scholarly journals Assessment of Relationship between Land uses of Riparian Zone and Water Quality of River for Sustainable Development of River Basin, A Case Study of U-Tapao River Basin, Thailand

2013 ◽  
Vol 17 ◽  
pp. 291-297 ◽  
Author(s):  
Saroj Gyawali ◽  
Kuaanan Techato ◽  
Chumpol Yuangyai ◽  
Charongpun Musikavong
Keyword(s):  
Water Quality ◽  
Sustainable Development ◽  
River Basin ◽  
Riparian Zone ◽  
Land Uses

scholarly journals Effects of Opened and Closed Spillway Operations of a Large Tropical Hydroelectric Dam on the Water Quality of the Downstream River

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Fiona-Annilow Wera ◽  
Teck-Yee Ling ◽  
Lee Nyanti ◽  
Siong-Fong Sim ◽  
Jongkar Grinang
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Aquatic Organisms ◽  
Quality Parameters ◽  
Regulated River ◽  
Land Uses ◽  
Hydroelectric Dam ◽  
Water Ph ◽  
The Impact

Water quality downstream of a hydroelectric dam is potentially affected by dam operations and other land uses in the river basin. Previous short-distance studies below the large Bakun Dam indicated poorer water quality during closed spillway. However, the extent of the impact is still unknown. Such knowledge is essential for mitigating the impact of the dam. Thus, the objectives of this study were to determine the water quality up to a distance of 210 km under two spillway operations, namely, closed and opened spillways, and also to determine the changes in water quality from the predam condition. Physicochemical parameters were measured at 15 stations along the Rajang River. Results of this preliminary study indicated that there were significant differences in eight out of nine water quality parameters between opened and closed spillway operations with opened spillway showing better water quality. During closed spillway, as we approached the dam, there was an increasing acidity and a decreasing oxygen content. Furthermore, as the water flows downstream, the unhealthy DO level (<5 mg/L) extended up to 165 km and the linear model showed an increasing DO rate of 0.09 mg/L per km. With opened spillway, DO decreased exponentially from 9.74 mg/L towards the downstream direction to 7.67 mg/L. The increasing turbidity and TSS in the downstream direction indicate contributions from erosion due to other land uses. The river is polluted with organics as indicated by COD of Class IV or V with sources from the dam and the activities in the river basin. Compared to the predam condition, the regulated river is less turbid but warmer and higher in ammonia. Closed spillway led to lower DO and acidic water. However, opened spillway water pH and DO were similar to those in the predam condition. Thus, it is recommended that DO be consistently high enough for the health of sensitive aquatic organisms downstream.

scholarly journals Characterization and assessment of water quality in mountainous sub-basins on the Manhuaçu River, MG

2021 ◽  
Vol 8 (4) ◽  
pp. 1621-1632
Author(s):  
RODOLFO Alves BARBOSA ◽  
Julieta Bramorski ◽  
Kelly Cristina Tonello ◽  
Alexandre Simões Lorenzon ◽  
João Batista Lúcio Corrêa ◽  
...  
Keyword(s):  
Water Quality ◽  
River Basin ◽  
Surface Waters ◽  
Riparian Zone ◽  
Coffee Plantations ◽  
Level Curves ◽  
Arc Gis ◽  
Water Courses ◽  
Gis Software

The objective of this chapter is to carry out an analysis of the water quality of six different sites in the Manhuaçu River basin and to propose measures for the saved sites. Changes in land cover occur and can cause degradation of the landscape. Hydrographic data selected by IBGE and IEDE level curves on a scale of 1: 50,000 were used and performed on MDEHC using Arc GIS software. Six different locations were collected in the field in the Manhuaçu River basin in February 2019. The records provided by SAAE Manhuaçu were also used. How the analyzes were evaluated and using a Water Quality Index (IQA) for the saved locations. As sub-basins Córrego Bom Jesus, Rio Manhuaçu and Rio São Luis lowered low values of dissolved oxygen with values of 0.0; 2.3 and 2.5 mg l-1, respectively. Córrego Bom Jesus had the lowest IQA value, followed by Rio Manhuaçu and Rio São Luis with values of 36.69; 44.92 and 47.84 values considered ruins. High levels of pesticides were not detected in surface waters. The product of coffee plantations close to water courses and a potential contamination by pesticides are of concern, and it is necessary to increase a protected area in the riparian zone.

