Water Quality in Inland Water Bodies: Hostage to the Intensification of Anthropogenic Land Uses

Kondraju, Tarun Teja; Rajan, K. S.

doi:10.1007/s12524-019-01033-2

Cited by 7 publications

(2 citation statements)

References 25 publications

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“…Freshwater resources are the lifeline for human civilizations across the globe, but several regions are facing severe water shortages due to shrinking water resources (T. Kondraju and Rajan 2019). There are several reasons for the reduction in available water resources.…”

Section: Introductionmentioning

confidence: 99%

“…There are several reasons for the reduction in available water resources. Water quality degradation due to excessive contamination is one of the significant factors among them (Kondraju and Rajan 2019). Several studies have observed a severe decline in the water quality of several inland water bodies due to contamination, predominantly due to algal blooms caused by excessive nutrient contamination and if these contamination conditions are sustained for a longer duration, it will lead to water scarcity and distress (Rouse, Bishop, and Struger 1999;Smith, Tilman, and Nekola 1999;Arheimer and Lidén 2000;Rabalais 2002;Rosegrant, Cai, and Cline 2002;Pretty et al 2003;Smith 2003;Jin, Xu, and Huang 2005;Kronvang et al 2005;Peters, Meybeck, and Chapman 2005;Sullivan, Agardy, and Clark 2005;Camargo and Alonso 2006;Rijsberman 2006;Qin et al 2007;Blankenberg, Haarstad, and Søvik 2008;Brockmann et al 2008;Moss 2008;Ribbe et al 2008;Zeliger 2008;Istvánovics 2009;Smith and Schindler 2009;Chhabra, Manjunath, and Panigrahy 2010;Dodds andWhiles 2010b, 2010a;Le et al 2010;Schwarzenbach et al 2010;Azizullah et al 2011;Zhang et al 2011;OECD 2012;Sharma and Gulati 2014;Tarazona 2014;Arto, Andreoni, and Rueda-Cantuche 2016;Bhateria and Jain 2016;Glibert 2017;Sharma, Yadav, and Gupta 2017;…”

Section: Introductionmentioning

confidence: 99%

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Studying The Impact of Precipitation On Nutrient Loading into The Nagarjuna Sagar Reservoir from Contributing Watershed Using the SWAT model

Kondraju,

Sundara

2024

Preprint

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In recent decades, the increasing nutrient contamination in several water bodies across the globe has made it necessary to revisit, study, and understand all the mechanisms that contribute to the increasing contamination levels to protect the water bodies. Precipitation-induced surface runoff could be one of the significant contributors to controlling water quality in inland water bodies by regulating nutrient movement across the contributing watersheds where the land use is mainly driven by precipitation, such as the tropical monsoon climates of Southeast Asia. Current literature does not provide sufficient information to understand the role of precipitation in controlling the water quality under these conditions. Hence, the interactions between precipitation and nutrient transport need to be studied to mitigate the ill effects of the contamination. As a case study, this work used the Soil and Water Assessment Tool (SWAT) hydrological model to assess these interactions in Nagarjuna Sagar (NS) and the contributing watersheds from the Krishna River basin. The model was calibrated for the entire Krishna River basin using the flow and in-stream nitrate concentration values measured at the Wadenapally gauge station. The model was used to study the contaminants produced from the NS contributing watershed from 2007 to 2017, during which the basin recorded flood and drought conditions. Since Total Nitrogen (TN) influences the nitrate concentration in streams, TN production was used as a reference for contamination output from the contributing watershed. The results showed that the land use in 2013 and 2017 had similar land use conditions and statistics, but the contribution watershed saw higher production of TN during 2013 due to good rainfall, and 2017 saw reduced output as the precipitation decreased. When the precipitation values were mutually exchanged, the resulting TN output from 2013 and 2017 years was comparable to the original TN yield from 2017 and 2013, respectively. This shows that precipitation essentially controls the production of the contaminants in the contributing watershed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Studying The Impact of Precipitation On Nutrient Loading into The Nagarjuna Sagar Reservoir from Contributing Watershed Using the SWAT model

Kondraju,

Sundara

2024

Preprint

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Understanding the Impact of Agricultural Fertilizer Application Over Inflows into Nagarjuna Sagar Reservoir

Teja

Rajan

2023

Lecture Notes in Civil Engineering

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What is the relationship between land use and surface water quality? A review and prospects from remote sensing perspective

Cheng

Fei

Shi

et al. 2022

Environ Sci Pollut Res

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Good surface water quality is critical to human health and ecology. Land use determines the surface water heat and material balance, which cause climate change and affect water quality. There are many factors affecting water quality degradation, and the process of influence is complex. As rivers, lakes, and other water bodies are used as environmental receiving carriers, evaluating and quantifying how impacts occur between land use types and surface water quality is extremely important. Based on the summary of published studies, we can see that (1) land use for agricultural and construction has a negative impact on surface water quality, while woodland use has a certain degree of improvement on surface water quality; (2) statistical methods used in relevant research mainly include correlation analysis, regression analysis, redundancy analysis, etc. Different methods have their own advantages and limitations; (3) in recent years, remote sensing monitoring technology has developed rapidly, and has developed into an effective tool for comprehensive water quality assessment and management. However, the increase in spatial resolution of remote sensing data has been accompanied by a surge in data volume, which has caused difficulties in information interpretation and other aspects.

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Water Quality in Inland Water Bodies: Hostage to the Intensification of Anthropogenic Land Uses

Cited by 7 publications

References 25 publications

Studying The Impact of Precipitation On Nutrient Loading into The Nagarjuna Sagar Reservoir from Contributing Watershed Using the SWAT model

Studying The Impact of Precipitation On Nutrient Loading into The Nagarjuna Sagar Reservoir from Contributing Watershed Using the SWAT model

Understanding the Impact of Agricultural Fertilizer Application Over Inflows into Nagarjuna Sagar Reservoir

What is the relationship between land use and surface water quality? A review and prospects from remote sensing perspective

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