Journal of Water Supply Research and Technology-aqua最新文献_第7页

A global synthetic analysis of the effects of reclaimed water irrigation on crop yield and water use efficiency 再生水灌溉对作物产量和水分利用效率影响的全球综合分析

IF 4.3

Journal of Water Supply Research and Technology-aqua Pub Date : 2023-07-11 DOI: 10.2166/ws.2023.168

Zhenjie Qiu, Mengying Sun

{"title":"A global synthetic analysis of the effects of reclaimed water irrigation on crop yield and water use efficiency","authors":"Zhenjie Qiu, Mengying Sun","doi":"10.2166/ws.2023.168","DOIUrl":"https://doi.org/10.2166/ws.2023.168","url":null,"abstract":"\u0000 \u0000 To quantitatively evaluate the effect of RW irrigation on yield, WUE, and IWUE, and identify aqueous, edaphic, and management factors that favor improved yield, WUE, and IWUE compared to control practices, a meta-analysis was conducted. The results indicated that RW irrigation is beneficial for improving crop yields, WUE, and IWUE (16.8, 23.8, and 18.7%, respectively). However, its effectiveness is highly dependent on the aqueous, edaphic, and management factors of the studies evaluated. Greater responses were found in practices using RW with a pH < 7 or a nitrogen content <100 mg/L. The soils with a pH ≥ 7, electrical conductivity between 2 and 4 dS/m, bulk density <1.35 g/cm3, and/or initial nitrogen content between 200 and 2,000 mg/kg produced the highest effect size. Furthermore, using a surface drip irrigation system, with a nitrogen fertilizer rate <1,000 kg/ha and irrigation level at 100% crop evapotranspiration are effective ways to use RW. Our findings highlight the potential of RW irrigation to improve crop yield, WUE, and IWUE and identify the conditions under which these results can be achieved. These results can provide a better understanding of RW irrigation and guide the practice of RW utilization in the future.","PeriodicalId":17553,"journal":{"name":"Journal of Water Supply Research and Technology-aqua","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77858168","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

A hydrogeochemical study of groundwater of district Ballia, U.P., India 印度北方邦巴利亚地区地下水水文地球化学研究

IF 4.3

Journal of Water Supply Research and Technology-aqua Pub Date : 2023-07-10 DOI: 10.2166/ws.2023.166

S. K. Verma, Shriram Chaurasia

引用次数: 0

Diffusion of point source pollutants in the tee structure 点源污染物在三通结构中的扩散

IF 4.3

Journal of Water Supply Research and Technology-aqua Pub Date : 2023-07-05 DOI: 10.2166/ws.2023.167

Bin Sun, Wenjun Ma, Qingfeng Peng, Zhiwei Li, Wei Zheng, Tao Ren

引用次数: 0

Technical and environmental aspects of solar photo-voltaic water pumping systems: a comprehensive survey 太阳能光伏水泵系统的技术和环境方面:综合调查

IF 4.3

Journal of Water Supply Research and Technology-aqua Pub Date : 2023-07-05 DOI: 10.2166/ws.2023.165

V. Gunasekaran, Suprava Chakraborty

{"title":"Technical and environmental aspects of solar photo-voltaic water pumping systems: a comprehensive survey","authors":"V. Gunasekaran, Suprava Chakraborty","doi":"10.2166/ws.2023.165","DOIUrl":"https://doi.org/10.2166/ws.2023.165","url":null,"abstract":"\u0000 \u0000 Several sectors including agriculture and farming rely on renewable source-based water pumping due to recurrent hikes in fossil fuel prices and contaminant environment. In recent decades, a solar photovoltaic-based water pumping system (SPVWPS) has been a more popularly chosen technique for its feasibility and economic solution to the end-users. The initial cost, efficiency, orientation, auxiliary storage, head, and payback period are the technical issues, whereas transportation, lack of skilled people, theft, vandalism community, and politics are the social challenges that may prevent the solar pumps from being widely adopted. However, more subsidies, training, tax breaks, and remote monitoring can make this technology more accessible. Also, this article emphasizes various parameters affecting system performance, such as the suitable selection of panels, power conditioning units, motors, pumps, the payback period of the energy, and cost. Moreover, this article covers the technical and environmental facets of the SPVWPS, which helps researchers, policymakers, manufacturers, and end-users to design and choose a suitable pumping system. Major findings are stand-alone SPVWPS is highly recommended in areas with a maximum of 50 m dynamic head and a minimum of 2,000 m from local grid power. Moreover, along with the 25-year life span of the 25-kW SPVWPS could generate 150 MWh/year and reduce about 86,500 kg of CO2 emissions.","PeriodicalId":17553,"journal":{"name":"Journal of Water Supply Research and Technology-aqua","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2023-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85569713","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

