Eurasian Soil Science最新文献_第2页

Composition of Organic Matter and Biological Properties of Eroded and Aggraded Soils of a Small Catchment in the Forest-Steppe Zone of the Central Russian Upland 俄罗斯中部高原森林-草原区小流域侵蚀和侵蚀土壤的有机物成分和生物特性

IF 1.4 4区农林科学

Eurasian Soil Science Pub Date : 2024-09-05 DOI: 10.1134/s106422932460115x

Yu. R. Farkhodov, D. A. Nikitin, N. V. Yaroslavtseva, S. V. Maksimovich, A. R. Ziganshina, I. V. Danilin, V. A. Kholodov, M. V. Semenov, A. P. Zhidkin

{"title":"Composition of Organic Matter and Biological Properties of Eroded and Aggraded Soils of a Small Catchment in the Forest-Steppe Zone of the Central Russian Upland","authors":"Yu. R. Farkhodov, D. A. Nikitin, N. V. Yaroslavtseva, S. V. Maksimovich, A. R. Ziganshina, I. V. Danilin, V. A. Kholodov, M. V. Semenov, A. P. Zhidkin","doi":"10.1134/s106422932460115x","DOIUrl":"https://doi.org/10.1134/s106422932460115x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>The impact of land use and erosion-deposition processes on some physical, chemical, and biological soil properties in a small agricultural catchment in Kursk oblast is analyzed. Plowed Haplic Chernozems and stratozems (Fluvic Chernic Phaeozems (Loamic, Pachic)), as well as unplowed stratozems of a dry valley bottom have been studied. The proportion of large soil aggregates (clods) >10 mm in soils is high on plowed land and low in the dry valley bottom. Differences in the carbon and nitrogen content and in the C/N ratio have not been detected. The analytical pyrolysis has revealed 26 pyrolysates in the composition of soil organic matter (SOM). The relative abundances of pyrrole, pyridine, toluene, and indan among SOM pyrolysates are higher in plowed soils as compared to the soils at the dry valley bottom. Proportions of furfural and methyl furfural among SOM pyrolysates are higher in soils of the dry valley bottom than in plowed soils. Differences in the content of alkanes and phenol are absent. The biomass of microorganisms is mainly formed by fungi (97–99%), and their abundance is greater in soils of the dry valley bottom than in soils of the plowland. Differences in the respiratory activity of the studied soils have not been revealed. The significant influence of erosion-deposition processes and soil cultivation on the spatial heterogeneity of the SOM composition and microbiological parameters is shown. Plowed soils are characterized by the high relative abundance of nitrogen-containing SOM components, while soils at the dry valley bottom have a relatively high abundance of carbohydrate components of mature SOM. The accumulation of fungal biomass and an increase in the structure coefficient in soils of the dry valley bottom indicate the participation of material redeposited from slopes in soil aggregation.","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"62 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225371","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

Erosion Control Measures on Agricultural Land in Russia: A Review 俄罗斯农田水土流失控制措施：综述

IF 1.4 4区农林科学

Eurasian Soil Science Pub Date : 2024-09-05 DOI: 10.1134/s1064229324601173

A. P. Zhidkin, A. V. Khirk, V. N. Shchepotiev, D. V. Fomicheva, D. V. Zhuikov

{"title":"Erosion Control Measures on Agricultural Land in Russia: A Review","authors":"A. P. Zhidkin, A. V. Khirk, V. N. Shchepotiev, D. V. Fomicheva, D. V. Zhuikov","doi":"10.1134/s1064229324601173","DOIUrl":"https://doi.org/10.1134/s1064229324601173","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>One of the important areas of soil erosion science is the development of soil conservation measures. The analysis of published works shows that in Russia most of the techniques and methods to control soil erosion were developed in the 1960s–1980s. In recent decades, interest in scientific and practical developments in this area has been declining. Published data on erosion control measures are poorly systematized, and their generally accepted classification is absent. The typification of erosion-control measures proposed by the authors made it possible to systematize all these measures found in the works and to create their register in the form of a table. Information about the efficiency of erosion control measures is scarce and contradictory. The results of agrotechnical measures are best studied. Non-inversive tillage is the most efficient among agrotechnical measures, it helps to reduce soil erosion by 70–90% according to published data; other agrotechnical measures, on average, reduce the rate of soil erosion by half. Climate change and socioeconomic transformation in the agricultural and industrial complex of Russia in recent decades have led to significant changes in the rate and volume of soil erosion. However, the analysis of literature indicates a shortage of works aimed at adapting existing erosion control measures, or developing new measures with due account for global and regional changes in erosion/deposition processes.","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225372","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

