Limnetica最新文献

{"title":"Benthic macroinvertebrates community structure and physicalchemical characteristics at Lauca River Basin high altitude wetlands, Altiplano, Chile","authors":"Francisco Llanquín-Rosas, Violeta Cárcamo-Tejer, Irma Vila Pinto, Alberto Sáez-Arteaga, F. Correa-Araneda, C. Guerrero-Jiménez","doi":"10.23818/limn.43.09","DOIUrl":"https://doi.org/10.23818/limn.43.09","url":null,"abstract":"High Andean freshwater ecosystems are highly threatened by scarce water availability, species invasion, and global climate change, so generating knowledge about their ecological characteristics is extremely important for conservation decision-making. In this work, the seasonal variations and relationships between physico-chemical variables and the structure and composition of the macroinvertebrate community were analyzed considering “season”, “type of ecosystem” and “site” factors. Five sites of representative ecosystems at Lauca River Basin of the Chilean Altiplano were sampled, two of them lentic and three lotic. Two field-sampling periods within a year according to the pre- and post-rain seasons characteristic of the Altiplano climate were considered. Thirty-five taxa were identified, and it was observed that the taxa Orthocladiinae, Austrelmis sp., Hyallela cf kochi, Podonominae and Helicopsychidae were indicator taxa that contributed the most to differences among sites or ecosystems (≥ 10 %.). No significant differences were found in the alpha diversity indicators used, except for some abundance values and Pielou’s Evenness index (J´), which varied significantly between lotic and lentic systems. The results of the ordination analysis showed a significant differentiation considering physical and chemical variables and macroinvertebrates assemblages that responded to “sites” (ANOSIM R Global = 0.64, p = 0.001) and “type of ecosystem” factors (ANOSIM R Global = 0.31, p = 0.02). The “season” factor was not statistically significant to explain the variability of biological data (ANOSIM R Global = -0.003, p = 0.47) and was slight and marginally significant with the physical and chemical data (ANOSIM R Global = 0.1, p = 0.04). In addition, the linear redundancy analysis (RDA) showed that physico-chemical variables related to hardness, temperature, phosphorous, and nitrogen explained most of the variance in the biological data (the first two canonical axes RDA1 and RDA2 explained 45.23 % of the total variation, p = 0.004). These results support the relevance of local conditions for high altitude wetlands and how those environmental characteristics can be reflected in the macroinvertebrate assemblages that inhabit them.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47912329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exposed sediments in a temperate-climate reservoir under dam decommissioning contain large stocks of highly bioreactive organic matter","authors":"Mabano Amani, B. Obrador, David Fandos, A. Butturini, D. von Schiller","doi":"10.23818/limn.43.11","DOIUrl":"https://doi.org/10.23818/limn.43.11","url":null,"abstract":"Dam decommissioning (DD) is used to solve economic and social problems posed by old dams. However, we ignore the effect of DD on the content and reactivity of large stocks of organic matter (OM) buried in reservoir sediments. We explored temporal changes in the content and reactivity of sediment OM during the first 580 days after the drawdown phase of DD of a large reservoir in the N Iberian Peninsula. We determined the content of sediment OM as organic carbon (OC) in bulk sediment OM and water-extractable OM (WEOM). We estimated the reactivity of bulk sediment OM as its respiration rate and carbon-to-nitrogen ratio, and that of sediment WEOM as its respiration rate, percent biodegradable dissolved OC (%BDOC), and SUVA254. The content of bulk sediment OM was 84 ± 5.1 (mean ± SE) mg OC/ g dry sediment, comparable to the values in the literature on sediment OM in dry sediments from lentic, but higher than in lotic ecosystems. The content of sediment WEOM was 0.81 ± 0.05 mg DOC/g dry sediment, higher than the values in the literature on sediment WEOM from lakes, soils, and rivers. On average, 41 % of WEOM was consumed by microorganisms in two days of incubation, showing the great reactivity of this OM fraction. The content of bulk sediment OM and the respiration rate of WEOM showed a nonlinear temporal trend, while %BDOC increased linearly with sediment exposure time. The labile OM produced by the vegetation that rapidly recolonized the reservoir and photoreactions may explain the temporal increase in %BDOC. Our results suggest that exposed sediments can be a source of labile OM and high C emissions in the river reach downstream of the reservoir after DD.