Year: 2025
Collections: Scientific Publications
Topics: Water, IWRM
Authors: Gafurov A., Ziganshina Dinara, Assubayeva A., Nodir Djanibekov, Abdullaev Iskandar, Bobojonov Ihtiyor, Dombrowsky Ines, Hamidov Ahmad, Herrfahrdt-Pähle Elke, Janusz-Pawletta Barbara, Ishangulyyev Rovshen, Kasymov Ulan, Mirkasimov Bakhrom, Petrick Martin, Strobehn Katrin
Countries: Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan, Turkmenistan
Source: water-ca.org
Political tensions over water management in the Central Asia region have intensified since the Soviet era, as ecological issues like the drying Aral Sea and seasonal hydropower disruptions impact downstream countries. The paper discusses the region’s water governance challenges, including climate-induced uncertainties, water resource demands, and the limited capacity of local research institutions. While Central Asia’s governments have initiated reforms, including new infrastructure and agreements, resilience in water management remains underdeveloped. The paper also explores the role of higher education institutions in fostering capacity-building for sustainable governance, emphasizing the need for local expertise and regional collaboration. The proposed establishment of a Central Asian water research platform aims to enhance science-policy integration, promote sustainable water governance, and support informed regional cooperation on transboundary water issues.
Year: 2025
Collections: Scientific Publications
Topics: Water, Energy, Agriculture
Authors: Hamidov Ahmad, Bobocholov Asliddin, Sonoko Dorothea Bellingrath-Kimura
Countries: Uzbekistan
Source: water-ca.org
The water, energy, and food (WEF) nexus is being promoted as a conceptual idea for achieving sustainable development, that describes the interconnections and interdependencies between those three sectors. The main objective of this article is to operationalize the WEF nexus concept in lift-irrigated areas of Uzbekistan through involving local stakeholders, to investigate the WEF nexus within the lift-irrigated agriculture of the Kashkadarya region, an area heavily reliant on the Karshi Canal system. The study is grounded in the urgent need for sustainable development, with a focus on enhancing intersectoral cooperation between water, energy, and food sectors. A case study methodology was employed, incorporating semi-structured interviews with experts, alongside local farmers and scientists. Data were analysed using the qualitative analysis software, Atlas.ti. The results indicate significant challenges to intersectoral cooperation in the WEF nexus, including lack of trust, communication barriers, differing priorities, and insufficient political will. However, the findings also highlight the potential benefits of improved cooperation, such as enhanced resource efficiency, reduced operational costs, and mitigated risks from environmental stressors like drought. The study concludes that, according to stakeholders’ opinions, while the WEF nexus presents critical opportunities for advancing sustainable development in Uzbekistan, substantial barriers must be addressed to realize these benefits. Recommendations include promoting sustainable agriculture to reduce water dependency, improving energy security by diversifying energy sources, and raising awareness of the WEF nexus’s importance. Furthermore, fostering stronger stakeholder cooperation is crucial for achieving Uzbekistan’s Sustainable Development Goals (SDGs) by 2030.
Year: 2025
Collections: Scientific Publications
Topics: Climate
Authors: Наурозбаева Ж. К., Холопцев А.В.
Countries: Kazakhstan
Source: water-ca.org
Изучены особенности пространственной и временной изменчивости повторяемости атмосферных блокингов над территорией Казахстана в зимние месяцы, а также вариаций ее температурного режима для зимних месяцев. При обнаружении атмосферных блокингов в качестве фактического материала использована информация об изменениях над территорией Казахстана среднечасовых значений атмосферного давления, которые приведены к уровню моря, а также аналогичных значений геопотенциала, соответствующих изобарическим поверхностям 850, 500 и 300 гПа. При оценке влияния атмосферных блокингов на термический режим регионов Казахстана как фактический материал использованы результаты его мониторинга, проводившегося на расположенных в них метеостанциях Казгидромета, а также информация из архивов и электронных ресурсов. Предложена методика обнаружения атмосферных блокингов, обобщающая процедуры, которые традиционно используются для решения рассматриваемой задачи, что позволило снизить вероятности возникающих при этом ошибок. Для различных секторов территории Казахстана для всех зимних месяцев оценены средние значения повторяемости атмосферных блокингов за 1960–2020 гг., продолжительность которых не менее 5–10 суток, тенденции ее межгодовых изменений на отрезках времени, соответствующих различным частям современного климатического периода. Определены климатические нормы повторяемости таких блокингов для современного климатического периода и их изменения по отношению к базовому климатическому периоду (1961–1990 гг.). Также изучено влияние рассматриваемых атмосферных блокингов на термический режим различных регионов Казахстана, который характерен для зимних месяцев. Выявлены регионы Казахстана, где в периоды рассматриваемых атмосферных блокингов возникали наибольшие изменения их термического режима.
