Limnology and Oceanography Letters最新文献

{"title":"Idiosyncratic phenology of greenhouse gas emissions in a Mediterranean reservoir","authors":"Eva Rodríguez-Velasco,&nbsp;Ignacio Peralta-Maraver,&nbsp;Andrés Martínez-García,&nbsp;Miriam García-Alguacil,&nbsp;Félix Picazo,&nbsp;Rodrigo J. Gonçalves,&nbsp;Cintia L. Ramón,&nbsp;Rafael Morales-Baquero,&nbsp;Francisco J. Rueda,&nbsp;Isabel Reche","doi":"10.1002/lol2.10409","DOIUrl":"10.1002/lol2.10409","url":null,"abstract":"<p>Extreme hydrological and thermal regimes characterize the Mediterranean zone and can influence the phenology of greenhouse gas (GHG) emissions in reservoirs. Our study examined the seasonal changes in GHG emissions of a shallow, eutrophic, hardwater reservoir in Spain. We observed distinctive seasonal patterns for each gas. CH₄ emissions substantially increased during stratification, influenced predominantly by the increase in water temperature, net ecosystem production, and the decline in reservoir mean depth. N₂O emissions mirrored CH₄'s seasonal trend, significantly correlating to water temperature, wind speed, and gross primary production. Conversely, CO₂ emissions decreased during stratification and displayed a quadratic, rather than a linear relationship with water temperature—an unexpected deviation from CH₄ and N₂O emission patterns—likely associated with photosynthetic uptake of bicarbonate and formation of intracellular calcite that might be exported to sediments. This investigation highlights the imperative of integrating these idiosyncratic patterns into GHG emissions models, enhancing their predictive power.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"9 4","pages":"364-375"},"PeriodicalIF":5.1,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.10409","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141382319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Decadal warming has intensified Microcystis-dominated cyanobacterial blooms in Lake Erie","authors":"Christopher J. Gobler,&nbsp;Grace J. Di Cecco,&nbsp;Owen M. Doherty,&nbsp;Benjamin J. Kramer","doi":"10.1002/lol2.10406","DOIUrl":"10.1002/lol2.10406","url":null,"abstract":"<p>Cyanobacterial harmful algal blooms (CHABs) are increasingly common in freshwater ecosystems and are often associated with climate change. Here, we used two independent high-resolution surface temperature records (1995–2022) and temperature-dependent growth rates of <i>Microcystis</i> to evaluate changes in these CHABs in Lake Erie. The potential mean seasonal growth rate of <i>Microcystis</i> and the duration of the <i>Microcystis</i> bloom season have both significantly increased within the western basin of Lake Erie since 1995. Trends were strongest in the far western region of Lake Erie including Maumee Bay which receives the largest point source of nutrients in the Lake and where the <i>Microcystis</i> bloom season has expanded by up to 1 month. In contrast, warming trends in bloom-free portions of central and eastern Lake Erie have been more muted. We conclude that increasing water temperature is an important factor facilitating the intensification of these, and likely other, CHABs, and is thus promoting an expanding public health threat.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"9 5","pages":"593-601"},"PeriodicalIF":5.1,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.10406","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141388121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metals in coastal groundwater systems under anthropogenic pressure: a synthesis of behavior, drivers, and emerging threats","authors":"Tristan McKenzie,&nbsp;Amy Moody,&nbsp;João Barreira,&nbsp;Xiaoyi Guo,&nbsp;Anael Cohen,&nbsp;Stephanie J. Wilson,&nbsp;Murugan Ramasamy","doi":"10.1002/lol2.10413","DOIUrl":"10.1002/lol2.10413","url":null,"abstract":"<p>Submarine groundwater discharge (SGD) dynamically links land- and ocean-derived chemical constituents, such as metals, in the coastal ocean. While many metals are sediment-bound, changing environmental conditions, particularly along the coast, may lead to increased release of metals to their dissolved and more bioavailable form. Here, we review metal behavior, speciation, and drivers of mobilization in the coastal environment under anthropogenic influence. We also model global metal contamination risk to the coastal ocean via SGD considering anthropogenic and hydrogeologic pressures, where tropical regions with high population density, SGD, and acid sulfate soils (4% of the global coast) present the highest risk. Although most SGD studies focus on other analytes, such as nutrients, this review demonstrates the importance of considering SGD as a critical pathway for metals to reach the coastal ocean under rapidly changing environmental conditions.