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68867624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Longitudinal patterns in water quality and fish assemblage structure in a low-gradient, temperate Neotropical stream disrupted by a point-source urban effluent","authors":"Ignacio Masson, A. Bertora, J. Rosso, José González Castelain, Sabrina Dubny, Natalia Othax, F. Peluso","doi":"10.23818/limn.43.08","DOIUrl":"https://doi.org/10.23818/limn.43.08","url":null,"abstract":"Low-gradient, prairie streams from the Pampa Plain, Argentina, constitute the southernmost geographic occurrence for many Neotropical fish species. Fish assemblages in Neotropical streams have shown drastic responses to the modification of habitat and water quality. Under this scenario it could be hypothesized that the water quality will be influenced by the anthropic activities and the natural conditions and that the ichthyofauna will be responsive. Therefore, understanding the functioning of these ecosystems is crucial for their conservation in a world with ever-growing anthropic pressures. In order to explore patterns in fish assemblage and water quality under urbanization pressure, the Del Azul stream (Buenos Aires, Argentina) was sampled. The objectives of the study were: (1) to explore trends in water quality and fish assemblage structure along the stream, (2) to study the relationship between fish assemblage structure and water quality, and (3) to pinpoint individual species with potential for biomonitoring. Seven sites were selected along the stream, and they were sampled twice during each of five consecutive summer periods. Through the use of multivariate analysis, we revealed trends in water quality and fish assemblage structure where water quality characteristics were more distinctive of a basin sector than the fish species abundances. Irrespective of that, the Indicator Species Analysis evidenced some key species indicative of given groups of sites sharing similar water quality characteristics. Namely, Cnesterodon decemmaculatus was associated to polluted reaches downstream from the point-source urban effluent, and Cheirodon interruptus, Pimelodella laticeps and Oligosarcus jenynsii to lower salinities and less polluted reaches upstream from the point-source urban effluent. All these species could be useful for biomonitoring temperate Neotropical streams.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44933240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding the fluxes of greenhouse gases in reservoirs under the inspiration of Margalef","authors":"Elizabeth León-Palmero","doi":"10.23818/limn.42.22","DOIUrl":"https://doi.org/10.23818/limn.42.22","url":null,"abstract":"Reservoirs are significant sources of greenhouse gases (GHG), such as carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O), to the atmosphere. These systems receive and metabolize a larger amount of organic and inorganic carbon and nitrogen from their watersheds than lakes, resulting in the production of CO2, CH4 and N2O. Despite their global relevance, there are still important uncertainties regarding the magnitude, variability and drivers of their emissions that undermine global estimates. Therefore, a comprehensive understanding of the origin of these emissions is required. Here, I investigate the fluxes of CO2, CH4 and N2O and their concentrations in the water column of twelve Mediterranean reservoirs during the stratification and mixing periods to discern the main pathways involved in their production and the spatial and seasonal variability among these gases and their emissions and radiative forcing. Finally, I provide a theorical framework to understand GHG emissions as a response of reservoirs to eutrophication and external forcing. I integrate Margalef’s ideas about how eutrophication perturbs the biogeochemistry of inland waters with the main findings of my previous work to analyze how the C, N and P inputs from reservoir watersheds modify the biogeochemical cycling of C, N, P and O, and determine the production and emission of CO2, CH4, and N2O. This perturbation effect is especially notable for CH4, and N2O emissions, which increase significantly in eutrophic waters, even exceeding the climate forcing of CO2. Therefore, emission of GHG should be seen as part of the reservoir response to the external forcing that displaces a fraction of the materials to the atmospheric boundary.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45643570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impacts of diffuse urban stressors on stream benthic communities and ecosystem functioning: A review","authors":"Miriam Colls, A. Viza, Aitziber Zufiarre, Alba Camacho-Santamans, A. Laini, A. González-Ferreras, A. Filipe, Ana Victoria Pérez-Calpe, A. Freixa, A. Lupon, Anna C. Santamans, A. Pradhan, Carmen Espinosa, Carmen Vera-Trujillo, C. Gutiérrez‐Cánovas, C. Mendoza‐Lera, D. Bruno, Daniel Mercado-Bettín, Daniel Morant, Daniela Batista, David Cunillera‐Montcusí, D. Graça, Eduard Vico-Oton, Edurne Estévez, Elizabeth León-Palmero, E. Suarez, E. Fenoy, Eva Lima, Félix Picazo, F. J. Oficialdegui, F. Keck, G. Gionchetta, Ibor Sabás, Ignacio Pérez-Silos, Ilisa C Antunes, I. Alvarez-Manzaneda, I. de Guzmán, Isabel Fernandes, J. Pereira da Silva, Jing Wei, J. Montes-Pérez, J. Trabulo, J. Ledesma, José María Fernández-Calero, José Pedro Ramião, J. Rubio‐Ríos, Juan David González‐Trujillo, Laura Barral-Fraga, Laura Jiménez, Lidia Vendrell‐Puigmitja, Lluís