtaining sustainable crop yields, which is especially for potentially highly fertile chernozem soils. The ordinary chernozems under steppe vegetation (used as a control) and plantings Robinia pseudoacacia L. Quercus robur L., well luvosol natural forest vegetation, were studied field, laboratory conditions using soil samples taken from 12 areas established within Dnipropetrovsk region (Ukraine). As result study, it was luvic classified silty loam according to their granulometric composition. growth acacia oak plantations led increase sand content decrease silt content, contributed clay black influence on 0–20 cm layer aggregates fractions > 2 mm water-resistant 0.5 < 1 compared vegetation. caused density solid phase, total porosity layers 20–40 cm. available water plants permeability Ordinary characterized by increased electrical resistivity, reduced resistivity dielectric constant chernozems. leads more pronounced plantings.

Language: Английский

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Which index is better for assessing the success of reclamation: Naturalness or hemeroby?

Biosystems Diversity, Journal Year: 2023, Volume and Issue: 32(1), P. 30 - 42

Published: Dec. 30, 2023

The destruction of soil and vegetation caused by mining, if not prevented through careful planning, is usually extreme, as the original ecosystems have been grossly disturbed or buried in mining process. A radical reconstruction therefore necessary. In nature, this happens well-known processes primary succession, without human intervention. interests economy preservation our natural resources, reclamation should try to involve same processes. When planning reclamation, it crucial clearly define goals, objectives success criteria allow for systematic reclamation. need methods assess effectiveness achieving environmental social goals increasing, especially agricultural land be restored. Over time, may modified depending on direction succession. mined areas requires application monitoring tools understand achievement potential success. This problem can solved studying biodiversity plant communities factors habitats industrialized post-mining landscapes. Thus, territories industrial activities planned with correct trajectory restoration process, so indicators that used monitor article tests following hypotheses: 1) dynamics process monitored using indices naturalness hemeroby; 2) at initial stages hemeroby index has an advantage due its greater sensitivity range anthropogenic transformation levels. community formed a result spontaneous growth sites was represented 70 species vascular plants. projective cover 22.0 ± 0.30%. one test plot, 8.4 0.1 were found. analysis synoptic phytosociological table revealed site nine associations from classes Artemisietea vulgaris Stellarietea mediae. averaged 85.0 0.22. lowest level found within Cirsio-Lactucetum serriolae association. average Medicagini lupulinae-Agropyretum repentis, Ambrosio artemisiifoliae-Cirsietum setosi Carduo acanthoidis-Onopordetum acanthi. highest Agropyretum repentis Convolvulo arvensis-Agropyretum repentis. observed those lithozems red-brown clays, pedozems. negative correlation between all lithozems. No statistically significant For classification associations, such salt content solution, nitrogen content, ombroclimate, light regime, are greatest importance. traditional scale ecosystem, i.e. quantify how far ecosystem deviated state. study, we use observe returns state, which considered marker approach allows us contrast hemeroby, formally symmetrical: higher lower be. wide levels pressure, pattern certainly true. peculiarity more sensitive occurs deviation state low impact. turn, changes under conditions high transformation.

Language: Английский

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Geospatial applications as an integral component of wildlife monitoring in the Chor-nobyl Radiation and Ecological Biosphere Reserve

Biosystems Diversity, Journal Year: 2024, Volume and Issue: 32(1), P. 127 - 134

Published: Jan. 26, 2024

The large area of the Chornobyl Radiation and Ecological Biosphere Reserve inaccessibility some areas to reserve's staff due radioactive contamination make geospatial data collection methods a good alternative traditional field sampling. aim study is assess effectiveness limits applying contemporary tools biodiversity monitoring in Reserve. We used hierarchical cluster analysis compare how well different ways collecting worked by finding distances between groups species following samples: Fauna questionnaire, iNaturalist platform, mammals as part Polissia without Borders project, low-resource mammal surveys using camera traps. Incorporating GIS techniques into studies or inventories reserve undeniably powerful additional source information. platform provides reliable on richness seasonal topographic distribution, despite its limitations terms relative abundance structure communities. obtained with help questionnaire adequately describes situation spatial distribution medium-sized mammals, approaching such an accurate method photographic photo Increasing quantity quality results possible expanding competence training aimed at identifying indirect signs traces, burrows, gnawing marks, etc. Geostatistical are valuable for efficient use technology resources inventory identification generation, uniformity collection, effective dissemination.

