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  1. Article ; Online: Can river flow prevent land subsidence in urban areas?

    Sharifi, Alireza / Khodaei, Behshid / Ahrari, Amirhossein / Hashemi, Hossein / Torabi Haghighi, Ali

    The Science of the total environment

    2024  Volume 917, Page(s) 170557

    Abstract: Land subsidence, a silent death, occurs due to various factors like significant reduction in groundwater (GW) levels. It is a widespread phenomenon with irreparable consequences on buildings, infrastructures, and, in severe cases, groundwater aquifers. ... ...

    Abstract Land subsidence, a silent death, occurs due to various factors like significant reduction in groundwater (GW) levels. It is a widespread phenomenon with irreparable consequences on buildings, infrastructures, and, in severe cases, groundwater aquifers. This study aims to assess the impact of river flow on the acceleration and control of land subsidence in an arid and semi-arid region. To achieve this goal, we analyze the interconnection between GW and SW and investigate the role of the Zayandeh-Rud River's drying up on land subsidence in the Isfahan-Borkhar aquifer in Iran's central plateau. To facilitate this assessment, we utilize the Interferometric Synthetic Aperture Radar (InSAR) technique to estimate the vertical deformation velocity of the aquifer (average land subsidence rate). The results show that the Isfahan-Borkhar aquifer has experienced a significant annual decline of more than 25 m, with an alarming rate exceeding 0.8 m/year. Our analysis of 31 piezometric wells (P-Wells) from 2000 to 2022 reveals a downward monotonic (in 16 P-Wells) and nonmonotonic (in 12 P-Wells) trend in groundwater table changes. Moreover, the GW table in the P-Wells near the river depends entirely on river flow. Furthermore, our findings indicate that river regulation exerts a dominant role in the control of land subsidence. Consequently, when water flows in the Zayandeh-Rud River, the rate of land subsidence declines significantly, particularly in urban regions. Therefore, maintaining a constant flow of water in the river can prevent or reduce ongoing land subsidence in Isfahan.
    Language English
    Publishing date 2024-02-01
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2024.170557
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Environmental flow assessment for intermittent rivers supporting the most poleward mangroves.

    Baubekova, Aziza / Ahrari, Amirhossein / Etemadi, Hana / Klöve, Björn / Haghighi, Ali Torabi

    The Science of the total environment

    2023  Volume 907, Page(s) 167981

    Abstract: The most vulnerable and dynamic ecosystems in terms of response to climate change and fluctuations in hydrological conditions are mangroves, particularly those located on the edge of their latitudinal range limits. The four primary Iranian mangrove ... ...

    Abstract The most vulnerable and dynamic ecosystems in terms of response to climate change and fluctuations in hydrological conditions are mangroves, particularly those located on the edge of their latitudinal range limits. The four primary Iranian mangrove forest sites: Nayband, Qeshm, Gabrik, and Govatr, located in the northern part of the Persian Gulf and the Gulf of Oman already exist near the limit of their tolerance to extreme temperature, precipitation, and salinity. Due to extreme climate conditions at these locations, the mangrove trees are usually smaller and less dense as compared with mangroves closer to the equator complicating their monitoring and mapping efforts. Despite the growing attention to the ecological benefits of mangrove forests and their importance in climate change mitigation, there are still a few studies on these marginal mangroves. Therefore, we investigated whether the variation in mangrove ecosystem health is related to the changes in physical parameters and differs between estuarine and sea-side locations. We developed a comprehensive database on NDVI values, associated rainfall, temperature, and river flow based on in-situ and remote sensing measurements. By understanding the normal hydrologic patterns that control the distribution and growth of mangroves in arid and semi-arid regions, we are questioning the need for environmental flow allocation to restore mangrove ecosystem health. This brings us to the second gap in the literature and the need for further studies on Environmental Flow assessment for intermittent and ephemeral rivers. Alike other mangroves studied, forests showed greenness seasonality, positively correlated with rainfall, and negatively correlated with temperature. As there was no clear difference between estuarine and marine sites, freshwater influence in the form of river flow, unlike temperature, cannot be considered a major limiting factor. Nevertheless, during prolonged droughts mangroves could benefit from the recommended allocation of Environmental Flow during the cold period (November-March).
    MeSH term(s) Ecosystem ; Rivers ; Iran ; Wetlands ; Forests
    Language English
    Publishing date 2023-10-20
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.167981
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Effect of long-term climate signatures on regional and local potato yield in Finland

    Ghag, Kedar Surendranath / Ahrari, Amirhossein / Panchanathan, Anandharuban / Mustafa, Syed M.T. / Liedes, Toni / Klöve, Björn / Haghighi, Ali Torabi

    Smart Agricultural Technology

    2024  Volume 7

    Abstract: This research study investigates the impact of air temperature and precipitation on annual potato crop yield in Finland region and a local area in northern Finland. For this, the annual crop yield data of regional and local case study area is processed ... ...