Bertrans, L. Gómez‐Gener, L. Rovelli, Lukas Thuile-Bistarelli, Marc Sánchez-Morales, Marco J. Cabrerizo, María Aranguren-Gassis, M. Argudo, María J. Navarro‐Ramos, Miren A","doi":"10.23818/limn.43.07","DOIUrl":"https://doi.org/10.23818/limn.43.07","url":null,"abstract":"Catchment urbanisation results in urban streams being exposed to a multitude of stressors. Notably, stressors originating from diffuse sources have received less attention than stressors originating from point sources. Here, advances related to diffuse urban stressors and their consequences for stream benthic communities are summarised by reviewing 92 articles. Based on the search criteria, the number of articles dealing with diffuse urban stressors in streams has been increasing, and most of them focused on North America, Europe, and China. Land use was the most common measure used to characterize diffuse stressor sources in urban streams (70.7 % of the articles characterised land use), and chemical stressors (inorganic nutrients, xenobiotics, metals, and water properties, including pH and conductivity) were more frequently reported than physical or biological stressors. A total of 53.3 % of the articles addressed the impact of urban stressors on macroinvertebrates, while 35.9 % focused on bacteria, 9.8 % on fungi, and 8.7 % on algae. Regarding ecosystem functions, almost half of the articles (43.5 %) addressed changes in community dynamics, 40.3 % addressed organic matter decomposition, and 33.9 % addressed nutrient cycling. When comparing urban and non-urban streams, the reviewed studies suggest that urbanisation negatively impacts the diversity of benthic organisms, leading to shifts in community composition. These changes imply functional degradation of streams. The results of the present review summarise the knowledge gained to date and identify its main gaps to help improve our understanding of urban streams.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45652232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Freshwater microcrustaceans of Hispaniola: new records and potential as biological control agents","authors":"C. Olmo, J. Rueda, M. A. Rodríguez-Sosa, M. González, P. M. Alarcón-Elbal","doi":"10.23818/limn.43.06","DOIUrl":"https://doi.org/10.23818/limn.43.06","url":null,"abstract":"Some species of freshwater microcrustaceans have been widely used for biological control of mosquito larval populations. These zooplankton communities play an important role against some species of mosquitoes by exerting competitive pressure or predation. However, zooplankters are scarcely studied in many Caribbean islands such as Hispaniola. The goal of this study was to improve the knowledge of these microcrustaceans in order to better understand the biodiversity and ecology of this Antillean Island. Samples of zooplankton were taken from 28 ponds in the northern Dominican Republic during 2020. The total richness of microcrustaceans was 25 species, comprising 17 copepods and 8 cladocerans. Most of the collected species were previously described for the island, and some of them are registered as potential biological controllers of mosquito larvae populations. Five genera (including 6 species) of microcrustaceans that inhabit the ponds are recorded for the first time for Hispaniola: Simocephalus Schoedler, 1858; Pleuroxus Baird, 1853; Ilyocryptus G.O. Sars, 1861; Apocyclops Lindberg, 1942; and Diacyclops Kiefer, 1927. Here, we discuss these new findings in relation to the competitive and/or predatory potential of these species against mosquito larvae. The present study improves the knowledge of biodiversity in ponds in the Dominican Republic.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41810974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Girogonitos de carofitas en el Parque Nacional de Doñana: Su registro en sedimentos pleistocenos y holocenos","authors":"Adolfo M. Muñoz, F. Ruiz, Liliana Guerra, Cristina Veiga-Pires, Antonio Toscano, M. L. González-Regalado, M. Abad, Joaquín Rodríguez Vidal, L. M. Cáceres, Tatiana Izquierdo, M. I. Carretero, M. Pozo, Guadalupe Monge, J. Tosquella, Paula Gómez, Verónica Romero, Marta Arroyo","doi":"10.23818/limn.43.03","DOIUrl":"https://doi.org/10.23818/limn.43.03","url":null,"abstract":"Las caráceas constituyen un grupo importante de macrófitos acuáticos en el Parque Nacional de Doñana. En este artículo, se estudia la distribución de sus girogonitos en diversos medios de este espacio protegido (lagunas temporales, surgencias, caños, márgenes del río Guadalquivir, etc), relacionándola tanto con las variables físico-químicas como con la textura y mineralogía del sedimento. Se efectúa una revisión del registro geológico de este grupo en diversos testigos compuestos por sedimentos pleistocenos y holocenos.