Seasonal Partitioning of Rainfall in Second-Growth Evergreen Temperate Rainforests in Chiloé Island, Southern Chile

Rainfall partitioning in secondary forests from southern Chile is relevant in the climate change scenario, in which a 30% reduction in summer precipitation has been projected for the temperate region. Logging and degradation of old-growth forests has resulted in extensive secondary forests, over large areas of the Chiloé Archipelago as well as the mainland. These secondary forests are simple tree communities, dominated by two broad-leaved tree species, evergreen Drimys winteri and Nothofagus nitida, and have the potential to provide multiple benefits to society, including water provision, soil protection, and wood-derived products. Here, we ask how southern South American secondary rainforests modulate rainwater redistribution considering precipitation partitioning. We evaluated the seasonality of throughfall and stemflow components of precipitation, to assess ecohydrological processes for water regulation in a climate change context, where summer droughts have been more frequent in the last decade. The partitioning of gross rainfall (TP) into throughfall (TH), stemflow (ST), and canopy interception (IN) in relation to forest structure, was assessed in four forest plots (400 m2 each) in Senda Darwin Biological Station, Chiloé. TH and ST were measured seasonally for 35 rainfall events from 2019 to 2021. IN water losses were estimated from the mass balance equation. Results indicate that the secondary rainforest intercepts 33% of TP (990 mm of the total monitored), where 59% of the volume corresponds to TH and 7% to ST, which taken together account for nearly 100% the rainwater that reaches the forest floor. Canopy IN varied seasonally from 25 to 40% of total rainfall, with maximum values occurring in the growing season (spring-summer). We found no statistical relation between ST and forest structural parameters (DBH, Basal Area). We explored the contribution of the two dominant tree species to ST and discuss the results in a climate change context. Finally, we propose to incorporate this hydrologic knowledge into adaptive forest management strategies to maximize ecosystem benefits to people. If these ecosystems were properly managed, they have the potential to provide multiple benefits to society within this century, such as water provision and soil protection in addition to carbon sequestration in biomass.

A qualitative study of barriers and facilitators to adequate environmental health conditions and infection control for healthcare workers in Malawi

The burden of healthcare-associated infections (HAIs) is greater in low- and middle-income countries than in high-income countries. Inadequate environmental health (EH) conditions and work systems contribute to HAIs in countries like Malawi. We collected qualitative data from 48 semi-structured interviews with healthcare workers (HCWs) from 45 healthcare facilities (HCFs) across Malawi and conducted a thematic analysis. The facilitators of infection prevention and control (IPC) practices in HCFs included disinfection practices, patient education, and waste management procedures. HCWs reported barriers such as lack of IPC training, bottlenecks in maintenance and repair, hand hygiene infrastructure, water provision, and personal protective equipment. This is one of the most comprehensive assessments to date of IPC practices and environmental conditions in Malawian HCFs in relation to HCWs. A comprehensive understanding of barriers and facilitators to IPC practices will help decision-makers craft better interventions and policies to support HCWs to protect themselves and their patients.

Ecosystem Services from Ecological Agroforestry in Brazil: A Systematic Map of Scientific Evidence

(1) Brazil has great potential to expand the area under agroforestry, and thereby simultaneously enhance multiple ecosystem services. However, divergent interests are currently polarized between drastic environmental deregulation and public resource allocation to chemical-intensive land use versus conservation and sustainable agriculture. This highlights an urgent need for a comprehensive overview of the evidence of the benefits to society generated by agroforestry across Brazil. (2) We present a systematic map of the scientific evidence related to the effects of agroforestry on ecosystem services in Brazil. (3) Reviewing 158 peer-reviewed articles, published in international scientific journals (database: Web of Science), we identified a disproportionate emphasis on the Atlantic Forest. Very little research has been published on the Cerrado savanna, Pampa grasslands and Pantanal wetlands. Regulating services were much more frequently studied (85%) than provisioning (13%), while cultural services represent a major gap. A consistent positive effect of agroforestry was demonstrated for soil quality, habitat and food provisioning. Trade-offs were demonstrated for soils and habitats. (4) Our analysis identifies high-priority gaps given their critical importance for human well-being which should be filled: agroforestry effects on water provision and regulation. Moreover, they should assess other ES such as erosion control, flood protection and pest control to enable a more reliable inference about trade-offs.

