International Journal of River Basin Management最新文献_第10页

Assessing social vulnerability to riverbank erosion across the Vietnamese Mekong Delta 评估越南湄公河三角洲河岸侵蚀的社会脆弱性

IF 2.5

International Journal of River Basin Management Pub Date : 2021-12-29 DOI: 10.1080/15715124.2021.2021926

V. Tri, Phan Ky Trung, T. Trong, D. Parsons, S. Darby

{"title":"Assessing social vulnerability to riverbank erosion across the Vietnamese Mekong Delta","authors":"V. Tri, Phan Ky Trung, T. Trong, D. Parsons, S. Darby","doi":"10.1080/15715124.2021.2021926","DOIUrl":"https://doi.org/10.1080/15715124.2021.2021926","url":null,"abstract":"ABSTRACT Climate change and trans-boundary development in the major deltas of the world, including the Vietnamese Mekong Delta have exacerbated environmental risks. Land subsidence, riverbed sand mining, and intensive groundwater extraction have all contributed to lower channel bed levels, resulting in riverbank erosion and the loss of assets and livelihoods for local residents. This study investigated the drivers, and classified the social vulnerability of local communities affected by riverbank erosion along two main branches in the Vietnamese Mekong. Direct interviews were conducted with 218 erosion-affected households along the Mekong and Bassac rivers in Dong Thap and An Giang provinces in order to create a social vulnerability index. More than 70% of the total surveyed households belonged to the highly, moderately, or low vulnerability groups, suggesting a range of affected communities within the sample, some of whom had the ability to cope with its short-term impacts. However, the estimated social vulnerability index revealed significant geographical heterogeneity, with communities along the Mekong branch being more vulnerable than those along the Bassac. The recommendations from our investigations include the establishment of community awareness programmes, as well as policy changes that ensure and support local residents’ livelihoods adaptation. Stakeholder participation and enhanced community engagement was found to be the most important tools available in terms of aiding local people cope with the complex impacts of riverbank erosion.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44169513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Comparison between NARX-NN and HEC-HMS models to simulate Wadi Seghir catchment runoff events in Algerian northern NARX-NN和HEC-HMS模型模拟阿尔及利亚北部Wadi Seghir流域径流事件的比较

IF 2.5

International Journal of River Basin Management Pub Date : 2021-12-16 DOI: 10.1080/15715124.2021.2016781

Ismahen Kadri, R. Mansouri, Amir Aieb

{"title":"Comparison between NARX-NN and HEC-HMS models to simulate Wadi Seghir catchment runoff events in Algerian northern","authors":"Ismahen Kadri, R. Mansouri, Amir Aieb","doi":"10.1080/15715124.2021.2016781","DOIUrl":"https://doi.org/10.1080/15715124.2021.2016781","url":null,"abstract":"ABSTRACT\u0000 This paper presents a comparison between the black box Nonlinear Auto-Regressive with eXogenous inputs-Neural Network (NARX-NN) and the conceptual Hydrologic Engineering Centre-Hydrologic Modelling System (HEC-HMS) Rainfall-Runoff models. The two models were applied on a small urban watershed to assess its response to fourteen hourly real storm events. The differences between the steps engaged in each model to reach the hydrograph were presented in detail. The estimation of the best parameters is carried out using a weighted average function during the calibration phase. A statistical evaluation was conducted to assess the model’s performance thereafter; a critical comparison was made to illustrate the differences and discuss the steps involved. The results indicate that both models successfully reflect the urban basin runoff. However, the NARX-NN outperforms in the testing phase owing to their strength generalization feature. The NARX-NN model has more strength to produce the shape bending of the hydrograph. Consequently, this model is better to highlight the curvatures resulting from the local peaks of rainfall.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44982407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Potential predictability of suspended sediment concentration in the data constrained regions of the Mahanadi River basin, Eastern India 印度东部马哈纳迪河流域数据受限区域悬浮泥沙浓度的潜在可预测性

IF 2.5

International Journal of River Basin Management Pub Date : 2021-12-16 DOI: 10.1080/15715124.2021.2016782