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43654378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nuevas aportaciones sobre las esponjas de agua dulce (Porifera: Spongillidae) en aguas temporales de Costa Rica","authors":"Juan Rueda, Ángel Gálvez, Andreu Castillo-Escrivà, Fabián Bonilla, Berenice de Manuel, L. Morales, M. Bisquert, M. Sasa, Juan Monrós, Xavier Armengol, Francesc Mesquita-Joanes","doi":"10.23818/limn.43.04","DOIUrl":"https://doi.org/10.23818/limn.43.04","url":null,"abstract":"Entre 2017 y 2018 se realizó un estudio limnológico de 30 lagunas temporales de Costa Rica. Entre otros organismos, se estudiaron las esponjas de agua dulce (Porifera: Spongillidae), en cuya distribución se centra el presente estudio. De las muestras se aislaron 15 552 gémulas de esponjas repartidas en 21 localidades de la provincia de Guanacaste. Este material se obtuvo a lo largo de seis campañas de muestreo efectuadas entre mayo de 2017 y diciembre de 2018. Las especies de esponjas identificadas fueron Radiospongilla crateriformis (Potts, 1882), Corvoheteromeyenia heterosclera (Ezcurra de Drago, 1974), Tubella variabilis Bonetto & Ezcurra de Drago, 1973 y Ephydatia fluviatilis (Linnaeus, 1759) con nuevas localidades. Se recolectaron las cuatro especies juntas en una laguna denominada “El Sitio” y se citan dos nuevas localidades de T. variabilis en “Sainalosa” y “El Sitio” junto con Ephydatia fluviatilis y Corvoheteromeyenia heterosclera en la primera, ambas lagunas localizadas en la provincia de Guanacaste. Además, destaca la recolección de gémulas de T. variabilis aglutinadas en el tubo de alojamiento del oligoqueto Aulophorus vagus Leidy, 1880 (Annelida: Oligochaeta: Naididae). Todas las gémulas se recolectaron únicamente en la vertiente Pacífica de Costa Rica, mientras que no se encontró ninguna en las lagunas muestreadas en la vertiente Atlántica, correspondiéndose con una mayor disponibilidad de fitoplancton en la primera, y mayor transparencia y menor concentración de sales del agua en la segunda.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":"1 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68867592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Compositional breakpoints of freshwater plant communities across continents","authors":"J. García–Girón, J. Heino, Lars Baastrup‐Spohr, J. Clayton, M. D. de Winton, T. Feldmann, C. Fernández‐Aláez, F. Ecke, P. Grillas, M. Hoyer, Agnieszka Kolada, S. Kosten, B. Lukács, M. Mjelde, R. Mormul, L. Rhazi, M. Rhazi, Laura Sass, Jun Xu, J. Alahuhta","doi":"10.23818/limn.42.21","DOIUrl":"https://doi.org/10.23818/limn.42.21","url":null,"abstract":"Unravelling patterns and mechanisms of biogeographical transitions is crucial if we are to understand compositional gradients at large spatial extents, but no studies have thus far examined breakpoints in community composition of freshwater plants across continents. Using a dataset of almost 500 observations of lake plant community composition from six continents, we examined, for the first time, if such breakpoints in geographical space exist for freshwater plants and how well a suite of ecological factors (including climatic and local environmental variables) can explain transitions in community composition from the subtropics to the poles. Our combination of multivariate regression tree (MRT) analysis and k-means partitioning suggests that the most abrupt breakpoint exists between temperate to boreal regions on the one hand and freshwater plant communities harbouring mainly subtropical or Mediterranean assemblages on the other. The spatially structured variation in current climatic conditions is the most likely candidate for controlling these latitudinal patterns, although one cannot rule out joint effects of eco-evolutionary constraints in the harsher high-latitude environments and post-glacial migration lags after Pleistocene Ice Ages. Overall, our study supports the foundations of global regionalisation for freshwater plants and anticipates further biogeographical research on freshwater plant communities once datasets have been harmonised for conducting large-scale spatial analyses.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47358139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Westwards expansion of the European catfish Silurus glanis in the Douro River (Portugal)","authors":"Christos Gkenas, Joana Martelo, Diogo Ribeiro, João Gago, Gil Santos, Diogo Dias, Filipe Ribeiro","doi":"10.23818/limn.43.01","DOIUrl":"https://doi.org/10.23818/limn.43.01","url":null,"abstract":"The current study reports the first occurrence and the spread of the European catfish Silurus glanis (Family: Siluridae) in the Portuguese section of the Douro River, suggesting a potential expansion of its distribution in Portugal either via westward dispersal across international rivers and/or human-assisted introductions into new reservoirs and drainages. The European catfish has unique features (e.g., opportunistic predator, hunting, and aggregation behaviour) that make it highly suitable for establishing self-sustaining populations in new areas and likely contribute to its invasion success. The species may severely affect native prey communities and modify food web structure and ecosystem functioning. Efficient and sustainable management actions are needed to prevent further introductions in the future.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134939897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}