Equitable Access to Water at Alfred Duma Local Municipality

Water plays a central role in the life of society. However, factors such as population growth, pollution, and poor allocation and distribution mechanisms place severe pressures on adequate and equitable water supply. The aim of this chapter was to look into equitable water access in the Alfred Duma Local Municipality as well as the ecological governance framework that supports water access in local areas. The chapter also looked at the position of local municipality in water access and the impact of ecological scale on water provision. Many people are still unable to exercise their constitutional right to water in Alfred Duma Local Municipality, where most women feel disempowered, marginalized, and excluded from the process of making water access decisions. This brings challenges to disadvantaged and arginalized groups socially, economically, and environmentally where vulnerable and marginalised groups have no opportunity to equitably benefit from water access.

A Path Analysis to Identify Factors Influencing the Provision of Water in Addition to Breast Milk by Mothers of Infants under Six Months of Age in Conakry and Kindia Regions, Republic of Guinea

Water provision to infants under six months of age (IU6M) can hamper exclusive breastfeeding (EBF). Understanding factors and their relationships influencing this practice is needed to tailor EBF promotion programs. Using a validated questionnaire, this study aims to identify pathways in which individual factors and the environment interact to affect the provision of water in addition to breast milk among 300 mothers of IU6M. Our finding shows that 75% of mothers intended to provide water in addition to breast milk to their IU6M and that about 60% reported doing it. Results of the final path show that the subjective norm/SN (β = 0.432, p < 0.001), the attitude (β = 0.349, p < 0.001), and to a lesser extent the perceived control/PC (β = 0.141, p = 0.005) predict the intention of mothers to provide water in addition to breast milk to their IU6M. The environment scores predict the attitude (β = 0.210, p = 0.001) and the SN (β = 0.284, p < 0.001). Having the mother practicing early breastfeeding initiation at birth positively predicted the PC score (β = 0.157, p = 0.017) and predicted an increasing score of SN (β = 0.221, p = 0.003). Even though predicting the final behavior is complex, this research provides directions to nutrition education programs to tailor their content to the context and be more efficient in reducing the proportion of women providing water to their IU6M, hence contributing to the improvement of EBF.

Guest Houses, Drought and Water Management Strategies in the Cape Winelands, South Africa

Tourism is a dynamic system essentially connected to all aspects of human and natural environments. Among these tourism systems and products, providers of tourist accommodation stand out. Within this context, water provision is crucial for tourist accommodation. Unfortunately, climate variability, and therefore, water availability, can and does impact tourism systems and tourism products, perhaps disproportionately so. In South Africa generally, and in an established tourism destination region such as the Cape Winelands in particular, guest houses are key role-players in the tourist industry. Nonetheless, from 2015 to 2018, this destination region experienced a crippling long-lasting drought, leading to fears of an imminent “Day Zero” – a point at which taps run dry. This would have been calamitous for tourism. To avert this, various water management strategies were implemented by Stellenbosch guest houses – the focal point of the Cape Winelands tourism region – to cope with and adapt to the drought. This study sought to examine the water management strategies manifested in the study region. It is concluded that various strategies were followed, and some appear to be permanent, rather than once-off responses. While these strategies might lead to more responsible water management strategies in tourist accommodation going forward, it appears that adopting sustainable water use practices was only done under duress and serious resistance from some guests resulted. It may be that water supply augmentation is the only way to preserve the tourism industry.

