Ecohydrology & Hydrobiology最新文献_第8页

Sustainable development in the human environment: Current and future challenges 人类环境的可持续发展：当前和未来的挑战

IF 2.7 4区环境科学与生态学

Ecohydrology & Hydrobiology Pub Date : 2024-07-01 DOI: 10.1016/j.ecohyd.2024.05.001

引用次数: 0

Assessment of water quality in a lake with limited tourist pressure due to the COVID-19 lockdown 由于COVID-19封锁，游客压力有限的湖泊水质评估

IF 2.7 4区环境科学与生态学

Ecohydrology & Hydrobiology Pub Date : 2024-07-01 DOI: 10.1016/j.ecohyd.2023.11.009

{"title":"Assessment of water quality in a lake with limited tourist pressure due to the COVID-19 lockdown","authors":"","doi":"10.1016/j.ecohyd.2023.11.009","DOIUrl":"10.1016/j.ecohyd.2023.11.009","url":null,"abstract":"<div>This study provides a unique opportunity to realistically assess the impact of tourism pressure on the water quality of lakes. A quantitative analysis of the physicochemical and microbiological parameters of water during and after the COVID-19 lockdown period was made. The study covered Sztynorckie Lake located in the Great Masurian Lakes System (GMLS) (northeastern Poland), which is a holiday destination for hundreds of thousands of holidaymakers, and serves as a pillar of the local economy. Significant improvement in the microbiological water quality was observed only during the drastic reduction of human activity due to the pandemic-enforced lockdown. This was confirmed by the results of PCA (X-axis explains 88 % of the variability of the analyzed samples; statistical significance of p<0.05). The rapid increase in the number of coliforms and Escherichia coli (613.1 MPN/100 mL) in the first weekend after the lockdown (June 2020) indicates a point discharge of sewage (including fecal pollution). Illegal discharge of sewage and wastewater is a highly reprehensible offense, and radical legal steps should be taken to prevent it and to protect the water quality. No significant relationship was found between the lockdown and the lake water's physicochemical conditions. In the spring, increased primary production was evidenced by the high concentration of chlorophyll a (52.5 to 70.5 μg/L), suspended particulate matter (20.4 to 21.0 mg/L) and total organic carbon (20.7 to 22.7 mg/L). This is a warning that a nutrient-rich lacustrine ecosystem cannot be restored quickly.</div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"24 3","pages":"Pages 698-704"},"PeriodicalIF":2.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138506822","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

Pre-isolation procedures matter–Comparison of different filtration methods prior to DNA isolation in river microbiome analysis 分离前的程序很重要--河流微生物组分析中 DNA 分离前不同过滤方法的比较

IF 2.7 4区环境科学与生态学

Ecohydrology & Hydrobiology Pub Date : 2024-07-01 DOI: 10.1016/j.ecohyd.2023.12.004

引用次数: 0

Changes in runoff-sediment reduction benefit of slope land as influenced by use of grass strips 使用草带对坡地径流-沉积物减少效益的影响变化

IF 2.7 4区环境科学与生态学

Ecohydrology & Hydrobiology Pub Date : 2024-07-01 DOI: 10.1016/j.ecohyd.2024.02.002

