Impact of climate change on the hydrology and water salinity in the Anzali Wetland, northern Iran

Naderi, Mostafa; Saatsaz, Masoud

doi:10.1080/02626667.2019.1704761

Cited by 24 publications

(14 citation statements)

References 59 publications

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“…Figure 5 illustrates climate change influence on the decline of precipitation across the AWW, relative to the base period. The results show that under climate scenarios SSP2-4.5 and SSP5-8.5 and intensified decline in participation can be expected, confirming the findings of 59 . The previous results under representative concentration pathway (RCP) scenarios of RCP2.6, RCP4.5, and RCP8.5 have demonstrated a decreasing trend in precipitation.…”

Section: Resultssupporting

confidence: 82%

“…Water coverage in the AWW has decreased due to the climate change impacts 59 and fluctuations in the water level of the Caspian Sea 1 . Due to an increase in the regional and national nutritional needs, the fertile lands around the wetland have been gradually converted to agricultural lands.…”

Section: Resultsmentioning

confidence: 99%

“…In addition, separation of bare land areas (without vegetation cover) and pasture zones (with a good vegetation cover), which are located on steep slopes in the AWW, could lead to more accurate results, especially for the sediment yield prediction. These important factors were not considered in the previous studies aimed to project the streamflow and sediment yield in the AWW 2,59 . The LCM results generated in this study reveal the Kappa coefficients of 0.89, 0.87, and 0.85 for the LULC maps in 2001, 2014, and 2020, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Modelling impacts of climate change and anthropogenic activities on inflows and sediment loads of wetlands: case study of the Anzali wetland

Mahdian

Hosseinzadeh

Siadatmousavi

et al. 2023

Sci Rep

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Understanding the effects of climate change and anthropogenic activities on the hydrogeomorpholgical parameters in wetlands ecosystems is vital for designing effective environmental protection and control protocols for these natural capitals. This study develops methodological approach to model the streamflow and sediment inputs to wetlands under the combined effects of climate and land use / land cover (LULC) changes using the Soil and Water Assessment Tool (SWAT). The precipitation and temperature data from General Circulation Models (GCMs) for different Shared Socio-economic Pathway (SSP) scenarios (i.e., SSP1-2.6, SSP2-4.5, and SSP5-8.5) are downscaled and bias-corrected with Euclidean distance method and quantile delta mapping (QDM) for the case of the Anzali wetland watershed (AWW) in Iran. The Land Change Modeler (LCM) is adopted to project the future LULC at the AWW. The results indicate that the precipitation and air temperature across the AWW will decrease and increase, respectively, under the SSP1-2.6, SSP2-4.5, and SSP5-8.5 scenarios. Streamflow and sediment loads will reduce under the sole influence of SSP2-4.5 and SSP5-8.5 climate scenarios. An increase in sediment load and inflow was observed under the combined effects of climate and LULC changes, this is mainly due to the projected increased deforestation and urbanization across the AWW. The findings suggest that the densely vegetated regions, mainly located in the zones with steep slope, significantly prevents large sediment load and high streamflow input to the AWW. Under the combined effects of the climate and LULC changes, by 2100, the projected total sediment input to the wetland will reach 22.66, 20.83, and 19.93 million tons under SSP1-2.6, SSP2-4.5, and SSP5-8.5 scenarios, respectively. The results highlight that without any robust environmental interventions, the large sediment inputs will significantly degrade the Anzali wetland ecosystem and partly-fill the wetland basin, resulting in resigning the wetland from the Montreux record list and the Ramsar Convention on Wetlands of International Importance.

