scholarly journals Impact of climate change on the hydrological dynamics of River Ganga, India

2018 ◽  
Vol 11 (1) ◽  
pp. 274-290 ◽  
Author(s):  
C. K. Jain ◽  
Surya Singh
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Ecosystem Services ◽  
Anthropogenic Activities ◽  
Research Needs ◽  
Ecological Processes ◽  
Riverine Ecosystems ◽  
Indian Context ◽  
Hydropower Potential ◽  
River Ganga

Abstract Rivers provide innumerable ecosystem services to mankind. However, anthropogenic activities have inflicted a host of pressures to the riverine ecosystems. Climate change is also one of the human induced consequences which is of serious concern. A number of studies have predicted devastating effects of climate change. In the Indian context, where a river such as the Ganga is already suffering from industrial and municipal waste disposal, unhygienic rituals, and other activities, effects of climate change may further aggravate the situation. Climate change will not only result in disasters, but effects on water quality, biodiversity, and other ecological processes also cannot be denied. In this paper, an attempt has been made to evaluate the effects of climatic change on the dynamics of River Ganga. The study focuses on the impacts on fundamental ecological processes, river water quality, effect on species composition, and hydropower potential etc. The paper also discusses management aspects and research needs for rejuvenation of the River Ganga.

Dew as a sustainable non-conventional water resource: a critical review

2015 ◽  
Vol 23 (4) ◽  
pp. 425-442 ◽  
Author(s):  
Marlene Tomaszkiewicz ◽  
Majdi Abou Najm ◽  
Daniel Beysens ◽  
Ibrahim Alameddine ◽  
Mutasem El-Fadel
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Prediction Models ◽  
Future Research ◽  
Radiative Cooling ◽  
Formation Processes ◽  
Research Needs ◽  
Cooling Process ◽  
Adaptation To Climate Change ◽  
And Performance

Over the last 20 years, dew harvesting has evolved to fruition because of a better understanding of its physics, thermodynamics, and the radiative cooling process of condensing substrates. Although resultant yields are relatively small, dew positions itself as a viable water resources supplement because it occurs naturally and frequently in many locations globally, particularly in the absence of precipitation or when more traditional water sources are subject to depletion. Moreover, dew water is generally potable, especially in rural locations, where it is most beneficial. This review summarizes dew harvesting research achievements to date including formation processes, collection in various environments, prediction models, water quality, and applications. The paper concludes with outlining existing gaps and future research needs to improve the understanding and performance of dew harvesting in the context of adaptation to climate change.

scholarly journals Australia?s Biodiversity and Climate Change

2010 ◽  
Vol 16 (3) ◽  
pp. 221
Author(s):  
David Goodall
Keyword(s):  
Climate Change ◽  
Ecosystem Services ◽  
Natural Resources ◽  
Biodiversity Conservation ◽  
Climate Changes ◽  
Natural Resources Management ◽  
Ecological Processes ◽  
Resources Management ◽  
Number Of Species ◽  
Ministerial Council

This volume is the result of an initiative by the Natural Resources Management Ministerial Council, to assess the vulnerability of Australia?s biodiversity to climate change. It may be said at once that this remit is interpreted, not as referring to changes in ?biodiversity? as usually understood ? the number of species present ? but rather as covering all responses of organisms and the ecosystems in which they participate to the climate changes now in progress and in prospect. This extension of ?biodiversity? is clarified by the statement that ?modern biodiversity conservation . . . should ensure . . . the maintenance of ecological processes and the delivery of ecosystem services?.

VegPáramo, a flora and vegetation database for the Andean páramo

2015 ◽  
Vol 45 (1) ◽  
pp. 195-201 ◽  
Author(s):  
Gwendolyn Peyre ◽  
Henrik Balslev ◽  
David Martí ◽  
Petr Sklenář ◽  
Paul Ramsay ◽  
...  
Keyword(s):  
Climate Change ◽  
Ecosystem Services ◽  
Research And Development ◽  
Anthropogenic Activities ◽  
Biological Data ◽  
Data Sources ◽  
Conservation Strategies ◽  
Northern Andes ◽  
Vegetation Database ◽  
Scientific Significance

The páramo region in the northern Andes is very biodiverse, presents high endemism and provides many ecosystem services. Unfortunately, the páramo is critically threatened by anthropogenic activities and climate change. Further research and development of efficient conservation strategies are therefore needed for the region, but they are often limited by the lack of consistent biological data-sources. Here we present VegPáramo (GIVD ID: SA-00-002, http://www.givd.info/ID/SA-00-002), a flora and vegetation database for the páramo based on phytosociological vegetation plots. VegPáramo contains data from 3,000 georeferenced vegetation plots with updated nomenclature. The database is accessible through the webportal http://www.vegparamo.com, from which floristic and vegetation data can be freely consulted and downloaded. This new tool should make future botanical and ecological páramo studies easier. VegPáramo is already geographically and floristically representative for the páramo region, but we hope it will continue to grow in scientific significance via new data addition and revision.

