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Book (stand-alone)Proceedings of the Global Symposium on Soil Organic Carbon 2017 2017
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No results found.The Proceedings of the Global Symposium on Soil Organic Carbon 2017 (GSOC17) presents the abstracts of all scientific presentations held during the GSOC17. 103 oral presentations and 35 poster presentations built the core of this event triggering fruitful discussions on the state-of-science in measuring, preserving and enhancing soil organic carbon in different soils of the world. The GSOC17 took place from 21 to 23 March at FAO Headquarters and was structured in three themes: Theme 1: Monitorin g, mapping, measuring, reporting and verification (MRV) of SOC Theme 2: Maintaining and/or increasing SOC stocks for climate change mitigation and adaptation Theme 3 - Managing SOC in soils with high SOC - peatlands, permafrost, and black soils; in grasslands, and livestock production systems; and in dryland soils -
DocumentSoils help to combat and adapt to climate change by playing a key role in the carbon cycle 2015Healthy soils provide the largest store of terrestrial carbon. When managed sustainably, soils can play an important role in climate change mitigation by storing carbon (carbon sequestration) and decreasing greenhouse gas emissions in the atmosphere. Conversely, if soils are managed poorly or cultivated through unsustainable agricultural practices, soil carbon can be released into the atmosphere in the form of carbon dioxide (CO2), which can contribute to climate change. The steady conversion of grassland and forestland to cropland and grazing lands over the past several centuries has resulted in historic losses of soil carbon worldwide. However, by restoring degraded soils and adopting soil conservation practices, there is major potential to decrease the emission of greenhouse gases from agriculture, enhance carbon sequestration and build resilience to climate change.
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Book (stand-alone)Application of nitrogen-fixing systems in soil improvement and management
FAO Soils Bulletin No.49
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No results found.In view of the continuing increase in cost and scarcity of mineral fertilizers resulting from the use of high-cost fossil energy, there is renewed interest in organic recycling and biological nitrogen-fixation to improve soil fertility and productivity. The workshop in Alexandria recommended the further promotion of research, development, application and dissemination of information available on various aspects of biological nitrogen-fixation, including symbiotic systems of rhizobia/legume and Azolla/blue-green algae, and free-living nitrogen-fixing bacteria and blue-green algae. It is hoped that the compilation of various aspects of nitrogen-fixation under one cover in this Bulletin will be of interest and assistance to research workers and extension planners concerned with the further development and refinement of these natural systems for soil improvement and management.
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