scholarly journals ESTUDO DA QUALIDADE DA ÁGUA DO CÓRREGO DA CASCATA E/OU TABUINHA DE PRESIDENTE PRUDENTE

2018 ◽  
Vol 10 (Especial) ◽  
pp. 191-196
Author(s):  
Carolina Gomes de Melo ◽  
Danielle Elis Garcia Furuya ◽  
Ireli Cristina Luz ◽  
Lucas Flávio Thomaz ◽  
Nayara de Jesus Figueiredo ◽  
...  

The conservation of the watercourses are essential because they enable the accomplishment of activities that need this natural resource and determine the characteristics of the microbasin in which they are inserted. Rapid population growth requires increased use of natural resources, such as water in streams. In addition to the use, incorrect treatment and environmental impacts are increasingly decreasing the water availability of rivers and tributaries in each river basin. The microcatchment of the Cascata stream and / or Tabuinha shows signs of environmental degradation, since the depth and quantity of water in the stream is scarce. In this context, the objective of this study was to analyze parameters that determine the water quality of the stream, as well as to analyze the interference of a tannery.

2021 ◽  
Vol 14 (2) ◽  
pp. 801
Author(s):  
Francisco Ivam Castro do Nascimento ◽  
Waldemir Lima dos Santos ◽  
Derlangela Lira da Silva ◽  
Rodrigo Otávio Peréa Serrano

A degradação ambiental de uma bacia hidrográfica pode ser resultado de uma série de ações geradas pela atividade antrópica, podendo ser analisadas de forma sistêmica através do diagnóstico físico conservacionista, para diagnosticar os impactos ambientais negativos e ajudar no planejamento ambiental das bacias hidrográficas. Neste trabalho foi aplicada a metodologia do Diagnóstico físico conservacionista (DFC) na bacia hidrográfica do Rio Judia, localizada em Rio Branco – Acre. Para isso, os parâmetros foram adaptados para a realidade local, sendo aplicados por meio de técnicas de geoprocessamento, a fim de identificar e quantificar o grau de degradação da bacia hidrográfica entre os anos de 2006 à 2019. Os resultados apontaram que, o médio curso obteve o maior grau de degradação, 23. O baixo curso obteve valor 22 e o auto curso valor 21. Todos os três cursos da bacia hidrográfica tiveram valores elevados de degradação, indicando que recursos naturais como solo, floresta e água encontram-se ameaçados por atividades antrópicas como: pecuária, uso indiscriminado da água e ocupações irregulares. Conclui-se que a metodologia do DFC possibilitou a correta identificação quanto ao grau de degradação da bacia do Rio Judia, apontando os parâmetros que mais contribuíram para o atual cenário ambiental. Physical Conservationist Diagnosis (PCD) as a methodology for quantifying environmental degradation in the Rio Judia river basin - Acre A B S T R A C TThe environmental degradation of a hydrographic basin can be the result of a series of actions generated by anthropic activity, which can be analyzed in a systemic way through the physical conservationist diagnosis, to diagnose the negative environmental impacts and help in the environmental planning of the hydrographic basins. In this work, the methodology of physical conservationist diagnosis (PCD) was applied in the Judia River basin, located in Rio Branco - Acre. For this, the parameters were adapted to the local reality, being applied through geoprocessing techniques, in order to identify and quantify the degree of degradation of the watershed between 2006 and 2019. The results showed that the mean course obtained the highest degree of degradation, 23. The low course obtained value 22 and the auto course value 21. All three courses of the watershed had high degradation values, indicating that natural resources such as soil, forest and water are threatened by anthropic activities such as livestock, indiscriminate use of water and irregular occupations. It was concluded that the PCD methodology allowed the correct identification of the degree of degradation of the Judia River basin, pointing out the parameters that most contributed to the current environmental scenario.Keywords: degree and degradation, environment, hydrographic Basin


2021 ◽  
Vol 11 (8) ◽  
Author(s):  
C. Prakasam ◽  
R. Saravanan ◽  
M. K. Sharma ◽  
Varinder S. Kanwar

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.


2003 ◽  
Vol 25 (3) ◽  
pp. 289-301 ◽  
Author(s):  
William S. Kern

In The Ultimate Resource (1981, 1996), and in many other publications over the last several decades, Julian Simon put forth controversial views regarding the connection between natural resource scarcity, population growth, and economic progress. Simon argued, in contrast to those espousing the limits to growth, that natural resources were not getting scarcer, but more abundant, and that a large and growing population was an asset rather than a liability in the pursuit of economic growth.


2014 ◽  
Vol 12 (2) ◽  
pp. 103-109 ◽  
Author(s):  
Yilei Yu ◽  
Xianfang Song ◽  
Yinghua Zhang ◽  
Fandong Zheng ◽  
Licai Liu

Author(s):  
Jose Simmonds ◽  
Juan A. Gómez ◽  
Agapito Ledezma

This article contains a multivariate analysis (MV), data mining (DM) techniques and water quality index (WQI) metrics which were applied to a water quality dataset from three water quality monitoring stations in the Petaquilla River Basin, Panama, to understand the environmental stress on the river and to assess the feasibility for drinking. Principal Components and Factor Analysis (PCA/FA), indicated that the factors which changed the quality of the water for the two seasons differed. During the low flow season, water quality showed to be influenced by turbidity (NTU) and total suspended solids (TSS). For the high flow season, main changes on water quality were characterized by an inverse relation of NTU and TSS with electrical conductivity (EC) and chlorides (Cl), followed by sources of agricultural pollution. To complement the MV analysis, DM techniques like cluster analysis (CA) and classification (CLA) was applied and to assess the quality of the water for drinking, a WQI.


2021 ◽  
Vol 261 ◽  
pp. 04023
Author(s):  
Xu He ◽  
Hou Siyan

The water quality of six important rivers in Haihe River Basin, including Yongding River, Luanhe River, North Canal, Daqing River, South Canal and Chaobai River, was evaluated. The influence of point source and non-point source on water quality was analyzed. The causes of water environmental pollution in the major rivers were preliminarily revealed. The results show that the water quality of Chaobai River is good, and the impact of point source and non-point source discharge on the water body is small. Other rivers are affected by different degrees of point source and non-point source pollution. Based on the analysis results, the engineering measures and management countermeasures for river regulation are put forward.


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