Relevance of methodological choices for accounting of land use change carbon fluxes

Accounting for carbon fluxes from land use and land cover change (LULCC) generally requires choosing from multiple options of how to attribute the fluxes to regions and to LULCC activities. Applying a newly developed and spatially explicit bookkeeping model BLUE (bookkeeping of land use emissions), we quantify LULCC fluxes and attribute them to land use activities and countries by a range of different accounting methods. We present results with respect to a Kyoto Protocol-like "commitment" accounting period, using land use emissions of 2008-2012 as an example scenario. We assess the effect of accounting methods that vary (1) the temporal evolution of carbon stocks, (2) the state of the carbon stocks at the beginning of the period, (3) the temporal attribution of carbon fluxes during the period, and (4) treatment of LULCC fluxes that occurred prior to the beginning of the period. We show that the methodological choices result in grossly different estimates of carbon fluxes for the different attribution definitions. ©2015. American Geophysical Union. All Rights Reserved

Soil type influences crop mineral composition in Malawi

Food supply and composition data can be combined to estimate micronutrient intakes and deficiency risks among populations. These estimates can be improved by using local crop composition data that can capture environmental influences including soil type. This study aimed to provide spatially resolved crop composition data for Malawi, where information is currently limited. Six hundred and fifty-two plant samples, representing 97 edible food items, were sampled from N150 sites in Malawi between 2011 and 2013. Samples were analysed by ICP-MS for up to 58 elements, including the essential minerals calcium (Ca), copper (Cu), iron (Fe), magnesium (Mg), selenium (Se) and zinc (Zn). Maize grain Ca, Cu, Fe, Mg, Se and Zn concentrations were greater from plants grown on calcareous soils than those from the more widespread low-pH soils. Leafy vegetables from calcareous soils had elevated leaf Ca, Cu, Fe and Se concentrations, but lower Zn concentrations. Several foods were found to accumulate high levels of Se, including the leaves of Moringa, a crop not previously been reported in East African food composition data sets. New estimates of national dietary mineral supplies were obtained for non-calcareous and calcareous soils. High risks of Ca (100%), Se (100%) and Zn (57%) dietary deficiencies are likely on non-calcareous soils. Deficiency risks on calcareous soils are high for Ca (97%), but lower for Se (34%) and Zn (31%). Risks of Cu, Fe and Mg deficiencies appear to be low on the basis of dietary supply levels

Women's access to agricultural technologies in rice production and processing hubs: A comparative analysis of Ethiopia, Madagascar and Tanzania

This study presents results from a farmer survey conducted with 560 rice farmers from 27 villages spread over five hubs (concentration areas of rice production and processing) in three different countries in Eastern Africa (Ethiopia, Tanzania and Madagascar). The main research objective was to assess women’s access to rice technologies and constraints to adoption of technologies. Constraints were analyzed over five different categories: (1) institutional (2) access to agricultural inputs, (3) technology-contextual, (4) household and socio-cultural and (5) extension. Key providers of extension were public (government), Non-Governmental Organizations (NGOs) and international organizations. Our study identifies that the overarching constraints to technology adoption are institutional and cultural impediments and related to the mode of delivery of extension services. Furthermore, the Focus Group Discussions (FGD) with the women, revealed that empowerment of women in decision making at the household level can enhance women’s access and engagement in better farming practices suggested under extension advisory services. This is specifically true where women are able to overcome the hurdles of acquisition of extension training and access to the improved technologies

Water management and livelihood choices in southwestern Bangladesh

Coastal Bangladesh faces an increasing number of challenges including cyclones, tidal surges, floods, drought, saline water intrusion, waterlogging and land subsidence, which pose substantial threats to the livelihoods of the coastal inhabitants. In addition to these threats, profound social and land-use changes are complicating the livelihoods of resource users in the region, including the introduction of aquaculture and increasing competition for ground and surface water sources. The government of Bangladesh has targeted this region for investment with irrigation expansion. This paper uses a sustainable livelihood lens to understand the role of investments in water management and irrigation in driving and shaping livelihood changes and transitions over the past ten years and offers recommendations for investments. We find that while water infrastructure development has greatly enhanced the role of agriculture in coastal livelihoods over the last 10 years, further development of irrigation infrastructure should only be prioritized after issues of water governance and inequity across agricultural and aquacultural livelihoods are addressed

Food industry by-products valorization and new ingredients: cases of study

The concern about food and beverages is gaining importance for the general public in terms of health and more environmentally sustainable food products. Healthy foods imply the awareness on their safety, nutritional characteristics, and the potential inclusion of nutritive complements such as antioxidants, vitamins, and proteins, which promote a benefit to the consumer's health. Also, organic foods, with less added chemicals such as pesticides, are more demanded recently. The environmentally sustainable food production has to reconsider the wastes as by-products that can be transformed to provide valuable compounds (antioxidants, fiber, fuels, etc.) that could be used as new products or raw materials in the food industry or even applied in other sectors such as pharmaceutical, polymer, and energy industries. In this chapter, selected successful case studies in which food wastes are transformed into new products by using different separation and purification technologies will be shown. Furthermore, the use of different wild vegetables from natural environments as a source of valuable compounds and new ingredients will be described.info:eu-repo/semantics/publishedVersio

Adult Learning for Nutrition Security: Challenging dominant values through participatory action research in Eastern India

National statistics point to the severe problem of hunger and undernutrition within indigenous communities in India. Several state interventions exist, in terms of both supplementary feeding and nutritional literacy, yet not much progress is visible. This paper explores the experiences of a participatory, educational, action research programme on nutrition for indigenous men and women in Eastern India. Spanning a period of three years, it examines the adult learning approaches involved in the process, and their implications for gender relations as well as improved nutritional outcomes. It became clear, that to bring change, it was essential that the facilitators listen to women’s voices and question their own assumptions about ethnicity/caste, class and gender, as well as nutrition. Based mainly on their field reports, this paper seeks to highlight the emergent insights in terms of indigenous women’s priorities, their focus on the ‘collective’, and emphasis on recognition and reciprocity, vis-a-vis institutions of both state and society, articulated during the process of dialogue, reflection, action and learning