首页 > 最新文献

水资源与保护(英文)最新文献

英文 中文
A Novel Method to Improve Quality of Drinking Water, Based on the Eye’s Biology 基于眼睛生物学改善饮用水质量的新方法
Pub Date : 2022-01-01 DOI: 10.4236/jwarp.2022.144016
A. Herrera, M. Esparza, M. P. S. Arias
Water represents a critical nutrient, the absence of which will be lethal within days. Water’s importance for the prevention of nutrition-related noncommu-nicable diseases has received more attention recently. There are major gaps in knowledge related to the measurement of total fluid intake and hydration status at the population level. It is poorly understood the effects of chronic mild dehydration and fluid consumption on specific health outcomes including obesity. Urolithiasis is the only disorder that has been consistently associ-ated with chronic low daily water intake. Water is an essential nutrient required for life, but until now, it was considered mainly as a universal solvent, which served to prepare the broth of life inside the cells, but the function of water now takes unusual importance with our discovery of the unsuspected ability of the human body to transform the power of light into chemical energy by dissociating the molecule from water, as it happens in plants. The process that we replicated in the laboratory for the first time in 2007, represents a light at the end of the tunnel, in the growing and serious problem of contamination of the mysterious and vital liquid that we call water.
水是一种重要的营养物质,缺乏水几天内就会致命。水对预防与营养有关的非传染性疾病的重要性最近受到越来越多的关注。在人口水平上,在测量总液体摄入量和水合状态方面存在重大知识空白。慢性轻度脱水和液体消耗对包括肥胖在内的特定健康结果的影响尚不清楚。尿石症是唯一一种与长期低每日饮水量有关的疾病。水是生命必需的营养物质,但到目前为止,它主要被认为是一种通用的溶剂,用于在细胞内准备生命的肉汤,但随着我们发现人体通过将分子与水分离将光能转化为化学能的能力,水的功能现在变得异常重要,就像在植物中发生的那样。2007年,我们首次在实验室中复制了这个过程,它代表了隧道尽头的曙光,解决了我们称之为水的神秘而重要的液体日益严重的污染问题。
{"title":"A Novel Method to Improve Quality of Drinking Water, Based on the Eye’s Biology","authors":"A. Herrera, M. Esparza, M. P. S. Arias","doi":"10.4236/jwarp.2022.144016","DOIUrl":"https://doi.org/10.4236/jwarp.2022.144016","url":null,"abstract":"Water represents a critical nutrient, the absence of which will be lethal within days. Water’s importance for the prevention of nutrition-related noncommu-nicable diseases has received more attention recently. There are major gaps in knowledge related to the measurement of total fluid intake and hydration status at the population level. It is poorly understood the effects of chronic mild dehydration and fluid consumption on specific health outcomes including obesity. Urolithiasis is the only disorder that has been consistently associ-ated with chronic low daily water intake. Water is an essential nutrient required for life, but until now, it was considered mainly as a universal solvent, which served to prepare the broth of life inside the cells, but the function of water now takes unusual importance with our discovery of the unsuspected ability of the human body to transform the power of light into chemical energy by dissociating the molecule from water, as it happens in plants. The process that we replicated in the laboratory for the first time in 2007, represents a light at the end of the tunnel, in the growing and serious problem of contamination of the mysterious and vital liquid that we call water.","PeriodicalId":56705,"journal":{"name":"水资源与保护(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70491077","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
Analysis of Hydrological Characteristics: A Case Review of the Niger Delta 水文特征分析:以尼日尔三角洲为例
Pub Date : 2022-01-01 DOI: 10.4236/jwarp.2022.149032
T. Abam, D. M. Fubara
