Catena最新文献

{"title":"Understanding the geochemical composition of alluvial sediments in a complex environmental system – A case study of the Mura/Mur river","authors":"Čeplak Barbara ,&nbsp;Moser Ulrike ,&nbsp;Irrgeher Johanna ,&nbsp;Šala Martin ,&nbsp;Kralj Polona ,&nbsp;Žibret Gorazd","doi":"10.1016/j.catena.2024.108605","DOIUrl":"10.1016/j.catena.2024.108605","url":null,"abstract":"<div><div>The study provides a comprehensive investigation of the geochemical properties of stream and alluvial sediments in an area characterised by a complex natural (geochemical) and anthropogenic environment of the transboundary Mura River (Austria, Slovenia, EU). A total of 65 sediment samples from active river channel and tributaries, and 59 samples from 6 floodplain sediment profiles were collected and analysed. ICP–MS analysis was used to determine the levels of 59 elements in two fractions (&lt;0.063 and 0.063–0.125 mm). Natural (geological) and anthropogenic factors influencing the elemental composition were determined. The sediments showed a low degree of weathering in the upper part of the river and a moderate degree in the middle and lower parts. They are enriched with As, Co, Cr, Cu, Mo, Ni, and Sb compared to the median values for the European stream and floodplain sediments. This can be a consequence of the presence of natural ore mineralisation in Upper Styria along with related lithological features. Factor analysis revealed four natural geochemical associations (K–Ba–Rb–Ga–Li–Tl–Cs–Be–Al–Cu–V; Th–YREE–U; Zr–Hf–Nb; Na–Sr), one anthropogenic association (Cd–In–Zn–Pb) and two combined (geogenic and anthropogenic) associations (Ni–Cr–Mg–Co–V and Fe–Sc–Ti–Nb). Particle analysis by SEM/EDS was used to identify characteristic carriers of specific elements and potentially to determine their sources.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108605"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From rock to bottle: strontium isotopes (87Sr/86Sr) as indicator of provenance for the volcanic wines of altitude from São Joaquim, southern Brazil","authors":"Erico Albuquerque Santos ,&nbsp;Luana Moreira Florisbal ,&nbsp;Ross Stevenson ,&nbsp;David Widory ,&nbsp;Denilson Dortzbach ,&nbsp;Bruna Saar de Almeida ,&nbsp;Arcângelo Loss","doi":"10.1016/j.catena.2024.108624","DOIUrl":"10.1016/j.catena.2024.108624","url":null,"abstract":"<div><div>Studies worldwide, particularly in Canada, Italy and Brazil, have demonstrated that the ⁸⁷Sr/⁸⁶Sr ratio is a reliable indicator of the geographic origin of wines. We present here the first ⁸⁷Sr/⁸⁶Sr isotope study for the <em>Wines of Altitude of Santa Catarina</em> geographical indication that was recently created in the state of Santa Catarina, southern Brazil. The goal of this study is to evaluate the forensic application of strontium isotope ratios as an indicator of provenance for the wines of São Joaquim, the main wine-growing region in the state of Santa Catarina, which produces wines from European grape varieties (<em>Vitis vinifera L.</em>) grown in soils formed by the weathering of volcanic rocks of the Serra Geral Group (Paraná Magmatic Province). The ⁸⁷Sr/⁸⁶Sr of rocks, soils (bulk and labile fractions), vines (leaves and grapes) and wines (Sauvignon Blanc and Cabernet Sauvignon) from three wineries from São Joaquim were determined. Bedrock ⁸⁷Sr/⁸⁶Sr ratios ranged from 0.705362 for the basaltic-andesitic rocks to 0.724819 for dacites, consistent with reported values for these types of rocks. We identified a strong correlation between the ⁸⁷Sr/⁸⁶Sr ratios of the grapes and leaves, but in contrast to most previous studies there was no correlation between those of the soil (both bulk and labile fractions) and wine samples. This indicates that although the Sr isotopes in grapes and leaves behaved conservatively, the Sr isotopes in the soils may have been modified by vineyard agricultural practices, such as fertilization and liming. We thus recommend that soil sampling be done at depths &gt;60 cm to avoid external addition of strontium. As the ⁸⁷Sr/⁸⁶Sr ratios of commercial wines represent the average isotope ratio of a given vineyard, the isotope correlation between wines and the other samples may be challenging. Despite that, it was possible to distinguish the ⁸⁷Sr/⁸⁶Sr ratios of the wines from São Joaquim, state of Santa Catarina, from the wines from Bento Gonçalves, state of Rio Grande do Sul. Even though the wines from both regions are made from grapes cultivated in the same geological unit, i.e., volcanic rocks from Serra Geral Group (Paraná Magmatic Province), the wines yield different Sr signatures.