نتایج جستجو برای: water scarcity

تعداد نتایج: 559603  

Journal: :Sustainability 2023

Saudi Arabia (SA) faces a water shortage, and it further challenges sustainable agriculture, industrial development the well-being of people. SA uses more than 80% its resources for agricultural purposes. Groundwater extractions account most this demand, which is not sustainable. Hence, study aims to analyze management practices used in propose viable workable solutions achieve scarce resources...

2017
Simon Damkjaer Richard Taylor

Metrics of water scarcity and stress have evolved over the last three decades from simple threshold indicators to holistic measures characterising human environments and freshwater sustainability. Metrics commonly estimate renewable freshwater resources using mean annual river runoff, which masks hydrological variability, and quantify subjectively socio-economic conditions characterising adapti...

Journal: :Journal of International Economic Law 2014

2016
Douglas Aitken Diego Rivera Alex Godoy-Faúndez Eduardo Holzapfel

Chile contains some of the driest areas in the world, yet human activities in these areas require large volumes of water, the result is regions experiencing high water scarcity leading to environmental degradation, conflicts and reduced industrial productivity. The aim of this paper was to quantify the water scarcity in the central and northern regions by calculating the water scarcity index—th...

2012
Arjen Y. Hoekstra Mesfin M. Mekonnen Ashok K. Chapagain Ruth E. Mathews Brian D. Richter

Freshwater scarcity is a growing concern, placing considerable importance on the accuracy of indicators used to characterize and map water scarcity worldwide. We improve upon past efforts by using estimates of blue water footprints (consumptive use of ground- and surface water flows) rather than water withdrawals, accounting for the flows needed to sustain critical ecological functions and by c...

2017
Jingyuan Wang Li Li

To make a real difference for our thirsty planet, we establish the water demand-supply model and the Advanced Water Poverty Index (AWPI). First, we develop a dynamic demand-supply model to measure the ability of a region to satisfy its water consumption. On the demand side, we fit agricultural and industrial water needs by the Grey Verhulst prediction model, then we consider domestic needs thro...

Journal: :Canadian Water Resources Journal 1993

ژورنال: علوم آب و خاک 2020

This study aimed to investigate the vulnerability of Sistan plain to fluctuations and Water Scarcity in Hirmand River using the vulnerability framework, by applying the resilience approach. The socioeconomic and biophysical components presented in this framework were embedded in a set of subsystems of the System Dynamics (SD) model. According to this, four levels of reference resilience were de...

Journal: :puntOorg International Journal 2016

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