scholarly journals Impact of Increasing Pumping Discharge on Groundwater Level in the Nile Delta Aquifer, Egypt

2021 ◽  
Vol 2 (2) ◽  
pp. 13-23
Author(s):  
Asaad Armanuos ◽  
Kamal Ahmed ◽  
Mohammed Sanusi Shiru ◽  
Mehdi Jamei
Keyword(s):  
Climate Change ◽  
Model Validation ◽  
Cross Sections ◽  
Groundwater Level ◽  
Nile Delta ◽  
Potential Effect ◽  
Substantial Effect ◽  
Irrigation Canals ◽  
Current State ◽  
Impacts Of Climate Change

The main goal of this research is to develop a 3D groundwater (GW) model using MODFLOW software to assess the potential effect of increasing pumping discharges on GW level in the Nile Delta Aquifer (NDA). In this study, the current state of the irrigation canals and GW recharge are considered in the GW model. The simulated GW level was compared with the observed GW level for model validation. Three vertical cross sections in western central and eastern areas of the ND are selected to check the impacts of GW pumping on variations of GW level. Ten scenarios of increasing the abstraction rates in all areas of the ND are tested. The results confirmed that increasing the pumping discharges has a substantial effect on decreasing the GW level in central and southern areas of the NDA. In addition, the tenth scenario is considered the last case where the drawdown of GW level reached 1.32, 1.59, and 2.41m in the southern boundaries. The findings of the study should be considered when studying the management of GW resources and the impacts of climate change on the ND.

scholarly journals Possible adaptation measures of agriculture sector in the Nile Delta to climate change impacts

2009 ◽  
Vol 3 (1) ◽  
pp. 123-126 ◽  
Author(s):  
S. M. Attaher ◽  
M. A. Medany ◽  
A. F. Abou-Hadid
Keyword(s):  
Climate Change ◽  
Nile Delta ◽  
Climate Change Impacts ◽  
Yield Reduction ◽  
Agricultural System ◽  
Delta Region ◽  
Adaptation Measures ◽  
Agriculture Sector ◽  
The World ◽  
Impacts Of Climate Change

Abstract. The overall agricultural system in the Nile Delta region is considered as one of the highest intensive and complicated agriculture systems in the world. According to the recent studies, the Nile Delta region is one of the highly vulnerable regions in the world to climate change. Sea level rise, soil and water degradation, undiversified crop-pattern, yield reduction, pests and disease severity, and irrigation and drainage management were the main key factors that increased vulnerability of the agriculture sector in that region. The main objective of this study is to conduct a community-based multi-criteria adaptation assessment in the Nile Delta using a preset questionnaire. A list of possible adaptation measures for agriculture sector was evaluated. The results indicated that the Nile Delta growers have strong perceptions to act positively to reduce the impacts of climate change. They reflected the need to improve the their adaptive capacity based on clear scientific message with adequate governmental support to coop with the negative impacts of climate change.

scholarly journals Proximity of waterways to Finnish farmlands and associated characteristics of regional land use

2015 ◽  
Vol 24 (1) ◽  
pp. 24-38 ◽  
Author(s):  
Pirjo Peltonen-Sainio ◽  
Heikki Laurila ◽  
Lauri Jauhiainen ◽  
Laura Alakukku
Keyword(s):  
Climate Change ◽  
Management Systems ◽  
Background Information ◽  
Current State ◽  
Irrigation Potential ◽  
Basic Understanding ◽  
Access To Water ◽  
Yield Gaps ◽  
Regional Land ◽  
Impacts Of Climate Change

High latitude agriculture is rainfed. Climate change could, however, increase water deficiency and initiate a call for development of irrigation systems as a part of field water management systems. This study aimed to develop a basic understanding about the current state of irrigation potential according to region by monitoring proximity of fields to waterways and characterizing their general conditions. One third of Finnish fields are in direct contact with a shoreline of an inland waterway. This coupled with Finland being water-rich country may improve adaptive capacity to cope with the potentially harmful impacts of climate change in the future. However, there are marked differences between regions in access to water resources. Findings of this survey will serve as background information needed to assess future needs for introduction of irrigation and to evaluate the opportunities to close yield gaps and improve yield stability through irrigation.

scholarly journals Projecting impacts of climate change on metal mobilization at contaminated sites: Controls by the groundwater level

2020 ◽  
Vol 712 ◽  
pp. 135560 ◽  
Author(s):  
Jerker Jarsjö ◽  
Yvonne Andersson-Sköld ◽  
Mats Fröberg ◽  
Jan Pietroń ◽  
Robin Borgström ◽  
...  
Keyword(s):  
Climate Change ◽  
Groundwater Level ◽  
Contaminated Sites ◽  
Metal Mobilization ◽  
Impacts Of Climate Change

From GCMs to river flow: a review of downscaling methods and hydrologic modelling approaches

