Limnology最新文献_第3页

Impacts of land use and climate change on runoff in the Shaying River Basin based on SWAT model 基于 SWAT 模型的土地利用和气候变化对沙英河流域径流的影响

IF 1.6 4区环境科学与生态学

Limnology Pub Date : 2024-01-22 DOI: 10.1007/s10201-023-00737-2

Jie Tao, Yang Cao, Rong Gan, Qiting Zuo, Qingli Zhao, Yinxing He

{"title":"Impacts of land use and climate change on runoff in the Shaying River Basin based on SWAT model","authors":"Jie Tao, Yang Cao, Rong Gan, Qiting Zuo, Qingli Zhao, Yinxing He","doi":"10.1007/s10201-023-00737-2","DOIUrl":"https://doi.org/10.1007/s10201-023-00737-2","url":null,"abstract":"In the past decades, land use pattern and climate conditions of Shaying River Basin have changed significantly, which will inevitably have a significant impact on the river hydrological situation. Therefore, in order to study the response of the hydrological cycle process of the Shaying River Basin to land use and climate changes, this paper constructed the Soil and Water Assessment Tool (SWAT) hydrological model of the Shaying River Basin based on historical meteorological and hydrological data, and conducted parameter calibration and model verification to quantitatively explore the response of the runoff of the Shaying River Basin to different land use and climate change scenarios. The results showed that: (1) In calibration and verification periods, the determination coefficients (R2) were 0.80 and 0.83 respectively, the Nash–Sutcliffe efficiency coefficients (NSE) were 0.77 and 0.73 respectively, and the percentage deviation (PBIAS) was within ± 25%. (2) Setting different combinations of land use and climate changes into four scenarios S1, S2, S3, and S4, the simulated runoff depths were 257 mm, 298 mm, 259 mm, and 301 mm, respectively. The impacts of land use and climate changes on the annual runoff of Shaying River were 0.9% and 16.1% respectively. (3) In the scenario with 4 °C reduction and 20% precipitation increase and scenario 4 °C increase and 20% precipitation reduction, the maximum and minimum annual runoff were increased by 81.9% and decreased by 70.9% compared with the baseline period, respectively. (4) Under the seven scenarios, the precipitation, temperature and runoff in the middle and late 21st century showed an increasing trend, and precipitation will be the main controlling factor affecting runoff. The annual runoff depth showed an increasing trend, and the change of runoff depth in the lower reaches of the basin will be the most obvious.","PeriodicalId":18079,"journal":{"name":"Limnology","volume":"1 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139516562","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}

引用次数: 0

Agricultural land-use effects on the colonization dynamics of the benthic diatom assemblage of lowland streams 农业用地对低地溪流底栖硅藻群定植动态的影响

IF 1.6 4区环境科学与生态学

Limnology Pub Date : 2024-01-20 DOI: 10.1007/s10201-023-00738-1

María Mercedes Nicolosi Gelis, Joaquín Cochero, Micaela Ailén Mujica, Jorge Luis Donadelli, Malena Julia Astoviza, Nora Gómez

{"title":"Agricultural land-use effects on the colonization dynamics of the benthic diatom assemblage of lowland streams","authors":"María Mercedes Nicolosi Gelis, Joaquín Cochero, Micaela Ailén Mujica, Jorge Luis Donadelli, Malena Julia Astoviza, Nora Gómez","doi":"10.1007/s10201-023-00738-1","DOIUrl":"https://doi.org/10.1007/s10201-023-00738-1","url":null,"abstract":"Various agrochemicals have been shown to affect diatom growth, physiology, and the structure and diversity of the assemblage. This research aims to study the structural and functional parameters of the benthic diatom assemblage, including indices, ecological traits, nuclear, and frustule abnormalities during the colonization period when exposed to different levels of agricultural impact in lowland streams. To achieve this objective, an experiment was conducted in the Pescado watershed (La Plata, Buenos Aires, Argentina), where the colonization process of artificial glass substrates by diatoms was followed for 75 days in two streams with different intensities of agricultural land use. The results show that the Pampean Diatom Index and diversity reflect water quality in agricultural sites, and there is an increase in diversity and richness during the colonization process, which stabilizes after 20 days. Considering the ecological guilds, the motile guild (fast-moving species) dominated the assemblages, while the low-profile guild (species of short stature, including prostate, adnate, and erect diatoms resistant to physical disturbance and low tolerance to nutrient enrichment) was more abundant in the most impacted stream. However, the variations in the size classes did not produce a consistent trend representing environmental quality. The nuclear alterations were sensitive enough to show the differences in water quality, while the deformed frustules were not significantly different between the studied sites. These results show that measuring the impact of human activities on freshwater bodies under multiple-stressor scenarios has to consider multiple endpoints of the assemblage rather than a single structural or functional metric.","PeriodicalId":18079,"journal":{"name":"Limnology","volume":"40 3 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139507320","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}