The Planning of Urban Waterfront Space Based on Waterway Governance — A Case Study of Nanfei River Waterway in Anhui Province

2012 ◽  
Vol 518-523 ◽  
pp. 5894-5900
Author(s):  
Yi Fan Yu ◽  
Sha Huang
Keyword(s):  
Water Quality ◽  
Sustainable Development ◽  
Urban Environment ◽  
Ecological Restoration ◽  
Anhui Province ◽  
Functional Transformation ◽  
Meeting Point ◽  
Urban Waterfront

In recent years, waterway governance has become an opportunity for a new round of reform to urban waterfront space. In the new historical conditions, affected by the requirements of ecological restoration of waterways and urban waterfront landscape, the improvement of the water quality, the functional transformation of waterfront space and comprehensive improvement in the shoreline environment are hold together by the guide of principles of sustainable development. Based on waterway governance, the urban waterfront space is becoming into the important meeting point of the improvement of urban environment, space and the quality of the culture. In this paper, the planning of urban waterfront based on Anhui Nanfei River waterway governance is discussed.

scholarly journals Analysis and Model of River Basin Sustainable Management by SWOT and AHP Methods

Water ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2427
Author(s):  
Tomáš Bakalár ◽  
Henrieta Pavolová ◽  
Alexander Tokarčík
Keyword(s):  
Water Quality ◽  
Sustainable Development ◽  
Surface Water ◽  
River Basin ◽  
Sustainable Management ◽  
Swot Analysis ◽  
Surface Water Quality ◽  
Primary Objective ◽  
Clear Identification

The sustainable management of river basins is a comprehensive problem involving not only environmental quality but also socio-economic aspects. The primary objective of the study is to propose a sustainable management model of a river basin based on a clear identification of the good water quality in the river basin applicable for any river basin. The proposal is based on a monitoring of the quality of surface water in the basin, a quantitative and qualitative analysis of pollution, a questionnaire survey on the sewer systems and wastewater treatment in the basin and the diffuse sources of water pollution. For a better outline, a case study of Hornád river basin, Slovakia, was carried out. Two methodologies were applied: SWOT analysis for identification of indicators and the priorities and AHP analysis for a prioritization of the decisions. These analyses can be carried out for any activity based on identification of indicators and the priorities of the defined indicators to promote sustainable development. Based on the findings and the results of the analyses the model for managing the development of surface water quality in the basin was proposed. Generally applicable principles of sustainable development, accepting legislation in the field of water management, considering the quality of surface water in the basin, the impacts of wastewater discharges into the recipient, the identification and evaluation of positive and negative aspects of surface water quality, and the implementation of the proposed measures and post-implementation monitoring of qualitative development were covered in and by the proposed model.

scholarly journals Assessment and distribution of water quality of Pandoh river basin (PRB), Himachal Pradesh, North India

2021 ◽  
Vol 11 (8) ◽  
Author(s):  
C. Prakasam ◽  
R. Saravanan ◽  
M. K. Sharma ◽  
Varinder S. Kanwar
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
River Basin ◽  
Geographical Information ◽  
North India ◽  
Total Hardness ◽  
Drainage Pattern ◽  
Study Region ◽  
Northern India

AbstractAs the surface water in northern India is the main water resource for regional economic and also supply for drinking and irrigation purposes. However, deficiency of water quality leads to serious water pollution in the Pandoh river basin (PRB). Therefore, the main objective of the present study is to evaluate the quality of surface water. With this objective, surface water samples were collected from the PRB of northern India, and analyzed for pH, EC, turbidity, alkalinity, total dissolved solids, and total hardness. Moreover, geographical information system (GIS) tools were used to prepare the geology, drainage pattern, and location maps of the study region. Surface water quality observed from the PRB has an alkaline nature with a moderately hard type. Further studies are encouraged to better understand the water quality in northern India.

Water quality of reclaimed water from treated urban wastewater in Chaobai River Basin, North China

2014 ◽  
Vol 12 (2) ◽  
pp. 103-109 ◽  
Author(s):  
Yilei Yu ◽  
Xianfang Song ◽  
Yinghua Zhang ◽  
Fandong Zheng ◽  
Licai Liu
Keyword(s):  
Water Quality ◽  
River Basin ◽  
North China ◽  
Reclaimed Water ◽  
Urban Wastewater
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