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ArticleJournal articleDiversité des espèces ligneuses de la forêt urbaine des espaces scolaires des villes de Niamey et Maradi au Niger : un appel à l'action pour verdir la cour d'école pour une éducation durable
XVe Congrès forestier mondial, du 2 au 6 mai 2022
2022Also available in:
No results found.Les espaces scolaires urbains sont essentiels à la conservation de la biodiversité notamment les espèces ligneuses qui fournissent de nombreux services écosystémiques aux élèves, aux enseignants et à la ville où sont implantées les écoles. Cependant, peu ou pas d'études ont exploré le rôle des cours d'école urbaines dans la conservation de la biodiversité et la séquestration du carbone. Cette étude a donc évalué la structure et les valeurs des essences des espaces scolaires urbains dans les villes de Niamey et Maradi. Un total de 60 écoles a été sélectionné sur la base d’un échantillonnage orienté par quota dans les villes de Niamey et de Maradi (30 écoles dans chaque ville). Les données ont été collectées par le biais d'une enquête, un inventaire forestier et des observations du terrain. Les résultats ont révélé qu'un total de 97 essences appartenant à 35 familles et 81 genres. De plus, Azadiractha indica est l’essence dominante dans les cours des écoles de deux villes. L'indice de similarité était de 64% indiquant une forte similarité entre les flores des cours d'école dans les deux villes. La valeur du stock de carbone était de 48,91 et 27,49 t/ha dans les écoles primaires de Niamey et Maradi respectivement. De plus, l'analyse de la structure des forêts des cours d'école urbaines a montré des valeurs élevées des paramètres structurels indiquant la vitalité de la forêt urbaine des espaces scolaires de ces deux villes. La capacité des élèves à nommer les plantes, les animaux et les services écosystémiques de leurs cours d'école est considérablement faible. Cette étude recommande l'utilisation d’essences à usages multiples dans les initiatives de verdissement des écoles pour une éducation de qualité. En outre, l'étude recommande une enquête plus approfondie sur les effets de la structure de la forêt urbaine de l'école sur les performances scolaires des élèves et leur potentiel allergène des essences trouvées dans les écoles urbaines. Mots clés: Alphabétisation écologique, Education environnementale, une école verte, Ecoles en forêt, Sahel ID: 3622719 -
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Book (stand-alone)High-profileStatus of the World's Soil Resources: Main Report 2015
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No results found.The SWSR is a reference document on the status of global soil resources that provides regional assessments of soil change. The information is based on peer-reviewed scientific literature, complemented with expert knowledge and project outputs. It provides a description and a ranking of ten major soil threats that endanger ecosystem functions, goods and services globally and in each region separately. Additionally, it describes direct and indirect pressures on soils and ways and means to combat s oil degradation. The report contains a Synthesis report for policy makers that summarizes its findings, conclusions and recommendations.The full report has been divided into sections and individual chapters for ease of downloading:
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Book (series)FlagshipThe State of Food Security and Nutrition in the World 2021
Transforming food systems for food security, improved nutrition and affordable healthy diets for all
2021In recent years, several major drivers have put the world off track to ending world hunger and malnutrition in all its forms by 2030. The challenges have grown with the COVID-19 pandemic and related containment measures. This report presents the first global assessment of food insecurity and malnutrition for 2020 and offers some indication of what hunger might look like by 2030 in a scenario further complicated by the enduring effects of the COVID-19 pandemic. It also includes new estimates of the cost and affordability of healthy diets, which provide an important link between the food security and nutrition indicators and the analysis of their trends. Altogether, the report highlights the need for a deeper reflection on how to better address the global food security and nutrition situation.To understand how hunger and malnutrition have reached these critical levels, this report draws on the analyses of the past four editions, which have produced a vast, evidence-based body of knowledge of the major drivers behind the recent changes in food security and nutrition. These drivers, which are increasing in frequency and intensity, include conflicts, climate variability and extremes, and economic slowdowns and downturns – all exacerbated by the underlying causes of poverty and very high and persistent levels of inequality. In addition, millions of people around the world suffer from food insecurity and different forms of malnutrition because they cannot afford the cost of healthy diets. From a synthesized understanding of this knowledge, updates and additional analyses are generated to create a holistic view of the combined effects of these drivers, both on each other and on food systems, and how they negatively affect food security and nutrition around the world.In turn, the evidence informs an in-depth look at how to move from silo solutions to integrated food systems solutions. In this regard, the report proposes transformative pathways that specifically address the challenges posed by the major drivers, also highlighting the types of policy and investment portfolios required to transform food systems for food security, improved nutrition, and affordable healthy diets for all. The report observes that, while the pandemic has caused major setbacks, there is much to be learned from the vulnerabilities and inequalities it has laid bare. If taken to heart, these new insights and wisdom can help get the world back on track towards the goal of ending hunger, food insecurity, and malnutrition in all its forms. -
BookletCorporate general interestEmissions due to agriculture
Global, regional and country trends 2000–2018
2021Also available in:
No results found.The FAOSTAT emissions database is composed of several data domains covering the categories of the IPCC Agriculture, Forestry and Other Land Use (AFOLU) sector of the national GHG inventory. Energy use in agriculture is additionally included as relevant to emissions from agriculture as an economic production sector under the ISIC A statistical classification, though recognizing that, in terms of IPCC, they are instead part of the Energy sector of the national GHG inventory. FAO emissions estimates are available over the period 1961–2018 for agriculture production processes from crop and livestock activities. Land use emissions and removals are generally available only for the period 1990–2019. This analytical brief focuses on overall trends over the period 2000–2018.