Spatial and temporal variations in the relationship between lake water surface temperatures and water quality - A case study of Dianchi Lake

Yang, Kun; Yu, Zhenyu; Luo, Yi; Yang, Yang; Zhao, Lei; Zhou, Xiaolu

doi:10.1016/j.scitotenv.2017.12.119

Cited by 222 publications

(85 citation statements)

References 18 publications

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“…The lowest dissolved oxygen concentrations represent the proliferation of biological organisms (Gupta and Gupta 2006;Reygondeau et al 2017), which consume the dissolved oxygen content of the water. The dissolved oxygen content is strongly affected by high temperature which is usually higher from November to April and is low from May to October (Yang et al 2018). The increase in water temperature decreases the solubility of oxygen in water (El-Shabrawy 1996;Toufeek and Korium 2009;Idowu et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Environmental assessment of physical-chemical features of Lake Nasser, Egypt

Rizk

Juzsakova

Creţescu

et al. 2020

Environ Sci Pollut Res

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Lake Nasser is one of the largest man-made lakes on earth. It has a vital importance to Egypt for several decades because of the safe water supply of the country. Therefore, the water quality of the Lake Nasser must be profoundly investigated, and physico-chemical parameter changes of the water of the Lake Nasser should be continuously monitored and assessed. This work describes the present state of the physico-chemical (nitrate-nitrogen, nitrite-nitrogen, orthophosphate, total phosphate content, dissolved oxygen content, chemical oxygen demand, and biological oxygen demand) water parameters of Lake Nasser in Egypt at nine measurement sites along the Lake Nasser. The algorithm was devised at the University of Pannonia, Hungary, for the evaluation of the water quality. The aquatic environmental indices determined alongside the Lake Nasser fall into the category of "good" water quality at seven sampling sites and exhibited "excellent" water quality at two sampling sites according to Egyptian Governmental Decree No. 92/2013. In light of the tremendous demand for safe and healthy water supply in Egypt and international requirements, the water quality assessment is a very important tool for providing reliable information on the water quality. The protocol for water quality assessment could significantly contribute to the provision of high-quality water supply in Egypt. In conclusion, it can be stated that the parameters under investigation in different regions of Lake Nasser fall within the permissible ranges and the water of the Lake has good quality for drinking, irrigation, and fish cultures according to Egyptian standards; however, according to European specifications, there are steps to be accomplished for future water quality improvement. Keywords Water quality assessment. Physico-chemical parameters. Aquatic environmental index. Lake Nasser. River Nile. Egypt Nomenclature AEA Aquatic environmental assessment AEI Aquatic environmental index APHA American Public Health Association BOD 5 Biochemical oxygen demand during decomposition occurring over a 5-day period Chl Chlorophyll-a content CLvi Limit value of water chemistry parameter i CMi Measured value of water chemistry parameter i COD cr Chemical oxygen demand DO Dissolved oxygen content EC Electrical conductivity GD Governmental Decree

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Section: Introductionmentioning

confidence: 99%

Environmental assessment of physical-chemical features of Lake Nasser, Egypt

Rizk

Juzsakova

Creţescu

et al. 2020

Environ Sci Pollut Res

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“…The issue of water temperature fluctuations in lakes is frequently discussed, among other reasons, due to the key importance of the parameter in the course of all processes and phenomena occurring in those ecosystems. Numerous studies concern the physical-chemical [6,7], biological [8,9], and hydrological aspects [10,11]. Considering the elementary importance of temperature for the functioning of lakes, issues related to the consequences of global warming are of high importance.…”

Section: Introductionmentioning

confidence: 99%

Effect of Environmental Conditions and Morphometric Parameters on Surface Water Temperature in Polish Lakes

Ptak

Sojka

Choiński

et al. 2018

Water

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The study evaluated the effect of environmental conditions and morphometric parameters on lake water temperature changes. The analysis was carried out on the basis of 14 lakes located in northern Poland. The assessment was based on the daily water and air temperatures from 1972 to 2016. It took into account the location of lakes (latitude, longitude, altitude) morphometric parameters (surface area, maximum and mean depth, volume), hydrological processes (rate of water exchange, course of ice phenomena), and trophic status (water transparency) as factors that can modify lake water temperature changes. Direction and rate of air and water temperature changes were analysed by means of Mann-Kendall's and Sen's tests. Cluster analysis (CA) was applied to group lakes characterised by similar water temperature changes. The effect of climatic and non-climatic parameters on a lake's water temperature was assessed on the basis of principal component analysis (PCA). Water temperatures in the lakes in the years 1972-2016 were characterised by a higher rate of increase of 0.43 • C·dec −1 than the air temperature decrease of 0.34 • C·dec −1 . The analysis showed a faster rate of heating of waters in western Poland. This can be explained by shorter duration of ice cover. Moreover, the changes of water temperature were affected by other factors, including the location of the lakes, their morphometric parameters, wind speed, water transparency and water exchange time.

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“…Failure to consider such potential mismatches can even lead to negative impacts through functional disservices [24]. Much is known about the spatial distribution of ecological functions, such as predation [25], pollination [26] or water quality [27]. Nevertheless, applications still rarely link animal reintroductions to fine-scale spatial patterns of ecological function.…”

Section: Introductionmentioning

confidence: 99%

Where to rewild? A conceptual framework to spatially optimize ecological function

Thierry

Rogers

2020

Proc. R. Soc. B.

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Rewilding is an approach aiming at restoring ecosystems to a self-sustaining state by restoring ecological function through active reintroductions or passive management. Locations for most rewilding-through-reintroduction efforts today are selected based on the suitability of the habitat for the reintroduced species, often with little consideration of where the ecological function is most needed. We developed the Spatial Planning of Rewilding Effort (Spore) framework to identify priority locations for rewilding projects through simultaneous consideration of habitat suitability and provisioning of ecological function. We use the island of Guam as a case study for a potential rewilding project, as the island has functionally lost all native seed dispersers as a result of the invasive brown treesnake (Boiga irregularis). The Såli (Micronesian starling, Aplonis opaca) is a good candidate for rewilding to restore ecological function, because it is an effective seed disperser with a localized remnant population. Using Spore, we identify three priority areas for the restoration of seed dispersal, each subdivided into management units. By recognizing the influence of landscape structure and the behaviour of the reintroduced species on the spatial pattern of the function provided by that species, this approach should lead to improved ecological outcomes.royalsocietypublishing.org/journal/rspb Proc. R. Soc. B 287: 20193017

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Spatial and temporal variations in the relationship between lake water surface temperatures and water quality - A case study of Dianchi Lake

Cited by 222 publications

References 18 publications

Environmental assessment of physical-chemical features of Lake Nasser, Egypt

Environmental assessment of physical-chemical features of Lake Nasser, Egypt

Effect of Environmental Conditions and Morphometric Parameters on Surface Water Temperature in Polish Lakes

Where to rewild? A conceptual framework to spatially optimize ecological function

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