Eurasian Soil Science最新文献

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Effect of Low Temperature Heating of Potassium-Depleted Soils on Secondary Potassium Release to Calcium Chloride and Wood Vinegar and Fixation 低温加热缺钾土壤对氯化钙和木醋二次释放钾及固定的影响
IF 1.4 4区 农林科学
Eurasian Soil Science Pub Date : 2024-07-30 DOI: 10.1134/s1064229324601082
Mahdi Najafi-Ghiri, Hamid Reza Boostani, Soheila Sadat Hashemi
{"title":"Effect of Low Temperature Heating of Potassium-Depleted Soils on Secondary Potassium Release to Calcium Chloride and Wood Vinegar and Fixation","authors":"Mahdi Najafi-Ghiri, Hamid Reza Boostani, Soheila Sadat Hashemi","doi":"10.1134/s1064229324601082","DOIUrl":"https://doi.org/10.1134/s1064229324601082","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Potassium behavior in calcareous soils are very complex and are affected by several factors, such as the content of carbonates and soil heating. In the present research, the comparison of four calcareous soils with varying amounts of carbonates, different mineralogy, and texture (collected from Fars province, southern Iran) was compared to analyze the content of K species, K release by solutions of 0.01 M CaCl<sub>2</sub> and 1% wood vinegar, and K re-fixation. The study also investigated the impact of heating K-depleted soils to 100°C on the secondary release and re-fixation of K. The results showed that the studied soils contained 3–60% carbonates, 14–53% clay, and a relatively similar mineral composition: smectite, illite, chlorite, palygorskite (in dry areas), and vermiculite (in humid areas). Wood vinegar extracted more K from soils with less carbonates than CaCl<sub>2</sub>, while this difference was not significant for Fluvisols, which contains about 60% carbonates. Mollic Vertisols with low carbonate content (about 3%) and high levels of clay and smectite released less K in the initial phase. However, K release by this soil decreased less in the second phase, indicating the higher buffering capacity of Mollic Vertisols in providing soluble K. Heating the soil increased the secondary release of K, but decreased the amount of K re-fixation in soils treated with CaCl<sub>2</sub>. Generally, Mollic Vertisols fixed more K than other soils. In addition, the type of extractant had no effect on the content of K fixation in the studied soils except Mollic Vertisols. However, wood vinegar reduced the K fixation content in Mollic Vertisols compared to CaCl<sub>2</sub>. In general, it can be concluded that wood vinegar can provide more K to the plants without dissolving K-bearing minerals compared to CaCl<sub>2</sub>. In addition, soil heating can influence the process of K release and fixation in K-depleted soils.</p>","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
From Lab to Field: Advancements and Applications of On-The-Go Soil Sensors for Real-Time Monitoring 从实验室到现场:用于实时监测的随身土壤传感器的进步与应用
IF 1.4 4区 农林科学
Eurasian Soil Science Pub Date : 2024-07-30 DOI: 10.1134/s1064229324601124
Anyou Xie, Qingwei Zhou, Li Fu, Lichuan Zhan, Weihong Wu
{"title":"From Lab to Field: Advancements and Applications of On-The-Go Soil Sensors for Real-Time Monitoring","authors":"Anyou Xie, Qingwei Zhou, Li Fu, Lichuan Zhan, Weihong Wu","doi":"10.1134/s1064229324601124","DOIUrl":"https://doi.org/10.1134/s1064229324601124","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>On-the-go soil sensors have emerged as promising tools for real-time, high-resolution soil nutrient monitoring in precision agriculture. This review provides a comprehensive overview of the current state-of-the-art in on-the-go soil sensor technology, discussing the potential benefits, limitations, and applications of various sensor types, including optical sensors (Vis-NIR, MIR, ATR spectroscopy) and electrochemical sensors (ISEs, ISFETs). The integration of these sensors with positioning systems (GPS) enables the generation of detailed soil nutrient maps, which can guide site-specific management practices and optimize fertilizer application rates. However, factors such as soil moisture, texture, and heterogeneity can affect sensor performance, necessitating robust calibration models and standardized protocols. Future perspectives highlight the need for multi-sensor systems, incorporation into IoT networks for smart farming, and enhancing affordability and adoptability of on-the-go sensor technologies to promote widespread adoption in precision agriculture.</p>","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"3 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Differences in the Soil Prokaryotic Microbiome during Continuous and Single Cultivation of Three Varieties of Chinese Cabbage 三个大白菜品种在连续栽培和单一栽培期间土壤原核微生物组的差异
