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Lignes directrices sur l’utilisation de l’approche du Guide de référence sur la vulnérabilité en intégrant le nouveau concept de risque climatique de l’AR5 du GIEC

Le cinquième rapport d’évaluation (AR5) récemment publié par le Groupe d’experts intergouvernemental sur l’évolution du climat (GIEC) souligne une nouvelle fois les risques omniprésents liés aux changements climatiques. La vulnérabilité à la variabilité actuelle du climat et aux changements climatiques futurs menace particulièrement le développement des populations pauvres et marginalisées. Les conclusions du rapport soulignent qu’il sera nécessaire de reconnaître l’adaptation de manière adéquate lors du futur accord sur le changement climatique en 2015, afin faire face à la vulnérabilité climatique de façon efficace.

his paper contributes to emerging research on the impacts of climate change on communities in the Global South by mapping and analyzing its impacts on rural livelihoods in semi-arid Matobo District in Zimbabwe. It investigates the possibilities and scope for climate change adaptation in this region as communal households adjust and diversify their livelihood portfolios. In so doing, it finds that climate change has had remarkable consequences on the livelihoods of people in this semi-arid area. It has altered the ecosystem leading to the disappearance of certain plant and insect species that were an essential part of the local natural habitat and livelihoods of local people. Rainfall patterns have also become unpredictable leading to erratic, mostly, poor farming seasons with direct implications on the local food system and rural economy. In response to these climate change induced impacts, a variety of new livelihood strategies are emerging as households seek to cushion themselves against this threat to their sustainability. However, a pertinent question is: how far can these adaptation strategies evolve under the increasing pressure of climate change impacts? In other words, are these communal households urging towards tipping points?

The reality of climate change is now a well-accepted reality and there is emerging evidence that climate changeposes a massive threat for development especially in poor countries. An understanding of the emerging trends of climate change and its effects in local ecologies is an important starting point in addressing the negative effects of climate change. This study sought to understand the impact of climate change on the livelihoods of local communities, focusing on Matobo District in Zimbabwe. The objective of the study was to understand how communities have been affected by climate change and how they are adapting to it as well as their perceptions about the gravity of the climate change phenomenon. The findings of the study were that the effects of climate change on livelihoods in the study area are alarming. Climate change has altered the physical geography of the area leading to a disappearance of flora and fauna and other natural habitat that constituted the livelihoods of the local people. Declining precipitation and rising temperatures are making farming increasingly more difficult,and thus aggravating food insecurity in the area. Urgent climate change programming steps must be taken to prevent a livelihoods catastrophe in semi arid regions in sub-Saharan Africa.

Small holder farmers in the semi-arid areas have not been able to utilize seasonal climate forecasts in making crop management decisions due to limited exposure as well as failure to interpret it. Three participatory meetings were held with farmers in Lower Gweru and Lupane Districts of Zimbabwe soon after the release of the 2008/2009 and 2009/2010 seasonal climate forecast in September of each season. This was done to solicit for farmers’ prediction of the coming rainy season and come up with field test crop management practices. Farmers have their sets of indicators that they rely on to forecast seasonal rainfall which are based on generations of past experience that include environmental, biological, and traditional beliefs. There is however, need to investigate how their indicators compare with the scientific forecast in making farming decisions. Farmers claimed that the rains were starting later and finishing earlier whilst analysis of the rainfall record showed that starting rains have been later by 5 to 10 days in the last five years. There was an increase in the number of dry spells in the rainy season in the last five years compared to the period 1980 to 2008. Adding recommended amounts of fertilizers resulted in yield increases of 40% compared to adding half the recommended amounts. Growing long season varieties resulted in higher yields (22%) than growing short season varieties in the 2009/2010 wetter season while growing of shorter season variety had yield advantage (36%) over the long season variety in the 2009/2010 which was relatively dry. Frequent weeding resulted in about 8% increase in maize yields compared to weeding once in a season. The study demonstrates that knowledge of the coming season assists smallholder farmers in coming up with adaptive strategies for climate variability and change.

The purpose of the RLAT is to provide a sufficiently accurate pre-screening tool for identifying intervention points along agribusiness Value Chains (VCs), working out incentives for VC operators and proposing measures to reduce pre- and post-harvest losses. The tool supports the design of concrete interventions that have the primary aim of improving food security at the subsistence level, either on farms or in communities, and the secondary aim of upgrading specific VCs.

The smallholder sector is vulnerable to climate change due to its reliance on rainfed agriculture and has the least ability to adapt. Based on appropriate weather forecasts, farmers can mitigate and adapt to climate change through sound crop management decisions. A study was conducted to explore indigenous knowledge system (IKS) weather forecasts as a climate change adaptation strategy in smallholder farming systems of Zimbabwe. Eighty six farmers from three agro-ecological regions with different agricultural potential and cultural backgrounds were involved in the study. Questionnaires and focus group discussions were used to collect data on climate change perceptions, access and interpretation of meteorological forecasts and IKS weather indicators and their use in crop production. Most farmers (93%) believed that there is climate change, citing low rainfall, late rains and rising temperatures as some of the indicators. Sixty five percent of farmers had access to and can interpret the meteorological forecasts disseminated through print and electronic media, though arguing that the forecasts are not timely disseminated. Sixty seven percent of the respondents were using IKS weather indicators such as wild fruits, trees, worms and wind for predicting seasonal quality in addition to meteorological forecasts. Basing on IKS forecasts, farmers are changing varieties, staggering planting dates, varying fertilizer rates and cropping land area. The study showed that IKS forecasts indicators are different in the three agro-ecological regions, are being used by farmers in making farming decisions and if properly documented, disseminated and integrated with scientific seasonal climate forecasts can be used as a climate change adaptation strategy.

An easily manageable methodology that provides hands-on strategic orientation to those developing realistic and realisable measures for sustainable food loss reduction. The methodology is designed to serve as a pre-screening for further in-depth-studies and to identify leverage points for reducing losses at the various value chain stages — from farming, through handling and processing, to retail trade.

Ce dossier souhaite apporter un éclairage plus approfondi sur la thématique des pertes alimentaires et présenter les champs d’action actuels, l’expérience acquise et les défis à surmonter dans ce domaine.

Current agricultural practices in Mozambique and Lesotho lead to localized externalities and systematic “macro” erosion. However, conservation agriculture, which promotes minimal tillage, intercropping, and maintaining a soil cover, can be applied to moderate erosion and improve food security while sequestering carbon. This presentation examines the greenhouse gas reduction potential Sustainable Agriculture and Natural Resource Management (SANREM) Collaborative Research Support Program’s 5 year project to promote conservation agriculture in Mozambique and Lesotho. It provides graphical comparisons of carbon emissions for tillage and no-tillage systems. Results of a household survey in Mozambique are utilized to examine the probability of the adoption of conservation agriculture related to input use, training, labor constraints, and project support. Farmers who use fertilizer and herbicide and receive credit were found to have the highest adoption rate for conservation agriculture.