{"title":"Analysis of Hydrological Characteristics: A Case Review of the Niger Delta","authors":"T. Abam, D. M. Fubara","doi":"10.4236/jwarp.2022.149032","DOIUrl":"https://doi.org/10.4236/jwarp.2022.149032","url":null,"abstract":"","PeriodicalId":56705,"journal":{"name":"水资源与保护(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70491600","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
Spatio-Temporal Patterns of Nitrogen and Phosphorus Stoichiometry in Cascade Ponds in an Agricultural Small Watershed and Their Influencing Factors 某农业小流域梯级池塘氮磷化学计量时空格局及其影响因素
Pub Date : 2022-01-01 DOI: 10.4236/jwarp.2022.1412042
Jiaogen Zhou
{"title":"Spatio-Temporal Patterns of Nitrogen and Phosphorus Stoichiometry in Cascade Ponds in an Agricultural Small Watershed and Their Influencing Factors","authors":"Jiaogen Zhou","doi":"10.4236/jwarp.2022.1412042","DOIUrl":"https://doi.org/10.4236/jwarp.2022.1412042","url":null,"abstract":"","PeriodicalId":56705,"journal":{"name":"水资源与保护(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70490691","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
Sludge Pollution Control from Crude Oil Tank Cleaning 原油舱清洗过程中污泥污染控制
Pub Date : 2022-01-01 DOI: 10.4236/jwarp.2022.149033
Christopher Adigwe, I. Nwaogazie, E. Ugwoha, A. David, N. G. Elemuo
{"title":"Sludge Pollution Control from Crude Oil Tank Cleaning","authors":"Christopher Adigwe, I. Nwaogazie, E. Ugwoha, A. David, N. G. Elemuo","doi":"10.4236/jwarp.2022.149033","DOIUrl":"https://doi.org/10.4236/jwarp.2022.149033","url":null,"abstract":"","PeriodicalId":56705,"journal":{"name":"水资源与保护(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70491136","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
An Assessment of Water Quality Parameters at the Cerrillos Reservoir, Ponce, Puerto Rico in the Aftermath of Hurricane Maria 飓风玛丽亚过后,波多黎各庞塞塞里洛斯水库水质参数评估
Pub Date : 2022-01-01 DOI: 10.4236/jwarp.2022.141003
Yashira Marie Sánchez-Colón, Javier Alejandro Chévere-Del Río, Nichole Marie Sánchez-Guzmán, F. Schaffner
{"title":"An Assessment of Water Quality Parameters at the Cerrillos Reservoir, Ponce, Puerto Rico in the Aftermath of Hurricane Maria","authors":"Yashira Marie Sánchez-Colón, Javier Alejandro Chévere-Del Río, Nichole Marie Sánchez-Guzmán, F. Schaffner","doi":"10.4236/jwarp.2022.141003","DOIUrl":"https://doi.org/10.4236/jwarp.2022.141003","url":null,"abstract":"","PeriodicalId":56705,"journal":{"name":"水资源与保护(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70490970","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
Methylene Blue Adsorption by Plasma Re-Activated Carbon 等离子体再生活性炭吸附亚甲基蓝的研究
Pub Date : 2021-10-13 DOI: 10.4236/jwarp.2021.1310041
Madeline A. Mackinder, Keliang Wang, Qinbai Fan
The effects of O2 plasma treatment on the adsorption capacity of activated carbon (AC) were investigated by varying the plasma treatment times. The surface properties of the AC were characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and Zeta potential. The carbon was then applied to remove methylene blue (MB). The adsorption kinetics and isotherm were also studied. Results showed that pseudo-second-order kinetics was the most suitable model for describing the adsorption of MB onto AC. Equilibrium data were well fitted to the Freundlich isotherm model. The highest adsorption capacity resulted from 4 minutes of O2 plasma treatment. The 4-minute plasma treated AC had the best adsorption capacity for MB at 0.467 mg/mg. This work shows that activation of AC by plasma can open the micropore and increase the effectiveness of chemical removal.