IF 1.4 4区 农林科学
Eurasian Soil Science Pub Date : 2024-07-30 DOI: 10.1134/s1064229323603566
Fang Wang, Xiaoli Wang, Rong Zhao, Lihua Zhang, Suhua Li, Nan Zhang, Haozhang Han
{"title":"Differences in the Soil Prokaryotic Microbiome during Continuous and Single Cultivation of Three Varieties of Chinese Cabbage","authors":"Fang Wang, Xiaoli Wang, Rong Zhao, Lihua Zhang, Suhua Li, Nan Zhang, Haozhang Han","doi":"10.1134/s1064229323603566","DOIUrl":"https://doi.org/10.1134/s1064229323603566","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Extended cultivation of Chinese cabbage in facility leads to significant continuous cropping challenges, which limits the healthy and sustainable development of the cabbage industry. This study employed metagenomic sequencing to examine soil microbial changes under continuous cropping, integrating soil chemical properties to investigate correlations between soil microbiota and soil quality. Results indicated that after continuous cropping of three varieties of Chinese cabbage, there were decreases in microbial Operational Taxonomic Units (OTUs) and the abundance and diversity of soil microbial communities. Pseudomonadota and Actinomycetota were the most dominant Phyla in the soil microbial community. The continuous cropping of three varieties of Chinese cabbage significantly increased the relative abundance of Pseudomonadota but decreased that of Actinomycetota and increased the relative abundance of <i>Gemmatimonas</i>, <i>Enhygromyxa</i>, <i>Rhizobium</i>, <i>Steroidobacter</i>, and <i>Bacillus</i>, decreased the relative abundance of <i>Pseudomonas</i>, <i>Bradyrhizobium</i>, <i>Nocardioides</i>, and <i>Solirubrobacter</i>. The relative abundance of <i>Nocardioides</i> demonstrated a significant negative correlation with <span>({text{NO}}_{3}^{ - })</span>, Cl<sup>–</sup>, and available Fe, Cu, and Zn levels. Conversely, <i>Pseudomonas</i> abundance showed a significant positive correlation with soil pH but a negative correlation with <span>({text{NO}}_{3}^{ - })</span>, <span>({text{HCO}}_{3}^{ - })</span>, <span>({text{SO}}_{4}^{{2 - }})</span>, Cl<sup>–</sup>, Ca<sup>2+</sup>, Na<sup>+</sup>, K<sup>+</sup>, and available Fe, Cu, and Zn levels. These findings suggested that the reduced abundance of <i>Nocardioides</i> and <i>Pseudomonas</i> may contribute substantially to the continuous cropping challenges observed in the three vegetable crops studied.</p>","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"31 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prediction of Soil Quality Index (SQI) and Its Minimum Dataset Indicators for Rice-Based Cropping Systems in the North Bank Plain Zone of Assam 预测阿萨姆邦北岸平原区水稻种植系统的土壤质量指数 (SQI) 及其最小数据集指标
IF 1.4 4区 农林科学
Eurasian Soil Science Pub Date : 2024-07-30 DOI: 10.1134/s1064229324600854
S. Bhuyan, D. K. Patgiri, B. K. Medhi, B. Deka, G. G. Kandali, S. J. Medhi, S. Kalidas-Singh, A. Debnath, R. R. Zhiipao, T. Tsomu, S. R. Devegowda, M. Sandillya
{"title":"Prediction of Soil Quality Index (SQI) and Its Minimum Dataset Indicators for Rice-Based Cropping Systems in the North Bank Plain Zone of Assam","authors":"S. Bhuyan, D. K. Patgiri, B. K. Medhi, B. Deka, G. G. Kandali, S. J. Medhi, S. Kalidas-Singh, A. Debnath, R. R. Zhiipao, T. Tsomu, S. R. Devegowda, M. Sandillya","doi":"10.1134/s1064229324600854","DOIUrl":"https://doi.org/10.1134/s1064229324600854","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Prediction of soil quality index is one of the suitable options to determine the productivity of a cropping system. Rice based cropping systems are the most important cropping systems followed in the North Bank Plain region. The productivity