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"9 4","pages":"388-410"},"PeriodicalIF":5.1,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.10413","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141270820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vegetation promotes flow retardation and retention in deltaic wetlands","authors":"Xiaohe Zhang,&nbsp;Cathleen E. Jones,&nbsp;Marc Simard,&nbsp;Paola Passalacqua,&nbsp;Talib Oliver-Cabrera,&nbsp;Sergio Fagherazzi","doi":"10.1002/lol2.10376","DOIUrl":"10.1002/lol2.10376","url":null,"abstract":"<p>We introduce a new approach to observe the impact of vegetation on tidal flow retardation and retention at large spatial scales. Using radar interferometry and in situ water level gauge measurements during low tide, we find that vegetation in deltaic intertidal zones of the Wax Lake Delta, Louisiana, causes significant tidal distortion with both a delay (between 80 and 140 min) and amplitude reduction (~ 20 cm). The natural vegetation front delays the ebb tide, which increases the minimum water level and hydro-period inside the deltaic islands, resulting in better conditions for wetland species colonizing low elevations. This positive feedback between vegetation and hydraulics demonstrates the self-organization functionality of vegetation in the geomorphological evolution of deltas, which contributes to deltaic stability.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"9 5","pages":"644-652"},"PeriodicalIF":5.1,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.10376","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141185209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A two-year physicochemical and acoustic observation reveals spatiotemporal effects of earthquake-induced shallow-water hydrothermal venting on the surrounding environments","authors":"Ling Chiu,&nbsp;Min-Chen Wang,&nbsp;Chih-Lin Wei,&nbsp;Tzu-Hao Lin,&nbsp;Yung-Che Tseng","doi":"10.1002/lol2.10412","DOIUrl":"10.1002/lol2.10412","url":null,"abstract":"<p>Shallow-water hydrothermal vents have gained growing attention for their intricate characteristics caused by various epipelagic factors. The shallow-water hydrothermal system offshore Kueishan Island, Taiwan, situated in an earthquake-prone area, has prompted our exploration into the relationship between hydrothermal and seismic activities. Our 2-yr observation uncovered that the hydrothermal venting entered a silent period in November 2020, followed by a resurgence of activity after September 2021, coinciding with high-frequency shallow earthquakes occurring within 5 km of the vents. The pH level, dissolved inorganic carbon, alkalinity, pCO₂, <span></span><math>\u0000 <mrow>\u0000 <msubsup>\u0000 <mi>CO</mi>\u0000 <mn>3</mn>\u0000 <mrow>\u0000 <mn>2</mn>\u0000 <mo>−</mo>\u0000 </mrow>\u0000 </msubsup>\u0000 </mrow></math>, and sulfide served as indicators of hydrothermal activity, contributing to environmental changes in habitats during period transition. However, peering physicochemical and soundscape conditions, distinctions may still arise during two separate active periods. Through multivariate analysis, this study highlights the variability of shallow-water hydrothermal vents, emphasizing the necessity for more frequent and detailed investigations to further understand these extreme and dynamic marine ecosystems.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"9 4","pages":"423-432"},"PeriodicalIF":5.1,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.10412","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141182383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sedimentary ancient DNA and HBI biomarkers as sea-ice indicators: A complementary approach in Antarctic fjord environments","authors":"Anna J. Pieńkowski,&nbsp;Witold Szczuciński,&nbsp;Agnieszka Breszka,&nbsp;Maciej Chyleński,&nbsp;Anna Juras,&nbsp;Paulina Romel,&nbsp;Piotr Rozwalak,&nbsp;Artur Trzebny,&nbsp;Mirosława Dabert,&nbsp;Simon T. Belt,&nbsp;Robert Jagodziński,&nbsp;Lukas Smik,&nbsp;Wojciech Włodarski","doi":"10.1002/lol2.10395","DOIUrl":"10.1002/lol2.10395","url":null,"abstract":"<p>Reliable high-resolution, pre-observational-period sea-ice datasets are rare but critical for contextualizing recent sea-ice declines and future scenarios. We combine sedimentary ancient DNA of the sea-ice dinoflagellate <i>Polarella glacialis</i> (Pgla-sedaDNA) with selected highly branched isoprenoid (HBI) biomarkers