通过改变等离子体处理时间,研究了O2等离子体处理对活性炭吸附容量的影响。通过透射电子显微镜(TEM)、X射线光电子能谱(XPS)和Zeta电位对AC的表面性质进行了表征。然后施加碳以去除亚甲基蓝(MB)。并对吸附动力学和等温线进行了研究。结果表明,拟二阶动力学模型最适合描述MB在AC上的吸附。平衡数据与Freundlich等温线模型拟合良好。O2等离子体处理4分钟的吸附能力最高。4分钟等离子体处理的AC对MB的吸附能力最好,为0.467mg/mg。这项工作表明,等离子体活化AC可以打开微孔,提高化学去除的效果。
{"title":"Methylene Blue Adsorption by Plasma Re-Activated Carbon","authors":"Madeline A. Mackinder, Keliang Wang, Qinbai Fan","doi":"10.4236/jwarp.2021.1310041","DOIUrl":"https://doi.org/10.4236/jwarp.2021.1310041","url":null,"abstract":"The effects of O2 plasma treatment on the adsorption capacity of activated carbon (AC) were investigated by varying the plasma treatment times. The surface properties of the AC were characterized by transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and Zeta potential. The carbon was then applied to remove methylene blue (MB). The adsorption kinetics and isotherm were also studied. Results showed that pseudo-second-order kinetics was the most suitable model for describing the adsorption of MB onto AC. Equilibrium data were well fitted to the Freundlich isotherm model. The highest adsorption capacity resulted from 4 minutes of O2 plasma treatment. The 4-minute plasma treated AC had the best adsorption capacity for MB at 0.467 mg/mg. This work shows that activation of AC by plasma can open the micropore and increase the effectiveness of chemical removal.","PeriodicalId":56705,"journal":{"name":"水资源与保护(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41880568","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
Alternative Sanitation and Strategic Directives for the Well Water Security in Cotonou (Benin) and Lomé (Togo) 科托努(贝宁)和洛姆洛伊(多哥)井水安全的替代卫生和战略指令
Pub Date : 2021-09-07 DOI: 10.4236/jwarp.2021.139036
Henri S. Totin Vodounon, E. M. Azalou-Tingbe, K. Z. Houédakor, E. Amoussou, M. Nantob, Gloria A. Adoho, L. Odoulami
In the coastal cities of West Africa, land use change, rapid population growth, bad sanitation systems and poor environmental governance degrade the quality of groundwater. This study aimed to assess alternative, acceptable, affordable sanitation disposal and practices for groundwater quality rehabilitation in the cities of Cotonou and Lome. The study was based on the participatory transdisciplinary approach, field surveys, feedback from interactions with stakeholders, experiences of the practitioners and institutional consultations. This multi-stakeholder approach helped to appreciate ecological aspects of sanitation disposal and its implications on water quality improvement. SWOT model was used to analyze the relevance of assessed ecological system. Well water quality is deteriorated by traditional waste management disposal. Ecological sanitation systems are septic tanks on polyethylene, above-ground latrines and phytoremediation technique in the swamp areas. Collected wastes are used for composting and biogas production. Based on the optimist scenario at 2030 horizon, kind success factors of groundwater security are participation of citizens, existence of sanitation market, valorization of the waste by category, low-cost disposal adaptable to the individual, household and neighborhood’s scales. The strategic directions rely on funding and public policies for WASH, ecological sanitation disposal, cultural environment and good sanitation practices for emergence of new sanitation system to secure and sustain well water quality. But the social acceptability of ecological disposal is limited by the society’s multicultural heritage. These findings could help in decision-making concerning urban groundwater quality protection in the African coastal cities.
