Arid Ecosystems最新文献

{"title":"Facies Features of the Structural Composition of Humic Acids in Carbonate-Free Chernozem Soils of Transbaikalia","authors":"E. O. Chimitdorzhieva,&nbsp;Ts. D-Ts. Korsunova,&nbsp;G. D. Chimitdorzhieva,&nbsp;D. B. Ayurova","doi":"10.1134/S2079096126700113","DOIUrl":"10.1134/S2079096126700113","url":null,"abstract":"<p>This paper examines the facies features of non-carbonate chernozems in Transbaikalia formed on chlorite schists and characterized by different land use types (arable land, virgin land). The study aims to identify the influence of plant residue quality and soil properties on the structural parameters of humic acids. ¹³C-NMR spectroscopy was used to characterize the molecular composition, allowing us to determine the contribution of aromatic and aliphatic fragments to the structure of humic acids. It is shown that differences in the phytomass composition of steppe associations are reflected in the nature of the incoming organic matter. It is noted that humic acid transformations during plowing are accompanied by changes in the distribution of structural groups, indicating a restructuring of organic matter under anthropogenic load. The results clarify the understanding of the facial specificity of humus in the region’s chernozems and expand our understanding of the factors controlling organic matter stability.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"16 1","pages":"101 - 106"},"PeriodicalIF":0.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biodiversity of Protected Water Storage Reservoirs for Collector and Drainage Runoff in the Republic of Kalmykia","authors":"S. S. Ulanova,&nbsp;N. M. Novikova,&nbsp;I. B. Shapovalova,&nbsp;N. A. Volkova","doi":"10.1134/S2079096126700125","DOIUrl":"10.1134/S2079096126700125","url":null,"abstract":"<p>The operating features (changes in area and mineralization) of three (Manych-Gudilo, Tsagan-Nur, and Deed-Khulsun) reservoirs storing waste and collector–drainage waters coming from the irrigation systems of the Republic of Kalmykia are examined in this review. These wastewater reservoirs function unstable: the water surface area and mineralization change throughout the year from spring to autumn and in years with different atmospheric humidification, due to the unstable flow of water feeding them. Based on long-term observations entered into the Database of Species Richness of Ichthyofauna, Vegetation, and Avifauna, statistical processing of the data was carried out. The specially protected areas (SPTA) established on their basis, of various ranks, from republics to international (biosphere), support the biodiversity of halo-hydromorphic ecosystems. Each body of water has formed biocomplexes, which together are represented by 52 fish species from 39 genera and 13 families, and 179 plant species from 98 genera and 33 families. The avifauna includes 227 species, 26 of which are listed in the Red Book of the Russian Federation (2008), and 60 are in the Red Books of the neighboring Kalmykia Rostov Oblast (2024) and Stavropol Krai (2002). The similarities and differences in the species composition of the studied water bodies were identified, and the contribution of each to the formation of regional biodiversity was assessed. Occupying only 3.6% of the territory of Kalmykia, they largely ensure the preservation of the biological wealth of the entire region: 73% of the ichthyofauna species, 72% of the avifauna, and 20% of the flora of the northwestern Caspian region are found within their borders. It has been shown that, in arid regions, human-created reservoirs are important components of irrigation water management systems and transformed landscapes. Along with other bodies of water in Kalmykia, the three considered perform an important function of protecting the migration of several million birds. The reduction in area and the increase in water mineralization, along with the worries factor, negatively impact the maintenance of the species diversity of protected areas.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"16 1","pages":"107 - 121"},"PeriodicalIF":0.