Water Science & Technology: Water Supply最新文献_第8页

Analysis on influence of consolidation and settlement of deep silt soil on existing pipeline – take the project of the fourth water supply pipeline to Macao as an example 深淤泥土固结沉降对既有管道的影响分析——以澳门输水第四管道工程为例

Water Science & Technology: Water Supply Pub Date : 2023-09-14 DOI: 10.2166/ws.2023.238

Jian Song, Xuguang Zhao, Jin Xu, Zheng Shang, Dian Liu, Haijie Pan

引用次数: 0

Poly-γ-glutamic acid affects NH3 volatilization, soil nitrogen content, and soybean seedling growth 聚γ-谷氨酸影响NH3挥发、土壤氮含量和大豆幼苗生长

Water Science & Technology: Water Supply Pub Date : 2023-09-11 DOI: 10.2166/ws.2023.228

Lu Liu, Wenjuan Shi

{"title":"Poly-<i>γ</i>-glutamic acid affects NH3 volatilization, soil nitrogen content, and soybean seedling growth","authors":"Lu Liu, Wenjuan Shi","doi":"10.2166/ws.2023.228","DOIUrl":"https://doi.org/10.2166/ws.2023.228","url":null,"abstract":"Abstract Poly-γ-glutamic acid (γ-PGA) is a soil amendment that has been shown to enhance soil water retention capacity. However, the effects of γ-PGA on soil NH3 volatilization, soil nitrogen pool, and crop growth have been rarely studied. This study aimed to investigate the effect of γ-PGA on NH3 volatilization, soil mineral nitrogen content, and soybean seed productivity. We conducted an incubation experiment and a pot experiment using two different textured soils (sandy soil and sandy loam soil) with four γ-PGA application rates (0, 0.1, 0.3, and 0.5%, w/w). The results showed that the application of γ-PGA decreased the peak value of NH3 volatilization and cumulative NH3 emission through the incubation experiment. Cumulative NH3 volatilization decreased with increasing γ-PGA application amount. The addition of γ-PGA to sandy soil and sandy loam soil increased soil N content by 17–63% and 7–33%, respectively. Based on pot experimental results and principal component analysis, we recommend the optimal rates of γ-PGA application were 0.3% (w/w) in sandy soil and 0.1% (w/w) in sandy loam soil. This study provides a theoretical basis for the addition of γ-PGA as a promising strategy to reduce NH3 volatilization and increase soil nitrogen content.","PeriodicalId":23573,"journal":{"name":"Water Science & Technology: Water Supply","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135981839","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

Developing a real-time self-organizing algorithm for irrigation planning of rapeseed cultivation 油菜籽灌溉规划的实时自组织算法研究

Water Science & Technology: Water Supply Pub Date : 2023-09-01 DOI: 10.2166/ws.2023.241

Yunzhong Dai, Kuan-yu Chen

{"title":"Developing a real-time self-organizing algorithm for irrigation planning of rapeseed cultivation","authors":"Yunzhong Dai, Kuan-yu Chen","doi":"10.2166/ws.2023.241","DOIUrl":"https://doi.org/10.2166/ws.2023.241","url":null,"abstract":"Abstract Sustainable planning of water allocation in the agricultural sector requires attention to soil, plant, climate and their limitations. This study was conducted in order to develop a real-time framework for simulating soil–water balance in the root zone, crop growth curve and irrigation planning of rapeseed cultivation in Henan Province, China during a cropping season from March to October 2022. Simulation of production functions with field information calibration at daily time step was developed to accurately estimate the simulation of crop growth and soil water balance. Particle swarm optimization (PSO) algorithm is incorporated as an efficient tool to evaluate the water productivity as objective function in a self-organizing framework. Choosing the appropriate planting date for rapeseed cultivation at the beginning of the growing season was evaluated to increase the use of precipitation for canopy cover growth and thus reduce irrigation water consumption. The results showed that the proposed model increased water productivity by 23% as the objective function, and evaporation from the soil surface decreased by 16%. The maximum difference between the irrigation depth in the optimal and existing strategies was 41 mm in the germination stages until the seed-filling stage, which caused a decrease in final biomass and plant transpiration.","PeriodicalId":23573,"journal":{"name":"Water Science & Technology: Water Supply","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135349186","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