在西非沿海城市,土地利用的变化、人口的快速增长、糟糕的卫生系统和糟糕的环境治理降低了地下水的质量。这项研究旨在评估科托努和洛美市可接受、负担得起的替代性卫生处理和地下水质量恢复做法。该研究基于参与式跨学科方法、实地调查、与利益攸关方互动的反馈、从业人员的经验和机构协商。这种多方利益攸关方的做法有助于了解环境卫生处理的生态方面及其对改善水质的影响。运用SWOT模型分析了评价生态系统的相关性。传统的废物管理处理使井水水质恶化。生态卫生系统包括聚乙烯化粪池、地上厕所和沼泽地区的植物修复技术。收集的废物用于堆肥和沼气生产。基于2030年前景的乐观主义情景,地下水安全的成功因素是公民的参与、卫生市场的存在、废物的分类定价、适合个人、家庭和社区规模的低成本处置。战略方向依赖于讲卫生运动、生态卫生处理、文化环境和良好卫生做法的资金和公共政策,以建立新的卫生系统,确保和维持良好的水质。但生态处置的社会可接受性受到社会多元文化遗产的限制。这些发现有助于非洲沿海城市的城市地下水质量保护决策。
{"title":"Alternative Sanitation and Strategic Directives for the Well Water Security in Cotonou (Benin) and Lomé (Togo)","authors":"Henri S. Totin Vodounon, E. M. Azalou-Tingbe, K. Z. Houédakor, E. Amoussou, M. Nantob, Gloria A. Adoho, L. Odoulami","doi":"10.4236/jwarp.2021.139036","DOIUrl":"https://doi.org/10.4236/jwarp.2021.139036","url":null,"abstract":"In the coastal cities of West Africa, land use change, rapid population growth, bad sanitation systems and poor environmental governance degrade the quality of groundwater. This study aimed to assess alternative, acceptable, affordable sanitation disposal and practices for groundwater quality rehabilitation in the cities of Cotonou and Lome. The study was based on the participatory transdisciplinary approach, field surveys, feedback from interactions with stakeholders, experiences of the practitioners and institutional consultations. This multi-stakeholder approach helped to appreciate ecological aspects of sanitation disposal and its implications on water quality improvement. SWOT model was used to analyze the relevance of assessed ecological system. Well water quality is deteriorated by traditional waste management disposal. Ecological sanitation systems are septic tanks on polyethylene, above-ground latrines and phytoremediation technique in the swamp areas. Collected wastes are used for composting and biogas production. Based on the optimist scenario at 2030 horizon, kind success factors of groundwater security are participation of citizens, existence of sanitation market, valorization of the waste by category, low-cost disposal adaptable to the individual, household and neighborhood’s scales. The strategic directions rely on funding and public policies for WASH, ecological sanitation disposal, cultural environment and good sanitation practices for emergence of new sanitation system to secure and sustain well water quality. But the social acceptability of ecological disposal is limited by the society’s multicultural heritage. These findings could help in decision-making concerning urban groundwater quality protection in the African coastal cities.","PeriodicalId":56705,"journal":{"name":"水资源与保护(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48993850","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
Impact of Climate Variability on Water Resources: The Case of Marc Delorme-Cnra Station, Southeast of Ivory Coast 气候变率对水资源的影响:以象牙海岸东南部Marc Delorme-Cnra站为例
Pub Date : 2021-09-07 DOI: 10.4236/jwarp.2021.139038
Charly Fernand Agoh, T. T. Lekadou, Mahaman Bachir Saley, Bi Trazié Jérémie Gala, J. Danumah, Pierre-Marie Janvier Coffi, Z. Koffi, B. Goula
This study aims to characterize the climatic variability in the South-East of Ivory Coast and to show its impact on the supply of water resources. To do this, statistical and hydrological methods were applied to climatic data collected at the Marc DELORME Research Station of the CNRA. The statistical trend tests on this data revealed a significant decrease in precipitation and an increase in temperature, insolation and evaporation. Statistical break methods indicate a rainfall break in 1982 which marks a modification of the rainfall regime thus translating a drop in rainfall of 15%, a recession in the frequency of rainy days in general and in particular in rainfall heights between 10 and 30 mm and greater than 50 mm. This break is accompanied by a shortening of the rainy seasons, with average rainfall durations ranging from 54 days (short rainy season) to 104 days (great rainy season). Despite the disturbances in the different seasons of the year, the monthly rainfall regimes in the area have not changed. The assessment of the effects of drought on water resources using the Standardized Precipitation and Evapotranspiration Index (SPEI) for three-time scales (1 month, 3 months and 12 months) indicates a severe drought ranging from 3% to 7% over the period 1961 to 2018. However, despite the presence of this severe drought, the intensity of the drought was found to be moderate on all time scales. The Thorrnthwaite method was used to highlight the impacts of this climatic variability on the region’s water resources. The average annual recharge estimated at 402 mm, has been reduced to 153 mm during a deficit period, a decrease of about 62%. The average annual runoff, which was 294 mm, fells to 257 mm, a decrease of about 13%. This recorded decrease in the water infiltrated after the rainfall break (1983-2018), explains the heterogeneous decrease in the depth of the water table.
