Unravelling Climate and Anthropogenic Forcings on the Evolution of Surface Water Resources in Southern France

In the Mediterranean, climate change and human pressures are expected to significantly impact the availability of surface water resources. In order to quantify these impacts during the last 60 years (1959–2018), we examined the hydro-climatic and land use change evolution in six coastal river basins of the Gulf of Lion in southern France. By combining observed water discharge, gridded climate, mapped land use and agricultural censuses data, we propose a statistical regression model which successfully reproduces the variability of annual water discharge in all basins. Our results clearly demonstrate that, despite important anthropogenic water withdrawals for irrigation, climate change is the major driver for the detected reduction of water discharge. The model can explain 78–88% of the variability of annual water discharge in the study catchments. It requires only two climatic indices that are solely computed from monthly temperature (T) and precipitation (P) data, thus allowing the estimation of the respective contributions of both parameters in the detected changes. According to our results, the study region experienced on average a warming trend of 1.6 °C during the last 60 years which alone was responsible for a reduction of almost 25% of surface water resources.

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Impact of climate change on superficial water resources in the South of France: statistical modelling over historical and future scenario periods

10.5194/egusphere-egu21-7132 ◽

2021 ◽

Author(s):

Camille Labrousse ◽

Sébastien Pinel ◽

Mahrez Sadaoui ◽

Wolfgang Ludwig ◽

Guillaume Lacquement

Keyword(s):

Climate Change ◽

Water Resources ◽

Large Scale ◽

Climate Models ◽

Water Discharge ◽

Strong Argument ◽

Study Region ◽

Climatic Indices ◽

Annual Water ◽

Annual Water Discharge

<p>In the Mediterranean, climate change and human pressures are expected to significantly impact surface water resources. We studied these impacts on the water discharge of six coastal drainage basins of the Gulf of Lions in southern France over the sixty-years period 1959-2018. Our approach was based on statistical analyses of hydrological, climate, land use and water management data. Results suggested that the annual water discharge of the six rivers studied can be predicted with high confidence by only two climatic indices, exclusively calculated from monthly temperature and precipitation data. This is a strong argument that climate is clearly the dominant driver of water discharge trends in the study region. These models also easily allow individual testing of the role of temperatures and precipitations on the evolution of annual water discharge. The latter decreased with about 30-45% in the study catchments over the 1959-2018 period and 25% can be attributed solely to the annual temperatures increase. Considering future projections of different climate models under a RCP 8.5 scenario, which depicts the strongest climatic changes, the annual water discharge could still decrease about 49-87% during the 2006-2100 period. For all models, we furthermore examined the relationships between the observed and simulated climatologies, our climatic indices and the large scale teleconnection patterns in order to better understand the spatial and temporal variabilities in the predicted water discharge series.</p>

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Assessing the impacts of climate change on water resources in the Srepok watershed, Central Highland of Vietnam

Journal of Water and Climate Change ◽

10.2166/wcc.2017.135 ◽

2017 ◽

Vol 8 (3) ◽

pp. 524-534 ◽

Cited By ~ 9

Author(s):

Nguyen Thi Huyen ◽

Le Hoang Tu ◽

Vo Ngoc Quynh Tram ◽

Duong Ngoc Minh ◽

Nguyen Duy Liem ◽

...

Keyword(s):

Climate Change ◽

Economic Development ◽

Water Resources ◽

Water Discharge ◽

Climate Change Scenarios ◽

The Third ◽

Central Highland ◽

Annual Water ◽

Annual Water Discharge ◽

Second Period

The Srepok watershed in the Central Highland of Vietnam plays an important role in the economic development of the region. Any harmful effects of climate change on natural resources may cause difficulties for social and economic development in this area. The present study aims to predict and evaluate changes of water resources in the Srepok watershed under the impact of climate change scenarios by using the soil and water assessment tool (SWAT) model. The study used observed weather data from 1990 to 2010 for the first period and climate change scenarios A1B and A2 from 2011 to 2039 for the second period and from 2040 to 2069 for the third period. According to the climate change scenarios of the studied watershed, future minimum and maximum daily average temperature will rise in all climate change scenarios and the amount of annual precipitation will fall in scenario A1B and go up in scenario A2. Based on the simulation results, the annual water discharge in scenario A1B decreased by 11.1% and 1.2% during the second and third periods, respectively, compared with the first. In scenario A2, annual water discharge increased by 2.4% during the second period but decreased by 1.8% during the third period.