of such system has declined continuously due to deterioration of soil quality. The current study was carried out in Cambisols soil to establish soil quality index based on soil physical and chemical properties and identify quality indicators from the rice cropping system. A total of 180 geo-referenced surface soil samples were collected from five rice based cropping systems. The principal components analysis and machine learning model were used to screen the minimum data set indicators for computing the soil quality index. The minimum data set indicators were found as cation exchange capacity, micro aggregate, organic carbon, total porosity and available phosphorus. The SQI for the district ranged from 0.48 to 0.87, with an average of 0.62. The SQI was more significantly positively correlated with the rice equivalent yield of rice potato-based cropping systems, followed by rice rabi vegetables. The spatial variability of the SQI was presented on the geographical information system (GIS) platform through inverse distance weighting (IDW) method of interpolation.</p>","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"23 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
СО2 and СН4 Fluxes in Wetland Ecosystems of the Mezquital Valley, Central Mexico 墨西哥中部梅兹基塔河谷湿地生态系统中的СО2 和СН4 流量
IF 1.4 4区 农林科学
Eurasian Soil Science Pub Date : 2024-07-30 DOI: 10.1134/s106422932460129x
N. E. García-Calderón, E. Fuentes-Romero, E. Ikkonen, V. Sidorova
{"title":"СО2 and СН4 Fluxes in Wetland Ecosystems of the Mezquital Valley, Central Mexico","authors":"N. E. García-Calderón, E. Fuentes-Romero, E. Ikkonen, V. Sidorova","doi":"10.1134/s106422932460129x","DOIUrl":"https://doi.org/10.1134/s106422932460129x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>We measured dark CO<sub>2</sub> fluxes and CH<sub>4</sub> emissions from two naturally vegetated ecosystems of the Mezquital Valley irrigated with wastewater from Mexico City. The ecosystems were characterized by high groundwater levels; the vegetation was represented mainly by saltgrass in the first plot and chairmaker’s bulrush in the second. A dark chamber technique was used for the study from August 2008 to June 2009. For the two studied plots, mean values (mean ± SE) for dark ecosystem CO<sub>2</sub> fluxes (<i>R</i><sub>tot</sub>), soil CO<sub>2</sub> emission (<i>R</i><sub>soil</sub>), and heterotrophic respiration (<i>R</i><sub>het</sub>) were 26 ± 5, 14 ± 3 and 12 ± 3 mg C m<sup>–2</sup> h<sup>–1</sup>, respectively, The annual cumulative fluxes <i>R</i><sub>tot</sub>, <i>R</i><sub>soil</sub> and <i>R</i><sub>het</sub> equal to 234, 127 and 103 g C m<sup>–2</sup> y<sup>–1</sup>, respectively. The contribution of <i>R</i><sub>soil</sub> to <i>R</i><sub>tot</sub>, and <i>R</i><sub>het</sub> to <i>R</i><sub>soil</sub> varied significantly over the study period, with no clear relationship to seasonal dynamics. The observed low CO<sub>2</sub> fluxes may be due to soil salinization resulting from wastewater flooding. The fluxes of CH<sub>4</sub> were observed in the flooded plot, with peaks up to 370 µg C m<sup>–2</sup> h<sup>–1</sup>. The fluxes of CH<sub>4</sub> were significantly higher when plants were present in the measurement chamber than when there were no plants, confirming the important role of plant cover in CH<sub>4</sub> transport. Unlike CH<sub>4</sub> fluxes, CO<sub>2</sub> fluxes show seasonal dynamics, mainly due to their strong dependence on temperature. The observed results may be useful for properly estimating the global C budget and the contribution of saline soils to C fluxes.</p>","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"96 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cotton Grown in Rotation with Soybean Alters Soil Organic Matter over Time 棉花与大豆轮作种植会随时间改变土壤有机质
IF 1.4 4区 农林科学
Eurasian Soil Science Pub Date : 2024-07-30 DOI: 10.1134/s1064229324600611
Jun Zhang, Fenghua Zhang