{"title":"Changes in runoff-sediment reduction benefit of slope land as influenced by use of grass strips","authors":"","doi":"10.1016/j.ecohyd.2024.02.002","DOIUrl":"10.1016/j.ecohyd.2024.02.002","url":null,"abstract":"<div>The dynamic of different grass strips width effects on runoff-sediment reduction benefit are not clearly understood. Thus, we aim to determine the optimum grass strips width on runoff-sediment reduction benefits on inceptisols slopes. In this work, using a soil flume as a carrier, we analyzed the influences of flow rate and grass strips width on runoff and sediment yield, as well as determined the optimum grass strips width on runoff and sediment reduction benefit through simulated scouring experiments under different flow rates (4, 6 and 8 L/min) and grass strips widths (0.50, 0.75 and 1.00 m). The results showed that 1) the runoff coefficient increases binomial with increasing scouring time, and the runoff and sediment yield of grass strips were much lower than those of bare soil under a given flow rate. 2) Compared to the bare slope, the mean runoff and sediment reduction benefits of the average grass strips width were 27.20% and 43.66%, respectively. 3) The 1.00 m grass strips width had a great runoff-sediment benefit for controlling the soil erosion, and the runoff-sediment reduction benefit was more sensitive to changes in grass strips width than to flow rate. Therefore, we can conclude that the 1.00 m grass strips width was the optimal grass strips width for reducing the runoff and sediment yield. These results have theoretical and practical significance for preventing water and soil loss on purple soil sloping farmland.</div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"24 3","pages":"Pages 624-632"},"PeriodicalIF":2.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140044754","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

The effect of differences in soil water content on microbial and enzymatic properties across the soil profiles 土壤含水量差异对整个土壤剖面微生物和酶特性的影响

IF 2.7 4区环境科学与生态学

Ecohydrology & Hydrobiology Pub Date : 2024-07-01 DOI: 10.1016/j.ecohyd.2023.06.010

{"title":"The effect of differences in soil water content on microbial and enzymatic properties across the soil profiles","authors":"","doi":"10.1016/j.ecohyd.2023.06.010","DOIUrl":"10.1016/j.ecohyd.2023.06.010","url":null,"abstract":"<div>The differences in soil water content across the soil profiles produce changes in soil microbial and enzymatic properties, which play a major role in the transformation of soil organic matter. Permanent water saturation contributes to the formation of gleyic/stagnic horizons which have reducing conditions, this leads to a depletion in soil oxygen and changes in soil properties. To assess the effect of water content, we compared soil properties in the gleyic/stagnic horizons to the oxidative layers, which occurred at the same/similar depth in other profiles. The enzymatic activity and the number of microbial groups were assessed in eight soil profiles located in central Poland.The studied properties responded differently to the water content. As expected, nitrate-reductase activity and the nitrate content were significantly higher in gleyic/stagnic than in oxidative conditions, while the opposite trend was found for phenol oxidase, urease, N-acetyl-glucosaminidase activity and the fungi number. No clear response in the total bacteria and facultative anaerobic bacteria (Bfa) count toward oxidation-reduction conditions was found. The dehydrogenases did not have a higher activity in the gleyic/stagnic as compared to the oxidative horizons and did not correlate significantly with the Bfa count. Differences in enzyme activities may be caused by the fact that the variation in frequency and duration of the reducing conditions in the soils may be insufficient to affect the short-term dynamics of these enzymes. The higher activity of some hydrolases in the reducing horizons may also be associated with the greater carbon and nitrogen content in these horizons.</div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"24 3","pages":"Pages 547-556"},"PeriodicalIF":2.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129055469","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

The influence of locks on zooplankton in canals (the Bydgoszcz Canal and the Noteć Canal, Poland) 水闸对运河中浮游动物的影响（波兰比得哥什运河和 Noteć 运河）

IF 2.7 4区环境科学与生态学

Ecohydrology & Hydrobiology Pub Date : 2024-07-01 DOI: 10.1016/j.ecohyd.2023.11.011

