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Dong Fu, Yanchuan Gong, Chuntan Chen, Xiao Gui, Hepei Liu, Shu Chen, Juntao Ren and Bingjie Hou
Agricultural non-point source (ANPS) pollution has emerged as a significant factor influencing water quality within watersheds. Understanding the spatial distribution and composition of ANPS is crucial for effective river water quality management. Based ...
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Zhan Tan, Jiu Ren, Shaoda Li, Wei Li, Rui Zhang and Tiegang Sun
Remote sensing is widely used for lake-water-quality monitoring, but the inversion of the total nitrogen (TN) and total phosphorus (TP) of rivers and non-optical parameters is still a difficult problem. The use of high spatial and temporal resolution mul...
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Mitchell M. Brown, Justin T. Telfer, Gustavious P. Williams, A. Woodruff Miller, Robert B. Sowby, Riley C. Hales and Kaylee B. Tanner
Atmospheric deposition (AD) is a less understood and quantified source of nutrient loading to waterbodies. AD occurs via settling (large particulates), contact (smaller particulates and gaseous matter), and precipitation (rain, snow) transport pathways. ...
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Max-Frederik Piepel and Hans-Werner Olfs
Optimised use of liquid organic manures (LOM) can reduce the consumption of mineral fertilisers and help reduce the emission of nutrients into nonagricultural ecosystems. To achieve this, farmers need to be able to measure the greatly variable nutrient c...
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Seth Michael Barrus, Gustavious Paul Williams, A. Woodruff Miller, M. Brett Borup, LaVere B. Merritt, David C. Richards and Theron G. Miller
We describe modified sampling and analysis methods to quantify nutrient atmospheric deposition (AD) and estimate Utah Lake nutrient loading. We address criticisms of previous published collection methods, specifically collection table height, screened bu...
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Wei Shang, Shuanggen Jin, Yang He, Yuanyuan Zhang and Jian Li
Poyang Lake, Dongting Lake, and Taihu Lake are the largest freshwater lakes in the middle and lower reaches of the Yangtze River, China. In recent years, the eutrophication level of lakes has increased with the development of the social economy and cause...
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Mebrahtom G. Kebedew, Seifu A. Tilahun, Fasikaw A. Zimale and Tammo S. Steenhuis
Sediment concentration of rivers in developing countries has been increasing greatly over the last 50 years due to the conversion of forest to continuously cultivated land with the increasing population. Few studies have addressed its effect on sedimenta...
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Jiaming Liu, Yanjun Zhang, Di Yuan and Xingyuan Song
Measuring total nitrogen (TN) and total phosphorus (TP) is important in managing heavy polluted urban waters in China. This study uses high spatial resolution IKONOS imagery with four multispectral bands, which roughly correspond to Landsat/TM bands 1?4,...
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Taesoo Lee, Xiuying Wang, Michael White, Pushpa Tuppad, Raghavan Srinivasan, Balaji Narasimhan and Darrel Andrews
The Upper Trinity River Basin (TRB) is the most populated river basin and one of the largest water suppliers in Texas. However, sediment and nutrient loads are reducing the capacity of reservoirs and degrading water quality. The objectives of this study ...
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Xiuxia Ma, Wenfa Peng, Bingwei Tong, Taiyun Li, Le Wang, Bin Du and Chaochao Li
To comprehensively comprehend the spatiotemporal variations in pollution load within the Sixth Drainage Ditch of the Ningxia Yellow River Diversion Irrigation Area, we employed the LOADEST model. We utilized daily flow data and concentrations of ammonia ...
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Olivier Banton, Sylvie St-Pierre, Hélène Giot and Anaïs Giraud
Protecting the quality of coastal water bodies requires the assessment of contaminant discharge brought by rivers. Numerous methods have been proposed for calculating sediment and nutrient loads. The most widely used and generally recommended are the flo...
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Jiaming Liu, Yanjun Zhang, Di Yuan and Xingyuan Song
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Horacio E. Bown, Michael S. Watt, Peter W. Clinton, Euan G. Mason
Pág. 277 - 289
Patterns of carbon flux and partitioning were examined in highly stocked (40,000 stems ha-1) control and fertilized mini-plots of Pinus radiata D. Don at five sites, which covered a wide climatic and edaphic gradient on the South Island of New Zealand. T...
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Michal Marzec, Krzysztof Józwiakowski, Anna Debska, Magdalena Gizinska-Górna, Aneta Pytka-Woszczylo, Alina Kowalczyk-Jusko and Agnieszka Listosz
In this paper, the pollutant removal efficiency and the reliability of a vertical and horizontal flow hybrid constructed wetland (CW) planted with common reed, manna grass, and Virginia mallow were analyzed. The wastewater treatment plant, located in sou...
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Rosane Freire, Cássia Maria Bonifácio, Fabrício Hernandes de Freitas, Roselene Maria Schneider, Célia Regina Granhen Tavares
Pág. 711 - 716
This paper aimed to monitor the nitrogen compounds and total phosphorous in the Maringá Stream watershed in order to investigate the spatial and temporal variations in the water quality. For this, samplings were collected from seven sites during the peri...
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Ruiyun Yao, Ru Bai, Qingfan Yu, Yaqi Bao and Weiwei Yang
In this study, we investigated the effect of partially substituting inorganic nitrogen with bio-organic fertiliser on the ?Tianhong2? Fuji apple planting in Xinjiang. Bio-organic fertiliser was applied, and nitrogen was reduced by 20% (T2), 40% (T3), and...
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Xuanshuo Shi, Zhongfeng Qiu, Yunjian Hu, Dongzhi Zhao, Aibo Zhao, Hui Lin, Yating Zhan, Yu Wang and Yuanzhi Zhang
Remote sensing technology plays a crucial role in the rapid and wide-scale monitoring of water quality, which is of great significance for water pollution prevention and control. In this study, the downstream and nearshore areas of the Huaihe River Basin...
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Iwona Golas, Mariusz Szmyt, Jacek Potorski, Michal Lopata, Anna Gotkowska-Plachta and Katarzyna Glinska-Lewczuk
Pseudomonas fluorescens and Aeromonas hydrophila bacteria are opportunistic pathogens that occur naturally in the aquatic environment and in the gut flora of healthy fish. Both species can pose a serious threat for fish that are highly sensitive to water...
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Amei Deng, Changdong Ye and Wenzhi Liu
Due to the acceleration of industrialization and urbanization in recent decades, the majority of coastal rivers and estuaries in China have been moderately or severely contaminated by a variety of pollutants. We investigated the spatial and seasonal vari...
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Yuhua Wang, Qi Zhang, Jianjuan Li, Shaoxiong Lin, Xiaoli Jia, Qingxu Zhang, Jianghua Ye, Haibin Wang and Zeyan Wu
In order to fully comprehend the impact of soil acidification on the quality of tea, further analyses are essential and are of the utmost importance to the cultivation of tea trees and the simultaneous enhancement of tea quality. In May 2022, Tieguanyin ...
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