本研究旨在描述科特迪瓦东南部的气候变化,并显示其对水资源供应的影响。为此,将统计和水文方法应用于CNRA Marc DELORME研究站收集的气候数据。对这些数据的统计趋势测试显示,降水量显著减少,温度、日照和蒸发量增加。统计中断方法表明,1982年的降雨中断标志着降雨制度的改变,从而导致降雨量下降15%,降雨日频率普遍下降,尤其是降雨量高度在10至30毫米至50毫米之间,平均降雨持续时间为54天(短雨季)至104天(大雨季)。尽管一年中的不同季节都有扰动,但该地区的月降雨量没有变化。使用三个时间尺度(1个月、3个月和12个月)的标准化降水和蒸发蒸腾指数(SPEI)评估干旱对水资源的影响表明,1961年至2018年期间发生了3%至7%的严重干旱。然而,尽管存在这种严重的干旱,但干旱的强度在所有时间尺度上都是中等的。Thornthwaite方法用于强调这种气候变化对该地区水资源的影响。估计年平均补给量为402毫米,在赤字期间已减少到153毫米,减少了约62%。年平均径流量为294毫米,下降到257毫米,下降了约13%。降雨中断后(1983-2018年)渗透的水量减少,这一记录解释了地下水位深度的非均匀性下降。
{"title":"Impact of Climate Variability on Water Resources: The Case of Marc Delorme-Cnra Station, Southeast of Ivory Coast","authors":"Charly Fernand Agoh, T. T. Lekadou, Mahaman Bachir Saley, Bi Trazié Jérémie Gala, J. Danumah, Pierre-Marie Janvier Coffi, Z. Koffi, B. Goula","doi":"10.4236/jwarp.2021.139038","DOIUrl":"https://doi.org/10.4236/jwarp.2021.139038","url":null,"abstract":"This study aims to characterize the climatic variability in the South-East of Ivory Coast and to show its impact on the supply of water resources. To do this, statistical and hydrological methods were applied to climatic data collected at the Marc DELORME Research Station of the CNRA. The statistical trend tests on this data revealed a significant decrease in precipitation and an increase in temperature, insolation and evaporation. Statistical break methods indicate a rainfall break in 1982 which marks a modification of the rainfall regime thus translating a drop in rainfall of 15%, a recession in the frequency of rainy days in general and in particular in rainfall heights between 10 and 30 mm and greater than 50 mm. This break is accompanied by a shortening of the rainy seasons, with average rainfall durations ranging from 54 days (short rainy season) to 104 days (great rainy season). Despite the disturbances in the different seasons of the year, the monthly rainfall regimes in the area have not changed. The assessment of the effects of drought on water resources using the Standardized Precipitation and Evapotranspiration Index (SPEI) for three-time scales (1 month, 3 months and 12 months) indicates a severe drought ranging from 3% to 7% over the period 1961 to 2018. However, despite the presence of this severe drought, the intensity of the drought was found to be moderate on all time scales. The Thorrnthwaite method was used to highlight the impacts of this climatic variability on the region’s water resources. The average annual recharge estimated at 402 mm, has been reduced to 153 mm during a deficit period, a decrease of about 62%. The average annual runoff, which was 294 mm, fells to 257 mm, a decrease of about 13%. This recorded decrease in the water infiltrated after the rainfall break (1983-2018), explains the heterogeneous decrease in the depth of the water table.","PeriodicalId":56705,"journal":{"name":"水资源与保护(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45511874","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
Spatio-Temporal Variation of Atmospheric Nutrient Deposition in Different Land Uses/Covers around Lake Kivu 基伍湖周围不同土地利用/覆盖的大气养分沉积时空变化
Pub Date : 2021-09-07 DOI: 10.4236/jwarp.2021.139037