引用次数: 0

A study on the coloration mechanism of Ao-ike Pond, Aomori Prefecture, Japan: refinement of the image analysis methods 日本青森县青池的着色机制研究：图像分析方法的改进

IF 1.6 4区环境科学与生态学

Limnology Pub Date : 2023-12-08 DOI: 10.1007/s10201-023-00734-5

Ryuji Hanaishi, Kazuhisa A. Chikita

{"title":"A study on the coloration mechanism of Ao-ike Pond, Aomori Prefecture, Japan: refinement of the image analysis methods","authors":"Ryuji Hanaishi, Kazuhisa A. Chikita","doi":"10.1007/s10201-023-00734-5","DOIUrl":"https://doi.org/10.1007/s10201-023-00734-5","url":null,"abstract":"In order to verify the blue coloration model for Ao-ike Pond, Aomori Prefecture, Japan, the authors refined the formulas previously reported for the light intensities in the coloration model. Then, the authors utilized a homography transformation technique to obtain the coordinates on the pond water surface from the digital camera image. Moreover, they experimentally determined the sensitivity factor and white balance factor of a digital camera used. Assuming potential coloration mechanisms including irregular reflection at the pond bottom, molecular scattering by water and Mie scattering by suspended solids, two types of images were analyzed so as to determine model parameters; images taken in early spring when the shading by tree leaves does not exist above the pond surface, and images photographed in early summer containing incident light trajectories brought by the sunbeam’s passage through the leaves above the pond surface. Analytical results obtained by both of the images revealed that the main coloration mechanism is molecular scattering by water but with no contribution of Mie scattering. Thus, the blue color of Ao-ike Pond was judged to be attributed to the nature of water itself.","PeriodicalId":18079,"journal":{"name":"Limnology","volume":"36 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138552813","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}

引用次数: 0

Stream habitats and human disturbances explain the diversity of Nepomorpha (Heteroptera) assemblages in Neotropical Savanna headwater streams 河流生境和人为干扰解释了新热带热带稀树草原源流中异翅目昆虫群落的多样性

IF 1.6 4区环境科学与生态学

Limnology Pub Date : 2023-12-05 DOI: 10.1007/s10201-023-00735-4

Nubia França da Silva Giehl, Marden Seabra Linares, Raphael Ligeiro, Nelson Silva Pinto, Marcos Callisto

{"title":"Stream habitats and human disturbances explain the diversity of Nepomorpha (Heteroptera) assemblages in Neotropical Savanna headwater streams","authors":"Nubia França da Silva Giehl, Marden Seabra Linares, Raphael Ligeiro, Nelson Silva Pinto, Marcos Callisto","doi":"10.1007/s10201-023-00735-4","DOIUrl":"https://doi.org/10.1007/s10201-023-00735-4","url":null,"abstract":"The organisms of the infraorder Nepomorpha (Heteroptera) present complex habitat requirements in headwater streams, usually being related to local substrate conditions. Therefore, in this study, we evaluated how the diversity of Nepomorpha responded to a wide gradient of habitat and ecological conditions. We tested two hypotheses: (1) local substrate composition is the most important factor determining the diversity of Nepomorpha compared to other physical habitat metrics, (2) Nepomorpha assemblage diversity respond more readily to anthropogenic disturbances at local scale. Our results did not corroborate the first hypothesis, and showed that the assemblage diversity was mostly related to water quality and geomorphology, indicating that substrate requirements are not the only important driver. Our second hypothesis was partially corroborated, as all diversity metrics presented significant correlation with human disturbances at both local and catchment spatial scales. These results show that Nepomorpha assemblages have high potential use as ecological indicators, which should be better explored in future biomonitoring studies of anthropogenic changes.","PeriodicalId":18079,"journal":{"name":"Limnology","volume":"14 5","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138512918","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}