{"title":"The influence of locks on zooplankton in canals (the Bydgoszcz Canal and the Noteć Canal, Poland)","authors":"","doi":"10.1016/j.ecohyd.2023.11.011","DOIUrl":"10.1016/j.ecohyd.2023.11.011","url":null,"abstract":"<div>Artificial waterways are characterized by dams and locks that slow water flow. Such conditions can influence the environment of freshwater organisms, including the zooplankton community. Our research aimed to assess the impact of environmental and hydrological conditions on the zooplankton of sites upstream and downstream of canal locks. The study was carried out in 2021 and 2022. Water samples were collected monthly from two canals during the growing season. We evaluated how water flow velocity and selected environmental parameters (i.e., water temperature, Secchi disk visibility, conductivity, oxygen concentration, saturation, pH and chl-a concentrations) influence the zooplankton diversity (T) density (N) and biomass (B). Our study showed that the zooplankton of the canals was highly diverse. Rotifers dominated over crustaceans in diversity and density at all sites of canals. The statistical analysis revealed differences in environmental and biological conditions between habitats located upstream and downstream of locks. Rotifers density and biomass changed approximately proportionally to changes in chlorophyll at sites upstream of locks. It supports the hypothesis that rotifer communities are defined by the bottom-up effect linked to food supply (phytoplankton). The growth of crustaceans (density and biomass), as well as total zooplankton biomass, was affected by water temperature at sites downstream of the lock.</div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"24 3","pages":"Pages 599-607"},"PeriodicalIF":2.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1642359323001416/pdfft?md5=3a3d7818c205d9e518b6956988306c0b&pid=1-s2.0-S1642359323001416-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138691744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Abundance of bacteria in beaches of the southern Baltic Sea differing in the level of anthropogenic pressure 波罗的海南部不同人为压力水平海滩上的细菌数量

IF 2.7 4区环境科学与生态学

Ecohydrology & Hydrobiology Pub Date : 2024-07-01 DOI: 10.1016/j.ecohyd.2024.01.008

{"title":"Abundance of bacteria in beaches of the southern Baltic Sea differing in the level of anthropogenic pressure","authors":"","doi":"10.1016/j.ecohyd.2024.01.008","DOIUrl":"10.1016/j.ecohyd.2024.01.008","url":null,"abstract":"<div>The present study focused on the abundance of bacteria in the sand of marine beaches on the southern Baltic Sea coast which differed in the level of anthropogenic pressure. The results showed that the maximum (17.60·106cells · g−1dw.) bacterial abundance was noted on the beach characterized by the highest level of anthropogenic pressure and minimum (10.48·106cells · g−1dw.) on the beach located in the Słowiński National Park. Generally, differences were found in the studied abundance and biomass of bacteria in all investigated beaches in their horizontal profile. The maximum (18.81–23.52·106cells · g−1dw.) density of bacteria was recorded in the dry zones, i.e., dune and the middle part of the beach, and the minimum (9.04–10.52·106cells · g−1dw.) in the wet zones, i.e., under seawater surface and at the waterline. The differences in the abundance of bacteria were found between the surface and subsurface sand layers in the studied beaches. Usually, the highest (19.60·106cells · g−1dw.) number of bacterial cells was determined in the surface sand layer, while with an increasing depth their number decreased. A seasonal variation in bacterial abundance was also documented in the studied beaches. This study resulted in increased knowledge on marine bacteriopsammon abundance, which, as a secondary producer, plays a very important role as the main link between primary producers and higher trophic levels of benthic food webs in marine ecosystems.</div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"24 3","pages":"Pages 659-666"},"PeriodicalIF":2.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139814194","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 review on hydrobiogeochemical modelling in freshwater wetlands: Insights into model characteristics and applicability 淡水湿地水文地球化学建模综述：洞察模型的特点和适用性

IF 2.7 4区环境科学与生态学

Ecohydrology & Hydrobiology Pub Date : 2024-07-01 DOI: 10.1016/j.ecohyd.2023.08.003

引用次数: 0

Strengthening oil pollution monitoring system in aquatic environment through development of IoT-based Oil-Water Separator Device 通过开发基于物联网的油水分离器加强水生环境中的石油污染监测系统

IF 2.7 4区环境科学与生态学

Ecohydrology & Hydrobiology Pub Date : 2024-07-01 DOI: 10.1016/j.ecohyd.2023.06.002