Year: 2025
Collections: Scientific Publications
Topics: Water, Climate
Authors: Thevs Niels, Aliev Kumar, Baier Clara
Countries: Kyrgyzstan
Source: water-ca.org
Recently, Paulownia spec. has been introduced to Central Asia in a number of small plantations. Paulownia yields timber of high quality for applications such as furniture, house construction, boat construction, and surf boards, or skis. Thus, Paulownia might offer a much-needed raw material for this region and beyond. However, Central Asia is largely occupied by drylands so that Paulownia needs irrigation. Against the background of frequent water stress across the region, this study aimed at assessing the water consumption and water productivity of that tree, using a 6-year-old plantation as study site. Trees were planted in May 2017 and cut back to their stumps in 2018. Daily crop evapotranspiration was calculated after the Penman-Monteith approach, whereby the crop coefficients were inherited from actual evapotranspiration values which stemmed from the remote sensing approach S-SEBI. Water consumption per tree was 1741 l, 4461 l, 4500 l, and 4407 l over the growing seasons 2020, 2021, 2022, and 2023, respectively. The water productivity for the stem wood over the whole time-span from planting in 2017 until 2023 was 1.59 g l-1 and 5.65 ml l-1. Given the high quality of its timber and its range of high-value applications, it can be concluded that the water consumed by Paulownia enables higher value timber and timber products than other trees that grow in comparable areas of Central Asia.
Year: 2024
Collections: Scientific Publications
Topics: Water
Authors: Esther Mbuci Kinyua, George William Atwoki Nyakairu, Emmanuel Tebandeke, Oghenekaro Nelson Odume
Countries: Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan, Turkmenistan, Afghanistan
Source: https://water-ca.org/
Efficient strategies are necessary to effectively remove microplastics (MPs), which are widely present in the environment. Among various techniques, photocatalysis using visible light has emerged as a promising ap-proach to tackle the growing concerns surrounding microplastic waste.
Year: 2024
Collections:
Topics: Climate, Sustainable Development
Authors: Aliya Tskhay, Nazilya Kulpeshova
Countries: Kazakhstan
Source: Central Asian Journal of Sustainability and Climate Research
Recycling is one of the key components in reduction of carbon emissions and improving environmental conditions, especially in the urban context. In Central Asia, the legislation and infrastructure necessary for waste management is still under development. Thus, the knowledge gap and public awareness campaigns are mostly done at the grassroots level. This paper looks at the case of recycling promotion through civic community initiatives that also have a charitable component in Almaty. It explores the ethical considerations that are being entangled with the introduction of recycling culture in the city and is grounded in the literature on civil society, environmental ethics and social entrepreneurship. The data was collected through semi-structured interviews with organizers of recycling fairs and NGOs working on recycling. The paper reveals that by appealing to the ethical considerations of people to “do good” and contribute to charitable cause, the organizers of the recycling fair also demonstrate the effects of over-consumerism, ways of doing waste management, and educate about reuse and upcycle culture. The single case of Darmarka in Almaty present a limitation of the study. Therefore, a more in-depth research on the organisation of Darmarka events in other cities in Kazakhstan and CIS, as well as on similar initiatives in other Central Asian countries would be beneficial in the future. This is an important contribution in understanding what challenges and opportunities exist in promotion of recycling in Central Asia, that can be useful to national governments, experts, and international organizations working in this area.
Year: 2024
Collections: Policy Briefs
Topics: Climate, Agriculture
Authors: Rieks Bosch
Countries: Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan, Turkmenistan
Source:
The fertility of soil is depending on the minerals
available, the structure of soil, organic matter
in soil, water availability and micro organisms
living in the soil. Together they determine most of the productivity of land.
