Water Footprints and Sustainable Water Allocation

Chapagain, Ashok; Zhang, Guoping

doi:10.3390/su8010020

Cited by 50 publications

(33 citation statements)

References 31 publications

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“…In Horqin Sandy Land, groundwater is mainly recharged by rain and surface water, such as rivers and lakes. Surface water and groundwater are separate entities [69]. Once water demand exceeds the available surface supply, the correlation between the two entities will increase.…”

Section: Effects Of Lu/lc Changes On Gwsmentioning

confidence: 99%

Analysis of Water Resources in Horqin Sandy Land Using Multisource Data from 2003 to 2010

et al. 2016

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Over the past four decades, land use/land cover (LU/LC) change, coupled with persistent drought, has resulted in the decline of groundwater levels in Horqin Sandy Land. Accordingly, this study quantifies changes in LU/LC and groundwater storage (GWS). Furthermore, it investigates the effects of LU/LC changes on GWS. GWS changes are estimated using Gravity Recovery and Climate Experiment (GRACE) data and ground-based measurements obtained from July 2003 to December 2010. Soil moisture and snow water equivalent data derived from the Global Land Data Assimilation System (GLDAS) are used to isolate GWS changes from GRACE-derived terrestrial water storage changes. The result shows that the groundwater depletion rate in Horqin Sandy Land is 13.5˘1.9 mm¨year´1 in 2003-2010, which is consistent with the results of monitoring well stations. LU/LC changes are detected using bitemporal imageries (2003 and 2010) from Landsat Thematic Mapper through the post-classification comparison method. The result shows that LU/LC significantly changed during the aforementioned period. Bare soil and built-up land have increased by 76.6% and 82.2%, respectively, while cropland, vegetation, and water bodies have decreased by 14.1%, 74.5%, and 82.6%, respectively. The analysis of GWS and LU/LC changes shows that LU/LC changes and persistent drought are the main factors that affect groundwater resources.

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Section: Effects Of Lu/lc Changes On Gwsmentioning

confidence: 99%

Analysis of Water Resources in Horqin Sandy Land Using Multisource Data from 2003 to 2010

et al. 2016

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“…Water research has started to quantify and map footprints, but further efforts should be made to understand how to govern such footprints in a sustainable perspective [37].…”

Section: Discussionmentioning

confidence: 99%

A Grey Water Footprint Assessment of Groundwater Chemical Pollution: Case Study in Salento (Southern Italy)

et al. 2017

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Abstract:The worsening of groundwater quality is a huge problem for some regions, especially where a karst aquifer system is the most important water resource because of the deficiency of a well-developed superficial water supply. In this study the chemical quality of a deep aquifer of the Salento peninsula (Southern Italy), where a shallow aquifer and an extensive deep aquifer are exploited as a source of drinking water and irrigation water, was monitored. The indicator used to assess the sustainability of pollution produce by human activities is the "grey water footprint" (GWF) which measures the amount of water required to assimilate a polluting load produced from anthropic activity. The GWF, calculated for each chemical parameter, shows a widespread contamination by Mercury (Hg), Vanadium (V) and Ammonium (NH 4 + ) with concentrations above the limits (Lgs. D. 31/2001). The high Mercury and Vanadium concentrations may thus be associated with anthropic pressures on the aquifer, while Ammonium derives mainly from fertilizers used in agriculture. The situation that emerged involves reflections on the continuous human pressure on natural resources. Therefore, the management of groundwater quality requires a multidisciplinary approach focused on identifying the measures necessary to protect our water resources.

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“…In 2013, the journal Water Resources and Industry published the second special issue on Water Footprint Assessment [10]. The third special issue appeared in 2015, in the journal Sustainability [11]. The papers collected in the current issue appeared in 2016 and early 2017 in Water.…”

Section: Goalmentioning

confidence: 99%

Advancing Water Footprint Assessment Research: Challenges in Monitoring Progress towards Sustainable Development Goal 6

Hoekstra

Chapagain²,

Oel

2017

Water

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Abstract:This special issue is a collection of recent papers in the field of Water Footprint Assessment (WFA), an emerging area of research focused on the analysis of freshwater use, scarcity, and pollution in relation to consumption, production, and trade. As increasing freshwater scarcity forms a major risk to the global economy, sustainable management of water resources is a prerequisite to development. We introduce the papers in this special issue by relating them to Sustainable Development Goal (SDG) number 6 of the United Nations, the goal on water. We will particularly articulate how each paper drives the understanding needed to achieve target 6.3 on water quality and pollution and target 6.4 on water-use efficiency and water scarcity. Regarding SDG 6, we conclude that it lacks any target on using green water more efficiently, and while addressing efficiency and sustainability of water use, it lacks a target on equitable sharing of water. The latter issue is receiving limited attention in research as well. By primarily focusing on water-use efficiency in farming and industries at the local level, to a lesser extent to using water sustainably at the level of total water systems (like drainage basins, aquifers), and largely ignoring issues around equitable water use, understanding of our water problems and proposed solutions will likely remain unbalanced.

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Water Footprints and Sustainable Water Allocation

Cited by 50 publications

References 31 publications

Analysis of Water Resources in Horqin Sandy Land Using Multisource Data from 2003 to 2010

Analysis of Water Resources in Horqin Sandy Land Using Multisource Data from 2003 to 2010

A Grey Water Footprint Assessment of Groundwater Chemical Pollution: Case Study in Salento (Southern Italy)

Advancing Water Footprint Assessment Research: Challenges in Monitoring Progress towards Sustainable Development Goal 6

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