A deep learning model with spatio-temporal graph convolutional networks for river water quality prediction 基于时空图卷积网络的深度学习河流水质预测模型

IF 4.3

Journal of Water Supply Research and Technology-aqua Pub Date : 2023-07-04 DOI: 10.2166/ws.2023.164

Juan Huan, Wenjie Liao, Yong J. Zheng, Xiangen Xu, Hao Zhang, Bing Shi

{"title":"A deep learning model with spatio-temporal graph convolutional networks for river water quality prediction","authors":"Juan Huan, Wenjie Liao, Yong J. Zheng, Xiangen Xu, Hao Zhang, Bing Shi","doi":"10.2166/ws.2023.164","DOIUrl":"https://doi.org/10.2166/ws.2023.164","url":null,"abstract":"\u0000 \u0000 High-precision water quality prediction plays a vital role in preventing and controlling river pollution. However, river water's highly nonlinear and complex spatio-temporal dependencies pose significant challenges to water quality prediction tasks. In order to capture the spatial and temporal characteristics of water quality data simultaneously, this paper combines deep learning algorithms for river water quality prediction in the river network area of Jiangnan Plain, China. A water quality prediction method based on graph convolutional network (GCN) and long short-term memory neural network (LSTM), namely spatio-temporal graph convolutional network model (ST-GCN), is proposed. Specifically, the spatio-temporal graph is constructed based on the spatio-temporal correlation between river stations, the spatial features in the river network are extracted using GCN, and the temporal correlation of water quality data is obtained by integrating LSTM. The model was evaluated using R2, MAE, and RMSE, and the experimental results were 0.977, 0.238, and 0.291, respectively. Compared with traditional regression models and general deep learning models, this model has significantly improved prediction accuracy, better stability, and generalization ability. The ST-GCN model can achieve high-precision water quality prediction in different river sections and provide technical support for water environment management.","PeriodicalId":17553,"journal":{"name":"Journal of Water Supply Research and Technology-aqua","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78885664","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

Identification and analysis of influencing factors on construction quality management for rural drinking water safety project 农村饮水安全工程施工质量管理影响因素识别与分析

IF 4.3

Journal of Water Supply Research and Technology-aqua Pub Date : 2023-07-03 DOI: 10.2166/ws.2023.162

Shuitai Xu, Meiling Chen, Yuhui Zhou, Yabo Wang

{"title":"Identification and analysis of influencing factors on construction quality management for rural drinking water safety project","authors":"Shuitai Xu, Meiling Chen, Yuhui Zhou, Yabo Wang","doi":"10.2166/ws.2023.162","DOIUrl":"https://doi.org/10.2166/ws.2023.162","url":null,"abstract":"\u0000 \u0000 Exploring the influencing factors of construction quality management is the key to ensuring the quality of rural drinking water safety projects. Based on the grounded theory, the influencing factors were identified and 65 relevant staff were selected by the objective sampling method for in-depth interviews to obtain the original data. In this study, 34 initial concepts, 18 main categories, and 5 core categories were collected and extracted for the rural drinking water project's safety engineering and construction quality management evaluation system. Furthermore, the incremental model of influencing factors on construction quality management performance of rural drinking water safety project was established by Decision-making Trial and Evaluation Laboratory-Interpretative Structural Modeling (DEMATEL-ISM) model. Through calculation and analysis, the key influencing factors of construction quality management performance of rural drinking water safety project were identified as controls on common quality problems, quality specification implementation, leadership level, acceptance management, design disclosure and modification, and human environment. Countermeasures and suggestions are proposed to improve the construction quality management performance of rural drinking water safety construction project.","PeriodicalId":17553,"journal":{"name":"Journal of Water Supply Research and Technology-aqua","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88656148","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

Molecular dynamic simulations of the desalination process through membrane technology: a review 膜技术海水淡化过程的分子动力学模拟研究进展

IF 4.3

Journal of Water Supply Research and Technology-aqua Pub Date : 2023-06-27 DOI: 10.2166/ws.2023.155

Megha Mohan, S. K. Pramada

引用次数: 1

Improving soil moisture content to increase strawberry growth indicators using the hydroponic method 利用水培法提高土壤含水量，提高草莓生长指标

IF 4.3

Journal of Water Supply Research and Technology-aqua Pub Date : 2023-06-27 DOI: 10.2166/ws.2023.158