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantitative and Qualitative Composition of Hydrocarbons in the Bottom Sediments of the Beisug Liman, Khanskoe Lake, and the Neighbouring Waters of the Azov Sea","authors":"O. V. Soloveva,&nbsp;E. A. Tikhonova,&nbsp;O. V. Stepan’yan","doi":"10.1134/S2079096126700186","DOIUrl":"10.1134/S2079096126700186","url":null,"abstract":"<p>The paper reports the study conducted to analyse the quantitative and qualitative composition of hydrocarbons in the bottom sediments of the Beisug Liman, Khanskoe Lake, and the neighbouring waters of the Azov Sea in autumn, with an assessment of the likely sources of their entry into the environment. The hydrocarbon content in the bottom sediments (12.5–23.6 mg/kg) of this part of the Azov Sea was slightly below the average for the entire sea area. This index values ranged from 14.4 to 36.7 mg/kg in the bottom sediments of the Beisug Liman, and from 37.8 to 149.1 mg/kg in Khanskoe Lake. Concentrations exceeding the background characteristic of the studied lithotype of bottom sediments were recorded in the individual samples in all the studied water areas (at stations 1 and 5 in the Beisug Liman, station 4 in the sea, and station 8 in Khanskoe Lake). The distribution of n-alkanes, the nature of the chromatograms obtained, and the values of the calculated hydrocarbon genesis markers indicate their mixed origin. The main source of hydrocarbons is allochthonous matter, followed by macrophyte community. Signs of oil pollution have been recorded in all the studied areas. At the same time, isoprenoid coefficient (Ki) values correspond to the presence of oil and oil products of medium and high degrees of degradation, which indirectly indicates high intensity of self-purification processes in this water area.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"16 1","pages":"168 - 174"},"PeriodicalIF":0.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ecological and Phytocenotic Analysis of Communities with the Participation of Matthiola Daghestanica (Conti) N. Busch in Arid Conditions of the Middle Mountains of Dagestan","authors":"R. M. Osmanov","doi":"10.1134/S207909612670006X","DOIUrl":"10.1134/S207909612670006X","url":null,"abstract":"<p>An ecological–phytocenotic analysis of communities with the participation of the xerophytic and rare endemic <i>Matthiola daghestanica</i> (Conti) N. Busch in the conditions of the middle mountains of Dagestan, where 94 species of vascular plants from 34 families and 75 genera were identified. Among the species studied, xerophytes (46.8%), mesotrophs (71.3%), and light-loving plants (92.6%) predominate. In communities involving <i>M. daghestanica</i>, five associations were identified: <i>Artemisetum achnatheroso-salviosum</i> (wormwood–sage), <i>Artemisetum achnatheroso-variiherbosum</i> (wormwood–multiherb wormwood), <i>A. saturejoso-parietariosum</i> (artemisia savory-parstenitsa), <i>Matthioletum salvioso-artemisetosum</i> (sage–wormwood), and <i>M. artemisetoso-variiherbosum</i> (artemisia fulvosa), which are found on the territory of the Eastern Caucasus, and the last two are found only in the arid midlands and foothills of Dagestan. All associations have high conservation value due to the presence of 17 endemic species of the Eastern Caucasus and 12 endemic species of Dagestan (more than 90% are xerophytes). It is important to note that some associations include three species listed in the Red Data Book of the Russian Federation (2023) and six species from the Red Data Book of the Republic of Dagestan (2020). The results of the ecological and phytocenotic study of the <i>M. daghestanica</i> can serve as a basis for developing scientific principles for the sustainable conservation of species (populations), creating specially protected natural areas and conducting comprehensive floristic and ecological studies in relation to other associated rare and endemic species growing in changing climate aridity conditions.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"16 1","pages":"52 - 60"},"PeriodicalIF":0.6,"publicationDate":"2026-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of “Methods for Assessing Hydrogen Disturbances in Terrestrial Ecosystems and Landscapes” As a Result of Combined Anthropogenic (Hydrotechnical) and Natural (Climatic–Hydrological) Impacts","authors":"Zh. V. Kuz’mina,&nbsp;S. E. Treshkin,&nbsp;T. Yu. Karimova","doi":"10.1134/S2079096125700386","DOIUrl":"10.1134/S2079096125700386","url":null,"abstract":"<p>The “Methodology for Identifying Hydrogen Disturbances in Terrestrial Ecosystems and Landscapes” was developed as a result of combined anthropogenic (hydrotechnical) and natural (climatic-hydrological) impacts by including in the main analysis algorithm two additional blocks for quantitative assessment of not only the main abiotic (meteorological, hydrological, the relative coefficient of change, the Ped’ index) and biotic (quantity and quality of species diversity, fluctuation variability, changes in structure like layering, quality, and quantity of indicator species, food value for meadows, aggregate assessment of indicators for each ecosystem separately, aggregate