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Impact of Climate Change on Water Resources in the Shiyang River Basin and the Adaptive Measures for Energy Conservation and Emission Reduction

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.405-408.2167 ◽

2013 ◽

Vol 405-408 ◽

pp. 2167-2171 ◽

Cited By ~ 1

Author(s):

Zhou Li ◽

Xiao Yan Li ◽

Juan Sun

Keyword(s):

Climate Change ◽

Surface Water ◽

Water Resources ◽

Energy Conservation ◽

Climate Change Impacts ◽

Warming Trend ◽

Annual Runoff ◽

Climate Scenarios ◽

Surface Water Resources ◽

Precipitation And Temperature

Climate is an important factor which formed and affected surface water resources. Through sensitivity analysis of natural runoff towards climate change, assuming the main factors effect runoff are precipitation and temperature, then according to the possible tendency of climate changes in the future, set climate scenarios, and use the hydrological model simulate the changes trend of runoff under different climate scenarios, thereby analyze the climate change impacts on surface water resources. The results show that annual runoff will be increased with the increasing annual precipitation, and it will be reduced with rise of annual temperature, the sensitivity that annual runoff towards the change of precipitation and temperature are equally notable, both of them are two major factors impact on the change of runoff and the precipitation change impacts on annual runoff will be even more obvious in flood season. Last, with the global warming trend, put forward the corresponding adaptive measures of energy conservation and emissions reduction。

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The assessment of surface water resources for the semi-arid Yongding River Basin from 1956 to 2000 and the impact of land use change

Hydrological Processes ◽

10.1002/hyp.7566 ◽

2010 ◽

Vol 24 (9) ◽

pp. 1123-1132 ◽

Cited By ~ 27

Author(s):

Lei Wang ◽

Zhongjing Wang ◽

Toshio Koike ◽

Hang Yin ◽

Dawen Yang ◽

...

Keyword(s):

Land Use ◽

Surface Water ◽

Water Resources ◽

Land Use Change ◽

River Basin ◽

Surface Water Resources ◽

The Impact ◽

Semi Arid ◽

Yongding River

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Impacts of Climate Change on Surface Water Resources of the Ziarat River Basin, Iran

Indian Journal of Science and Technology ◽

10.17485/ijst/2017/v10i24/112718 ◽

2017 ◽

Vol 10 (24) ◽

pp. 1-9

Author(s):

Seyed Hamed Shakib ◽

Hamid Shojarastegari ◽

◽

Keyword(s):

Climate Change ◽

Surface Water ◽

Water Resources ◽

River Basin ◽

Surface Water Resources ◽

Impacts Of Climate Change

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Do Recent Amendments to Alberta's Municipal Government Act Enable Management of Surface Water Resources and Air Quality?

Alberta Law Review ◽

10.29173/alr2484 ◽

2018 ◽

pp. 1009

Author(s):

Judy Stewart

Keyword(s):

Land Use ◽

Air Quality ◽

Surface Water ◽

Water Resources ◽

Municipal Government ◽

Growth Management ◽

Collaborative Governance ◽

Well Being ◽

Surface Water Resources ◽

Landscape Scales

Since 2015, new provisions have been added to Alberta’s Municipal Government Act (MGA) that arguably authorize municipalities to manage components of the environment, such as surface water resources and air quality at the local and regional geopolitical landscape scales. Since 2013, Part 17.1 enabled voluntary formation of “growth management boards” (GMBs) by two or more participating municipalities, and once appointed by the Minister, GMBs are empowered to create “growth plans” to govern growth-related land use decision-making processes within the boundaries of the participating municipalities. Part 17.1 was amended in 2016 and new regulations followed in 2017. City Charter provisions enacted in 2015 give broad governance powers to cities. MGA provisions that create both these new institutional arrangements do not preclude GMBs or cities from developing municipal environmental management objectives. Recent additional MGA amendments enacted as the Modernized Municipal Government Act (MMGA) in December 2016, and further amendments in the spring of 2017 added a preamble, defined “body of water” for the purposes of the MGA, provided for intermunicipal collaborative governance of land use, and amended the environmental reserve provisions and other regulatory aspects of Part 17: Planning and Development. Two new purposes of municipal government were added: “to work collaboratively with neighbouring municipalities to plan, deliver and fund intermunicipal services,” and “to foster the well-being of the environment.” In this article, amendments to the MGA since 2015 are examined and analyzed in light of Alberta’s regional watershed scale land use policy, legislation, and regulations to determine if Alberta municipalities are now authorized to manage the environment, specifically surface water resources and water quality.

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