Language: Английский

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Predicting organic carbon in European soils: Only in Southern Ukraine can we expect an increase in humus content

Regulatory Mechanisms in Biosystems, Journal Year: 2024, Volume and Issue: 15(1), P. 24 - 30

Published: Jan. 27, 2024

Soil organic carbon comprises the majority of terrestrial soil pool and plays an important role in global cycle balance. Even minor changes (SOC) can have a significant impact, not only on climate but also ecosystem stability, due to its key soil-atmosphere exchange, plant growth, food production. In order assess feedbacks between change, maintain functions, it is crucial understand spatial temporal SOC drivers these changes. The as source or sink atmospheric CO2 primarily influenced by water content. Climate particularly warming, direct indirect impact decomposition matter regulating microbes fauna, enzyme activity, respiration. A warming may increase loss atmosphere because has stronger effect respiration than photosynthesis, resulting positive carbon-climate feedback. significantly affect stocks, with magnitude largely dependent initial stock size. content aspect ecosystems that affects their functional properties climate. Conversely, variability predictions made for west-central European region are considerations. study identified variation throughout Europe forecast dynamics next 50–70 years, considering change. Digital mapping enables more precise representation space, including quantification prediction errors. accuracy increases local observations, such profiles, available construct model. allows flexible development property maps. properties, nutrient concentration carbon, heavy metals, pH, cation exchange capacity, physical like particle size bulk density, be modelled at different depths resolutions depending project's objectives input data. r GSOCmap project used 1 km grid model Europe, range from 0 750 t/ha, mean 78.1 t/ha standard deviation 50.1 t/ha. Climatic factors were found account 29% based regression analysis. revealed air temperature leads decrease content, while precipitation results this indicator. Additionally, negatively impacted seasonality precipitation. According forecast, change will cause 1.0–1.1 3.6% continent's area over 70 years. On 7.6% area, insignificant. expected 88.9% area. Of this, 35.1% experience slight 0–1 28.4% moderate 25.3% 1.1–1.3 Baltic countries, Belarus, Black Earth zone Russia highest risk. risk becoming highly imports increased fact. prospects Ukraine quite optimistic. northern Azov region, we expect intensification humus accumulation processes near future, mainly Precipitation southern limiting factor agricultural productivity. Increased growth present agriculture Ukraine, Azov, Sea, Crimea. It possible occupation territories, which promising production, one goals Russian armed aggression against Ukraine.

Language: Английский

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Steppe vegetation islands in the gully landscape system: Hemeroby, naturalness and phytoindication of ecological regimes

Regulatory Mechanisms in Biosystems, Journal Year: 2023, Volume and Issue: 14(4), P. 581 - 594

Published: Dec. 26, 2023

The article reveals the peculiarities of vegetation cover gully system as a landscape where there are islands steppe and their relationship with other types natural semi-natural vegetation. patches type that was previously typical for large geographically widespread physical geographical zone. is complex species best adapted to climatic conditions factor in ensuring sustainable functioning zonal complexes. limited nature remnants raises issue conservation and, if possible, restoration distribution. field research conducted Mayorska valley (Dnipropetrovska oblast, Ukraine) (48°16'41" N, 35°8'21.49" E). During summer 2023, presence all vascular plant recorded 289 sample plots 4 × m size. represented by 263 species. analysis synoptic phytosociological table allowed determine studied six classes highest level diversity characteristic Festuco-Brometea. A slightly lower number observed Molinio-Arrhenatheretea Agropyretalia intermedio-repentis. lowest some associations Phragmito-Magnocaricetea, well Galio-Urticetea Onopordetalia acanthi. Festuco-Brometea communities occur at greatest distance from possible sources anthropogenic impact, which slopes gully. Festuco valesiacae-Stipetum capillatae were usually located upper third slopes, Stipo lessingianae-Salvietum nutantis Salvio nemorosae-Festucetum valesiacae middle slopes. preferred habitats insolation compared others. All syntaxon, exception Robinietea, moderate did not differ each this respect. class Robinietea found under syntaxon. Phragmito-Magnocaricetea community prefers topographic wetness index. naturalness such syntaxon Festuco-Brometea, Phragmito-Magnocaricetea. Artemisietea vulgaris. hemeroby negatively correlated Shannon use geomorphological variables, phytoindication assessments environmental factors, predictors discriminate an average accuracy 85.5%. leading gradient differential distinguishes biotopes high insolation, variability moisture conditions, carbonate content, low higher levels supply soil estimates, nitrogen ombroclimate indicators, accordingly, opposite indicators hemerobia. This between (Festuco-Brometea) meadow (Molinio-Arrhenatheretea) on one hand artificial ecosystems other. practical significance study role hemerobia emphasized communities. Urban areas have been usual testing ground indicators. Our indicates context significant transformation landscapes zone Ukraine, can be applied wide range ecosystem types. These appropriate practice implementing projects assess impact planned activities. assessment based botanical data should recommended standard protocol performing assessments. It also noted spread shelterbelts forest plantations within systems unacceptable. reason provocation erosion processes gullies due destruction vegetation, has control capacity. Also, invasive species, negative worsens functional properties diversity.

Language: Английский

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