M. Bagalwa, J. Majaliwa, H. Bootsma, K. Karume, S. Akello, F. Kansiime
Atmospheric deposition of nutrients, particularly nitrogen and phosphorus has the capacity to significantly affect the productivity and biogeochemistry of aquatic ecosystems. The objective of this study was to assess the impact of land use/cover types on the atmospheric deposition of nutrients around Lake Kivu. Dry and wet atmospheric deposition samples were collected from four different land use/cover types (forest, wetland, agricultural and urbanized area) at four stations (Goma, Lwiro, Bukavu and Iko) around the Lake Kivu basin. The highest annual loading of dry total phosphorus (TP) was recorded at a station located in an urban area at Goma (4.4 ± 3.9 μmol/m2/yr) and the highest dry deposition of total nitrogen (TN) was recorded at Iko (84.5 ± 41.2 μmol/m2/yr). High wet TP and TN were at Bukavu (0.7 ± 1.1 μmol/m2/yr) and Iko (21.7 ± 34.7 μmol/m2/yr) respectively. High dry TP loads were recorded in the forest area of Goma and the highest dry TN at Lwiro. High wet TP loads were record in agriculture at Goma and high values of wet TN in agriculture at Iko. Phosphorus and nitrogen deposition rates around Lake Kivu were similar to those reported for other African lakes. The highest rate of TP was recorded mainly in the forest area for dry deposition while high TN was recorded in all types of land use/cover in the basin. This study found out that forest traps high concentration of nutrient than other land uses/covers.
大气中营养物质,特别是氮和磷的沉积有能力显著影响水生生态系统的生产力和生物地球化学。本研究的目的是评估土地利用/覆盖类型对基伍湖周围营养物质大气沉积的影响。在基伍湖流域周围的四个站点(戈马、勒维罗、布卡武和伊科),从四种不同的土地利用/覆盖类型(森林、湿地、农业和城市化地区)收集了干湿大气沉积样本。戈马城市地区的一个站点记录的干总磷(TP)年负荷最高(4.4±3.9μmol/m2/yr),总氮(TN)的干沉降最高(84.5±41.2μmol/m2/yr)。高湿TP和TN分别位于布卡武(0.7±1.1μmol/m2/yr)和伊科(21.7±34.7μmol/m2/yr)。戈马林区的TP干负荷较高,Lwiro的TN干负荷最高。戈马农业的湿TP负荷较高,伊科农业的湿TN值较高。基伍湖周围的磷和氮沉积速率与其他非洲湖泊的报告相似。TP的最高速率主要记录在干沉降的森林区域,而TN的高速率记录在盆地的所有类型的土地利用/覆盖中。这项研究发现,森林比其他土地利用/覆盖物更能捕获高浓度的养分。
{"title":"Spatio-Temporal Variation of Atmospheric Nutrient Deposition in Different Land Uses/Covers around Lake Kivu","authors":"M. Bagalwa, J. Majaliwa, H. Bootsma, K. Karume, S. Akello, F. Kansiime","doi":"10.4236/jwarp.2021.139037","DOIUrl":"https://doi.org/10.4236/jwarp.2021.139037","url":null,"abstract":"Atmospheric deposition of nutrients, particularly nitrogen and phosphorus has the capacity to significantly affect the productivity and biogeochemistry of aquatic ecosystems. The objective of this study was to assess the impact of land use/cover types on the atmospheric deposition of nutrients around Lake Kivu. Dry and wet atmospheric deposition samples were collected from four different land use/cover types (forest, wetland, agricultural and urbanized area) at four stations (Goma, Lwiro, Bukavu and Iko) around the Lake Kivu basin. The highest annual loading of dry total phosphorus (TP) was recorded at a station located in an urban area at Goma (4.4 ± 3.9 μmol/m2/yr) and the highest dry deposition of total nitrogen (TN) was recorded at Iko (84.5 ± 41.2 μmol/m2/yr). High wet TP and TN were at Bukavu (0.7 ± 1.1 μmol/m2/yr) and Iko (21.7 ± 34.7 μmol/m2/yr) respectively. High dry TP loads were recorded in the forest area of Goma and the highest