scholarly journals A dataset of remote-sensed Forel-Ule Index for global inland waters during 2000–2018

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Shenglei Wang ◽  
Junsheng Li ◽  
Wenzhi Zhang ◽  
Chang Cao ◽  
Fangfang Zhang ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Anthropogenic Activities ◽  
Colour Change ◽  
Water Quality Monitoring ◽  
Inland Waters ◽  
Optical Remote Sensing ◽  
Large Lakes ◽  
Significant Information ◽  
Water Colour

AbstractWater colour is the result of its constituents and their interactions with solar irradiance; this forms the basis for water quality monitoring using optical remote sensing data. The Forel-Ule Index (FUI) is a useful comprehensive indicator to show the water colour variability and water quality change in both inland waters and oceans. In recent decades, lakes around the world have experienced dramatic changes in water quality under pressure from both climate change and anthropogenic activities. However, acquiring consistent water colour products for global lakes has been a challenge. In this paper we present the first time series FUI dataset for large global lakes from 2000–2018 based on MODIS observations. This dataset provides significant information on spatial and temporal changes of water colour for global large lakes during the past 19 years. It will be valuable to studies in search of the drivers of global and regional lake colour change, and the interaction mechanisms between water colour, hydrological factors, climate change, and anthropogenic activities.

scholarly journals Trends in Diatom Research Since 1991 Based on Topic Modeling

2019 ◽  
Vol 7 (8) ◽  
pp. 213 ◽  
Author(s):  
Yun Zhang ◽  
Juan Tao ◽  
Jun Wang ◽  
Liuyong Ding ◽  
Chengzhi Ding ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Latent Dirichlet Allocation ◽  
Anthropogenic Activities ◽  
Carbon Sources ◽  
Temporal Distribution ◽  
Climate Change Impacts ◽  
Wide Range ◽  
Aquatic Food ◽  
Basic Studies

Diatoms are fundamental carbon sources in a wide range of aquatic food webs and have the potential for wide application in addressing environmental change. Understanding the evolution of topics in diatom research will provide a clear and needed guide to strengthen research on diatoms. However, such an overview remains unavailable. In this study, we used Latent Dirichlet Allocation (LDA), a generative model, to identify topics and determine their trends (i.e., cold and hot topics) by analyzing the abstracts of 19,000 publications from the Web of Science that were related to diatoms during 1991–2018. A total of 116 topics were identified from a Bayesian model selection. The hot topics (diversity, environmental indicator, climate change, land use, and water quality) that were identified by LDA indicated that diatoms are increasingly used as indicators to assess water quality and identify modern climate change impacts due to intensive anthropogenic activities. In terms of cold topics (growth rate, culture growth, cell life history, copepod feeding, grazing by microzooplankton, zooplankton predation, and primary productivity) and hot topics (spatial-temporal distribution, morphology, molecular identification, gene expression, and review), we determined that basic studies on diatoms have decreased and that studies tend to be more comprehensive. This study notes that future directions in diatom research will be closely associated with the application of diatoms in environmental management and climate change to cope with environmental challenges, and more comprehensive issues related to diatoms should be considered.

scholarly journals Potential impacts of a future Nordic bioeconomy on surface water quality

AMBIO ◽  
2020 ◽  
Vol 49 (11) ◽  
pp. 1722-1735 ◽  
Author(s):  
Hannu Marttila ◽  
Ahti Lepistö ◽  
Anne Tolvanen ◽  
Marianne Bechmann ◽  
Katarina Kyllmar ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Ecosystem Services ◽  
Multiple Stressors ◽  
Ecological Status ◽  
Surface Water Quality ◽  
Mitigation Measures ◽  
Catchment Management ◽  
Catchment Scale ◽  
Sediment Loads

Abstract Nordic water bodies face multiple stressors due to human activities, generating diffuse loading and climate change. The ‘green shift’ towards a bio-based economy poses new demands and increased pressure on the environment. Bioeconomy-related pressures consist primarily of more intensive land management to maximise production of biomass. These activities can add considerable nutrient and sediment loads to receiving waters, posing a threat to ecosystem services and good ecological status of surface waters. The potential threats of climate change and the ‘green shift’ highlight the need for improved understanding of catchment-scale water and element fluxes. Here, we assess possible bioeconomy-induced pressures on Nordic catchments and associated impacts on water quality. We suggest measures to protect water quality under the ‘green shift’ and propose ‘road maps’ towards sustainable catchment management. We also identify knowledge gaps and highlight the importance of long-term monitoring data and good models to evaluate changes in water quality, improve understanding of bioeconomy-related impacts, support mitigation measures and maintain ecosystem services.

