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Book (stand-alone)Technical studyDeep-ocean climate change impacts on habitat, fish and fisheries
FAO Fisheries and Aquaculture Technical Paper No. 638
2019Also available in:
No results found.This publication presents the outcome of a meeting between the FAO/UNEP ABNJ Deep-seas and Biodiversity project and the Deep Ocean Stewardship Initiative. It focuses on the impacts of climatic changes on demersal fisheries, and the interactions of these fisheries with other species and vulnerable marine ecosystems. Regional fisheries management organizations rely on scientific information to develop advice to managers. In recent decades, climate change has been a focus largely as a unidirectional forcing over decadal timescales. However, changes can occur abruptly when critical thresholds are crossed. Moreover, distribution changes are expected as populations shift from existing to new areas. Hence, there is a need for new monitoring programmes to help scientists understand how these changes affect productivity and biodiversity. The principal cause of climate change is rising greenhouse gases and other compounds in the atmosphere that trap heat causing global warming, leading to deoxygenation and acidification in the oceans. Three-dimensional fully coupled earth system models are used to predict the extent of these changes in the deep oceans at 200–2500 m depth. Trends in changes are identified in many variables, including temperature, pH, oxygen and supply of particulate organic carbon (POC). Regional differences are identified, indicating the complexity of the predictions. The response of various fish and invertebrate species to these changes in the physical environment are analysed using hazard and suitability modelling. Predictions are made to changes in distributions of commercial species, though in practice the processes governing population abundance are poorly understood in the deep-sea environment, and predicted -
DocumentOther documentGlobally Important Agricultural Heritage System (GIAHS) proposal - Traditional Hadong Tea Agrosystems in Hwagae-myeon
nov/17
2019Also available in:
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Book (stand-alone)Technical bookThe Islamic Republic of Afghanistan. Agro-Ecological Zoning Atlas
Part 1: Agro-climatic indicators
2019Also available in:
No results found.Agriculture is crucial for the national economy of the Islamic Republic of Afghanistan. Adoption of new strategies for agriculture monitoring, rural land use planning, and management are urgently required to reduce hunger and poverty and to assure sustainable food and feed production for future generations. The availability of reliable information on natural resources and agriculture for its monitoring and analysis is indispensable to the development and implementation of such strategies. For this purpose the project “Strengthening Afghanistan Institutions’ Capacity for the Assessment of Agriculture Production and Scenario Development” (GCP/AFG/087/EC), funded by the European Union (EU), is implemented by the Ministry of Agriculture, Irrigation and Livestock (MAIL) and the Food and Agriculture Organization of the United Nations (FAO). Within the context of this project, FAO and the International Institute for Applied Systems Analysis (IIASA) are developing a National Agro-Ecological Zoning activity (NAEZ) in Afghanistan. This Atlas is the first of two books and provides the collected information and maps of the country based on the agro-climatic Indicators.