1999 ◽  
Vol 23 (2) ◽  
pp. 229-249 ◽  
Author(s):  
Chong-yu Xu
Keyword(s):  
Climate Change ◽  
River Flow ◽  
Scientific Literature ◽  
Global Climate ◽  
Practical Application ◽  
Hydrologic Models ◽  
Hydrologic Modelling ◽  
The Past ◽  
Current State ◽  
Impacts Of Climate Change

The scientific literature of the past decade contains a large number of reports detailing the development of downscaling methods and the use of hydrologic models to assess the potential effects of climate change on a variety of water resource issues. This article reviews the current state of methodologies for simulating hydrological responses to global climate change. Emphasis is given to recent advances in climatic downscaling and the problems related to the practical application of appropriate models in impact studies. Following a discussion of the advantages and deficiencies of the various approaches, challenges for the future study of the hydrological impacts of climate change are identified.

scholarly journals GRAPHIC - Groundwater and Climate Change - Small Island Developing States (SIDS)

2017 ◽  
Author(s):  
Chloé Meyer
Keyword(s):  
Climate Change ◽  
Climate Change Mitigation ◽  
Groundwater Resources ◽  
Position Paper ◽  
Small Island ◽  
Small Island Developing States ◽  
Current State ◽  
The Pacific ◽  
Change Mitigation ◽  
Impacts Of Climate Change

The purpose of this paper is to summarize the (I) current state of groundwater on SIDS, (II) potential impacts of climate change to groundwater on SIDS, and (III) importance of groundwater resources in climate change mitigation on SIDS. GRAPHIC’s SIDS studies are highlighted, including several from the Pacific, Caribbean, and other regions of the globe. This paper is part of a series of GRAPHIC publications following the release of the GRAPHIC position paper in 2015. Climate change Groundwater SIDS

Climate Change in the Tropics: Ecological and Evolutionary Responses at Low Latitudes

2019 ◽  
Vol 50 (1) ◽  
pp. 303-333 ◽  
Author(s):  
Kimberly S. Sheldon
Keyword(s):  
Climate Change ◽  
Life Histories ◽  
Research Priorities ◽  
Tropical Species ◽  
Polar Regions ◽  
Ecological Communities ◽  
Tropical Regions ◽  
Current State ◽  
The Tropics ◽  
Impacts Of Climate Change

Climate change is affecting every ecosystem on Earth. Though climate change is global in scope, literature reviews on the biotic impacts of climate change have focused on temperate and polar regions. Tropical species have distinct life histories and physiologies, and ecological communities are assembled differently across latitude. Thus, tropical species and communities may exhibit different responses to climate change compared with those in temperate and polar regions. What are the fingerprints of climate change in the tropics? This review summarizes the current state of knowledge on impacts of climate change in tropical regions and discusses research priorities to better understand the ways in which species and ecological communities are responding to climate change in the most biodiverse places on Earth.

scholarly journals Potential changes in the distribution of Carnegiea gigantea under future scenarios

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5623 ◽  
Author(s):  
Fabio Albuquerque ◽  
Blas Benito ◽  
Miguel Ángel Macias Rodriguez ◽  
Caitlin Gray
Keyword(s):  
Climate Change ◽  
Habitat Suitability ◽  
Sonoran Desert ◽  
Potential Effect ◽  
Desert Ecosystem ◽  
Suitable Habitat ◽  
Desert Ecosystems ◽  
Carnegiea Gigantea ◽  
Abiotic Variables ◽  
Impacts Of Climate Change

Over the last decades several studies have identified that the directional changes in climate induced by anthropogenic emissions of greenhouse gases are affecting the ecology of desert ecosystems. In the Southwest United States, the impacts of climate change to plant abundance and distribution have already been reported, including in the Sonoran Desert ecosystem, home of the iconic Saguaro (Carnegiea gigantea). Hence, there is an urgent need to assess the potential impacts of climate change on the saguaro. The goals of this study are to provide a map of actual habitat suitability (1), describe the relationships between abiotic predictors and the saguaro distribution at regional extents (2), and describe the potential effect of climate change on the spatial distribution of the saguaro (3). Species Distribution Modeling (SDM) was used to investigate the relationships between abiotic variables and the Saguaro distribution. SDMs were calibrated using presence records, 2,000 randomly-generated pseudo absences, and ten abiotic variables. Of these, annual precipitation and max temperature of the warmest month was found to have the greatest relative influence on saguaro distribution. SDMs indicated that 6.9% and 8.1% of the current suitable habitat is predicted to be lost by 2050 and 2070, respectively. Therefore, predicted changes in climate may result in a substantial contraction of the suitable habitat for saguaro over the next century. By identifying the drivers of saguaro distribution and assessing potential changes in habitat suitability due to climate change, this study will help practitioners to design more comprehensive strategies to conserve the saguaro in the face of climate change.

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