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108624"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Precipitation addition during growing and non-growing seasons interactively affects the abundance of soil nematode communities in a semi-arid steppe","authors":"Yaning Li ,&nbsp;Jingwei Guo ,&nbsp;Xun Wang,&nbsp;Taohui Lian,&nbsp;Rong Yuan,&nbsp;Jiarui Feng,&nbsp;Cancan Zhao,&nbsp;Renhui Miao,&nbsp;Yinzhan Liu","doi":"10.1016/j.catena.2024.108686","DOIUrl":"10.1016/j.catena.2024.108686","url":null,"abstract":"<div><div>Changes in precipitation profoundly affect the abundance and structure of soil nematode communities. However, many prior studies have focused mainly on examining how alterations in precipitation during the growing season affect the soil nematode community, and little researches in recent years focus on the impact of non-growing season precipitation (snow cover) on nematodes. We conducted a manipulative experiment in a semi-arid steppe to investigated the effects of precipitation addition during growing season and non-growing season and their interaction on the abundance of total soil nematode community and different trophic groups. The results indicated that (1) growing season precipitation addition significantly increased the total soil nematode community and four diverse nematode trophic groups abundances, because of the function of growing season precipitation addition on soil total nitrogen, soil ammonium nitrogen, and soil water contents; (2) non-growing season precipitation addition reduced bacterivores abundance and elevated fungivores and plant parasites abundance because of the precipitation-induced low temperature and variations of the resource availability; and (3) growing season and non-growing season precipitation addition interactively affected soil nematode community abundance. Effect of growing season precipitation addition on the abundance of nematode community under non-growing season precipitation addition treatment (29.6%) was significantly higher than that of without non-growing season precipitation addition treatment (11.1%). Our study provides insights into the functions of seasonal precipitation changes on nematode community abundance and helps forecast responses to seasonal precipitation changes in the soil micro-food web under global change scenarios.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108686"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"15 years ecohydrological long-term monitoring of the artificial catchment Chicken Creek – A brief summary","authors":"Annika Badorreck","doi":"10.1016/j.catena.2024.108663","DOIUrl":"10.1016/j.catena.2024.108663","url":null,"abstract":"<div><div>Ecosystems exhibit a highly complex nature and have been dynamically changing by linked abiotic and biotic factors such as climate, vegetation and soil fauna. Owning to the actions and feedbacks of these factors, ecosystems show an inherent degree of locally heterogeneous properties and structures at multiple spatial and time scales.</div><div>Here, the artificial catchment “Chicken Creek” represents a unique and outstanding site to study an ecosystem at the initial stage of development. The hydrologic catchment is located about 20 km south of the city Cottbus (Germany). The approximately 6-ha catchment area was built in 2005 of coarse-textured quaternary sediments from the adjacent brown coal mine and forms a back- and foot-slope that flattens out to a pond. A clay liner of 2–3 m thickness seals the catchment at the bottom, which allows the formation of a local water body fed only by precipitation. After construction the site was left to an unrestricted and unmanaged succession.</div><div>To track the several ecosystem processes and newly emerging structures the Chicken Creek catchment is equipped with a comprehensive ecological monitoring network. A network of more than 40 wells and two weirs recording the groundwater levels, flows of water and elements. Three weather stations observing meteorological parameters. Annual aerial pictures and vegetation monitoring revealing the floral colonisation of the area. This contribution describes the diverse and extensive working program as well as presents highlights of 15 years ecological monitoring in the catchment area.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108663"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143180660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ground thermal regime changes caused by integrated warming, wetting, and greening in permafrost regions of the Qinghai-Tibetan Plateau","authors":"Guo Linmao,&nbsp;Wang Genxu,&nbsp;Song Chunlin,&nbsp;Sun Shouqin,&nbsp;Li Jinlong,&nbsp;Li Kai,&nbsp;Ma Jiapei","doi":"10.1016/j.catena.2024.108658","DOIUrl":"10.1016/j.catena.2024.108658","url":null,"abstract":"<div><div>The Qinghai-Tibetan Plateau (QTP) has experienced significant warming, wetting, and greening since the 1980s, altering the thermal regime of the frozen ground and associated geomorphological and ecological processes. Previous studies focused mainly on the long-term warming effects on permafrost, but the synergistic effects of seasonal variations in temperature, precipitation, and vegetation remain unclear. This study, focusing