assessment for landscapes for several ecosystems compatible by profile or block) components of ecosystems, but also a quantitative assessment of two biocost (water and soil) types of components (blocks). For the water block, quantitative analysis and assessment of (a) changes in the frequency of floodplain flooding of territories and (b) long-term changes in groundwater levels were added. Ground-based (quantitative) data on changes in the position of flooding and the location of groundwater levels by area and depth were verified based on space data. In monitoring the position of the groundwater level by area and depth, data on the long-term dynamics of the groundwater level during the low-water period are especially valuable. For the soil block, an analysis and assessment of (a) the quantitative (by depth of occurrence) manifestation of gleyization processes (for humid and arid territories) and (b) the qualitative (by the strength of manifestation in the soil profile, %) of their manifestation (gleyization) were added, as the most informative and easily identifiable soil markers in field conditions during anthropogenic or natural changes in the water content of the territory.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 4","pages":"453 - 460"},"PeriodicalIF":0.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147579578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Species Diversity of Endophytic Fungi in Xerophytes Growing on Dry Territories of Southern Russia","authors":"P. A. Kuzmin,&nbsp;P. A. Krylov,&nbsp;V. O. Malov","doi":"10.1134/S2079096125700465","DOIUrl":"10.1134/S2079096125700465","url":null,"abstract":"<p>Plants ensure resistance to negative environmental factors through various systems. One such system is a symbiotic relationship between a plant and endophytic fungi, specifically, <i>Arbuscular endomycorrhiza.</i> The xerophytic plants <i>Krascheninnikovia ceratodes</i> (L.) Gueldenst., <i>Haloxylon aphyllum</i> (Minkw.) Iljin, and <i>Tamarix ramosissima</i> Ledeb are used in Southern Russia to combat desertification and restore degraded lands. In this regard, the aim of this work was to determine the species diversity of endophytic fungi in the plants studied. The degree of mycorrhization and the abundance of arbuscules were assessed using the Trouvelot method (Trouvelot et al., 1986). Endophytes were identified by sequencing the internal transcribed spacer (ITS) region of their DNA using Oxford Nanopore technology. The research results have shown that the root system of <i>K. ceratodes</i> is mycorrhizated by two genera of fungi, i.e., <i>Monosporascus</i> Pollack &amp; Uecker and <i>Fusarium</i> Link, which may form arbuscule-like structures creating a symbiotic, mutualistic relationship. Members of the genera <i>Fusarium</i> and <i>Simplicillium</i> (J.F.H. Beyma) Zare &amp; W. were found in <i>H. aphyllum</i> and <i>T. ramosissima</i>. The intensity of mycorrhization in the root system of <i>K. ceratodes</i> was two times higher compared to other species studied. Herein, the abundance of arbuscules in the root system of <i>K. ceratodes</i> reached a maximum value, which was 17 times higher than that of <i>T. ramosissima</i> and 34 times that of <i>H. aphyllum</i>. It is assumed that these members of endophytic fungi form mutualistic relationships with plants to help them resist drought.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 4","pages":"517 - 522"},"PeriodicalIF":0.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147579436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil Microbiota of the Humus Cycle in Gray Soils of Ravine Oak Forests of the Steppe Zone","authors":"L. A. Alaeva,&nbsp;I. V. Cherepukhina,&nbsp;T. A. Devyatova,&nbsp;I. V. Rumyantseva","doi":"10.1134/S2079096125700477","DOIUrl":"10.1134/S2079096125700477","url":null,"abstract":"<p>Current studies of the global carbon cycle cover all environmental components, including the biosphere as a whole. Decomposition and humification of organic residues in the soil result in the formation of a complex system of intermediate compounds, which are simultaneously consumed in the processes of humification and mineralization up to final products. In terrestrial ecosystems, forest ecosystems and their soils represent critical links of the carbon cycle. Despite the fact that forest ecosystems in the steppe part of the Central Chernozem region occur only as islands of ravine oak forests, their ecological functions in arid ecosystems are very important. The soils of ravine oak forests are formed along an elevational series in the following order: typical light-loamy gray soils