Rohan Kar, Arindam Sarkar

{"title":"Potential predictability of suspended sediment concentration in the data constrained regions of the Mahanadi River basin, Eastern India","authors":"Rohan Kar, Arindam Sarkar","doi":"10.1080/15715124.2021.2016782","DOIUrl":"https://doi.org/10.1080/15715124.2021.2016782","url":null,"abstract":"ABSTRACT The study proposes an efficient method to evaluate the suspended sediment concentration (SSC) relative to the traditional sediment rating curves (SRC) for gauged stations and subsequently to predict the SSC in ungauged stations of a major river basin. Multiple environmental control parameters were collected from 16 stations along the Mahanadi River basin (MRB) during the monsoon season. The hysteresis behaviour of SSC is assessed and therefore considered for modelling SSC using linear mixed-effects modelling (LMM). A basin-scale rating model is proposed using principal component analysis and stepwise multiple linear regression for estimating the unmeasured SSC. The findings show that the MRB acts differently in terms of hysteresis, with distinct dilution and flushing regimes in SRC. LMM outscored SRC by nearly doubling the mean covariance and notably reducing the percent bias between observed and predicted data across stations. However, unlike LMM, SRC could not correctly estimate low and high SSCs of ≤ 0.05 g/l and ≥ 1.5 g/l, respectively. The error metrics of the proposed rating model are within acceptable limits for all ungauged stations. Nevertheless, its efficiency varies due to smaller catchment areas, non-linearity in sediment transport with respect to catchment area, and other sampling issues. As a result, compared to other known models applied on the MRB, this model has the lowest error and seems to be the best in predicting monthly SSC.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49322141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Improved assessment of maximum streamflow for risk management of hydraulic infrastructures. A case study 改进了水力基础设施风险管理的最大流量评估。案例研究

IF 2.5

International Journal of River Basin Management Pub Date : 2021-12-16 DOI: 10.1080/15715124.2021.2016783

A. M. Bento, A. Gomes, J. P. Pêgo, T. Viseu, Lúcia Couto

{"title":"Improved assessment of maximum streamflow for risk management of hydraulic infrastructures. A case study","authors":"A. M. Bento, A. Gomes, J. P. Pêgo, T. Viseu, Lúcia Couto","doi":"10.1080/15715124.2021.2016783","DOIUrl":"https://doi.org/10.1080/15715124.2021.2016783","url":null,"abstract":"ABSTRACT Understanding the risks associated with the likelihood of extreme events and their respective consequences for the stability of hydraulic infrastructures is essential for flood forecasting and engineering design purposes. Accordingly, a hydrological methodology for providing reliable estimates of extreme discharge flows approaching hydraulic infrastructures was developed. It is composed of a preliminary assessment of missing data, quality and reliability for statistically assessing the frequency of flood flows, allied to parametric and non-parametric methods. Model and parameter uncertainties are accounted for by the introduced and proposed modified model averaging (modified MM) approach in the extreme hydrological event's prediction. An assessment of the parametric methods accuracy was performed by using the non-parametric Kernel Density Estimate (KDE) as a benchmark model. For demonstration and validity purposes, this methodology was applied to estimate the design floods approaching the case study ‘new Hintze Ribeiro bridge’, located in the Douro river, one of the three main rivers in Portugal, and having one of Europe's largest river flood flows. Given the obtained results, the modified MM is considered a better estimation method.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48470649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A water quality assessment of Arpa River under Bilaspur-Arpa basin area, of Chhattisgarh state 恰蒂斯加尔邦Bilaspur-Arpa流域地区的Arpa河水质评估

IF 2.5

International Journal of River Basin Management Pub Date : 2021-12-13 DOI: 10.1080/15715124.2021.2016780

