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Towards the harmonization of global environmental flow estimates: comparing the Global Environmental Flow Information System (GEFIS) with country data

December, 2023
Global

The source of data used to estimate the e-flow requirement in Sustainable Development Goal (SDG) Indicator 6.4.2 (level of water stress: freshwater withdrawal as a proportion of available freshwater resources) is the Global Environmental Flow Information System (GEFIS), an online tool produced and managed by the International Water Management Institute (IWMI).

How Useful? Fish-Friendly Irrigation Guidelines for the Lower Mekong Lack Definition in Five Key Areas

December, 2023
Global

A proliferation of irrigation infrastructure throughout the Mekong River has impacted the ability of certain fish species to migrate to fulfil their lifecycle. In response, fishways, a type of fish-friendly irrigation structure, have been developed to provide passage for these fish. In recent years, several guidelines documents providing guidance on fish-friendly irrigation structures and their construction have been published. The development process from guideline inception to publication is unclear, while their purpose, audience, and contribution to fishway practice are vague.

Risks from solar-powered groundwater irrigation: Emissions reductions may not meet expectations, and groundwater use will likely increase

December, 2023
Global

Solar-powered groundwater irrigation is expanding exponentially in low- and middle-income countries (LMICs), creating opportunities and risks. In South Asia, more than 500,000 small stand-alone pumps have already been installed (see the figure). In Sub-Saharan Africa, solar pumps are gaining traction to expand food production and alleviate poverty.

Closing the data gap: A model for national-level food loss and waste data generation in the absence of existing data

December, 2023
Global

In the UN many countries committed themselves to reduce FLW towards 20301. So-called national pathways are developed, written by governments, elaborating on how this will be established. In order to support and validate these efforts, FLW monitoring2 is required on national level. This is a complex task for LMIC, since it is difficult to get data from rural and remote areas. In addition, the variety in products, supply chain links (SCLs), climatic conditions (weather, water, soil) increases the workload of any monitoring approach dramatically.

Fate and transport modelling for evaluating antibiotic resistance in aquatic environments: Current knowledge and research priorities

December, 2023
Global

Antibiotics have revolutionised medicine in the last century and enabled the prevention of bacterial infections that were previously deemed untreatable. However, in parallel, bacteria have increasingly developed resistance to antibiotics through various mechanisms. When resistant bacteria find their way into terrestrial and aquatic environments, animal and human exposures increase, e.g., via polluted soil, food, and water, and health risks multiply.

New podcast explores policy coherence and system transformation in food, land and water

December, 2023
Global

Overcoming future sustainable development challenges will require significant transformations in food, land, and water systems. However, the challenges faced by countries are varied and complex. Produced by IWMI, the Policy Pathways podcast will examine the policy coherence of food, land, and water systems in six of the CGIAR’s National Policies and Strategies Initiative countries.

Gender norms and social transformation of agriculture in Sub-Saharan Africa

December, 2023
Global

There is a paucity of scientific information regarding gender norms and social transformation in the Sub-Saharan region. This has contributed to the insufficient articulation of gender issues in the proposed agricultural programmes and visions, such as the African Union’s Agenda 2063 and the Malabo Declaration. These efforts premise the transformation of the African continent on the foundation of the agricultural sector, a critical pillar in most countries in Sub-Saharan Africa.

A framework for disaggregating remote-sensing cropland into rainfed and irrigated classes at continental scale

December, 2023
Global

Agriculture consumes the largest share of freshwater globally; therefore, distinguishing between rainfed and irrigated croplands is essential for agricultural water management and food security. In this study, a framework incorporating the Budyko model was used to differentiate between rainfed and irrigated cropland areas in Africa for eight remote sensing landcover products and a high-confidence cropland map (HCCM). The HCCM was generated for calibration and validation of the crop partitioning framework as an alternative to individual cropland masks which exhibit high disagreement.

Microbial resistance and resilience to drought and rewetting modulate soil N2O emissions with different fertilizers

December, 2023
Global

Future climate models indicate an enhanced severity of regional drought and frequent rewetting events, which may cause cascading impacts on soil nitrogen cycle and nitrous oxide (N2O) emissions, but the underlying microbial mechanism remains largely unknown. Here we report an incubation study that examined the impacts of soil moisture status and nitrification inhibitor (DCD) on the N2O-producers and N2O-reducers following the application of urea and composted swine manure in an acid soil.

Episode 1: Introducing...Policy Pathways

December, 2023
Global

Confronting sustainable development challenges requires system transformation in Food, Land, and Water! Policy Pathways invites policymakers and sustainable development stakeholders to share their expertise on the policy solutions that can advance system transformation across the globe. CGIAR Research Initiative on National Policies and Strategies has produced a series of policy coherence reports focused on India, Colombia, Nigeria, Kenya, Egypt, and Laos.

Farmers on the front line: Perceptions, practices and discrepancies from the Aral Sea's Karakalpakstan and Khorezm regions

December, 2023
Global

Undesirable changes in surface water and groundwater resources and land quality for biophysical and institutional reasons will further endanger the livelihoods of people in Central Asia. The farmers' understanding of these problems and the adaptation and solution strategies they opt for are the critical variables in devising relevant policies. Our findings captured significant disparities between farmer-perceived water shortages and officially documented water availability, as well as soil salinity discrepancies.