of the summit of a west-facing slope → stratified humic water-accumulating loamy gray stratozems on proluvial–deluvial deposits of the ravine bottom → typical light-loamy gray soils of the summit of the east-facing slope. The study of the forest soil microbial community of the ravine complex was based on the recording of the abundance of groups involved in carbon turnover, such as actinomycetes, micromycetes, and autochthonous and zymogenous microflora. The results of this study showed that, in the case of arid climatic conditions (HTC = 0.8), the processes of humus formation in the oak forest soils were the most active in spring, whereas humus mineralization processes dominated in autumn. In autumn, the abundance of the zymogenous group differed insignificantly between the elements of the ravine complex (<i>R</i>² = 0.9956). In spring, the abundance of this group and its contrast between the elements of the ravine complex increased significantly (<i>R</i>² = 0.7715). The maximum abundance was observed on the west-facing slopes. A contrasting trend of development was observed for this group of microorganisms in the spring period. For all sites studied, the abundance of micromycetes in autumn was lower than in spring, with the maximum value observed in the soil of the ravine bottom. Actinobacteria have different development trends for the autumn and spring periods: in autumn, their quantity gradually decreased from the west- to east-facing slope, while the opposite trend was observed in spring. Thus, the activity of participation of different microbial groups in humus formation processes is highly dynamic and depends on both the seasonality (spring, autumn) and the landscape position (slope aspect, ravine element).</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 4","pages":"523 - 531"},"PeriodicalIF":0.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147579431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Role of Artificial Reservoirs in Kalmykia in Maintaining the Biodiversity of Avifauna of Hydromorphic Ecosystems in the Context of Modern Climate Change and Increasing Anthropogenic Pressure","authors":"I. B. Shapovalova,&nbsp;B. I. Ubushaev,&nbsp;S. S. Ulanova","doi":"10.1134/S2079096125700441","DOIUrl":"10.1134/S2079096125700441","url":null,"abstract":"<p>This work is devoted to the avifauna of some reservoirs–storage sites of waste and collector–drainage waters, as well as reservoirs of the filling type on the territory of the Republic of Kalmykia as of 2025. The composition and structure of coastal ornithocomplexes of the Manych-Gudilo, Deed-Khulsun, and Chograi reservoirs, as well as some small reservoirs of local importance, were studied. These reservoirs are key ornithological territories of Russia (KOTR). The water areas of some of them (Manych-Gudilo Lake and Deed-Khulsun Lake) are protected natural areas of federal and regional significance, which facilitates their monitoring. A modern assessment of the diversity of avifauna and bird population of the reservoirs and their coasts (species composition, number/abundance) is given. The contribution of water bodies to the conservation and enrichment of the biodiversity of the region was assessed. Recommendations are given for managing the hydrological regime in order to maintain and preserve coastal ecosystems, including populations of rare and vulnerable bird species.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 4","pages":"500 - 508"},"PeriodicalIF":0.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147579448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Impact of Fires on the Composition and Structure of the Flora of Steppe Meadows of the Khanka Lowland (Primorskii Krai, Russia)","authors":"E. A. Marchuk,&nbsp;A. K. Kvitchenko,&nbsp;L. A. Zalyautdinova,&nbsp;E. G. Egidarev,&nbsp;S. A. Benkovsky","doi":"10.1134/S2079096125700362","DOIUrl":"10.1134/S2079096125700362","url":null,"abstract":"<p>The Khanka Lowland is a flat area surrounding Khanka Lake. According to the biome classification, it belongs to the Prikhankai pine–oak forest–steppe biome. The Khanka forest–steppe is characterized by a special type of steppe meadows, which include a complex of true steppe species, many of which are located here on the eastern border of their range and are listed in the regional Red Book. One of the most powerful factors affecting the ecosystems of the Khanka Lowland is fires. However, their impact on the Khanka vegetation has not been studied. The aim of our work was to establish the consequences of short-term exposure to pyrogenic factors on the composition and structure of the flora of steppe