P. Soni, Pushpraj Singh

{"title":"A water quality assessment of Arpa River under Bilaspur-Arpa basin area, of Chhattisgarh state","authors":"P. Soni, Pushpraj Singh","doi":"10.1080/15715124.2021.2016780","DOIUrl":"https://doi.org/10.1080/15715124.2021.2016780","url":null,"abstract":"ABSTRACT Assessment and management of river water resources are essential to sustain life on the earth. Wetlands are the richest habitats sharing the large population of the existing living organisms. The river is a vital protection habitat due to rich biodiversity. The abundance, richness, diversity of various organisms are frequently used as an indicator for determining physicochemical and biological properties of the river as a wetland habitat. Therefore, the river basin areas should be evaluated for suitability for household, agricultural and industrial use. Untreated discharge of water in the river causes many problems not only for aquatic but also for human beings. So, the seasonal water pollution is a highly demandable subject and requires the water quality index. In the present study, the river water samples were collected from the selected twenty locations of the Arpa River to observe the physicochemical investigations such as temperature, pH, Dissolve Oxygen, Biological Oxygen Demand, Total Dissolved Solids, phosphate, and nitrate per the standard protocol. The present study depicted that water quality of the Arpa River was not suitable for human consumption. The Arpa River needs continuous monitoring because it is filled with the garbage and other waste material and encroached by the local people for fishing, bathing, and may anthropogenic activities, etc. The findings of the present work may help for the physicochemical investigation of new researchers and governing bodies for the sustainable supervision and protection of river water resources in the Arpa River basin.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46534868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Utility of caddisflies (Insecta: Trichoptera) as indicators of water quality in Kallada River, Kerala, India 印度喀拉拉邦Kallada河水质量指标的应用研究

IF 2.5

International Journal of River Basin Management Pub Date : 2021-12-03 DOI: 10.1080/15715124.2021.2002347

Dani Benchamin, S. R., Beena S. Kurup

{"title":"Utility of caddisflies (Insecta: Trichoptera) as indicators of water quality in Kallada River, Kerala, India","authors":"Dani Benchamin, S. R., Beena S. Kurup","doi":"10.1080/15715124.2021.2002347","DOIUrl":"https://doi.org/10.1080/15715124.2021.2002347","url":null,"abstract":"ABSTRACT The perennial Kallada River originates at Karimalai-Kodakkal in the Southern part of Sahyadri (Western Ghats), running through Kollam, Pathanamthitta, and Trivandrum districts of Kerala, India. One of the crucial World Bank aided and the most significant Irrigation projects in Kerala is centred on the Kallada River, and now this project is benefited for in 92 villages. However, it is essential to monitor the water quality of the Kallada River. The focus of the present study is to assess the water quality of the Kallada River using caddisflies (Trichoptera) as well as physicochemical parameters of water. Samples of caddisflies and water were collected from 6 sites in the river to monitor water quality during the pre-monsoon season. Altogether, more than 3000 specimens belonging to 5 different taxa were recorded. A multivariate statistical approach was applied to study the influences of the water quality on caddisflies fauna. The results indicate that the upstream supported community abundance than the downstream. Less abundance of caddisflies was observed in the midstream and downstream sites Punalur and West Kallada, respectively. Caddisflies were absent in the sixth site Koivila, resulting from saltwater intrusion from the Ashtamudy estuary and various anthropogenic activities such as boating, civic effluents, and fishing. Upstream sites showed good water quality conditions and caddisfly abundance. The Kallada River is under threat of anthropogenic disturbances, especially in the mid and downstream sections. The caddisfly assemblage proved to be suitable in identifying variations in water quality conditions in the Kallada River because of their significant responses to environmental fluctuations.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48521857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effects of climate change on river-ice processes and ice jams 气候变化对河流结冰过程和冰塞的影响

IF 2.5

International Journal of River Basin Management Pub Date : 2021-11-26 DOI: 10.1080/15715124.2021.2007936

B. Burrell, S. Beltaos, B. Turcotte

引用次数: 9

Effect of small-scale illegal mining on surface water and sediment quality in Ghana 加纳小规模非法采矿对地表水和沉积物质量的影响

IF 2.5

International Journal of River Basin Management Pub Date : 2021-11-17 DOI: 10.1080/15715124.2021.2002345

