Effect of Climate Variability on Agro-climatic Potential of Landscapes of the Chechen Republic

The paper analyzes variability of the agro-climatic parameters of landscapes in the Chechen Republic, which are actively involved in agricultural production. The paper employs statistical and mathematical research methods. Due to climate aridization, agro-climatic conditions were found to deteriorate in 1965–2015 in the plain semi-desert and desert landscapes. Despite the improved thermal and moisture conditions in the plain steppe landscapes, the number of dangerous meteorological phenomena was observed to increase, including those detrimental to agriculture. Owing to the increased period of active vegetation of plants, agro-climatic conditions in the mountain-valley shrub-steppe landscapes of the republic improved compared to those observed in 1931–1960

Using information processing algorithms that factor in the effect of secondary modulation of radar signals

The article provides an assessment of the impact the dynamic structures of power systems of aircraft systems have on the spectrum of the reflected radar signal. In the conditions of autonomous actions of the fighter, the tasks of long-range detection of airborne targets are assigned directly to the onboard radar station. It is necessary to resolve the contradictions associated with increasing the detection range without changing the energy indicators of the onboard radar station. This is possible by optimizing the processing of many spectral components of the signal reflected from the propeller and turboprop engine of airborne targets. The location of propeller reflections in the spectrum of the reflected signal is determined by the technical parameters of the power plant and its mode of operation. The percent of the total energy of the reflected signal spectrum outside the main spectral component is comparable with the energy reflected from the airframe of the aviation complex, most of which is the energy reflected from the rotating elements of power plants. Therefore, the development of an algorithm for detecting a signal with a complex spectral structure that maximizes the probability of detection under time and computational resources restrictions is a very relevant scientific task. The scientific novelty lies in the development of an algorithm for detecting a signal with a complex spectral structure and its detection characteristics taking the effect of secondary modulation into account as well as in the development of practical recommendations for optimizing algorithms for detecting airborne targets. Using the developed algorithm in the fighter’s pulse-Doppler radar station will increase the detection range of an air target against the background of interfering reflections from the water surface

SELITEBNY LOAD OF LANDSCAPES OF THE NORTH CAUCASUS

In article selitebny load of mountain and flat landscapes of the North Caucasus is considered. As a result of application of cartographical methods the spaces occupied by the main landscapes, are compared with the areas of settlements in their limits. The number of settlements within landscape contours, and also their average area is defined. It is revealed that foothill landscapes to Ciscaucasia and mountain kotlovinny landscapes – in the territory of Greater Caucasus are subject to most selitebny loading

MAPPING OF AREAS OF MODEL SPECIES OF ANIMAL POPULATION OF THE REPUBLIC OF DAGESTAN

Aim. The aim of the study is to carry out mapping of the distribution of model animal species (on the example of weevils-beetles) of the Republic of Dagestan as well as to design a set of zoogeographic maps. Methods. The study is based on materials of the field expeditionary research conducted in the period of 1999-2018 in various areas of Dagestan, collected using conventional entomological methods. As the source material for the creation of the maps was used the database created by the authors, the collection materials of the Institute of Ecology and Sustainable Development of the DSU, archive materials of the Sub-Department of Geography of Moscow Institute of Engineers in Geodesy, Aerophotography and Cartography (DTM, raster and vector topographic and thematic maps of the study area). Processing of the materials and creation of maps were carried out using such software platforms as ArcGIS, MapInfo and Adobe Illustrator CC. Results. Were mapped the areas of 14 model species of weevils-beetles which differ in their distribution, number as well as theoretical and practical significance. A database of mapped species was created. Mathematical foundations, general geographical and thematic content in the GIS environment, as well as editorial guidelines were developed, which allow presenting information in both vector and raster forms (traditional “paper” maps). Conclusion. A set of maps was created which reflects the ranges of model species of the animal population of the Republic of Dagestan: “Lowland Dagestan. Model species of weevils-beetles”, “Intramontane Dagestan. Model species of weevils-beetles”, “Montane Dagestan. Model species of weevils-beetles”.Aim. The aim of the study is to carry out mapping of the distribution of model animal species (on the example of weevils-beetles) of the Republic of Dagestan as well as to design a set of zoogeographic maps. Methods. The study is based on materials of the field expeditionary research conducted in the period of 1999-2018 in various areas of Dagestan, collected using conventional entomological methods. As the source material for the creation of the maps was used the database created by the authors, the collection materials of the Institute of Ecology and Sustainable Development of the DSU, archive materials of the Sub-Department of Geography of Moscow Institute of Engineers in Geodesy, Aerophotography and Cartography (DTM, raster and vector topographic and thematic maps of the study area). Processing of the materials and creation of maps were carried out using such software platforms as ArcGIS, MapInfo and Adobe Illustrator CC. Results. Were mapped the areas of 14 model species of weevils-beetles which differ in their distribution, number as well as theoretical and practical significance. A database of mapped species was created. Mathematical foundations, general geographical and thematic content in the GIS environment, as well as editorial guidelines were developed, which allow presenting information in both vector and raster forms (traditional “paper” maps). Conclusion. A set of maps was created which reflects the ranges of model species of the animal population of the Republic of Dagestan: “Lowland Dagestan. Model species of weevils-beetles”, “Intramontane Dagestan. Model species of weevils-beetles”, “Montane Dagestan. Model species of weevils-beetles”

Natural landscapes as a factor in the effective development of agriculture in the North Caucasus, Russia

Aim. Assessment of natural landscapes of the North Caucasus in order to increase the efficiency of their use for agriculture on the basis of modern updated data.Material and Methods. Research on the assessment of the state of natural landscapes was carried out by modern methods, including remote sensing using systemic, analytical and comparative geographical analysis methodologies.Results. In agricultural terms, the use of semi‐desert landscapes is limited because a lack of moisture. Accordingly, they are most suitable as pastures (especially in winter), haymaking, and also for the cultivation of melons. Agriculturally flat and hilly warm‐temperate and moderate semi‐arid landscapes are the most favorable landscapes for crop production: the main form of use of these landscapes is as arable land. Lowland temperate semi‐humid landscapes, which are widespread in the North Caucasus foothills, are also quite favorable for agricultural production. Conclusion. We have established that in order to increase the efficiency of use of landscapes of the North Caucasus, high‐quality zoning is necessary with the subsequent development of agro‐reclamation measures