Improving the remote sensing process of evapotranspiration in the SEBAL algorithm using meta-heuristic models 利用元启发式模型改进SEBAL算法中蒸散发的遥感过程

Water Science & Technology: Water Supply Pub Date : 2023-09-01 DOI: 10.2166/ws.2023.237

Mehdi Komasi, Soroush Sharghi

{"title":"Improving the remote sensing process of evapotranspiration in the SEBAL algorithm using meta-heuristic models","authors":"Mehdi Komasi, Soroush Sharghi","doi":"10.2166/ws.2023.237","DOIUrl":"https://doi.org/10.2166/ws.2023.237","url":null,"abstract":"Abstract This paper investigated how the meta-heuristic models can be used to facilitate the estimation of evapotranspiration (ET) images. Focusing on estimating daily ET directly from received images of the electromagnetic bands of Landsat 8 satellite utilizing metaheuristic models, authors used daily ET images estimated by the SEBAL algorithm to calibrate and verify these models. The results of this research showed that the ANN model with DC and RMSE of 0.98 and 0.09025 mm/day, respectively, is more accurate compared to the ACO (with DC = 0.65 and RMSE = 1.45 mm/day) and PSO (with DC = 0.23 and RMSE = 1.60 mm/day) models in the verification stage in estimating daily ET images. The ACO model compared to the PSO model is more accurate in estimating ET images with DC of 0.65 and 0.23 in the verification step, respectively. While removing half of the training data, the accuracy of the PSO model surpasses the ACO model with DC of 0.85 and 0.80, respectively. Also, the ANN model is more accurate than the other two models in estimating ET, both when considering all the data and half of the training data (with DC = 0.98 and RMSE = 0.09 mm/day).","PeriodicalId":23573,"journal":{"name":"Water Science & Technology: Water Supply","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135298221","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

Corrigendum: Water Supply 23 (7), 2662–2675: A quantitative and qualitative investigation of ball and foam covers coated with cement slurry and their composition on reducing evaporation and choosing the best coating by the AHP method, Hojat Karami, Alireza Sobhi and Ramazan Vagheei, https://dx.doi.org/10.2166/ws.2023.160 勘误表:供水23(7)，2662-2675:用AHP法定量和定性研究涂覆水泥浆的球形和泡沫盖板及其成分对减少蒸发和选择最佳涂层的影响，Hojat Karami, Alireza Sobhi和Ramazan Vagheei, https://dx.doi.org/10.2166/ws.2023.160

Water Science & Technology: Water Supply Pub Date : 2023-08-01 DOI: 10.2166/ws.2023.225

引用次数: 0

Water security: a Geospatial Framework for urban water resilience 水安全:城市水弹性的地理空间框架

Water Science & Technology: Water Supply Pub Date : 2023-07-31 DOI: 10.2166/ws.2023.189

Jyoti Jain Tholiya, Navendu Chaudhary

{"title":"Water security: a Geospatial Framework for urban water resilience","authors":"Jyoti Jain Tholiya, Navendu Chaudhary","doi":"10.2166/ws.2023.189","DOIUrl":"https://doi.org/10.2166/ws.2023.189","url":null,"abstract":"Abstract Urban water issues impacting sustainable development can be analyzed, modeled, and mapped through cutting-edge geospatial technologies; however, the water sector in developing countries suffers various spatial data-related problems such as limited coverage, unreliable data, limited coordination, and sharing. Available spatial data are limited to the aggregate level (i.e., national, state, and district levels) and lack details to make informed policy decisions and allocations. Despite significant advancements in geospatial technologies, their application and integration at the policy and decision-making level are rare. The current research provides a broad GIS-centric framework for actionable science, which focuses on real context and facilitates geospatial maps and theoretical and practical knowledge to address various water issues. The study demonstrates the application of the proposed Geospatial Framework from technical and institutional perspectives in water-stressed zones in Pune city, showing where and how to solve problems and where proposed actions can most impact creating a sustainable water-secured future. The framework makes it possible for everyone to explore datasets that can provide a baseline for research, and analysis, contribute to the process, propose, and act on solutions, and take the benefits of the outcomes and policy recommendations.","PeriodicalId":23573,"journal":{"name":"Water Science & Technology: Water Supply","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135155368","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