H. Darko, A. Karikari, A. Duah, B. A. Akurugu, Victor Mante, Frank Oblim Teye

{"title":"Effect of small-scale illegal mining on surface water and sediment quality in Ghana","authors":"H. Darko, A. Karikari, A. Duah, B. A. Akurugu, Victor Mante, Frank Oblim Teye","doi":"10.1080/15715124.2021.2002345","DOIUrl":"https://doi.org/10.1080/15715124.2021.2002345","url":null,"abstract":"ABSTRACT In Ghana, small-scale mining (SSM) has been carried out for many years, generating employment and income. Currently, illegal artisanal mining (‘galamsey’) has impacted the environment negatively, resulting in land degradation and water pollution. The government of Ghana, responding to public outcry against the negative effects of ‘galamsey’, placed a ban on illegal small-scale mining activities in March 2017. This ban stopped both ‘legal’ small-scale and the illegal artisanal miners from carrying out any such activity. In July 2018, this study was carried out to examine the status of water and sediment quality in eight endemic regions of illegal mining to ascertain the outcome of the ban on the water quality of the rivers. Methodologies in the Standard Methods for the Examination of Water and Wastewater were followed. Results of the study indicated that the rivers were high in total suspended solids (TSS), turbidity and colour, suggesting inflow of wastewater from the illegal mining activities and some run-off. Colour had a strong correlation with turbidity (r = 0.95) and TSS (r = 0.94), suggesting that the pollution originates from the same sources. Low levels of metals were found in both water and sediment. However, very high concentrations of Fe were detected in both water and sediment. Mercury concentrations were low in the water column but relatively higher in the sediment. A comparison of the general water quality status of the water bodies in the Pra Basin in 2013 and 2018 using the Water Quality Index (WQI) showed a marginal improvement in quality in 2018 over 2013 in the Pra Basin. The improvement of water quality in 2018 is attributable to the ban.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49438921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Influence of permeable groins with radial arrangement on local scour around groins: an experimental study 径向布置的透水丁坝对丁坝周围局部冲刷影响的试验研究

IF 2.5

International Journal of River Basin Management Pub Date : 2021-11-12 DOI: 10.1080/15715124.2021.2005614

Fatemeh Maleki, S. Abbasi

引用次数: 1

Baseflow and water resilience variability in two water management units in southeastern Brazil 巴西东南部两个水管理单元的基流和水恢复力变异性

IF 2.5

International Journal of River Basin Management Pub Date : 2021-11-09 DOI: 10.1080/15715124.2021.2002346

L. Santarosa, Didier Gastmans, T. Gilmore, J. Boll, S. Betancur, Vitor Fidelis Monteiro Gonçalves

{"title":"Baseflow and water resilience variability in two water management units in southeastern Brazil","authors":"L. Santarosa, Didier Gastmans, T. Gilmore, J. Boll, S. Betancur, Vitor Fidelis Monteiro Gonçalves","doi":"10.1080/15715124.2021.2002346","DOIUrl":"https://doi.org/10.1080/15715124.2021.2002346","url":null,"abstract":"ABSTRACT Changes in climate and water demand in densely populated regions increasingly affect hydrological systems, and, in turn, impact socioeconomic conditions. In this case study, we identify how the hydrogeological frameworks of two water resource management units, Tietê-Jacaré (TJ) and Piracicaba-Capivari-Jundiaí (PCJ) in Sao Paulo state (Brazil), control the baseflow processes and resilience in the face of streamflow fluctuations in response to anthropogenic activities and climate variation. The results reveal between 40% and 75% contributions of baseflow to total streamflow in basins overlying crystalline and sedimentary aquifers. The basins in PCJ which mostly overly crystalline aquifers, have shorter water residence times and greater dependence on surface water. Therefore, streamflow in the PCJ basins is vulnerable during the drought period and the management model affected the water resilience of the basins (transfer of water to Cantareira System). The TJ basins have greater streamflow contributions from aquifer discharge linked to the presence of important sedimentary aquifers, which improves resilience under changing rainfall patterns, these basins present a more stable situation of resilience. Ultimately, the two management units require different planning strategies with adaptive and dynamic actions to mitigate the social, economic, and environmental effects caused by the variability and reduction of water sources. Key points Assessment of the role hydrogeological framework in the baseflow and its impact on basin water security. Water management challenges faced to intense anthropological actions and changes in rainfall behaviour, case of tropical basins in metropolitan regions.","PeriodicalId":14344,"journal":{"name":"International Journal of River Basin Management","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2021-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41810597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3