Pattern of the state of eutrophication in the floodplain wetlands of eastern India in context of climate change: a comparative evaluation of 27 wetlands

Sarkar, Soma Das; Sarkar, Uttam Kumar; Lianthuamluaia, Lianthuamluaia; Ghosh, Bandana Das; Roy, Koushik; Puthiyottil, Mishal; Das, Basanta Kumar

doi:10.1007/s10661-020-8114-8

Cited by 27 publications

(4 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A large number of studies have shown that climate change has brought new challenges to the water environment, which may be affected by changing water quantity, quality and aquatic biodiversity [12][13][14][15][16][17][18]. Studies on the impact of climate change on water environment have been conducted holding that global warming will cause a series of water quality problems, such as eutrophication, which is mainly manifested by algae increase and nutrient circulation acceleration [19][20][21][22][23]. Quantitative research on the response of water resources under the background of climate change has also been carried out holding that climate change will lead to serious threats to water resource systems [24][25][26][27] such as aggravates global hydrological drought [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Attribution and Sensitivity Analysis of Runoff Variation in the Yellow River Basin under Climate Change

et al. 2022

View full text Add to dashboard Cite

The Yellow River Basin is a typical arid and semi-arid area, which is very sensitive to climate change. In recent years, it has become the area with the greatest shortage of water resources in China. In this study, a new two-way coupling model of land surface and hydrology has been explored to analyze the impacts of climate change and human activities on the runoff. It is of great theoretical and practical significance for making better management countermeasures and strategies to cope with climate change in the Yellow River Basin. The results showed that: (1) the annual average precipitation in the basin was 470.1 mm, which was higher in the lower reaches than in the middle and upper reaches. The annual average temperature is 5.8 °C. The entire basin showed a remarkable warming speed. The annual average pan evaporation is 1067.3 mm showing a downward trend throughout the basin; (2) from 1987 to 2009, the contribution rate of climate change to runoff change has not fluctuated by more than 5%. Since 2010, the precipitation caused by climate factors has increased runoff by 12~15%. The impact of land use change on runoff has been increasing annually. The influence of projects on runoff change was the leading factor of runoff reduction in the Yellow River Basin, with the contribution rate around 50%; and (3) for every 10% decrease in precipitation, the runoff decreases by 13~15.7%. When the temperature rises by 1.0 °C, the runoff decreases by 2.1~4.2%. The runoff in the upper reaches of the Yellow River was most sensitive to precipitation and temperature changes. This showed that the runoff in the plateau and mountainous areas were highly sensitive to climate change.

show abstract

Section: Introductionmentioning

confidence: 99%

Attribution and Sensitivity Analysis of Runoff Variation in the Yellow River Basin under Climate Change

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Importance of Chl-a mapping and environmental influence: Chl-a indicates health of water in aquatic ecosystem (Boyer, Christopher, Peter, & David, 2009). It also provides trophic status based on primary productivity of the ecosystem (Das Sarkar et al, 2020) and measures trophy index (Bbalali, Hoseini, Ghorbani, & Kordi, 2013). Ecohydrological interaction studies in natural river system showed that physical variables such as, water discharge, suspended solids and turbidity regulate the development of phytoplankton biomass critically in comparison with nutrients (Salmaso & Braioni, 2008).…”

Section: Discussionmentioning

confidence: 99%

Effect of climato-environmental parameters on chlorophyll a concentration in the lower Ganga basin, India

Sarkar

Naskar

et al. 2020

RBT

Self Cite

View full text Add to dashboard Cite

Introduction: Chlorophyll a concentration proxies the phytoplankton biomass which directly involves in signifying the production functions of aquatic ecosystem. Thus, it is imperative to understand their spatio-temporal kinetics in lotic environment with reference to regional climatic variabilities in the tropical inland waters. Objective: In-situ studies were conducted to examine the changes in phytoplankton biomass in lower Ganga basin as influenced by various environmental parameters under regional climatic variability during 2014-2016. Methods: Firstly, the most key influential environmental parameters on riverine Chl-a concentration were determined. Then the direct cascading effect of changing climatic variables on key environmental parameters were derived through modeling and quantified probable changes in mean Chl-a concentration in the lower stretch of river. Results: Only five environmental parameters namely water temperature, total dissolved solid, salinity, total alkalinity and pH were key factors influencing Chl-a (Multiple R2: 0.638, P < 0.05). Present estimates indicate that if the present rate of regional climatic variability over the last 3 decades (mean air temperature + 0.24 °C, total annual rainfall -196.3 mm) remain consistent over the next three decades (2015-2045), an increase in mean Chl-a by + 170 µgL-1 may likely be expected grossly reaching about 475.94 µg L-1 by the year 2045 or more. Conclusions: The present study is first such comprehending a gross hint towards the probable ecosystem response with an alternative model based methodology in data-deficient situations. Subsequently, the output would also be of great benefit for increase water governance and developing strategy protocol for sustainable water management for greater ecosystem services.

show abstract

“…It must be considered prudently in relation to wet pond conservation goal. If the nutrient rich water amount that enters pond is more than pond's capacity to filter it, there might be a risk of eutrophication (Sarkar et al 2020). The excessive nutrient state will lead to over grow of certain species occurrence, which is again may affect food web balance.…”

Section: Template For Contributions To the Encyclopedia Of The Un Sus...mentioning

confidence: 99%

Natural Wet Ponds’ Role as Fresh Water Storage in Tropical Environment

Putra¹,

Fahmi²,

Kusin³

2021

Encyclopedia of the UN Sustainable Development Goals

View full text Add to dashboard Cite

Natural Pond is an area that is inundated without human intervention and modification. It can be formed due to wetland topography and geomorphology. Natural pond sources water from rainfall, river flow, tidal flow, groundwater, or combination of it. Natural pond water may remain available either along the year or only during certain events, depends on the pond hydrological processes. Natural pond water is distributed across wetland, dissimilar to lake water that is accumulated from its watershed. Hydrological processes are natural phenomena that relate to water cycle and its interaction with land and the lowest layer of the atmosphere. Tropical wetland is a landscape located around the earth's equator (Latitude 23.437° N to 23.437° S), which is most of the time inundated or saturated by water. Wetland water quality and quantity determine unique ecosystem that dwells in it. Water storage in environmental perspective is the amount of water stored in a landscape, which is necessary to sustain the environment.

show abstract

Pattern of the state of eutrophication in the floodplain wetlands of eastern India in context of climate change: a comparative evaluation of 27 wetlands

Cited by 27 publications

References 37 publications

Attribution and Sensitivity Analysis of Runoff Variation in the Yellow River Basin under Climate Change

Attribution and Sensitivity Analysis of Runoff Variation in the Yellow River Basin under Climate Change

Effect of climato-environmental parameters on chlorophyll a concentration in the lower Ganga basin, India

Natural Wet Ponds’ Role as Fresh Water Storage in Tropical Environment

Contact Info

Product

Resources

About