Limnology and Oceanography最新文献

{"title":"Seasonally migrating zooplankton strongly enhance Southern Ocean carbon sequestration","authors":"Guang Yang, Angus Atkinson, Evgeny A. Pakhomov, Katrin Schmidt, Weilei Wang, Jennifer J. Freer, Geraint A. Tarling","doi":"10.1002/lno.70120","DOIUrl":"https://doi.org/10.1002/lno.70120","url":null,"abstract":"High‐latitude zooplankton can sequester millions of tons of carbon due to their seasonal migration from the surface ocean to depth, and their respiration and mortality during overwintering. This seasonal vertical migration pump (SVMP) efficiently removes carbon but not limiting nutrients such as iron from the surface layers. However, this process is not included in Earth System Models and whole Southern Ocean estimates are still lacking. Here, we compile large datasets of Southern Ocean zooplankton biomass and physiology to estimate that the SVMP transports 65 Mt carbon annually to sequestration‐achieving depths of > 500 m. Mesozooplankton are the main agents (80%), followed by krill (14%), and salps (6%), with respiration and mortality at depth contributing a similar share. This SVMP adds greatly to existing modeled or measured estimates of Southern Ocean carbon sequestration, equating to 38–56% of particulate organic carbon flux at 500 m and 78–103% of the flux at 1000 m. Given their large biomass but projected change under polar warming, understanding how zooplankton transport carbon and nutrients will underpin improved model projections of ocean carbon storage in a warmer world.","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"242 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Carbon dioxide fluxes of Arctic coastal ecosystems controlled by seasonal patterns of land‐to‐ocean connectivity","authors":"Alina C. Spera, Vanessa L. Lougheed","doi":"10.1002/lno.70101","DOIUrl":"https://doi.org/10.1002/lno.70101","url":null,"abstract":"The strength of coastal Arctic Ocean CO<jats:sub>2</jats:sub> uptake is vulnerable to landscape‐scale changes such as hydrological intensification, changing climate, and alterations to terrestrial and aquatic biogeochemistry. Across a period of 4 yr (2019–2023) and three distinct sampling periods, we visited five coastal ecosystems of the Beaufort Sea with varying barrier island coverage to understand drivers of Arctic coastal CO<jats:sub>2</jats:sub> flux. The ice cover sampling period was characterized by the highest pCO<jats:sub>2</jats:sub> saturation and dissolved O<jats:sub>2</jats:sub> undersaturation. We observed a &gt; 100 <jats:italic>μ</jats:italic>atm difference in pCO<jats:sub>2</jats:sub> over shallow depths (up to 2 m) at 73% of ice‐cover site visits. Notably, the geomorphology of barrier islands and channels controlled the flushing of colder Beaufort Sea waters across the systems and influenced the strength and appearance of both vertical thermohaline and pCO<jats:sub>2</jats:sub> stratification. The ice breakup period reflected spring freshet and was a net CO<jats:sub>2</jats:sub> sink during sampling, likely related to freshwater riverine dilution, CaCO<jats:sub>3</jats:sub> dissolution from sea ice melt, and water column algal activity. During the open water sampling period, the interaction of marine and terrestrial contributions predicted the strength of the CO<jats:sub>2</jats:sub> efflux, with freshwater inputs introducing higher temperatures and organic material, which increased remineralization. The capacity of these systems to act as CO<jats:sub>2</jats:sub> sources or sinks varies throughout the year and is largely driven by geomorphic conditions. Any spatially integrative studies of CO<jats:sub>2</jats:sub> flux or coastal productivity should consider the physical and biogeochemical heterogeneity of Arctic coastal ecosystems.","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"12 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Distributions of Protactinium‐231 and Thorium‐230 confirm the critical influence of meridional overturning circulation in the Indian Ocean","authors":"Yijie Zheng, Yiming Luo, Pinghe Cai, Shouye Yang, Roger Francois","doi":"10.1002/lno.70111","DOIUrl":"https://doi.org/10.1002/lno.70111","url":null,"abstract":"Sedimentary <jats:sup>231</jats:sup>Pa/<jats:sup>230</jats:sup>Th has been used as a proxy for understanding changes in ocean circulation and productivity over the last glacial–interglacial cycle. Its application relies on the influence of meridional overturning circulation (MOC) and particle scavenging on the distribution of <jats:sup>231</jats:sup>Pa and <jats:sup>230</jats:sup>Th in the water column and sediments. While previous studies have addressed the role of MOC on the <jats:sup>230</jats:sup>Th and <jats:sup>231</jats:sup>Pa water profiles and sedimentary <jats:sup>231</jats:sup>Pa/<jats:sup>230</jats:sup>Th in the Atlantic and Pacific Oceans, including the influence of boundary scavenging in the latter, the impact of these processes in the Indian Ocean remains unresolved. This study employs a two‐dimensional scavenging model with prescribed overturning schemes to simulate the latitudinal distribution of <jats:sup>230</jats:sup>Th and <jats:sup>231</jats:sup>Pa in the water column and sediments of the Indian Ocean. The water column profiles of both nuclides deviate from linearity, reflecting the influence of deep convection, advection, and upwelling controlled by MOC. Additionally, bottom scavenging within the nepheloid layer and