scholarly journals Expert Assessment of Risks Posed by Climate Change and Anthropogenic Activities to Ecosystem Services in the Deep North Atlantic

2019 ◽  
Vol 6 ◽  
Author(s):  
Claire W. Armstrong ◽  
Godwin K. Vondolia ◽  
Naomi S. Foley ◽  
Lea-Anne Henry ◽  
Katherine Needham ◽  
...  
Keyword(s):  
Climate Change ◽  
Ecosystem Services ◽  
North Atlantic ◽  
Anthropogenic Activities ◽  
Expert Assessment

scholarly journals Sundarban mangroves: diversity, ecosystem services and climate change impacts

2017 ◽  
Vol 2 (4) ◽  
pp. 488-507 ◽  
Author(s):  
Sucharit Basu Neogi ◽  
Mouri Dey ◽  
SM Lutful Kabir ◽  
Syed Jahangir H Masum ◽  
German Kopprio ◽  
...  
Keyword(s):  
Climate Change ◽  
Ecosystem Services ◽  
Climatic Factors ◽  
Climate Change Impacts ◽  
Ecosystem Dynamics ◽  
Economic Losses ◽  
Waterborne Diseases ◽  
Ecological Processes ◽  
Bengal Delta ◽  
Interdisciplinary Approaches

The Bengal delta coast harboring the famous Sundarban mangroves is extremely vulnerable to climate change. Already, salinity intrusion, increasing cyclones and anomalies in rainfall, and temperature, are causing many social and livelihood problems. However, our knowledge on the diversified climate change impacts on Sundarban ecosystems services, providing immense benefits, including foods, shelters, livelihood, and health amenities, is very limited. Therefore, this article has systematically reviewed the major functional aspects, and highlights on biodiversity, ecosystem dynamics, and services of the Sunderban mangroves, with respect to variations in climatic factors. The mangrove ecosystems are highly productive in terms of forest biomass, and nutrient contribution, especially through detritus-based food webs, to support rich biodiversity in the wetlands and adjacent estuaries. Sundarban mangroves also play vital role in atmospheric CO2 sequestration, sediment trapping and nutrient recycling. Sea level rise will engulf a huge portion of the mangroves, while the associated salinity increase is posing immense threats to biodiversity and economic losses. Climate-mediated changes in riverine discharge, tides, temperature, rainfall and evaporation will determine the wetland nutrient variations, influencing the physiological and ecological processes, thus biodiversity and productivity of Sundarban mangroves. Hydrological changes in wetland ecosystems through increased salinity and cyclones will lower the food security, and also induce human vulnerabilities to waterborne diseases. Scientific investigations producing high resolution data to identify Sundarban?s multidimensional vulnerabilities to various climatic regimes are essential. Sustainable plans and actions are required integrating conservation and climate change adaptation strategies, including promotion of alternative livelihoods. Thus, interdisciplinary approaches are required to address the future climatic disasters, and better protection of invaluable ecosystem services of the Sunderban mangroves.Asian J. Med. Biol. Res. December 2016, 2(4): 488-507

Emergence of New Potential Insect Pests of Date Palm: Could Climate Change Be the Reason?

2019 ◽  
Vol 30 (6) ◽  
pp. 242-245
Author(s):  
Hamadttu A. F. El-Shafie
Keyword(s):  
Climate Change ◽  
Date Palm ◽  
Insect Pests ◽  
Anthropogenic Activities ◽  
Economic Damage ◽  
South American ◽  
Palm Fruit ◽  
The Family ◽  
American Palm ◽  
Sorghum Chafer

Four insect species were reported as new potential pests of date palm in recent years. They are sorghum chafer (Pachnoda interrupta), the rose chafer (Potosia opaca), the sericine chafer beetle (Maladera insanablis), and the South American palm borer (Pysandisia archon). The first three species belong to the order Coleoptera and the family Scarabaeidae, while the fourth species is a lepidopteran of the family Castniidae. The injury as well as the economic damage caused by the four species on date palm need to be quantified. Due to climate change and anthropogenic activities, the date palm pest complex is expected to change in the future. To the author's knowledge, this article provides the first report of sorghum chafer as a pest damaging date palm fruit.

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