引用次数: 0

Ecological advantage of polarized light pollution: positive effect of a dark lake patch at a canal inflow on habitat of non-biting midges 偏振光污染的生态优势:运河入海口暗湖斑块对非蠓生境的积极影响

4区环境科学与生态学

Limnology Pub Date : 2023-11-11 DOI: 10.1007/s10201-023-00733-6

Ádám Egri, Ádám Pereszlényi, József Szekeres, Dénes Száz, Gábor Horváth, György Kriska

{"title":"Ecological advantage of polarized light pollution: positive effect of a dark lake patch at a canal inflow on habitat of non-biting midges","authors":"Ádám Egri, Ádám Pereszlényi, József Szekeres, Dénes Száz, Gábor Horváth, György Kriska","doi":"10.1007/s10201-023-00733-6","DOIUrl":"https://doi.org/10.1007/s10201-023-00733-6","url":null,"abstract":"Abstract Dark artificial surfaces reflecting highly and horizontally polarized light usually have negative effects on polarotactic aquatic insects detecting their habitats by the horizontal polarization of water-reflected light. This ecologically disadvantageous phenomenon is called polarized light pollution. We have observed that the water between the concrete walls of a harbour of the Hungarian Lake Balaton is continuously dark from autumn to spring due to the inflow of a canal rich in dissolved humic substances. Using ground-born imaging polarimetry, we demonstrated that this dark water patch reflects light with higher degrees of polarization than the brighter lake water. Our hypothesis was that the stronger horizontally polarized light reflected from the dark water patch is more attractive to swarming, water-seeking and egg-laying non-biting midges (Chironomidae) than the surrounding brighter lake water. With larval samplings, we showed that both the density and the average size of chironomid larvae were significantly larger in the harbour than in the surrounding lake. This finding may represent an ecological advantage of polarized light pollution: polarotactic chironomids are intensely attracted to a strongly and horizontally polarizing, seasonally dark water patch at the canal inflow, where the abundance of larvae increases. It should be taken into consideration that increased larval abundance might result in increased swarming intensity which could affect humans by causing considerable nuisance.","PeriodicalId":18079,"journal":{"name":"Limnology","volume":"16 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135043045","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}

引用次数: 0

Closed-circuit hypolimnetic withdrawal and treatment: impact of effluent discharge on epilimnetic P and N concentrations 闭路低血磷回收及处理:污水排放对血磷、氮浓度的影响

4区环境科学与生态学

Limnology Pub Date : 2023-10-23 DOI: 10.1007/s10201-023-00732-7

Soila Silvonen, Leena Nurminen, Jukka Horppila, Juha Niemistö, Tom Jilbert

{"title":"Closed-circuit hypolimnetic withdrawal and treatment: impact of effluent discharge on epilimnetic P and N concentrations","authors":"Soila Silvonen, Leena Nurminen, Jukka Horppila, Juha Niemistö, Tom Jilbert","doi":"10.1007/s10201-023-00732-7","DOIUrl":"https://doi.org/10.1007/s10201-023-00732-7","url":null,"abstract":"Abstract Closed-circuit hypolimnetic withdrawal and treatment systems (HWTS) represent a novel lake restoration technique in which nutrient-rich near-bottom water is pumped through a treatment system and returned to the same lake. However, the design of such systems is not yet standardized and routing of effluent waters must be planned carefully to minimize the risk of adverse water quality impacts. Here we assessed the risk of HWTS effluent to elevate epilimnetic nutrient concentrations under a range of withdrawal and effluent discharge scenarios (4.5–45 L/s, sand filtration only and sand filtration combined with wetland) at Lake Kymijärvi, Finland. The filter of the HWTS removed most of the phosphorus (67%), but only a small fraction of nitrogen (14%). For both nutrients, filter effluent concentrations were elevated with respect to the lake epilimnion. However, the results of our calculations suggest only minor increases (0–12%) in epilimnetic phosphorus concentrations in all withdrawal and discharge scenarios. For nitrogen, somewhat higher increases (1–17%) are expected unless the filter effluent is first discharged into a wetland as part of the HWTS circuit. We conclude that the impacts of the filter effluent on the epilimnion do not mask the benefits gained in the treated lake by the closed-circuit HWTS, but use of a buffering system such as a wetland decreases the risks further.","PeriodicalId":18079,"journal":{"name":"Limnology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135368668","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}