boundary scavenging significantly depletes <jats:sup>231</jats:sup>Pa in the Madagascar Basin. The gradual decrease in sediment <jats:sup>231</jats:sup>Pa/<jats:sup>230</jats:sup>Th below 1500 m in the main basins is primarily linked to MOC, while boundary scavenging contributes to systematically lowering the <jats:sup>231</jats:sup>Pa/<jats:sup>230</jats:sup>Th. These findings point to the potential of sedimentary <jats:sup>231</jats:sup>Pa/<jats:sup>230</jats:sup>Th as a proxy for studying the alteration of deep ocean circulation and particle flux in the Indian Ocean.","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"624 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144328704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unexpectedly stable soil organic carbon in tidal marshes under combined nitrogen loading and increased inundation compared to individual effects","authors":"Tianning Fan, Jiafang Huang, Guopeng Liang, Shengen Liu, Dehong Hu, Lifei Su, Yi Liu, YuanBin Cai, Shihua Li, Pingping Guo, Min Luo, Chuan Tong","doi":"10.1002/lno.70105","DOIUrl":"https://doi.org/10.1002/lno.70105","url":null,"abstract":"Tidal marshes serve as critical carbon (C) sinks, yet face increasing threats from global environmental changes. While previous research has documented how nitrogen (N) loading and sea‐level rise affect total C pools individually, their impacts on soil organic carbon (SOC) stabilization remain critically underexplored, particularly when these factors co‐occur in tidal marsh ecosystems. Through a 3‐yr field experiment, we analyzed how these factors, alone and combined, impact SOC stabilization by examining SOC fraction dynamics. Results showed that N loading increased particulate organic carbon (POC) by 18% and decreased mineral‐associated organic carbon (MAOC) by 13%, reducing SOC stabilization. Conversely, increased inundation raised MAOC by 31% and decreased POC by 19%, promoting SOC stabilization. The decreased MAOC under N loading stemmed from reduced fungal necromass C, while the increased POC related to lower phenol oxidase activity. In contrast, with increased inundation, MAOC rose due to iron‐bound organic C (Fe‐OC) accumulation, while POC declined from increased phenol oxidase activity. When both factors were applied together, SOC stabilization remained at control levels. This occurred because the combined effect maintained oxidative enzyme activities and thus retained POC levels. The simultaneous reduction in fungal necromass C and enhancement of Fe‐OC associations established complementary mechanisms that maintained MAOC at levels equivalent to control. Our findings reveal that N loading and increased inundation drive contrasting patterns of SOC stabilization, while their combination produces uniquely stabilized C dynamics. This insight challenges single‐factor predictions and underscores the importance of multi‐factor experiments in understanding ecosystem responses under concurrent global change scenarios.","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"51 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144278315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inundation of different river bank heights influences organic matter concentrations and zooplankton abundance","authors":"James N. Hitchcock, Andrew J. Brooks, Tim Haeusler, Paul J. McInerney, Dane F. Parsons, Ross M. Thompson","doi":"10.1002/lno.70109","DOIUrl":"https://doi.org/10.1002/lno.70109","url":null,"abstract":"Regulation and water extraction change flow regimes in lowland rivers, affecting ecosystem functions and wetting patterns of riverbanks. River connectivity to lateral environments is crucial for organic matter cycling and the life cycles of diapausing microinvertebrates. While extreme hydraulic periods (floods and cease‐flow) are well‐studied, the impact of small to medium flows on riverine carbon flux is less understood. We conducted a mesocosm study to examine litter, nutrient, and zooplankton contributions from different bank heights in the Mehi River, Australia. Sediment from three bank heights (lower, lower + middle, and lower + middle + upper) was added to 1000 L mesocosms. Upper bank heights had more organic matter, leaf litter, and live plant coverage. Sediment from upper and middle banks increased organic carbon and phosphorus concentrations. Zooplankton abundance was higher in treatments with upper bank sediment compared to lower bank sediment. Zooplankton communities varied, with rotifer taxa including <jats:italic>Keratella valga</jats:italic> and <jats:italic>Filinia passa</jats:italic> in upper bank treatments. We estimated zooplankton biomass contributions under current regulated hydrology and compared them to a predevelopment scenario without water extraction. Regulation has reduced zooplankton input from banks by about 8.8%. Inundating higher banks increases carbon and microinvertebrate availability for food webs compared to only inundating lower sections. These findings inform effective flow management strategies and highlight how targeted environmental water use can enhance lowland river ecosystem productivity.","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"1 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144278408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exotic plant invaders as ecosystem engineers: Impacts on blue carbon accumulation by altering carbon emissions and thermal responses","authors":"Guangliang