Differential Influence of Soil Organic Carbon and Calcium on the Community of Lumbricid Earthworms as Ecosystem Engineers in Cool Temperate Forests of Hokkaido 土壤有机碳和钙对北海道冷温带森林中作为生态系统工程师的叶蚯蚓群落的不同影响

IF 1.4 4区农林科学

Eurasian Soil Science Pub Date : 2024-08-29 DOI: 10.1134/s1064229324600568

T. Kawakami, K. Makoto

{"title":"Differential Influence of Soil Organic Carbon and Calcium on the Community of Lumbricid Earthworms as Ecosystem Engineers in Cool Temperate Forests of Hokkaido","authors":"T. Kawakami, K. Makoto","doi":"10.1134/s1064229324600568","DOIUrl":"https://doi.org/10.1134/s1064229324600568","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>Earthworms are important ecosystem engineers that stabilize soil aggregates and increase the size of aggregates. The major determinants for the biomass, density, and mean individual weight of lumbricid earthworms are considered to be the availability of soil organic carbon (SOC) and calcium (Ca). However, the importance of SOC and Ca availability for lumbricid earthworms has not been tested simultaneously in the field. In addition, the ripple effects of SOC and Ca on the soil aggregate stability and relative abundance of larger aggregates (mean weight diameter; MWD) via earthworm communities are poorly understood. To fill these knowledge gaps, we conducted field research across a spatially wide range of cool temperate forests, where soils were classified as Cambisols and Andosols and evaluated the relationships among the biomass, density, and mean individual weight of lumbricid earthworms, soil chemical properties, and MWD by conducting structural equation modelling (SEM). Our results showed that SOC affected not the density but the mean individual weight of earthworms. On the other hand, interestingly, exchangeable Ca affected not the mean individual weight but the density of earthworms. These results suggest that SOC stimulates earthworm growth and that exchangeable. Ca enhances the fertility rate and/or survival rate in earthworm communities in forest ecosystems. Furthermore, SOC had a positive ripple effect on the MWD via an increase in the mean individual weight of earthworms. These results suggest that larger earthworms produce larger casts, which bind a larger amount of soil particles thus making larger aggregates.","PeriodicalId":11892,"journal":{"name":"Eurasian Soil Science","volume":"9 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142225230","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

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>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 CaCl2 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 CaCl2, 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 CaCl2. 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 CaCl2. In general, it can be concluded that wood vinegar can provide more K to the plants without dissolving K-bearing minerals compared to CaCl2. In addition, soil heating can influence the process of K release and fixation in K-depleted soils.","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>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.","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>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 Gemmatimonas, Enhygromyxa, Rhizobium, Steroidobacter, and Bacillus, decreased the relative abundance of Pseudomonas, Bradyrhizobium, Nocardioides, and Solirubrobacter. The relative abundance of Nocardioides demonstrated a significant negative correlation with ({text{NO}}_{3}^{ - }), Cl–, and available Fe, Cu, and Zn levels. Conversely, Pseudomonas abundance showed a significant positive correlation with soil pH but a negative correlation with ({text{NO}}_{3}^{ - }), ({text{HCO}}_{3}^{ - }), ({text{SO}}_{4}^{{2 - }}), Cl–, Ca2+, Na+, K+, and available Fe, Cu, and Zn levels. These findings suggested that the reduced abundance of Nocardioides and Pseudomonas may contribute substantially to the continuous cropping challenges observed in the three vegetable crops studied.","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

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>We measured dark CO2 fluxes and CH4 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 CO2 fluxes (Rtot), soil CO2 emission (Rsoil), and heterotrophic respiration (Rhet) were 26 ± 5, 14 ± 3 and 12 ± 3 mg C m–2 h–1, respectively, The annual cumulative fluxes Rtot, Rsoil and Rhet equal to 234, 127 and 103 g C m–2 y–1, respectively. The contribution of Rsoil to Rtot, and Rhet to Rsoil varied significantly over the study period, with no clear relationship to seasonal dynamics. The observed low CO2 fluxes may be due to soil salinization resulting from wastewater flooding. The fluxes of CH4 were observed in the flooded plot, with peaks up to 370 µg C m–2 h–1. The fluxes of CH4 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 CH4 transport. Unlike CH4 fluxes, CO2 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.","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

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>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.","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

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>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 (p < 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.","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>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 > Zn > Cd > Pb > Ni > Hg > 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.","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