引用次数: 0

Metabolic balance in the euphotic layer of Lake Sagami, Japan 日本相模湖光层的代谢平衡

4区环境科学与生态学

Limnology Pub Date : 2023-10-09 DOI: 10.1007/s10201-023-00731-8

Shinji Hashimoto

引用次数: 0

Sedimentary phosphorus burial in three contrasting boreal lakes in Finland 沉积磷埋藏在芬兰三个对比鲜明的北方湖泊

4区环境科学与生态学

Limnology Pub Date : 2023-09-30 DOI: 10.1007/s10201-023-00730-9

Johanna Laakso, Tom Jilbert, Timo Saarinen

{"title":"Sedimentary phosphorus burial in three contrasting boreal lakes in Finland","authors":"Johanna Laakso, Tom Jilbert, Timo Saarinen","doi":"10.1007/s10201-023-00730-9","DOIUrl":"https://doi.org/10.1007/s10201-023-00730-9","url":null,"abstract":"Abstract Permanent phosphorus (P) burial in sediment regulates lake trophic state over long timescales, but the controls on P burial are only partially understood. A diversity of biogeochemical settings may be found in lake sediments, which may have a strong impact on the processes controlling P burial from one location to another. Here, we investigate early diagenesis of P in three contrasting lakes in Southwest Finland. Eutrophic Lake Köyliönjärvi and mesotrophic Lake Pyhäjärvi have a history of nutrient loadings from agriculture, while Lake Vähäjärvi is an oligotrophic small forest lake, leading to potentially contrasting sediment biogeochemical dynamics. We combined porewater data and solid-phase sediment geochemical data to identify P phases in each system and investigate the dominant processes controlling P burial. Porewater profiles showed opposite gradients between the oligotrophic and the mesotrophic/eutrophic systems, implying net diffusive fluxes into and out of the sediments, respectively. Furthermore, sediment P data showed contrasting P speciation. Reactive P is buried in all systems, but the role of reducible iron (Fe) oxides in P retention is greater in mesotrophic/eutrophic lakes. In the oligotrophic system, aluminium (Al) oxides controlled P sorption into the sediment after diffusion from lake water. Evidence for vivianite formation was found only in the mesotrophic Lake Pyhäjärvi sediment, where 42–47% of total P was released in a Fe(II)-P specific extraction from the deeper part of the sediment column and vivianite crystals could be isolated from sediment samples.","PeriodicalId":18079,"journal":{"name":"Limnology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136341255","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}

引用次数: 0

Prediction of average score per taxon in Japan using mega data from the national census on river environments 利用来自全国河流环境普查的大型数据预测日本每个分类单元的平均得分

4区环境科学与生态学

Limnology Pub Date : 2023-09-09 DOI: 10.1007/s10201-023-00729-2

Takaaki Torii, Eishi Abe, Hideaki Tare, Takayoshi Tsuzuki, Taijun Myosho, Tohru Kobayashi

引用次数: 0

Changes in the abundance and community composition of bloom-forming cyanobacteria in Lake Oubeira (El-Kala National Park, Algeria) 阿尔及利亚乌贝拉湖(El-Kala国家公园)蓝藻丰度和群落组成的变化

IF 1.6 4区环境科学与生态学

Limnology Pub Date : 2023-08-31 DOI: 10.1007/s10201-023-00728-3

S. Belhaoues, Salah Arif, M. Bensouilah

引用次数: 0