dry TN at Lwiro. High wet TP loads were record in agriculture at Goma and high values of wet TN in agriculture at Iko. Phosphorus and nitrogen deposition rates around Lake Kivu were similar to those reported for other African lakes. The highest rate of TP was recorded mainly in the forest area for dry deposition while high TN was recorded in all types of land use/cover in the basin. This study found out that forest traps high concentration of nutrient than other land uses/covers.","PeriodicalId":56705,"journal":{"name":"水资源与保护(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46751788","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
Microplastic in Commercial Fish in the Mediterranean Sea, the Red Sea and the Arabian Gulf. Part 1: The Mediterranean Sea 地中海、红海和阿拉伯湾商业鱼类中的微塑料。第一部分:地中海
Pub Date : 2021-07-27 DOI: 10.4236/jwarp.2021.138031
R. Habib, T. Thiemann
Microplastic has become a ubiquitous environmental pollutant. Microplastic in the oceans has detrimental effects on aquatic organisms. The presence of microplastic in marine fish heightens the chance of finding microplastic in seafood targeted for human consumption. The Mediterranean Sea is known to suffer from significant plastic pollution. It is also one of the most thoroughly studied water bodies in regard to microplastic contamination. The manuscript reviews the available literature of 2015-2021 on the presence of microplastic in commercially important fish species in the Mediterranean Sea. The literature data on microplastic content on beaches, in subtidal sediment, in the sediment from the ocean floor and in surface water of different regions of the Mediterranean Sea is reviewed, also.
微塑料已经成为一种无处不在的环境污染物。海洋中的微塑料对水生生物有有害影响。海洋鱼类中微塑料的存在增加了在人类食用的海产品中发现微塑料的可能性。众所周知,地中海受到严重的塑料污染。它也是在微塑料污染方面研究得最彻底的水体之一。该手稿回顾了2015-2021年关于地中海重要商业鱼类中存在微塑料的现有文献。综述了地中海不同地区海滩、潮下沉积物、海底沉积物和地表水中微塑料含量的文献资料。
{"title":"Microplastic in Commercial Fish in the Mediterranean Sea, the Red Sea and the Arabian Gulf. Part 1: The Mediterranean Sea","authors":"R. Habib, T. Thiemann","doi":"10.4236/jwarp.2021.138031","DOIUrl":"https://doi.org/10.4236/jwarp.2021.138031","url":null,"abstract":"Microplastic has become a ubiquitous environmental pollutant. Microplastic in the oceans has detrimental effects on aquatic organisms. The presence of microplastic in marine fish heightens the chance of finding microplastic in seafood targeted for human consumption. The Mediterranean Sea is known to suffer from significant plastic pollution. It is also one of the most thoroughly studied water bodies in regard to microplastic contamination. The manuscript reviews the available literature of 2015-2021 on the presence of microplastic in commercially important fish species in the Mediterranean Sea. The literature data on microplastic content on beaches, in subtidal sediment, in the sediment from the ocean floor and in surface water of different regions of the Mediterranean Sea is reviewed, also.","PeriodicalId":56705,"journal":{"name":"水资源与保护(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43343721","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: 14
期刊
水资源与保护(英文)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1