meadows. This research was carried out in 2023–2024 at seven sites located in the Khankaiskii district on the western coast of Hanka Lake. Data on the burnt areas were extracted using Landsat and Sentinel-2 satellite images from open sources. Descriptions were made on 42 10 × 10 m plots in areas in the year of the fire and one, two, and five years after the fires. Data analysis was performed using generalized linear mixed-effects models (GLMMs) in the R software environment. The number of years since the fire was considered as an independent factor. In addition, the topography and distance to the forest were used as predictors. It was established that the highest species richness (138 species) was noted in the survey sites in the first year after the fire, and the lowest (83 species) was noted in areas that had not burned for five years. It was shown that, in the year of the fire, the projective cover of steppe species was significantly greater than one, two, or five years after the fire, while that of nemoral mesophytes, on the contrary, was significantly less. Insignificant changes occur in the species composition of the flora of steppe meadows during pyrogenic fluctuations over the course of 1–5 years. Fires have a significant impact only on the abundance of steppe and nemoral species. In models where the dependent parameter is species diversity, the influence of the pyrogenic factor is not reliable. The topography and distance to oak forest communities have a greater impact on differences in the composition and structure of the flora. However, the overall effect of regular spring and autumn burning is more negative than positive, and only becomes apparent after a longer period.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 4","pages":"435 - 444"},"PeriodicalIF":0.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147579439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil Mapping in Unproductive Lands in the Southern Part of the Volga Upland (Volgograd Oblast) Based on Satellite Images","authors":"I. N. Gorokhova,&nbsp;L. A. Tarnopolskii,&nbsp;E. I. Pankova","doi":"10.1134/S2079096125700416","DOIUrl":"10.1134/S2079096125700416","url":null,"abstract":"<p>The aim of the present work was to develop and test a method for creating a comprehensive digital map of soils with outcropping rubble, sand, and sandy loam deposits and surface calcareous soils based on satellite images and field research data in the southern part of the Volga Upland. The scientific novelty of this work is the integrated approach to the assessment of soils in unproductive agricultural lands formed under the influence of anthropogenic and natural factors that require different land reclamation measures. The object of this study was the key plot located in the western part of the Oroshaemaya research station of the Volga–Don irrigation system in Volgograd oblast. Field studies were carried out in August–September 2020–2023. Route and topographical and profile surveys were conducted. On routes, the presence of carbonates was determined by the boiling rate upon contact with 10% HCl solution for daytime soil surfaces, and three topographic soil profiles were defined with the description of soils and soil-forming rocks. A Pleiades satellite image dated April 25, 2020, with a resolution of 0.5–0.7 m after processing obtained in the B1–B4 and panchromatic channels was used. It was found that the spectral brightness in all channels, which reflects the geological rocks located close to the surface and surface calcareous soils, had similar but still discriminable values, which made it possible to use the satellite image to separate these objects. The satellite image of the key site was classified separately to identify soils with different soil-forming and underlying rocks and to determine the boiling rate of surface-calcareous soils. Classification was performed using the Random Forest algorithm with training based on field data points. Only fields with an open soil surface were analyzed. The classification accuracy ranged from 0.75 to 0.90 in both cases. After classification, a bitmap file was obtained for each field, which was used to calculate the areas occupied by each of the soil types studied. The use of this approach made it possible to discriminate the surface-stony, sandy, and sandy loam soils from the surface-calcareous soils that require different land reclamation measures.</p>","PeriodicalId":44316,"journal":{"name":"Arid Ecosystems","volume":"15 4","pages":"476 - 482"},"PeriodicalIF":0.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147579437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}