Assessing Institutional Barriers to Effective Dissemination Strategies of Proven Water Management Practices to Face Climate Change Threats in the Citrus Growing Area in Tunisia

2021 ◽  
pp. 213-226
Author(s):  
Asma Lasram ◽  
Hatem Dellagi ◽  
Bezaiet Dessalegn ◽  
Boubaker Dhehibi ◽  
Netij Ben Mechlia
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Management Practices ◽  
Institutional Barriers ◽  
Effective Dissemination

scholarly journals Inter-model agreement on projected shifts in California hydroclimate characteristics critical to water management

2020 ◽  
Author(s):  
Geeta G. Persad ◽  
Daniel L. Swain ◽  
Claire Kouba ◽  
J. Pablo Ortiz-Partida
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Management Practices ◽  
Global Climate Model ◽  
Regional Scale ◽  
The State ◽  
Change Scenario ◽  
Projection Data ◽  
Emissions Scenarios ◽  
Model Agreement

Abstract Shifts away from the historical hydroclimate in populated regions can have dire consequences for water management. Regions like the state of California—where highly engineered, geographically interconnected, and inflexible water management systems are predicated on particular spatiotemporal patterns of water availability—are particularly vulnerable to hydroclimate shifts. However, much of the analysis of hydroclimate sensitivity to anthropogenic climate change has focused on gross metrics like annual mean precipitation, which is highly uncertain at the regional scale. This perceived uncertainty has deterred adaptation investments and quantitative integration of climate projection data into regional water management. Here, we assess projected future shifts in the state of California in a range of hydroclimate metrics critical to water management, using data from 10 statistically downscaled global climate model and two emissions scenarios currently used by the state. We find substantial inter-model agreement under both emissions scenarios—and > 80% inter-model agreement under the more severe climate change scenario—across metrics that collectively point toward an increasingly volatile, temporally concentrated, and extreme precipitation future for the state. We show, via hydrologic and operations modeling, that accounting for shifts in these more nuanced metrics reduces the projected reliability and sustainability of current water management practices to a greater degree than would be inferred from changes in total annual precipitation alone. These results highlight both the viability and critical importance of incorporating climate change projections quantitatively into water management decisions in California and other regions vulnerable to hydroclimate shifts, and underscore the need to develop integrated climate-hydrologic-operations models and decision-making protocols capable of accounting for all projected hydroclimate shifts.

Improved Irrigation Management for Sustainable Agriculture

2015 ◽  
pp. 357-378 ◽  
Author(s):  
Vesna Popović ◽  
Vladan Ugrenović
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Natural Resources ◽  
Management Practices ◽  
Irrigation Management ◽  
Sustainable Intensification ◽  
Green Economy ◽  
Irrigation Development ◽  
The Republic

Studying the future of food and farming, scientists have called for sustainable intensification to simultaneously raise yields and increase efficiency in the use of inputs and reduce the negative environmental effects of food production. Sustainable intensification requires sustainable agricultural techniques such as improved water management practices that result in higher, stabilized, and diversified agricultural production, and greater resilience to climate change without the deterioration of natural resources and the environment. This chapter is devoted to the role of irrigation development in Serbian agriculture and its contribution to the development of the green economy in the Republic of Serbia.

scholarly journals Different processes affecting long-term Ravenna coastal drainage basins (Italy): implications for water management

2021 ◽  
Vol 80 (15) ◽  
Author(s):  
Lukman A. Soboyejo ◽  
Beatrice M. S. Giambastiani ◽  
Mario Molducci ◽  
Marco Antonellini
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Land Subsidence ◽  
Management Practices ◽  
Saline Water ◽  
Soil Salinization ◽  
Soil Water Storage ◽  
Drought Indices ◽  
Water Drainage ◽  
Coastal Basins

AbstractThe low-lying coastal basins of Ravenna (Italy) are at or below mean sea level and currently undergoing land subsidence, which exposes the basins to frequent inundation and groundwater and soil salinization. The surface water drainage becomes necessary to lower the water table head and further prevent flooding and waterlogging. The study examines the evolution of drainage apropos to climate change and land subsidence in the three main Ravenna coastal basins. Our findings show that the evolution of drainage is influenced by land subsidence, climate change variability, droughts, vertical seepage, and local water management. Land subsidence causes an increase in upward-directed vertical seepage of saline water through the shallow unconfined aquifer into the drainage channels of the coastal basins, thus leading to an increase in drainage through time. At a seasonal timescale, the rate of pumping depends on antecedent rainfall and soil–water storage. The warming extremes indices, specifically drought indices, show to be more significant than rainfall indices trends to monitor drainage evolution. Drought indices permit easy comparison of dryness or wetness severity with drainage evolution along their time scale. The co-occurring anthropogenic and natural factors involving in the increasing drainage rate will affect decadal and seasonal water management policies in the area. The implications of increasing drainage rates, long periods of drought with limited rainfall, and increasing temperature will further worsen freshwater availability in this coastal area already experiencing soil and water salinization. However, drainage of this low-lying territory has effectively mitigated rising water tables and avoided flooding. Our study has shown that each coastal basin behaves differently in terms of sensitivity to land subsidence and climate extremes. Therefore, when using drainage data time series for water management purposes, one should account for past management practices and for the specific sensitivity of each basin to external factors.

scholarly journals Linked hydrologic and social systems that support resilience of traditional irrigation communities

2015 ◽  
Vol 19 (1) ◽  
pp. 293-307 ◽  
Author(s):  
A. Fernald ◽  
S. Guldan ◽  
K. Boykin ◽  
A. Cibils ◽  
M. Gonzales ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Management Practices ◽  
Irrigation System ◽  
Social Systems ◽  
Irrigation Management ◽  
Hydrologic Processes ◽  
Traditional Local Knowledge ◽  
The Face ◽  
Traditional Irrigation

Abstract. Southwestern US irrigated landscapes are facing upheaval due to water scarcity and land use conversion associated with climate change, population growth, and changing economics. In the traditionally irrigated valleys of northern New Mexico, these stresses, as well as instances of community longevity in the face of these stresses, are apparent. Human systems have interacted with hydrologic processes over the last 400 years in river-fed irrigated valleys to create linked systems. In this study, we ask if concurrent data from multiple disciplines could show that human-adapted hydrologic and socioeconomic systems have created conditions for resilience. Various types of resiliencies are evident in the communities. Traditional local knowledge about the hydrosocial cycle of community water management and ability to adopt new water management practices is a key response to disturbances such as low water supply from drought. Livestock producers have retained their irrigated land by adapting: changing from sheep to cattle and securing income from outside their livestock operations. Labor-intensive crops decreased as off-farm employment opportunities became available. Hydrologic resilience of the system can be affected by both human and natural elements. We find, for example, that there are multiple hydrologic benefits of traditional irrigation system water seepage: it recharges the groundwater that recharges rivers, supports threatened biodiversity by maintaining riparian vegetation, and ameliorates impacts of climate change by prolonging streamflow hydrographs. Human decisions to transfer water out of agriculture or change irrigation management, as well as natural changes such as long-term drought or climate change, can result in reduced seepage and the benefits it provides. We have worked with the communities to translate the multidisciplinary dimensions of these systems into a common language of causal loop diagrams, which form the basis for modeling future scenarios to identify thresholds and tipping points of sustainability. Early indications are that these systems, though not immune to upheaval, have astonishing resilience.

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