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Water saving based on moisture observations: scheduling drip irrigation regimes for tomatoes under greenhouse conditions in Tajikistan

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.


Climate change and health in Central Asia: a literature review

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.


The challenge of doing good: promotion of recycling in Almaty through civic community initiatives

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.


River basin recreational potential for rural tourism development in Aktobe region

Year: 2024

Collections: Scientific Publications

Topics: Water

Authors:

Countries: Kazakhstan

Source: https://water-ca.org/

The aim of the research was to analyze the climate comfort and assess the recreational potential of river basins for the development of rural tourism in Aktobe Region, Kazakhstan.


Assessment of lake Markakol’s physical and chemical condition with consideration of eutrofication

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).


Климатическая уязвимость в Центральной Азии: Университеты и актуализация политики

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


Водные истории из Туркестана: вызовы и возможности для Бадам-Сайрамской водной системы в условиях меняющегося климата

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.


Determinants of household energy use in the Fergana Valley

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.


Reflections on transboundary water conflict and cooperation trends

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.


Hydrogen production in Kazakhstan and Trans-Caspian Hydrogen Transportation

Year: 2024

Collections: Policy Briefs

Topics: Energy

Authors: Kobzev A., Manuel Andresh, Abylaikhan Soltanayev, Nurbek Yessetov

Countries: Kazakhstan

Source:


Mapping the potential for managed aquifer recharge in Kazakhstan

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.


Assessing the Efficiency and Role of Duckweed (Lemna Minor) in the Removal of Pollutants from Wastewater Treatment Plant Secondary Clarifier Tanks: A Comprehensive Review

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.


GIS technologies and modelling approaches for more sustainable management of natural resources

Year: 2024

Collections: Policy Briefs

Topics: Sustainable Development, Management

Authors: Usman Muhammad, Liebelt Peter, Catalin Stefan, Klara Dzhakypbekova

Countries: Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan, Turkmenistan

Source:

The question of suitable approaches and technologies for more effective and environmentally friendly management of natural resources has great relevance for the countries of Central Asia in the context of the UN Sustainable Development Goals. Despite the wide range of natural resources, Central Asia is still facing increasing land degradation and water scarcity. These problems are being accelerated by land-use pressure and climate change, which is particularly severe in Central Asia. The following recommendations are developed together with scientists from international projects on the use of GIS technologies and modelling approaches for more sustainable resource management.


HBV-modeling of the Ile Alatau mountain river flow

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.


Impact of climate change on migration trends in rural Central Asia

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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