SIMULATION OF AN ECOTONE IN ACCORDANCE WITH THE MOSAIC CHARACTERISTICS OF THE FORMATIONS OF MODERN WINTER ENTOCOMPLEX ON WINTER WHEAT
Journal Title: Наукові доповіді НУБіП України - Year 2018, Vol 5, Issue 5
Abstract
The article discusses the construction of the main problem of phytosanitary diagnostics of an ecotone - its complex ecological structure, primarily a mosaic, which determines a high level of biodiversity as a consequence of the effect of ecotones, as well as the effects on phytophagous complexes on winter wheat. An ecotone is the highly dynamic boundary between two disparate ecosystems:vegetation types and biomes. Ecotones can be very narrow and sharply defined, suchas a terrestrial-aquatic boundary, or they can represent a broad transition betweendiffering biomes, such as a gradual conversion between grassland and forest. Often, the flora and fauna found on either side of an ecotone will not be similar to one another,and species favoring one side of the ecotone will not fare as well on the other. Because of the variability in vegetation cover and abiotic factors characterizedby ecotones, biodiversity across an ecotone tends to be higher than in relativelyhomogeneous habitats on either side of the ecotone. Ecotones can be formed bynatural processes, such as floods, fires, and volcanic activity, but increasingly, humanland use activities have created ecotones. Examples of anthropogenic ecotones areagricultural-pastoral boundaries, urban-rural spaces, and parks or protected landadjacent to lands used to meet human resource needs. One concern that land managers express over ecotones is that they favor the successof invasive species. Human land uses such as road building or agricultural activitiescreate ecotones with wholly different competition and predation regimes. Areas ofundisturbed natural habitat are typically more resistant to invasive species, but patcheswhere parts of previous ecosystems have been removed prove particularly prone tocolonization by invasives, such as fire ants, tumbleweed, or buffelgrass. Ecotones usually prefer certain types of vegetation and fauna over others. Species requiring a high degree of stability and continuity of the habitat will not succeed in ornear ecotone; species adapted to breaches or boundaries can better utilize the sources found in these niches. Abiotic factors, such as erosion, sedimentation, snow accumulation, nutrient availability, salinity and temperature, are affected by certain cations and tend to differ from one side of the border to the other. Ecotones can also form microclimates that, in addition to others, belong to other species. For example, а а fields of winter wheat surrounded by a forest will be characterized by higher extreme temperatures and faster temperature changes than the surrounding forest. In addition, direct light reaching the ground will lead to accelerated evaporation and, possibly, dry meadow soils faster than in the forest. The features of an ecotone, in particular the presence of environmental friendliness between populations, its parameters — location, density, and other indicators.
Authors and Affiliations
А. Fokin, V. Sakhnenko, D. Sakhnenko
Keywords
Related Articles
- EP ID EP419394
- DOI 10.31548/dopovidi2018.05.017
- Views 116
- Downloads 0
SOYBEAN PHOTOSYNTHETIC PRODUCTIVITY DEPENDING ON FERTILIZER LEVEL AND COMPLEX OF MICROELEMENTS
The soybean (Glycine max) is one of the most important food plants of the world, and seems to be growing in importance. It is an annual crop, fairly easy to grow, that produces more protein and oil per unit of land than...
INFLUENCE OF GROWTH REGULATORS AND MINERAL NUTRITION ON NUTRIENT STATUS OF SUNFLOWER
. Recently it was proved that the sunflower is an agricultural plant, which compensates taking out the high amount of macro - and micronutrients from the soil by returning them to the soil the waste after the harvesting....
MUTATIONS IN WINTER WHEAT (TRITICUM AESTIVUM L.) UNDER THE DIMETHYL SULFATE ACTION
The peculiarities of the chemical mutagen action and the induction of mutations during its interaction with the genotype of eight processed varieties and lines of winter wheat have been investigated. Chemical mutagen dim...
CELL SELECTION OF TRITICUM CALLUS CULTURES TRITICUM AESTICUM L. ON STABILITY TO AGENT BASAL BACTERIOSIS
The increase in the number and severity of bacterial diseases in modern conditions of growing crops makes it necessary to use in the production of wheat varieties, which are characterized by high-quality yield for high...
ORGANOLEPTIC EVALUATION OF APPLES CV. HONEYCRISP WITH POSTHARVEST ETHYLENE INHIBITOR TREATMENT
Honeycrisp is an apple cultivar of American selection with a unique texture and high turgor of flesh, which provides high consumer demand. However, due to the non- simultaneous onset of harvest maturity, the fruits of th...