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Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Modelling impacts of climate change and anthropogenic activities on inflows and sediment loads of wetlands: case study of the Anzali wetland

Mahdian

Hosseinzadeh

Siadatmousavi

et al. 2023

Sci Rep

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“…Our findings demonstrated that the rainfall and salinity of soil curves followed a nearly identical pattern. The result is plausible, as rainfall reduces groundwater uses for irrigation and minimized the saltwater intrusion risk in freshwater aquifers (Naderi and Saatsaz, 2020; Fichez et al , 2017).…”

Section: Discussionmentioning

confidence: 99%

Drivers of climate variability and increasing water salinity impacts on the farmer’s income risk with future outlook mitigation

Khan

Khan²,

Ali³

et al. 2022

IJCCSM

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Purpose The main aim of this study is to investigate the impact of climate change and water salinity on farmer’s income risk with future outlook mitigation. Salinity and climate change are a threat to agricultural productivity worldwide. However, the combined effects of climate change and salinity impacts on farmers' income are not well understood, particularly in developing countries. Design/methodology/approach The response-yield function and general maximum entropy methods were used to predict the impact of temperature, precipitation and salinity on crop yield. The target minimization of total absolute deviations (MOTAD)-positive mathematical programming model was used to simulate the impact of climate change and salinity on socioeconomic and environmental indicators. In the end, a multicriteria decision-making model was used, aiming at the selection of suitable climate scenarios. Findings The results revealed that precipitation shows a significantly decreasing trend, while temperature and groundwater salinity (EC) illustrate a significantly increasing trend. Climate change and EC negatively impact the farmer's income and water shadow prices. Maximum reduction in income and water shadow prices was observed for A2 scenario (−12.4% and 19.4%) during 2050. The environmental index was the most important, with priority of 43.4% compared to socioeconomic indicators. Subindex amount of water used was also significant in study area, with 28.1% priority. The technique for order preference by similarity to ideal solution ranking system found that B1 was the best climatic scenario for adopting climate change adaptation in the research region. Originality/value In this study, farmers' income threats were assessed with the aspects of different climate scenario (A1, A1B and B1) over the horizons of 2030, 2040 and 2050 and three different indicators (economic, social and environmental) in Northwestern region of Pakistan. Only in arid and semiarid regions has climate change raised temperature and reduced rainfall, which are preliminary symptoms of growing salinity.

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“…Another study reported high levels of arsenic in surface water and 2–4 times the amount, in drinking water in Bangladesh, with respect to the average eligible standards [ 92 ]. The problem of salinity and hypertension will be exacerbated in the future among people living in coastal areas due to the high intake of sodium through drinking water [ 93 , 94 ].…”

Section: Methodology and Reviewmentioning

confidence: 99%

Climate Change, Water Quality and Water-Related Challenges: A Review with Focus on Pakistan

Ahmed

Zounemat‐Kermani

Scholz

2020

IJERPH

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Climate variability is heavily impacting human health all around the globe, in particular, on residents of developing countries. Impacts on surface water and groundwater resources and water-related illnesses are increasing, especially under changing climate scenarios such as diversity in rainfall patterns, increasing temperature, flash floods, severe droughts, heatwaves and heavy precipitation. Emerging water-related diseases such as dengue fever and chikungunya are reappearing and impacting on the life of the deprived; as such, the provision of safe water and health care is in great demand in developing countries to combat the spread of infectious diseases. Government, academia and private water bodies are conducting water quality surveys and providing health care facilities, but there is still a need to improve the present strategies concerning water treatment and management, as well as governance. In this review paper, climate change pattern and risks associated with water-related diseases in developing countries, with particular focus on Pakistan, and novel methods for controlling both waterborne and water-related diseases are discussed. This study is important for public health care, particularly in developing countries, for policy makers, and researchers working in the area of climate change, water quality and risk assessment.

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Impact of climate change on the hydrology and water salinity in the Anzali Wetland, northern Iran

Cited by 24 publications

References 59 publications

Modelling impacts of climate change and anthropogenic activities on inflows and sediment loads of wetlands: case study of the Anzali wetland

Modelling impacts of climate change and anthropogenic activities on inflows and sediment loads of wetlands: case study of the Anzali wetland

Drivers of climate variability and increasing water salinity impacts on the farmer’s income risk with future outlook mitigation

Climate Change, Water Quality and Water-Related Challenges: A Review with Focus on Pakistan

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