alongside other indicators to reconstruct sub-decadal sea-ice changes in a marine archive from the Antarctic Peninsula that extends to ~ 1900 CE. Pre-1940 CE, the continuously present sea-ice biomarker IPSO₂₅ yet absent Pgla-sedaDNA, along with low open-water biomarkers and total organic carbon (TOC), imply more prominent seasonal sea ice and lower productivity under cooler climate. Post-1940 <span>CE</span>, rising Pgla-sedaDNA and open-water HBIs under climate warming reflect young ice with a retreating sea-ice edge. Over the last two decades, lower Pgla-sedaDNA, higher open-water HBIs and TOC infer known warming, sea-ice reduction, and increased productivity. Our multiproxy-based palaeo-histories agree well with observational data, highlighting the potential of this combination of proxies for nuanced and long-term sea-ice reconstructions.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"9 6","pages":"785-795"},"PeriodicalIF":5.1,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.10395","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141159657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combined exposure to CO2 and H2S significantly reduces the performance of the Mediterranean seagrass Posidonia oceanica: Evidence from a volcanic vent","authors":"Geraldina Signa,&nbsp;Valentina Sciutteri,&nbsp;Agostino Tomasello,&nbsp;Valentina Costa,&nbsp;Silvia Casabianca,&nbsp;Giovanna Cilluffo,&nbsp;Cristina Andolina,&nbsp;Salvatrice Vizzini","doi":"10.1002/lol2.10368","DOIUrl":"10.1002/lol2.10368","url":null,"abstract":"<p>Although seagrasses are expected to thrive in future acidified oceans by overcoming low CO₂ diffusion into plant tissues, the co-occurrence of environmental stressors may affect their growth. Volcanic CO₂ vents are often associated with toxic gases and metal-rich fluids representing ideal sites to assess the effects of multiple stressors. We evaluated the response of <i>Posidonia oceanica</i> growing near shallow CO₂ vents characterized by H₂S spill-out by comparing meadow structure and phenology to an area with no gas emissions. Seagrass descriptors at meadow, shoot and leaf level indicated that <i>P. oceanica</i> experienced stressful conditions at the vent area, in clear contrast to the flourishing features of <i>P. oceanica</i> previously described at CO₂ vents with no evidence of toxic inputs. Furthermore, the reduction in both leaf δ³⁴S and growth at the vent area indicates that sulfide intrusion occurs and affects seagrass growth performance, dampening the expected beneficial effects of high CO₂ levels.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"9 4","pages":"461-468"},"PeriodicalIF":5.1,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.10368","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141091960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling differential thermal sensitivities in marine phytoplankton within the China Seas","authors":"Changyun Wang,&nbsp;Shujie Cai,&nbsp;Zhuyin Tong,&nbsp;Jixin Chen,&nbsp;Lizhen Lin,&nbsp;Wupeng Xiao,&nbsp;Xin Liu,&nbsp;Bangqin Huang","doi":"10.1002/lol2.10411","DOIUrl":"10.1002/lol2.10411","url":null,"abstract":"<p>In this study, we explored the realized thermal sensitivities of various phytoplankton groups in natural seawater, a crucial aspect for understanding the dynamics of marine ecosystems under climate change. Utilizing a decadal pigment dataset (2002–2015) from China Seas and employing generalized additive mixed models coupled with maximum entropy modeling, we discerned thermal sensitivity differentiations among nine phytoplankton groups, encompassing the full-size spectrum. Our findings revealed that cryptophytes were exceptionally thermally sensitive, with a strong correlation between temperature changes and biomass variance. Characterized by a preference for cooler waters, cryptophytes had a low mean temperature niche and a narrow niche breadth. Notably, they exhibited the lowest temperature tipping point, highlighting their heightened vulnerability to warming trends. These findings underscored the significance of cryptophytes, an often-overlooked group, in understanding ecosystem responses to climate shifts, and emphasized their potential role as key indicators in marine ecological studies under global warming.