{"title":"Cotton Grown in Rotation with Soybean Alters Soil Organic Matter over Time","authors":"Jun Zhang, Fenghua Zhang","doi":"10.1134/s1064229324600611","DOIUrl":"https://doi.org/10.1134/s1064229324600611","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Crop rotation could effectively alleviate continuous cropping problems, but how it affects soil organic carbon (SOC) components and chemical structures in case of different duration of continuous cropping (CC) remains unclear. In this study, we selected cotton fields that had been continuously planted for 5, 10, 15, and 20 years for separate soybean rotations (SR). The mechanism of SR to improve soil quality in different duration of CC was determined by SOC components and their chemical structure. The results showed that the content of soil available nutrients, SOC, microbial biomass carbon and soluble organic carbon in the SR treatments significantly increased compared with those in the CC treatment (<i>p</i> &lt; 0.05), but particulate organic carbon content decreased by 24.89–81.10%. Compared with CC in different years, SR treatments significantly reduced soil humus content. SR in 5, 10 and 15 years of CC cotton fields significantly increased the content of sucrase and decreased that of polyphenol oxidase. Compared with CC fields in different years (5-y, 10-y, 15-y, 20-y), SR increased the relative peak intensity of polysaccharides and decreased the relative peak intensity of alcohols and phenols. Among them, the relative peak intensity of R5-y, R10-y and R20-y aliphatic compounds increased, while that of R5-y, R15-y and R20-y aromatic compounds decreased, and R10-y recalcitrant components (Aliphatic + Aromatic) increased.</p>","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"7 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ecological Risk Assessment of Cu, Ni, Cd, Hg, Zn, Pb and As in Typical Farmland Gray-Brown Desert Soil in China 中国典型农田灰棕色荒漠土壤中铜、镍、镉、汞、锌、铅和砷的生态风险评估
IF 1.4 4区 农林科学
Eurasian Soil Science Pub Date : 2024-07-30 DOI: 10.1134/s1064229324601306
Q. E. Guo, S. Y. Cao, L. L. Nan, B. Dong, Z. B. Zhan, Z. Wang
{"title":"Ecological Risk Assessment of Cu, Ni, Cd, Hg, Zn, Pb and As in Typical Farmland Gray-Brown Desert Soil in China","authors":"Q. E. Guo, S. Y. Cao, L. L. Nan, B. Dong, Z. B. Zhan, Z. Wang","doi":"10.1134/s1064229324601306","DOIUrl":"https://doi.org/10.1134/s1064229324601306","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Heavy metal pollution in soils is a common environmental issue. However, previous studies have primarily investigated the total concentrations of heavy metals, while fraction analysis of heavy metals has rarely been conducted. To bridge this gap, 18 topsoil samples of gray-brown desert farmland soil from the Jinchuan District, Gansu Province, China, were collected to analyze the total concentrations and fractions of Cu, Ni, Cd, Hg, Zn, Pb, and As with the Tessier sequential extraction method that were mainly found in the residual fraction (Pb 50%, As 99%). Ni and Pb were associated with secondary bound to carbonate fractions in most soil samples, while Cd, Hg, and Zn were associated with secondary bound to organic matter fractions. Cu was associated with secondary water-soluble, exchangeable, bound to carbonates, bound to Fe-Mn oxides, and bound to organic matter fractions. The mean values of RAC were in the sequence of Cu &gt; Zn &gt; Cd &gt; Pb &gt; Ni &gt; Hg &gt; As. The results of RSP indicated that the ecological risk levels of Cd, Ni, Cu, Zn, As, and Hg in the soils were low, and Pb was the most significant potential risk factor among all elements. The findings can be used to practice sustainable soil management in the area.</p>","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"15 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141870412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cryogenic-Lateral Hypothesis of the Formation of the Parent Rock of Soddy-Podzolic Soils Using the Example of the Ryshkovo Paleosol (MIS 5e) in the Taneyev Quarry, Kursk Region 以库尔斯克地区塔涅耶夫采石场的雷什科沃古沉积物(MIS 5e)为例,提出索迪-泊松质土壤母岩形成的低温侧向假说
IF 1.4 4区 农林科学
Eurasian Soil Science Pub Date : 2024-07-22 DOI: 10.1134/s1064229324600751
S. A. Sycheva, O. S. Khokhlova, E. G. Ershova, T. N. Myakshina, P. A. Ukrainskiy
