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Assessment and Mapping of Water-Related Regulating Ecosystem Services in Armenia as a Component of National Ecosystem Accounting

Author

Listed:
  • Elena Bukvareva

    (Biodiversity Conservation Center, BCC-Armenia, Jrvezh 2224, Armenia)

  • Eduard Kazakov

    (NextGIS OÜ, 11213 Tallinn, Estonia)

  • Aleksandr Arakelyan

    (Institute of Geological Sciences, National Academy of Sciences of the Republic of Armenia, Yerevan 0019, Armenia)

  • Vardan Asatryan

    (Scientific Center of Zoology and Hydroecology, National Academy of Sciences of the Republic of Armenia, Yerevan 0014, Armenia)

Abstract

To promote sustainable development and guide the responsible use of natural ecosystems, the United Nations introduced the concept of ecosystem accounting. Ecosystem services are key components of ecosystem accounting. Water-related ecosystem services (ES) are of primary importance for Armenia due to relatively dry climate, and dependence on irrigation water for agriculture. This study aims to conduct a pilot-level quantitative scoping assessment and mapping of key water-related regulating ES in accordance with the SEEA-EA guidelines, and to offer recommendations to initiate their accounting in Armenia. We used three Integrated Valuation of Ecosystem Services and Trade-offs (InVEST) models—Seasonal Water Yield, Sediment Delivery Ratio, and Urban Flood Risk Mitigation. Input data for these models were sourced from global and national databases, as well as ESRI land cover datasets for 2017 and 2023. Government-reported data on river flow and water consumption were used to assess the ES supply–use balance. The results show that natural ecosystems contribute between 11% and 96% of the modeled ES, with the strongest impact on baseflow supply and erosion prevention. The average current erosion is estimated at 2.3 t/ha/year, and avoided erosion at 46.4 t/ha/year. Ecosystems provide 93% of baseflow, with an average baseflow index of 34%, while on bare ground it is only 3%. Changes in land cover from 2017 to 2023 have resulted in alterations across all assessed ES. Comparison of total water flow and baseflow with water consumption revealed water-deficient provinces. InVEST models show their general operability at the scoping phase of ecosystem accounting planning. Advancing ES accounting in Armenia requires model calibration and validation using local data, along with the integration of InVEST and hydrological and meteorological models to account for the high diversity of natural conditions in Armenia, including terrain, geological structure, soil types, and regional climatic differences.

Suggested Citation

  • Elena Bukvareva & Eduard Kazakov & Aleksandr Arakelyan & Vardan Asatryan, 2025. "Assessment and Mapping of Water-Related Regulating Ecosystem Services in Armenia as a Component of National Ecosystem Accounting," Sustainability, MDPI, vol. 17(17), pages 1-29, September.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:17:p:8044-:d:1743908
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    References listed on IDEAS

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    1. Lai, Tin-Yu & Salminen, Jani & Jäppinen, Jukka-Pekka & Koljonen, Saija & Mononen, Laura & Nieminen, Emmi & Vihervaara, Petteri & Oinonen, Soile, 2018. "Bridging the gap between ecosystem service indicators and ecosystem accounting in Finland," Ecological Modelling, Elsevier, vol. 377(C), pages 51-65.
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