on the source regions of the Yangtze River in the QTP, used a distributed process-based model integrated with the fuzzy k-means method to explore the impact of temperature, precipitation, and leaf area index (LAI) on frozen ground. Findings reveal that cold-season (October-April) warming affects permafrost degradation 1.66 times more than warm-season (May-September) warming. A unit increase in LAI during the warm-season results in a 2.99 cm rise in ALT, whereas MFD increases by 30.28 cm. The wetting climate, particularly in the warm-season, mitigates permafrost degradation. A 100 mm increase in warm-season precipitation decreases ALT by an average of 0.135 m, and the same increase during the cold-season decreases MFD by 0.095 m. The study also reveals that transition permafrost is most sensitive to temperature changes, while unstable permafrost is less affected but more influenced by precipitation. Greening vegetation predominantly affects the thermal regimes of frozen ground in high-altitude regions. Overall, air temperature remains the primary driver of changes in the thermal regimes of frozen ground.</div></div><div><h3>Plain language summary</h3><div>Permafrost is the subsurface material that stays frozen for at least two consecutive years. The degradation of permafrost will affect geomorphological and ecological processes. Here, we employ a process-based, hydro-thermal coupled hydrological model to evaluate how changes in air temperature, precipitation, and leaf area index affect frozen ground thermal regimes. Results show that permafrost degradation is more sensitive to cold-season warming than warm-season warming. Greening vegetation has a greater impact on seasonally frozen ground than on permafrost. Increased precipitation mitigates permafrost degradation but accelerates the degradation of seasonally frozen ground. Rising air temperatures remain the primary driver of permafrost degradation.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108658"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143180662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Elevational patterns in the diversity and composition of soil archaeal and bacterial communities depend on climate, vegetation, and soil properties in an arid mountain ecosystem","authors":"Zhihao Zhang ,&nbsp;Yan Lu ,&nbsp;Li Li ,&nbsp;Fanjiang Zeng ,&nbsp;Xiangyi Li ,&nbsp;Lei Li ,&nbsp;Jian Yue","doi":"10.1016/j.catena.2024.108679","DOIUrl":"10.1016/j.catena.2024.108679","url":null,"abstract":"<div><div>The continuous changes in climate, vegetation, and soil properties along elevational gradients provide a space-for-time method for probing the mechanisms behind the generation and maintenance of biodiversity. However, elevational patterns of soil microbial communities along elevational gradients and their driving mechanisms in arid mountain are poorly understood. The metagenomics technique was employed to examine the α-diversity and community composition of soil archaea and bacteria along elevational gradients ranging from 1707 to 3548 m in Mt. Middle Kunlun, China. The number of bacterial sequences was significantly higher than that of archaeal sequences, and the dominant phyla and genera in both communities showed significant differences in abundance across elevations. The α-diversity (Shannon index) displayed a monotonically increasing pattern for bacteria and a hump-shaped pattern for archaea, while the community composition of both archaea and bacteria demonstrated a similar hump-shaped trend. The community composition of archaea and bacteria were influenced by elevation via precipitation, vegetation, and soil properties. However, the underlying factors for these two microbial communities were different. Environmental-physiological constraints (e.g., soil water content and pH) were determined to be the main drivers of archaeal community composition. Bacterial community composition was primarily influenced by vegetation factors (such as plant diversity and cover) and soil nutrients (such as available nitrogen). This research offers a thorough examination of the biogeography of soil microbes in precipitation-sensitive or arid mountain ecosystems.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108679"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How grasses stabilize soil organic carbon in aggregates of semi-arid ecologically restored land: Evidence from 13C natural abundance","authors":"Vikas Kumar Singhal ,&nbsp;Avijit Ghosh ,&nbsp;Amit K. Singh ,&nbsp;Yogeshwar Singh ,&nbsp;Siddhartha Sankar Biswas ,&nbsp;Deepak Ojha ,&nbsp;Ranjan Bhattacharyya","doi":"10.1016/j.catena.2024.108627","DOIUrl":"10.1016/j.catena.2024.108627","url":null,"abstract":"<div><div>Land restoration with grasses is suitable for boosting soil organic carbon (SOC) and biomass productivity. For developing better restoration policies to preserve or increase SOC stock and ecosystem function, a deeper