Year: 2024
Collections: Scientific Publications
Topics: Water, Sustainable Development
Authors: Catalin Stefan, Jana Sallwey, Nurlan Ongdas, Mohammad Al-Hosban
Countries: Kazakhstan
Source: https://water-ca.org
MAR remains relatively underutilized in Central Asia despite its potential to address water scarcity issues, particularly those related to seasonal fluctuations in water availability. Thus, the objective of this study was to produce a map depicting the potential suitability of managed aquifer recharge (MAR) implementation in Kazakhstan. Employing a multi-criteria decision analysis framework, five distinct physical criteria were integrated and visualized within a Geographic Information System (GIS) to delineate the intrinsic potential for MAR. To demonstrate the practical utility of the generated map, it was applied to the Zhambyl region in Southern Kazakhstan, an area previously afflicted by water scarcity challenges. The intrinsic MAR potential map was overlaid with remote sensing data identifying potential water sources and water utilization patterns. This overlay facilitated the identification of priority areas with potential for further evaluation for MAR implementation. The map developed for Kazakhstan represents the first spatial representation of MAR potential within the region, serving to raise awareness regarding the feasibility of MAR application. It is anticipated that dissemination of this map will enhance understanding among water management professionals, potentially catalysing the integration of MAR methodologies into regional water management strategies.
Year: 2024
Collections: Scientific Publications
Topics: Water
Authors: Naurozbayeva Zhanar
Countries: Kazakhstan
Source: https://water-ca.org
The research aimed to assess the influence of atmospheric processes in the Northern Hemi-sphere’s Atlantic-European Sector on the Caspian Sea level based on the data for the days with Wangenheim-Girs atmospheric general circulation forms.
Year: 2024
Collections: Scientific Publications
Topics: Water, Climate
Authors: Aidar Zhumabaev, Hannah Schwedhelm, Beatrice Marti, Silvan Ragettli, Tobias Siegfried
Countries: Kazakhstan
Source: https://water-ca.org
The Badam River, a tributary to the Arys River located in the Syr Darya basin, is a crucial natural resource for ecological, social, and economic activities in the semi-arid region of southern Kazakhstan. The river basin is heavily influenced by manmade water infrastructure and faces water scarcity, particularly during summer, highlighting the importance of understanding its hydrological processes for effective water resource management. In this study, a semi-distributed conceptual hydrological model of the Badam River was implemented using the RS MINERVE hydrological software to evaluate the impacts of climate change on hydrology and to test the resilience of the water system. Connected HBV models were implemented for each of the hydrological response units that were defined as altitudinal zones. The hydrological model was calibrated using daily time steps between 1979 and 2011, and the resulting flow exceedance curves and hydrographs were used to assess the potential impacts of climate change on the basin, using CMIP6 precipitation and temperature scenarios. Future climate scenarios for the 2054 – 2064 period demonstrate that the peak discharge will be shifted to spring/late spring compared to the current early summer with no significant decrease in average discharge per day of the year. The insights gained from this hydrological-hydraulic model can be used to effectively manage the water system and inform future hydropower design decisions and serve as a blueprint for similar studies in the region and elsewhere.
Year: 2024
Collections: Scientific Publications
Topics: Water, Climate, Agriculture
Authors: Nazar Nurzoda
Countries: Tajikistan
Source: https://water-ca.org/
This study aimed to examine the efficiency of different drip irrigation regimes in spring film greenhouses for early tomato harvesting. The field (small-plot) experiment included designing and testing the watering technology suitable for rural Tajikistan. Irrigation, soil moisture, and tomato growth were followed for several seasons under four irrigation pilots. The experiments showed that the most effective drip irrigation regime for Elpida hybrid tomato was carrying it out while regulating soil moisture within 75-85%, with the irrigation demand of 4,978 m3/ha and irrigation norm of 99.0 m3/ha, also contributing to better water efficiency. The volume of irrigation water for the production of one unit of tomato crop in the second experiment was 5.73 m3/ha, i.e. 14.18% less than in the control plot. The study showed that the tomato evapotranspiration coefficient tends to increase as the threshold of soil mois-ture before and after irrigation grows. The maximum net yield amounted to 1,342 thou. Somoni/ha – 1.9 times or 52.7% higher compared to the control plot. The research findings can guide individual farmers and production facilities, as well as the overall development of agrarian economies like Tajikistan.