Characteristics of the temporal and spatial evolution of rainfall under the influence of urbanization: a case study of the Beijing–Tianjin–Hebei region 城市化影响下的降雨时空演变特征——以京津冀地区为例

Water Science & Technology: Water Supply Pub Date : 2023-06-28 DOI: 10.2166/ws.2023.161

Chengcheng Xu, Yanzhen Wang, Baiqing Xiao, Qingyan Sun, Chuiyu Lu, Chu Wu

{"title":"Characteristics of the temporal and spatial evolution of rainfall under the influence of urbanization: a case study of the Beijing–Tianjin–Hebei region","authors":"Chengcheng Xu, Yanzhen Wang, Baiqing Xiao, Qingyan Sun, Chuiyu Lu, Chu Wu","doi":"10.2166/ws.2023.161","DOIUrl":"https://doi.org/10.2166/ws.2023.161","url":null,"abstract":"Abstract With rapid urbanization in recent years, the frequency of extreme rainfall events has increased in major cities around the world during the flood season, and the social and economic losses caused by heavy rainfall are becoming increasingly serious. The results show that (1) the overall duration of rainfall exhibits a downward trend, and the overall spatial performance gradually decreases from east to west. (2) The mountainous areas are prone to light and moderate rainfall events; the plains are more prone to rainfall events at levels above moderate rain, especially rainstorms and heavy rain events; the probability of light and moderate rainfall events in the suburbs is close to that of the urban areas, but the probability of rainfall events at levels above heavy rain is less than that of the urban areas; the probability of rainfall events of all levels in the outer suburbs is higher. (3) Increase in rainfall in urban areas compared to the southern suburbs is greater. (4) With increasing urbanization, the built environment in the mountainous areas and plains has continued to grow, and the original underlying surface conditions have changed.","PeriodicalId":23573,"journal":{"name":"Water Science & Technology: Water Supply","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135310205","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

Groundwater quality analysis using different water quality indices in the hard rock aquifer region in semi-arid environment 半干旱环境下硬岩含水层不同水质指标的地下水水质分析

Water Science & Technology: Water Supply Pub Date : 2023-06-21 DOI: 10.2166/ws.2023.150

Dimple Dimple, Pradeep Kumar Singh, Mahesh Kothari, Kamal Kishore Yadav, Sita Ram Bhakar

{"title":"Groundwater quality analysis using different water quality indices in the hard rock aquifer region in semi-arid environment","authors":"Dimple Dimple, Pradeep Kumar Singh, Mahesh Kothari, Kamal Kishore Yadav, Sita Ram Bhakar","doi":"10.2166/ws.2023.150","DOIUrl":"https://doi.org/10.2166/ws.2023.150","url":null,"abstract":"Abstract The present study aimed to assess the groundwater quality in the hard rock aquifer system of the Nand Samand catchment for irrigation use by employing distinct water quality indices (sodium adsorption ratio, per cent sodium, electrical conductivity, residual sodium carbonate, soluble sodium per cent, Kelly's ratio, and permeability index) and also, using graphical illustration techniques (United States Salinity Laboratory (USSL) diagram, Piper, Gibbs, Wilcox, and Chadha diagram, Rajasthan, India. Groundwater samples were collected in two seasons, i.e., pre-monsoon and post-monsoon seasons (for the years 2019 and 2020). Ninety-five samples were collected and analyzed to assess overall groundwater quality for irrigation use. The USSL diagram indicated that the maximum groundwater samples were classified under categories C3S1 and C4S1 during the pre-monsoon season, indicating groundwater suitable for irrigation. The major facies observed in groundwater are mixed Ca–Mg–Cl, CaHCO3, and Ca–Mg–Cl type. Gibbs's diagram depicts that the maximum groundwater samples belonged to the evaporation–crystallization zone, which raises salinity by raising sodium and chloride concerning the increase of total dissolved solids. The results showed that the majority of the samples are suitable for irrigation, and the suitability improves during the post-monsoon season.","PeriodicalId":23573,"journal":{"name":"Water Science & Technology: Water Supply","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136355465","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