Zhang, Junhong Bai, Jichen Qiu, Yuhao Xu, Yujia Zhai, Shengrui Wang","doi":"10.1002/lno.70076","DOIUrl":"https://doi.org/10.1002/lno.70076","url":null,"abstract":"Exotic plant invaders frequently function as ecosystem engineers, significantly influencing carbon cycling within native ecosystems. However, the impact of invasive species on carbon emissions and the thermal response of belowground soil organic carbon (SOC) decomposition has not been thoroughly examined. This gap in knowledge poses challenges for managing blue carbon sequestration in coastal salt marshes threatened by invasive plants. Here, we conducted both field investigations and microcosm experiments to assess the effects of a decade‐long invasion by <jats:italic>Sporobolus alterniflorus</jats:italic> on soil CO<jats:sub>2</jats:sub> emissions, SOC decomposition rates, and their sensitivity to temperature variation (<jats:italic>Q</jats:italic><jats:sub>10</jats:sub>). Our results showed that the CO<jats:sub>2</jats:sub> emission and its <jats:italic>Q</jats:italic><jats:sub>10</jats:sub> from invaded soils were generally lower compared to native soils. Changes in soil pH, soil water content, and the ratio of dissolved organic carbon (DOC) to SOC attributable to plant invasion greatly affected CO<jats:sub>2</jats:sub> emission, SOC decomposition, and <jats:italic>Q</jats:italic><jats:sub>10</jats:sub>. Microcosm experiments verified the reduced SOC decomposition rates and <jats:italic>Q</jats:italic><jats:sub>10</jats:sub> values in invaded soils. Additionally, <jats:italic>Q</jats:italic><jats:sub>10</jats:sub> showed a significant negative correlation with the proportion of labile carbon in soils, supporting the carbon‐quality temperature hypothesis to explain the observed changes in <jats:italic>Q</jats:italic><jats:sub>10</jats:sub> after plant invasions. Overall, our findings suggest that decreased CO<jats:sub>2</jats:sub> emissions and SOC decomposition rates are critical processes driving rapid SOC accumulation in coastal salt marshes following the invasion of <jats:italic>S. alterniflorus</jats:italic>. These results enhance our understanding of SOC sequestration dynamics in coastal blue carbon ecosystems in the context of exotic plant invasions.","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"151 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144278295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Phosphorus enrichment increases the prevalence of a microsporidian parasite in experimental Daphnia populations","authors":"Scott Binger, Madison Stokoski, Charlotte F. Narr","doi":"10.1002/lno.70108","DOIUrl":"https://doi.org/10.1002/lno.70108","url":null,"abstract":"Nutrient availability can influence the population size of primary consumers and their parasites, but identifying the mechanisms responsible for nutrient‐induced shifts in parasite population sizes is challenging. Parasites of consumers may respond to complex feedbacks between consumers and their resources via shifts in both within‐ and between‐host processes. We investigated these effects by allowing well‐studied host–parasite (<jats:italic>Daphnia</jats:italic>‐microsporidian) and consumer–resource (<jats:italic>Daphnia</jats:italic>‐algae) systems to respond to phosphorus (P) manipulation in mesocosms. We quantified consumer–resource dynamics by measuring the effects of our P additions on algal %P and algal and host density at regular intervals. After 60 d, we measured total parasite population size, infection prevalence, and individual parasite load. Because our microsporidian parasite transmits via multiple routes and achieves higher loads in vertical (from mothers to offspring) than horizontal (via ingestion of spores) infections, we could indirectly assess the effect of nutrient additions on the number of new horizontally transmitted infections, and, by proxy, qualitatively evaluate nutrient effects on within‐host processes relative to those on between‐host processes (i.e., horizontal transmission). We found positive associations of total parasite population size, prevalence, and parasite load with algal %P. In addition, parasite load was negatively associated with algal density. We could not detect a relationship between any of the parasite responses and host density. Our experiment shows how nutrient additions can enhance parasite prevalence in ways that may not be directly mediated by host density and that within‐host processes can play a critical role in shaping the responses of entire parasite populations to nutrient additions.","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"42 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144278409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Disentangling the effects of climate change in a mountain lake through community structure analysis","authors":"Giulia Bertoletti, Marco Scotti, Giampaolo Rossetti, Antonio Bodini","doi":"10.1002/lno.70106","DOIUrl":"https://doi.org/10.1002/lno.70106","url":null,"abstract":"Pressures of climate change may trigger regime shifts in ecosystems. Identifying signs of these pressures before the critical transition remains challenging, and it could be useful to anticipate the regime shift. In this research, while exploiting the case of a lacustrine ecosystem, which passed from an unvegetated, phytoplankton‐dominated state to a macrophyte‐dominated regime, we analyzed the role of warming as a slow driver when far from the regime shift. To