Year: 2024
Collections: Policy Briefs
Topics: Energy
Authors: Kobzev A., Manuel Andresh, Abylaikhan Soltanayev, Nurbek Yessetov
Countries: Kazakhstan
Source:
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.
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: 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: 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: Scientific Publications
Topics: Energy
Authors: Hans Holzhacker, Botagoz Rakisheva
Countries: Kyrgyzstan, Uzbekistan, Tajikistan
Source: Central Asian Journal of Sustainability and Climate Research
In July-August, 2023, CAREC Institute, Public Opinion Research Institute, and Asian Development Bank Institute conducted a sociological survey on household energy use in the Fergana Valley spanning over the Kyrgyz Republic, Tajikistan, and Uzbekistan. The following article uses the data from that survey for investigating what determines the choice of different energy types for heating. The article concludes that high household expenditures for coal and high awareness of the harm fossil fuels can inflict on the environment and family health are insufficient to trigger a large-scale shift towards cleaner energy. To motivate households for such a shift a substantial increase in fossil fuel prices compared to electricity and other clean energy is required. This might call for a sales tax on coal. However, energy expenditure already accounts for up to one-third of household income. Low- and middle-income households would need to be compensated for increased energy spending to avoid social hardship and a backlash against such a tax.
Year: 2024
Collections: Scientific Publications
Topics: Water
Authors: Maiwand Omary, Mohammad Najim Nasimi, Mohammad Nasim Nasimi
Countries: Afghanistan
Source: https://water-ca.org
This study aimed to evaluate the suitability of Kabul Province’s groundwater for drinking by way of analyzing the data collected from 34 ground monitoring wells. The purpose was helped through the assessment of a set of groundwater physico-chemical parameters (pH, turbidity, total dissolved solids (TDS); sulfate, fluoride, nitrate, and boron content; total hardness (TH) as calcium carbonate, sodium, calcium, magnesium, and total iron), as well as the determination of the Water Quality Index (WQI) developed based on sampling the water points located in the districts of Kabul Province and Kabul City in the course of 3 years (2018 to 2020) to provide a clear and concise representation of water quality status, and cat-egorize groundwater into different quality classes ranging from “excellent” to “unsuitable for drinking”. Moreover, the spatial distribution of WQI and 12 physico-chemical parameter values was mapped using the Inverse Distance Weighted (IDW) Interpolation in Arcmap 10.7 environment, revealing distinct water quality patterns across the study area. The water qual-ity testing outcomes under this investigation show compliance of multiple water contaminant concentrations with the World Health Organization (WHO) Water Quality Guidelines and Afghanistan National Drinking Water Quality Standards (ANDWQS). The WQI values range between 27.5 and 112 (as per ANDWQS) and between 33 and 127.5 (as per WHO Guide-lines); the WQI (WHO) display 9% and WQI (ANDWQS) display 3% of groundwater unsuit-able for drinking. Spatial variation maps (IDW Interpolation) demonstate that turbidity, TDS, TH, and magnesium concentration values for the provinces’s central and eastern sec-tions exceed the permissible thresholds. The study’s findings underscore the need for target-ed groundwater management strategies, including pollution control and regular monitoring, to safeguard water quality and public health in Kabul Province.
Year: 2024
Collections: Scientific Publications
Topics: Water, Climate
Authors: Айдар Жумабаев, Ханна Шведхельм, Беатрис Марти, Сильван Раджеттли, Тобиас Зигфрид
Countries: Kazakhstan
Source: https://water-ca.org
Река Бадам, приток реки Арыс, входящая в состав Сырдарьинского бассейна, представляет собой важнейший природный ресурс для экологической и социально-экономической деятельности в зоне полузасушливого климата Южного Казахстана. Существенное влияние на речной бассейн оказывает искусственная водная инфраструктура. Бассейн также сталкивается с дефицитом воды, особенно летом, что подчеркивает важность понимания гидрологических процессов, происходящих в его границах, для эффективного управления водными ресурсами. В рамках настоящего исследования с целью оценки воздействия изменения климата на гидрологию и анализа устойчивости водной системы на базе гидрологического программного пакета RS MINERVE была создана полураспределенная концептуальная гидрологическая модель р. Бадам. Связанные модели HBV были реализованы для каждой из гидрологических единиц реакции, которые были определены как высотные зоны. Гидрологическая модель была откалибрована с использованием дневных временных интервалов за период с 1979 по 2011 гг. Полученные кривые вероятности превышения стока и гидрографы были использованы для оценки потенциального воздействия изменения климата на целевой бассейн с использованием сценариев осадков и температуры CMIP6. Будущие климатические сценарии на период 2054-2064 гг. указывают на смещение пикового стока на весенний/поздневесенний период по сравнению с текущим ранним летом без значительного снижения среднесуточного стока в течение года. Созданная гидрологико-гидравлического модель и результаты моделирования могут быть использованы для обеспечения эффективного управления водной системой и обоснования будущих гидроэнергетических проектов, а также могут служить основой для проведения аналогичных исследований в регионе и за его пределами.
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: 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, 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: Tillakarim T., Serikbay N., Satmurzayev A., Sairov S.
Countries: Kazakhstan
Source: water-ca.org
The research aimed to evaluate the possibility of applying the HBV model for assessing the flow of the Ile Alatau Mountain Range rivers. The main part of the corresponding water resources forms on the northern slopes of the Ile Alatau making them a significant water balance and water supply factor for the major cities of Almaty, Kaskelen, Talgar, and Yesik.
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: Scientific Publications, Review article
Topics: Water, Climate, Water governance
Authors: Susanne Schmeier, Alexandra Turgul, Melissa McCracken, Zoe H. Rosenblum, Lynette de Silva, Aaron T. Wolf
Countries:
Source: Water International, 49(3-4), 274-288
This article explores major findings and evolutions in understandings of transboundary water conflict and cooperation over the last three decades, focusing on the trends emerging from the Transboundary Freshwater Diplomacy Database. It is found that since the 1940s, countries tend to cooperate over shared water resources, in contrast to media portrayals of 'water wars'. Water conflicts, which have increased slightly since 2000, are mostly fuelled by water quantity disputes or unilateral infrastructure developments. Institutions play a role in facilitating cooperation and reducing conflict over shared waters, but their growth and adoption have slowed over the last few decades.
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.
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