knowledge on the impact of various grasses on SOC dynamics in restored land is required. Here, long-term SOC sequestration was assessed by investigating aggregate-associated carbon (C) and ¹³C natural abundance following land restoration with <em>Cenchrus ciliaris</em>, <em>Panicum maximum</em>, <em>Chrysopogon fulvus</em>, <em>Heteropogon contortus</em>, <em>Sehima nervosum</em>, and <em>Vetiveria zizanioides</em> grasses in semi-arid India. Among the grasses, <em>C. ciliaris</em>, <em>H. contortus</em>, and <em>S. nervosum</em> improved the proportion of large macroaggregates from 5 to 21 % at the surface and from 1.7 to 12.3 % in the subsurface layer, while the proportion of microaggregates declined significantly (P &lt; 0.05). The higher δ¹³C values of small macroaggregates (SM) indicated greater C stabilization within the microaggregates under all grasses. The SM could protect ∼22–33 % and 8–15 % of total SOC in land restored with <em>C. ciliaris</em>, <em>H. contortus</em>, and <em>S. nervosum</em> at the surface and the subsurface soil, respectively<em>.</em> However, the roots of <em>C. ciliaris</em>, <em>H. contortus</em>, and <em>S. nervosum</em> contributed to ∼12.66–13.75 % and 2.22–11.24 % of SOC in those layers, respectively. The direction of C transfer was from macroaggregates to microaggregates in soils under <em>C. cilirais</em>, <em>S. nervosum</em>, and <em>H. contortus.</em> This C flow direction could explain greater SOC stabilization than other grasses. The greater amount of aggregate-protected C under these grasses was linked to their greater root biomass, density, and decay rate. In contrast, C transfer from microaggregates to macroaggregates under <em>P. maximum</em>, <em>C. fulvus</em>, and <em>V. zizanioides</em> could result in poor C stabilization. Thus, <em>C. ciliaris</em>, <em>H. contortus</em>, and <em>S. nervosum</em> could be potential options for SOC sequestration in semi-arid ecosystems.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108627"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of sugarcane cultivation on the geochemistry of rare earth elements in Cretaceous rhyolite-derived soils, Northeastern Brazil","authors":"Stephany Alves Brilhante ,&nbsp;Ygor Jacques Agra Bezerra da Silva ,&nbsp;Artur Henrique Nascimento Silva ,&nbsp;Priscila Lira de Medeiros ,&nbsp;Camila Victória da Silva Brazil ,&nbsp;Clístenes Williams Araújo do Nascimento ,&nbsp;Yuri Jacques Agra Bezerra da Silva ,&nbsp;Rayanna Jacques Agra Bezerra da Silva ,&nbsp;Tiago Osório Ferreira ,&nbsp;Xosé Lois Otero ,&nbsp;Marilya Gabryella Sousa ,&nbsp;Valdomiro Severino Souza Junior","doi":"10.1016/j.catena.2025.108700","DOIUrl":"10.1016/j.catena.2025.108700","url":null,"abstract":"<div><div>Rare earth elements (REEs) have recently been identified as emerging pollutants, with phosphate fertilizers representing a significant source of their introduction into agricultural soils. Brazil is the world’s foremost producer of sugarcane, the most prevalent agricultural crop in the Cabo Basin. Nevertheless, despite the region’s significance, no studies have yet addressed REE concentrations in the agricultural soils of this region. This research explored the geochemistry of rare earth elements (REEs) in rhyolite-derived soils that have been under intensive sugarcane cultivation since 1930 has resulted in soil contamination. Furthermore, the study examined the influence of soil properties on REE geochemistry. The higher concentration of REEs on the surface of soils under sugarcane cultivation, in comparison to the absence of REE enrichment in preserved areas, indicates that agricultural activities contribute to the accumulation of REEs in the Cabo Basin. Significant increases in the enrichment factors for Sm, La, Pr, Nd, Gd, Tb, Ho, Lu, and Y were observed in soils utilized for sugarcane cultivation. Cluster analysis effectively identified the enrichment of REEs in agricultural soils. The geochemical behavior of light rare earth elements (LREEs) was not influenced by soil properties. However, heavy rare earth elements (HREEs) demonstrated a robust positive correlation with pH, CEC, and OC. The chemical and mineralogical composition of the parent material exerts a pronounced influence on REE concentrations in the soils. These findings play a critical role in predicting and mitigating the prospective effects of REE accumulation due to agricultural activities and underscore the urgent necessity for specific legislation in Brazil to regulate REE levels in soils.