Year: 2024
Collections: Scientific Publications
Topics: Water
Authors: Nematullah Fetrat, Ahmad Reza Rostayee, Sai Kala
Countries: Afghanistan
Source: https://water-ca.org
The article investigates certain low-cost filtering materials and their filtration efficiency for open well sources in terms of economic access to clean water in Anakapalle, a suburb of Visa-khapatnam, India, during the pre-monsoon period of 2022. The corresponding research aimed to study a selection of filter materials including coconut shell activated carbon, rice husk ash, manganese modified sand, and graphene oxide, as well as assess their performance against selected physico-chemical parameters of water. Considering the basic idea of slow sand and gravity-based filtration, a setup was arranged with a cartridge filled with layers of filtering materials and a ceramic candle filter. Adsorption turned out the most pronounced removal mechanism that took place when utilizing the aforementioned filter materials. The main focus of the study was to reduce pH, TDS, hardness, alkalinity, chlorides and iron content by applying dif-ferent filtration removal mechanisms. The study results show a significant drop in turbidity, pH, TDS and chlorides, and small reduction in hardness when coconut shell activated carbon and rice husk ash were used as filtration media. Whereas the chemically coated medium – manga-nese modified sand – demonstrated a considerable fall in iron concentrations, graphene oxide sand was observed to reduce alkalinity for any sample source.
Year: 2024
Collections: Scientific Publications
Topics: Water
Authors: Azamat Madibekov, Laura Ismukhanova, Askhat Zhadi, Botakoz Sultanbekova, Serik Zhumatayev, Alibek Karimov, Sergei Fokin
Countries: Kazakhstan
Source: https://water-ca.org
The study was conducted in 2023 and comprised a comparative assessment of the state of Lake Markakol’s aquatic ecosystems in surface and bottom water strata. The analysis of bottom water temperatures showed correlation between this parameter and dissolved oxygen concentrations, indicating that pollution caused by organic impurities leads to lake eutrophication, in turn, pro-pelling the extinction of aquatic life. Although the main water physicochemical parameters of Markakol Lake correspond to the oligotrophic type, the shifts in dissolved oxygen and phos-phate content, as well as growth of aquatic vegetation indicate its transition to the mesotrophic type. Higher phosphate content in water is a consequence of pollution disturbing the biological balance, as well as stimulating the reservoir’s eutrophication and increased biological productivity, i.e. algal bloom. In addition, phosphate ions serve an informative indicator of Hazard Class 3 (organoleptically hazardous) anthropogenic pollution. Based on the correlation factor (r), two statistical models were considered for the target lake: 1) Water Pollution: nutri-ent concentrations depending on surface and bottom water temperatures (Model 1); and 2) changes in Water Pollution Indices (biogenic, heavy metals, mean) because of air temperature growth due to global warming of 0.25°C/decade (Model 2).
Year: 2024
Collections: Scientific Publications
Topics: Water
Authors: Шарахметов С., Бараков Р.Т., Исбеков К.Б., Нуртазин С.Т.
Countries: Kazakhstan
Source: https://water-ca.org
В статье приведены результаты изучения морфологической изменчивости сазана (Cyprinus carpio Linnaeus, 1758) в пределах трех крупных водоемов Балкаш-Алакольского бассейна – оз. Балкаш, оз. Алаколь и Капшагайского водохранилища. По трем выборкам сазана обнаружены морфологические различия по ряду признаков (счетные и пластические). При анализе внешних признаков были изучены 24 пластических и 14 счетных признаков. С применением метода обработки цифровых изображений (MorphoJ) проанализированы различия сазана по форме тела. Применение метода главных компонент (PCA) позволило определить основные нагрузки на изученные морфологические признаки сазана. Выявленные статистически достоверные различия позволяют говорить о том, что формирование морфологических изменений сазана было вызвано длительностью адаптивной радиации, средовыми факторами водоемов и ежегодным искусственным зарыблением молодью.
Year: 2024
Collections: Scientific Publications
Topics: Climate
Authors: Nina Miholjcic-Ivkovic
Countries: Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan, Turkmenistan
Source: Central Asian Journal of Sustainability and Climate Research
Central Asia is considered a region highly vulnerable to climate change impact and susceptible to climate-induced migration. Rural populations throughout the region are particularly at risk of experiencing adverse effects of climate variability and (im)mobility due to increased exposure to environmental hazards and distress that can severely affect agricultural productivity. This paper explores how climate change impacts migration trends in rural areas of Central Asia with an aim to contribute to the research on climate mobility in the region focusing on most vulnerable inhabitants. By examining the ongoing region's environmental degradation with increased aridity and retreating glaciers that affect local agriculture, water and food security, this paper suggests possible outcomes of such effects on rural mobility trends across five Central Asian countries.
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