this end, we combined the analysis of the time series of the driver of pressure and of the response variables with the qualitative analysis of the lake community food web structure. Predictions obtained about the response of plankton populations to simulated press perturbations due to warming were consistent with observed variation in their levels of abundance, confirming that warming was a slow driver and unveiling the mechanistic basis of its effects. This case study suggests a novel approach to interpret early changes in ecosystems subjected to slow drivers of pressure, extending the toolkit beyond the analysis of statistical signature and manipulative experiments. Climatic variations gradually alter the external conditions that ecosystems face, and the approach presented here could help monitor their responses to climate change.","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"7 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144259986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ecological drift drives anthropogenic impacts on multiple facets of aquatic insect diversity","authors":"Zhengfei Li, Zhicai Xie, Yihao Ge, Jorge García‐Girón, Xiaoming Jiang, Xianfu Zhao, Jani Heino, Junqian Zhang","doi":"10.1002/lno.70102","DOIUrl":"https://doi.org/10.1002/lno.70102","url":null,"abstract":"Human disturbance is a major threat to natural ecosystems globally. However, how disturbances alter the interplay of deterministic and stochastic processes underlying community structure and diversity remains to be clarified, as evidence from natural systems is particularly lacking. Here, we investigated how the taxonomic, functional, and phylogenetic α and β diversity of aquatic insects respond to a gradient of cumulative human disturbances in a large subtropical river network. We then evaluated the impacts of individual stressors measured at local, riparian, and catchment scales on these multifaceted diversity dimensions. Finally, we used a null model approach to test how human impacts modulate the relative role of ecological drift, selection, and dispersal in community organization. Human impacts differentially affected α diversity measures, with species richness and mean pairwise distance indices (MPD) decreasing, while mean nearest‐taxon distance indices (MNTD) increased from near‐pristine to highly impacted sites. Human impacts were also associated with increased β diversity, leading to biotic differentiation. Catchment land uses overrode the effects of riparian and local instream stressors in regulating insect diversity. The assembly of insect communities was primarily driven by ecological drift, with heterogeneous selection playing a secondary role. Human impacts mediated the balance between deterministic and stochastic processes by disrupting species interactions and promoting ecological drift. Our study demonstrates that the role of ecological drift in community assembly should not be overlooked, especially given that many biological communities are shrinking in size due to escalating environmental pressures during the Anthropocene.","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"135 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144252209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The role of light quality and species richness in shaping phytoplankton communities","authors":"Vanessa Marzetz, Aaron Katz, Julia Wuthe, Maren Striebel, Alexander Wacker","doi":"10.1002/lno.70086","DOIUrl":"https://doi.org/10.1002/lno.70086","url":null,"abstract":"In natural water bodies, the light spectrum changes with depth, often toward a higher proportion of blue light. While spectral niche partitioning and functional redundancy are important concepts, our understanding of how light spectrum changes affect phytoplankton communities is limited. To understand how phytoplankton respond to changes in spectral light availability, we studied the effects of light quality on species growth, community composition, and biomass production. In a controlled laboratory experiment, we assembled up to 7 phytoplankton species into 13 communities with 5 different initial species richness levels. Communities were exposed to three light quality treatments simulating the red light reduction across water depths (full spectrum, reduced red proportion, and no red). Community biomass was positively influenced by the initial number of species, and this was most pronounced if red light was reduced (shown by a significant interactive effect of light conditions and initial species richness). The growth rate responses were highly species specific, and among the species tested, only <jats:italic>Chlamydomonas</jats:italic> showed increased growth rates with higher blue light levels, while most others exhibited negative trends. Initial species richness significantly influenced these outcomes. By the end of the experiment, <jats:italic>Chlamydomonas</jats:italic> had increased in proportion within the community, demonstrating its competitive strength and ability to affect the growth of other species. Our study highlights the sensitivity of certain species to specific wavelengths of light and how competition can shape these responses, contributing to a better understanding of phytoplankton dynamics in changing aquatic environments.","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"26 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144237550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}