{"title":"Cryogenic-Lateral Hypothesis of the Formation of the Parent Rock of Soddy-Podzolic Soils Using the Example of the Ryshkovo Paleosol (MIS 5e) in the Taneyev Quarry, Kursk Region","authors":"S. A. Sycheva, O. S. Khokhlova, E. G. Ershova, T. N. Myakshina, P. A. Ukrainskiy","doi":"10.1134/s1064229324600751","DOIUrl":"https://doi.org/10.1134/s1064229324600751","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">\u0000<b>Abstract</b>—</h3><p>The Ryshkovo paleosol of the Mikulino Interglacial (MIS 5e), Late Moscow loess (MIS 6), and buried small erosional landforms were studied in the Taneyev Quarry of Kursk oblast, in the center of the East European Plain. Macro- and micromorphological and palynological analyses of the soil samples were carried out, and the OSL age and physicochemical properties were determined. The history of erosional landforms, soils, and landscapes was reconstructed on the basis of the facial analysis of the paleosol catena. It was concluded that the differentiation of the paleosol profile into the Ah–E–Bt horizons was developed during the Mikulino Interglacial, whereas the initial heterogeneity of the parent material had been formed earlier, during the Late Moscow (Saalian) Glaciation, under the impact of slope and cryogenic processes. The lithological matrix of the Ryshkovo paleosol did not remain unchanged due to the different history of interaction of eolian and slope (solifluction and colluvial) processes, initial pedogenesis, and interglacial soil formation.</p>","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"25 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141746479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ecological Structure of Soil Nematode Communities of Southern Chukotka 楚科奇南部土壤线虫群落的生态结构
IF 1.4 4区 农林科学
Eurasian Soil Science Pub Date : 2024-07-22 DOI: 10.1134/s1064229324600799
V. D. Migunova, S. B. Tabolin, L. B. Rybalov
{"title":"Ecological Structure of Soil Nematode Communities of Southern Chukotka","authors":"V. D. Migunova, S. B. Tabolin, L. B. Rybalov","doi":"10.1134/s1064229324600799","DOIUrl":"https://doi.org/10.1134/s1064229324600799","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The soil nematode communities in typical tundra soils of southern Chukotka have been analyzed. Five types of shrub and grass-shrub biotopes on Cryosols, Fluvisols, Histosols, Gleysols, and Cambisols were examined. The animals were extracted from the soil by the Baermann technique with subsequent determination of taxonomic diversity, total and relative abundance, and trophic groups. The highest number (7044 individuals/100 g of soil) and biomass (12.15 mg) of nematodes were found in the Histosol, and the minimum one (1000 individuals/100 g of soil; 1.96 mg) of nematodes in the Cryosol. Bacterivorous nematodes dominated in all soil types. The maximum percentage of bacterivorous nematodes (94%) were found in the Cambisol. The percentages of fungivorous nematodes in the studied soils ranged from 1 to 42%. Predatory and omnivorous nematodes were present in all soils except for the litter of the Cambisol. Their percentage ranged from 2 to 32%. Phytonematodes were few, their highest number was found in the Gleysol (18%). The nematode fauna of the soils under analysis differed significantly. The greatest diversity of nematodes was found in the peat horizon of the Fluvisol, and the smallest diversity of nematodes was recorded in the litter of the Cambisol. The values of Sigma Maturity Index ranged between 2 and 3. The Enrichment Index had low and moderate (1.40–41.02) values, and the Structure Index had high values (59.51–84.07). The <i>Eudorylaimus</i> and <i>Plectus</i> genera were eudominants in all soil types. The soil food webs formed in the biocenoses under consideration can be characterized as stable and structured except for the alder biocenosis.</p>","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"338 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141742308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Soil Bacterial Communities in the Affected Zone of Salt Dump (Solikamsk, Perm Krai) 盐场影响区(彼尔姆边疆区索里卡姆斯克)的土壤细菌群落
IF 1.4 4区 农林科学
Eurasian Soil Science Pub Date : 2024-07-22 DOI: 10.1134/s1064229324600805
A. V. Nazarov, Yu. I. Nechaeva, E. S. Korsakova, A. A. Pyankova, E. G. Plotnikova
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