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108700"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143181602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An objective methodology for waterlogging risk assessment based on the entropy weighting method and machine learning","authors":"Atila Bezdan ,&nbsp;Jovana Bezdan ,&nbsp;Monika Marković ,&nbsp;Dejan Mirčetić ,&nbsp;Aleksandar Baumgertel ,&nbsp;Andrea Salvai ,&nbsp;Boško Blagojević","doi":"10.1016/j.catena.2024.108618","DOIUrl":"10.1016/j.catena.2024.108618","url":null,"abstract":"<div><div>Waterlogging disasters are one of the most severe and widespread agricultural meteorological disasters. They affect about 15% of land surface globally, causing a significant reduction in crop growth and yields. This paper presents an objective methodology for assessing waterlogging risk, primarily in non-urban, predominantly agricultural areas. The waterlogging risk was assessed by evaluating vulnerability and hazard based on key environmental, anthropogenic, and climatic factors. The weights of factors affecting the waterlogging vulnerability were determined using the entropy weight method (EWM), assuring the objectivity of the overall evaluation results. The obtained waterlogging risk map was validated by comparing it with observed and detected waterlogged sites using Sentinel-2 imagery and Random Forest classification. The key novelties of this study are the use of the entropy weight method to objectively determine the relative importance of factors influencing waterlogging vulnerability, and a two-step validation process which includes field-based comparison and remote sensing validation. The presented methodology was demonstrated in the Vojvodina region, Serbia. The following waterlogging vulnerability factors were used: soil properties, geomorphology, surface depressions, average phreatic water table depth, and land cover. The EWM shows that surface depressions and soil properties have the most significant influence on waterlogging vulnerability. The highest waterlogging hazard classes occur in about 31% of the analyzed territory. The waterlogging hazard was estimated based on water balance for the non-vegetation season and maximum daily precipitation in spring, both modeled using the Generalize Extreme Value distribution function. The highest waterlogging hazard classes occur in about 31% of the analyzed territory. The final risk map shows that the high waterlogging risk occurs in about 11% of the territory. Those are mainly areas in the central, eastern, and southeastern parts of the Vojvodina region, usually along the main watercourses. High agreement between the detected waterlogged areas and the produced waterlogging risk map was achieved, validating the proposed methodology. The presented waterlogging risk assessment methodology is valuable for planning and policy-making for various water management and environmental activities. Although it is demonstrated in Vojvodina, by selecting the appropriate factors of vulnerability and hazard, it can be applied to any other region.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108618"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mineral, molecular composition and ecosystem type jointly determine the stability of soil organic carbon on the Qinghai-Tibetan Plateau","authors":"Jun Gu ,&nbsp;Dongxue Li ,&nbsp;Fei Yang ,&nbsp;Xiao-Dong Song ,&nbsp;Ke-Yang Gong ,&nbsp;Gan-Lin Zhang","doi":"10.1016/j.catena.2024.108638","DOIUrl":"10.1016/j.catena.2024.108638","url":null,"abstract":"<div><div>The magnitude of soil organic carbon (SOC) response to climate warming is contingent upon its stability. However, due to limited data, the spatial patterns and drivers of SOC stability remain unclear, particularly in alpine regions. Thermal analysis reveals the energy density of SOC, thus indirectly reflecting its stability. This study utilized the thermogravimetric index (TG-T50) to quantify the thermal stability of SOC and employed Nuclear Magnetic Resonance spectroscopy to characterize its molecular composition across the Qinghai-Tibetan Plateau (QTP). SOC thermal stability was found to decrease from the northwest to the southeast of the QTP. A strong positive correlation was observed between SOC thermal stability and molecular composition (r = 0.71, <em>P</em> &lt; 0.001). Structural equation modeling results indicated that ecosystem type was the most important factor influencing SOC thermal stability, followed by mineral and climate variables. Changes in ecosystem type not only alter the quality of soil carbon inputs but also involve variations in climate and soil properties, thereby affecting SOC stability. Those findings highlight that SOC stability is an ecosystem-dependent property. The results show that SOC thermal stability is governed by its molecular composition, mineral protection, and ecosystem type in the QTP. These findings provide substantial evidence towards a more comprehensive understanding of SOC stability on the QTP and assist in predicting the dynamic changes of SOC in response to climate change.</div></div>","PeriodicalId":9801,"journal":{"name":"Catena","volume":"249 ","pages":"Article 108638"},"PeriodicalIF":5.4,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143182402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}