Water resource management based on wireless virtualization in wastewater reclamation and utilization in dryland botanical garden 基于无线虚拟化的旱地植物园废水回收利用水资源管理

Water Science & Technology: Water Supply Pub Date : 2023-06-20 DOI: 10.2166/ws.2023.151

Guanyu Chen

{"title":"Water resource management based on wireless virtualization in wastewater reclamation and utilization in dryland botanical garden","authors":"Guanyu Chen","doi":"10.2166/ws.2023.151","DOIUrl":"https://doi.org/10.2166/ws.2023.151","url":null,"abstract":"Abstract The research on the management and distribution of renewable water resources mostly adopts the method of combining the intelligent optimization algorithm and the target planning model. In this paper, four water distribution users are used as categories, and the problem of renewable water resources allocation is transformed into a classification problem, which is included in the category of wireless virtualization processing problems, and wireless virtualization is selected to support the allocation of renewable water resources. Experiments show that the water shortage of the water distribution scheme obtained by the method in this paper is lower than that of the optimal water distribution scheme of the traditional intelligent optimization algorithm. It can also be seen from the water distribution cost and water shortage of a single user that the water distribution effect of the method in this paper is better than that of the traditional intelligent optimization algorithm (P&lt;0.05). It shows that the research on the management and distribution method of renewable water resources based on wireless virtualization not only provides new ideas for dealing with configuration problems but also has important significance for alleviating the shortage of water resources in our country and the management and utilization of renewable water resources.","PeriodicalId":23573,"journal":{"name":"Water Science & Technology: Water Supply","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135236347","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

Improving secondary settling tanks performance by applying CFD models for design and operation 将CFD模型应用于二次沉降池的设计和运行，提高二次沉降池的性能

Water Science & Technology: Water Supply Pub Date : 2023-06-01 DOI: 10.2166/ws.2023.136

Sabri Dairi, Wassila Khoualdia, Dounia Mrad, Ali Bouamrane, Yassine Djebbar, Habib Abida

{"title":"Improving secondary settling tanks performance by applying CFD models for design and operation","authors":"Sabri Dairi, Wassila Khoualdia, Dounia Mrad, Ali Bouamrane, Yassine Djebbar, Habib Abida","doi":"10.2166/ws.2023.136","DOIUrl":"https://doi.org/10.2166/ws.2023.136","url":null,"abstract":"Abstract This study uses computational fluid dynamics (CFD) models for an improved performance of secondary settling tanks, taking as a case study the wastewater treatment plant (WWTP) of Souk-Ahras City, Northeastern Algeria. Unlike previous studies, which focused primarily on simulations of real-time clarifiers by independent measures, this study combines differentoperating criteria and geometric standards on clarifiers to estimate the ultimate capacity of secondary sedimentation tanks (SST). Numerical simulations were performed toassess the SST hydraulic performance under different conditions in order to (i) eliminate vortex zones; (ii) optimize the surface overflow rate (SOR) and predict sludge blanket height (SBH), and finally, (iii) estimate SST ultimate capacity. Based on the current configuration of the SST of Souk-Ahras WWTP, its hydraulic treatment capacity was found to be 49,000 m3/d. The results obtained, which were validated by field observations, showed that optimizing the different parameters yields a significantly improved SST performance. Furthermore, the tests consideredwere shown to be satisfactorily correlated with SOR. Validation using the receiver operating characteristic (ROC) curve analysis yielded anarea under curve (AUC) value of 90%, implying thereby a reasonably good performance. Indeed, optimization resulted in increased solidremoval efficiency and increased SOR to 1.4 m.h−1 (compared to 0.8 m.h−1 in literature) without overflow beyond the SBH.","PeriodicalId":23573,"journal":{"name":"Water Science & Technology: Water Supply","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135938134","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