{"title":"Strengthening oil pollution monitoring system in aquatic environment through development of IoT-based Oil-Water Separator Device","authors":"","doi":"10.1016/j.ecohyd.2023.06.002","DOIUrl":"10.1016/j.ecohyd.2023.06.002","url":null,"abstract":"<div>Oil spills are a serious pollution problem in water ecosystems, causing significant damage to living things and the environment. The demand for devices to handle oil remediation is increasing due to the frequent occurrence of oil spills. To date, numerous works have been reported to address this pollution problem, but most of them do not utilize Internet of Things (IoT) technology. Having an IoT system of this kind would improve operational efficiency by providing real-time data, alerts, and notifications of oil pollution through monitoring systems. This study presents the development of an IoT-based automatic oil-water separator device to support an oil pollution monitoring system in water ecosystems. The built device consists of sensors, a microcontroller, and an actuator, with the capability to automatically detect oil pollution and perform water-oil separation. The device incorporates a monitoring system. The water-oil separation was carried out by applying semi-permeable membrane nanotechnology. Moreover, the device has undergone a series of oily-water separation experiments to simulate oil pollution, achieving an oil separation efficiency of 62.8% (on average) with good repeatability. Additionally, the automatic device is developed with IoT pairing with a website application for an online monitoring system. Users can monitor the process using a personal computer or smartphone via the web/mobile application at any time and from any place. It is of interest to explore this further since it offers an effective and implementable method to solve oil pollution problems in real-world applications.</div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"24 3","pages":"Pages 617-623"},"PeriodicalIF":2.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125834938","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

Using the SWAT+ model to assess the conditions of water inflow to a reservoir in an uncontrolled agricultural catchment. Case Study of the Nanan Reservoir in the Lake Taabo catchment (Côte d'Ivoire) 使用 SWAT+ 模型评估不受控制的农业集水区水库的进水条件。塔博湖集水区 Nanan 水库案例研究（科特迪瓦）

IF 2.7 4区环境科学与生态学

Ecohydrology & Hydrobiology Pub Date : 2024-07-01 DOI: 10.1016/j.ecohyd.2023.08.002

{"title":"Using the SWAT+ model to assess the conditions of water inflow to a reservoir in an uncontrolled agricultural catchment. Case Study of the Nanan Reservoir in the Lake Taabo catchment (Côte d'Ivoire)","authors":"","doi":"10.1016/j.ecohyd.2023.08.002","DOIUrl":"10.1016/j.ecohyd.2023.08.002","url":null,"abstract":"<div>In this study, the agro-hydrological model Soil and Water Assessment Tool + (SWAT+) is used to simulate runoff in an uncontrolled agricultural catchment with paddy fields irrigated by plots submersion. The objectives are to evaluate the ability of this new, improved version of the SWAT model to reproduce the flows in a complex catchment and to analyse the evolution of these flows over the historical period 1986-2020 (35 years). Sensitivity analysis, calibration and validation were carried out with monthly flow data. The decision tables for irrigation operations and reservoir water release were filled in the SWAT+ Editor to establish the reservoir water balance. The Mann-Kendall trend test with the threshold of the standard normal statistic = 1.96, was applied to the time series of flows to the Nanan Reservoir. The results reveal that SWAT+ is more sensitive to eight parameters, including the new CN3_SWF parameter (-0.04329), which gave the user control of the soil saturation level. Good performances were obtained during calibration and validation, respectively: NSE (0.78; 0.69); R² (0.81; 0.70); PBIAS (-18.58; -23.9) and RSR (0.47; 0.56), with a tendency to slightly overestimate flows. The analysis shows that flows to the Nanan Reservoir are highly variable yearly, with a non-significant upward trend (|Z|=1.3<1.96) from 1986 to 2020. The water balance reveals that the runoff inflow generated will compensate for water withdrawals for irrigation of the Nanan paddy scheme during this period. Furthermore, this study provides a methodological framework for SWAT+ reservoir model calibration in an uncontrolled catchment.</div>","PeriodicalId":56070,"journal":{"name":"Ecohydrology & Hydrobiology","volume":"24 3","pages":"Pages 568-582"},"PeriodicalIF":2.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132628468","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