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"9 5","pages":"583-592"},"PeriodicalIF":5.1,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.10411","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141091917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stream CO2 emissions are overestimated without consideration of diel water and atmospheric CO2 variability","authors":"Theresa Reichenpfader,&nbsp;Katrin Attermeyer","doi":"10.1002/lol2.10405","DOIUrl":"10.1002/lol2.10405","url":null,"abstract":"<p>Streams are significant emitters of carbon dioxide (CO₂) to the atmosphere that are influenced by diel CO₂ dynamics. However, we know little about diel CO₂ variability within streams, the diel dynamics of CO₂ in the air above streams, and the consequences for emission calculations. We studied five pre-alpine streams by equipping three sites per stream in close proximity (~ 1 km apart) with automatic logging stations that continuously recorded water and air CO₂ partial pressures (pCO₂) for 2–4 d. All streams and sites showed increased pCO₂ at night and decreased pCO₂ during the day, however, with fourfold higher diel amplitudes for atmospheric pCO₂ compared to the water. Calculating diffusive CO₂ fluxes with fixed compared to dynamic measured atmospheric CO₂ resulted in negligible to 431% lower estimates. We might thus currently overestimate fluvial CO₂ emissions and should include diel water and air CO₂ variability to more accurately assess stream CO₂ emissions.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"9 5","pages":"543-552"},"PeriodicalIF":5.1,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.10405","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140954171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Global subterranean estuaries modify groundwater nutrient loading to the ocean","authors":"Stephanie J. Wilson,&nbsp;Amy Moody,&nbsp;Tristan McKenzie,&nbsp;M. Bayani Cardenas,&nbsp;Elco Luijendijk,&nbsp;Audrey H. Sawyer,&nbsp;Alicia Wilson,&nbsp;Holly A. Michael,&nbsp;Bochao Xu,&nbsp;Karen L. Knee,&nbsp;Hyung-Mi Cho,&nbsp;Yishai Weinstein,&nbsp;Adina Paytan,&nbsp;Nils Moosdorf,&nbsp;Chen-Tung Aurthur Chen,&nbsp;Melanie Beck,&nbsp;Cody Lopez,&nbsp;Dorina Murgulet,&nbsp;Guebuem Kim,&nbsp;Mathew A. Charette,&nbsp;Hannelore Waska,&nbsp;J. Severino P. Ibánhez,&nbsp;Gwénaëlle Chaillou,&nbsp;Till Oehler,&nbsp;Shin-ichi Onodera,&nbsp;Mitsuyo Saito,&nbsp;Valenti Rodellas,&nbsp;Natasha Dimova,&nbsp;Daniel Montiel,&nbsp;Henrietta Dulai,&nbsp;Christina Richardson,&nbsp;Jinzhou Du,&nbsp;Eric Petermann,&nbsp;Xiaogang Chen,&nbsp;Kay L. Davis,&nbsp;Sebastien Lamontagne,&nbsp;Ryo Sugimoto,&nbsp;Guizhi Wang,&nbsp;Hailong Li,&nbsp;Américo I. Torres,&nbsp;Cansu Demir,&nbsp;Emily Bristol,&nbsp;Craig T. Connolly,&nbsp;James W. McClelland,&nbsp;Brenno J. Silva,&nbsp;Douglas Tait,&nbsp;BSK Kumar,&nbsp;R. Viswanadham,&nbsp;VVSS Sarma,&nbsp;Emmanoel Silva-Filho,&nbsp;Alan Shiller,&nbsp;Alanna Lecher,&nbsp;Joseph Tamborski,&nbsp;Henry Bokuniewicz,&nbsp;Carlos Rocha,&nbsp;Anja Reckhardt,&nbsp;Michael Ernst Böttcher,&nbsp;Shan Jiang,&nbsp;Thomas Stieglitz,&nbsp;Houégnon Géraud Vinel Gbewezoun,&nbsp;Céline Charbonnier,&nbsp;Pierre Anschutz,&nbsp;Laura M. Hernández-Terrones,&nbsp;Suresh Babu,&nbsp;Beata Szymczycha,&nbsp;Mahmood Sadat-Noori,&nbsp;Felipe Niencheski,&nbsp;Kimberly Null,&nbsp;Craig Tobias,&nbsp;Bongkeun Song,&nbsp;Iris C. Anderson,&nbsp;Isaac R. Santos","doi":"10.1002/lol2.10390","DOIUrl":"10.1002/lol2.10390","url":null,"abstract":"<p>Terrestrial groundwater travels through subterranean estuaries before reaching the sea. Groundwater-derived nutrients drive coastal water quality, primary production, and eutrophication. We determined how dissolved inorganic nitrogen (DIN), dissolved inorganic phosphorus (DIP), and dissolved organic nitrogen (DON) are transformed within subterranean estuaries and estimated submarine groundwater discharge (SGD) nutrient loads compiling &gt; 10,000 groundwater samples from 216 sites worldwide. Nutrients exhibited complex, nonconservative behavior in subterranean estuaries. Fresh groundwater DIN and DIP are usually produced, and DON is consumed during transport. Median total SGD (saline and fresh) fluxes globally were 5.4, 2.6, and 0.18 Tmol yr⁻¹ for DIN, DON, and DIP, respectively. Despite large natural variability, total SGD fluxes likely exceed global riverine nutrient export. Fresh SGD is a small source of new nutrients, but saline SGD is an important source of mostly recycled nutrients. Nutrients exported via SGD via subterranean estuaries are critical to coastal biogeochemistry and a significant nutrient source to the oceans.</p>","PeriodicalId":18128,"journal":{"name":"Limnology and Oceanography Letters","volume":"9 4","pages":"411-422"},"PeriodicalIF":5.1,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/lol2.10390","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140953482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}