Huijuan Cao, Yongguang Han, Jing Peng, Xiao-Xi Peng

{"title":"Improving soil moisture content to increase strawberry growth indicators using the hydroponic method","authors":"Huijuan Cao, Yongguang Han, Jing Peng, Xiao-Xi Peng","doi":"10.2166/ws.2023.158","DOIUrl":"https://doi.org/10.2166/ws.2023.158","url":null,"abstract":"\u0000 \u0000 Water and soil moisture management are very important factors in strawberry cultivation, and they directly affect strawberry growth and yield. Full moisture and suitable soil moisture can promote strawberry growth and grow faster and higher; proper soil moisture can maintain soil nutrients and prevent soil loss, thus maintaining soil fertility. In addition, adequate moisture and suitable soil moisture can make the strawberry grow more healthily, thus improving its quality and reducing the occurrence of hollow fruit. Therefore, in strawberry cultivation, reasonable water and soil moisture management is very important, growers need to carry out timely irrigation and drainage according to the growth of strawberry, to ensure the growth and yield of strawberry. Its disadvantages include the following: vulnerable to diseases and pests, high requirements for climatic conditions, high requirements for climatic conditions and high production costs. As a new agricultural technology, hydroponics can save land resources and reduce land pollution by cultivating plants in containers instead of planting plants on the land.","PeriodicalId":17553,"journal":{"name":"Journal of Water Supply Research and Technology-aqua","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84009978","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 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 采用层次分析法对水泥浆包覆球盖和泡沫盖及其组成对减少蒸发和选择最佳包覆层的影响进行了定量和定性研究

IF 4.3

Journal of Water Supply Research and Technology-aqua Pub Date : 2023-06-27 DOI: 10.2166/ws.2023.160

H. Karami, Alireza Sobhi, Ramezan Vaghei

{"title":"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","authors":"H. Karami, Alireza Sobhi, Ramezan Vaghei","doi":"10.2166/ws.2023.160","DOIUrl":"https://doi.org/10.2166/ws.2023.160","url":null,"abstract":"\u0000 \u0000 The present study sought to use a 20 mm thick foam coated with cement slurry and a blue ball with a diameter of 6 cm, as physical methods, in 50 and 80% surface covers, and their composite in 80% surface coverage in the Colorado pan. The water depth in the pans was measured for 1 month in the autumn season. Then, the pans' daily evaporation was calculated and compared with the amount of control evaporation. The results indicated that the combined method (plastic ball and foam) with 80% reduced the evaporation by about 68%, plastic ball with 80% (B80%) cover about 58%, foam with 80% coating about 53%, plastic ball with 50% coating about 34%, and finally 50% foam (F50%) by about 28%. Concerning the statistical analysis of this research, a significant correlation was observed between the control pan and average temperature, although there was no fixed and uniform relationship between the control pan and the maximum wind speed, air pressure, average relative humidity, and the number of sunshine hours. In this research, foam 50%, composite 80%, foam 80%, ball 80%, and ball 50% had better performance in terms of the best water quality based on the water electrical conductivity, respectively.","PeriodicalId":17553,"journal":{"name":"Journal of Water Supply Research and Technology-aqua","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73977614","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

Experimental investigation of gabion broad-crested weirs under upstream partial blockage conditions 上游部分堵塞条件下格宾网宽顶堰的试验研究

IF 4.3

Journal of Water Supply Research and Technology-aqua Pub Date : 2023-06-27 DOI: 10.2166/ws.2023.159

Sanaz Hasanian Shirvan, B. Pirzadeh, S. H. Rajaei, Mahmood Shafai Bejestan

{"title":"Experimental investigation of gabion broad-crested weirs under upstream partial blockage conditions","authors":"Sanaz Hasanian Shirvan, B. Pirzadeh, S. H. Rajaei, Mahmood Shafai Bejestan","doi":"10.2166/ws.2023.159","DOIUrl":"https://doi.org/10.2166/ws.2023.159","url":null,"abstract":"\u0000 The attention of researchers and engineers has been attracted to gabion weirs due to their environmental, hydraulic, and stability capabilities compared with solid weirs. One of the possible problems of the weirs is the partial blockage caused by sedimentation upstream of them. This research experiment investigates the hydraulic performance of gabion broad-crested weirs (GBCWs) with an upstream partial blockage. For this purpose, a total of 147 experiments were studied with different conditions for free-flow conditions. The weirs were tested with five partial blockage conditions between 0% and 100% of the weir height (0, 0.25P, 0.5P, 0.75P, and P). The results showed that increasing the partial blockage decreases the discharge coefficient. The changes in the discharge coefficients are minor for partial blockage less than 0.25P, and for partial blockage greater than 0.5P, the discharge coefficients are significantly reduced. As the partial blockage increases, the effect of filling-material size in gabion weirs decreases. Finally, a relationship was developed using the nonlinear regression analysis approach to estimate the discharge coefficient in the GBCWs with partial blockage.","PeriodicalId":17553,"journal":{"name":"Journal of Water Supply Research and Technology-aqua","volume":null,"pages":null},"PeriodicalIF":4.3,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88539817","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