Solar-powered water systems for vulnerable rural communities: Alleviating water scarcity in Iraq

Deteriorating water quality and decreasing water quantity are causing a water crisis in Iraq. The crisis is having a profoundly negative impact on people's livelihoods and on the economy. In the most water-stressed areas, vulnerable people have had to move from rural areas where water is scarce to urban areas, placing additional pressure on the water supply. To mitigate the impact of water scarcity on the most vulnerable people in rural areas, the United Nations Children's Fund has worked in partnership with the Iraqi Water Authorities on a programme to increase access to more resilient water services in some highly vulnerable rural and conflict affected areas of Iraq where water services are unreliable. One major contributing factor to the problem of access to water was the unreliability of the electrical supply, particularly in the summer months. The programme identified that an alternative to grid electrical power was needed to achieve a more reliable source of energy for water provision. The programme installed solar-powered water systems in two vulnerable districts in northern Iraq: Shekhan district, Ninewa, and Makhmur, Erbil. These systems are now providing sustainable, predictable and reliable water services to two vulnerable districts which had previously suffered extensively from power shortages and service interruptions. The water from the new solar-powered systems provides access to safe water for refugees and internally displaced people, as well as local communities. Importantly, the programme has increased water conservation and efficiency and helped to strengthen community resilience. It has also highlighted the need for adaptive and innovative technological solutions, which can support more effective disaster response and recovery.

Comparing Experiences of Constitutional Reforms to Enshrine the Right to Water in Brazil, Colombia, and Peru: Opportunities and Limitations

In this paper we compare recent efforts towards the constitutionalization of the right to water in Brazil, Colombia, and Peru to understand the opportunities and limitations related to the attempts to enhance access to piped water to the highest normative level. Peru passed a constitutional amendment in 2017 while Brazil and Colombia have seen much right-to-water activism but have not succeeded in passing such reforms. We explore the role of the existing domestic legal frameworks on drinkable water provision and water management towards the approval of constitutional amendments. We find that all three countries have specialized laws, water governing institutions, and constitutional jurisprudence connecting access to water with rights, but the legal opportunity structures to enforce socio-economic rights vary; they are stronger in Colombia and Brazil, and weaker in Peru. We argue that legal opportunity structures build legal environments that influence constitutional reform success. Legal opportunity structures act as incentives both for social movements to push for reforms and for actors with legislative power to accept or reject them. Our findings also show that in some contexts political cost is a key element of constitutional reforms that enshrine the right to water; therefore, this is an element that should be considered when analyzing these processes.

Evaluation of Water Provision Ecosystem Services Associated with Land Use/Cover and Climate Variability in the Winike Watershed, Omo Gibe Basin of Ethiopia

The provision of freshwater is essential for sustaining human life. Understanding the water provision modelling associated with the Land Use/Cover (LUC) change and climatic factors is vital for landscape water resource management. The Winike watershed is the largest tributary in the upper Omo Gibe basin of Ethiopia. This research aims to analyze the spatial and temporal change in the water yield to investigate the water yield contribution from the watershed based on the variation in input parameters. The Integrated Valuation of Ecosystem Services and Tradeoffs Tool (InVEST) water yield model was used to evaluate the spatial and temporal variation of the water yield in different years (1988, 1998, 2008 and 2018). The data required for this model include LUC data from satellite images, reference evapotranspiration, root depth, plant available water, precipitation, season factor (Z), and a biophysical table. The analysis of LUC change shows a rapid conversion of grazing land, shrubland, and forest land into cultivated land. There has been a significant variation in water provision, which increased from 1.83 × 109 m3 in 1988 to 3.35 × 109 m3 in 2018. Sub-watersheds 31, 32, and 39 in the eastern part of the watershed contributed more water due to higher precipitation and lower reference evapotranspiration. The major increase in the contribution of water yield was in built-up land by 207.4%, followed by bare land, 148.54%, and forest land by 63%. Precipitation had a greater impact on water yield estimation compared with the other input parameters. Hence, this research helps decision-makers to make informed decisions regarding new policies for LUC change improvement to maintain the water resources in the Winike watershed.