    Abstract This research study investigates the impact of air temperature and precipitation on annual potato crop yield in Finland region and a local area in northern Finland. For this, the annual crop yield data of regional and local case study area is processed using Z-score normalization technique. Classification of computed z-score values was carried out into different classes ranging between the most beneficial crop yield year and the most vulnerable crop yield year. Later, the detection of feasible potato cropping season at monthly and daily scale was carried out using different weather parameters. Further, long-term trend analysis using Mann-Kendall's approach at annual, seasonal, and monthly scales was carried out using 60 years of dataset of both case study areas. Then after, the comparative analysis of annual crop yield and the characteristics obtained within climate data using different statistical approaches at annual, seasonal, and monthly scale. Finally, multivariate analysis was carried out to find most influential climate variables obtained using different statistical signatures. The results shows that, over the 100 years of period the annual potato crop yield of regional case study area shows a rising trend with declining area under potato crop. Classification approach found 16 % annual yield scored lowest Z-score while, 18% the highest. Likewise, 20 years of data for the local case study area found that 25 % of the dataset scored the highest Z-score and 15 % of the dataset values scored the lowest. Long-term trend analysis of air temperature shows significant increasing trend annually, seasonally and for monthly during the months between July-September. Whereas, similar procedure with the precipitation data showed increasing trend only at annual scale with the precipitation data analysis. During the comparative analysis between the annual crop yield data based on z-score classification and different statistical results obtained from weather parameters such as variation of precipitation and temperature ...
    Keywords Agriculture ; Climate variability ; Finland ; Growing degree days ; Mann-Kendall test ; Multivariate ; Nordics ; Potato yield ; Rainfall ; Temperature effects ; Z-normalization
    Subject code 333
    Language English
    Publishing country nl
    Document type Article ; Online
    ISSN 2772-3755
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article: Factors affecting the presence of Arctic charr in streams based on a jittered binary genetic programming model

    Danandeh Mehr, Ali / Erkinaro, Jaakko / Hjort, Jan / Torabi Haghighi, Ali / Ahrari, Amirhossein / Korpisaari, Maija / Kuusela, Jorma / Dempson, Brian / Marttila, Hannu

    Ecological indicators. 2022 Sept., v. 142

    2022  

    Abstract: Arctic charr is one of the fish species most sensitive to climate change but studies on their freshwater habitat preferences are limited, especially in the fluvial environment. Machine learning methods offer automatic and objective models for ... ...

    Abstract Arctic charr is one of the fish species most sensitive to climate change but studies on their freshwater habitat preferences are limited, especially in the fluvial environment. Machine learning methods offer automatic and objective models for ecohydrological processes based on observed data. However, i) the number of ecological records is often much smaller than hydrological observations, and ii) ecological measurements over the long-term are costly. Consequently, ecohydrological datasets are scarce and imbalanced. To address these problems, we propose jittered binary genetic programming (JBGP) to detect the most dominant ecohydrological parameters affecting the occurrence of Arctic charr across tributaries within the large subarctic Teno River catchment, in northernmost Finland and Norway. We quantitatively assessed the accuracy of the proposed model and compared its performance with that of classic genetic programming (GP), decision tree (DT) and state-of-the-art jittered-DT methods. The JBGP achieves the highest total classification accuracy of 90% and a Heidke skill score of 78%, showing its superiority over its counterparts. Our results showed that the dominant factors contributing to the presence of Arctic charr in Teno River tributaries include i) a higher density of macroinvertebrates, ii) a lower percentage of mires in the catchment and iii) a milder stream channel slope.
    Keywords Salvelinus alpinus ; climate change ; data collection ; decision support systems ; fish ; freshwater ; habitats ; hydrologic cycle ; macroinvertebrates ; models ; rivers ; stream channels ; watersheds ; Finland ; Norway
    Language English
    Dates of publication 2022-09
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2036774-0
    ISSN 1872-7034 ; 1470-160X
    ISSN (online) 1872-7034
    ISSN 1470-160X
    DOI 10.1016/j.ecolind.2022.109203
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Smart drainage management to limit summer drought damage in Nordic agriculture under the circular economy concept

    Mustafa, Syed Touhidul / Ghag, Kedar / Panchanathan, Anandharuban / Dahal, Bishal / Ahrari, Amirhossein / Liedes, Toni / Marttila, Hannu / Avellán, Tamara / Oussalah, Mourad / Klöve, Björn / Haghighi, Ali Torabi

    Hydrological Processes

    2022  Volume 36, Issue 6

    Keywords Life Science
    Language English
    Publishing country nl
    Document type Article ; Online
    ZDB-ID 1479953-4
    ISSN 1099-1085 ; 0885-6087
    ISSN (online) 1099-1085
    ISSN 0885-6087
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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