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.
Year: 2024
Collections: Policy Briefs
Topics: Climate
Authors: Zhakenova Saltanat, Arsen Tleppayev, Nodir Djanibekov, Viktoriya Krylova
Countries: Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan, Turkmenistan
Source:
Universities and academia in Central Asia play a crucial role in addressing climate change impacts, including rising temperatures, diminishing water resources, and increased frequency of extreme weather events threatening agriculture and livelihoods. Academic efforts must prioritize research on tailored adaptation strategies to foster resilience and sustainability. However, there's an underrepresentation of climate change research from Central Asia, emphasizing the urgent need for expanded research efforts.
Year: 2024
Collections: Policy Briefs
Topics: Energy
Authors: Кобзев Алексей, Мануэль Андреш, Абылайхан Солтанаев, Нурбек Есетов
Countries: Kazakhstan
Source:
Энергетический переход продолжается с беспрецедентной скоростью и масштабом, требуя новых технологий с низким уровнем выбросов углерода. Зеленый водород рассматривается как часть решения для достижения декарбонизации промышленности, что потребует согласованных действий со стороны промышленности и правительства для того, чтобы Казахстан смог получить выгоды.
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, 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
Authors: Abdul Wahed Ahmadi, Sükrü Dursun
Countries: Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan, Turkmenistan, Afghanistan
Source: https://water-ca.org/
Aquatic plants, including duckweed (Lemna minor), are increasingly utilized in sewage and wastewater treat-ment to improve pollution parameters and organic matter removal.
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: Policy Briefs
Topics: Climate
Authors: Жакенова Салтанат, Тлеппаев Арсен, Джанибеков Нодир, Крылова Виктория
Countries: Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan, Turkmenistan
Source:
Университеты и академическое сообщество в Центральной Азии играют важнейшую роль в борьбе с последствиями изменения климата, включая повышение температуры, сокращение водных ресурсов и увеличение частоты экстремальных погодных явлений, угрожающих сельскому хозяйству и средствам к существованию. Приоритетным направлением академических усилий должны стать исследования стратегий адаптации, способствующих повышению устойчивости и стабильности. Однако, исследования в области изменения климата в Центральной Азии представлены недостаточно, что подчеркивает настоятельную необходимость расширения исследовательской деятельности
Year: 2024
Collections: Scientific Publications
Topics: Climate, Energy
Authors: Sergey Vassilyev, Galym Iskakov
Countries: Kazakhstan
Source: Central Asian Journal of Sustainability and Climate Research
The study aimed to evaluate the economic and financial viability of a coal mine methane (CMM) utilization project in Central Kazakhstan, demonstrating a methodology for similar initiatives. The analysis was based on the 2013 project proposed by the US Environmen-tal Protection Agency (EPA) that intended to capture methane emissions from six coal mines for electricity generation, yet was never implemented. The study’s relevance stems from Kazakhstan's 2030 methane pledge, recent progress in the country's climate change-related policy, mineworker mortality in 2023, and the shift of mines ownership. Building upon the technical specifications of the 2013 US EPA project, this research em-ployed standard financial and economic cost-benefit analysis (CBA). The financial model utilized a traditional discounted free cash flow approach, while the economic model in-corporated additional factors like the value of statistical life (VSL), shadow pricing, as well as benefits associated with mitigating ozone health impacts, crop damage, mine ex-plosion risks, and CO2 emissions. The economic model has indicated a positive net pre-sent value of $243 mln and 42% internal rate of return. The financial analysis also sug-gests potential profitability under fair electricity and carbon pricing market conditions. To assess project robustness under varying economic and financial assumptions, the study included a sensitivity analysis. The research has likewise leveraged prior CMM-related studies in Kazakhstan and provides valuable guidance for analyzing similar projects. In addition, it also highlights the need for certain adjustments in the current legislation to incentivize such projects, as well as to promote environmental sustainability and social development by mitigating methane emissions, which aligns with Kazakhstan's climate goals.
Year: 2024
Collections: Scientific Publications
Topics: Climate
Authors: Susan Legro
Countries: Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan, Turkmenistan
Source: Central Asian Journal of Sustainability and Climate Research
Countries in Central Asia, which are highly vulnerable to climate change, experience a variety of health-related impacts to which they must adapt. At the same time, climate mitigation interventions in the health sector in the form of reduced greenhouse gas (GHG) emissions may also generate co-benefits. This article briefly outlines current understanding of the relationship between climate change impacts and human health in Central Asia and establishes a scope of inquiry based on climate and health linkages as identified by the Intergovernmental Panel on Climate Change (IPCC). It then identifies and summarizes existing research and reporting on this topic in the region as presented in published literature, country reporting to the United Nations Framework Convention on Climate Change (UNFCCC), and gray literature, including policy literature and documentation of donor-funded development interventions in the region. This review, which attempts to summarize and appraise those efforts, has found that both peer-reviewed and grey literature on this topic must be used with caution. The most frequent problems with peer-reviewed and grey literature resources involved confounding bias, and—to a lesser extent—self-reporting bias. The use of an appraisal framework for grey literature sources can frame these diverse resources in the proper context, identify potential shortcomings, and gain insights into current priorities and future direction for research on climate change and health in the region.
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: 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
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, 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: Climate
Authors: Isaev E., Murata Akihiko, Shin Fukui, Roy C. Sidle
Countries: Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan, Turkmenistan, Afghanistan
Source: https://water-ca.org/
Climate change poses various challenges for agriculture and water management practices in Central Asia (CA). Central to these challenges are cryosphere dynamics, fragile mountain ecosystems, and ongoing natural hazards that highlight the need for robust projections of regional climate change. For the first time, dynamic downscaling was conducted in Central Asia at a spatial resolution of 5 km.
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