CCARDESA Content

Sustainability of rain-fed farming systems under climate variability and change conditions is a key concern for policy and adaptation planning processes to improve food and nutrition security. The challenge is to improve farming and tillage practices to enhance soil moisture availability and harvest excess runoff thereby making the farming systems more reliable and resilient to unpredictable risks of climate change and variability. In this short manuscript, an assessment of climate change impact on the agricultural water availability for rainfed systems in southern Africa is discussed through a pilot project conducted recently as part of climate change adaptation integrated modeling of crop-climate-soil systems. We consider the Pandamatenga plains in north-eastern Botswana, which was undertaken with the main indicators of crop yield impact with respect to soil water availability and excess runoff harvesting potential, for the current climatology (1971-2000) and projected over the coming decades up to the 2050s. The indicators of rainfed practices of growing maize, sorghum and sunflower are discussed, which are likely influenced not only by climate, but also the response requiring local and regional adaptation investments for improved food security and increase productivity. The manuscript recommends technical and policy interventions for incorporating climate change adaptation practices, with the view to outscale to national and possibly regional agricultural development planning processes.

This presentation discusses enhancing evidence based climate change adaptation research and policy for agriculture in southern Africa.

CCARDESA's Climate Change Adaptation Strategy: Evidence from CCARPASA Project

This literature review summarises theory and evidence of the contribution of conservation agriculture (CA) to resilence in the event of drought. A resilient agricultural system is able to continue to function and provide essential ecosystem services, such as food provisioning, following an external shock. If drought occurs, a more resilient system should o er higher productivity and food security. The review asks whether CA improves productivity and food security when rainfall is poor, and what aspects of CA contribute most to these benefits. The review will guide the design of a eld study on the impacts of CA after the 2015/16 El Nino drought in southern Africa.

Climate policy commonly carries an implicit assumption that incremental improvements in agricultural systems are adequate to make them resilient to climate change. In some cases, however, agricultural systems may cross certain environmental thresholds that require more transformational adaptation.

Governments and development agencies need to improve their understanding of climate thresholds and their preparedness for transformational adaptation. Climate smart agriculture frameworks should consider the piloting of strategies for transformational adaptation.

This information brief highlights key findings in the Vuna report “Assessing the contributions of conservation agriculture to building resilience to drought”

This information brief highlights key findings in the Vuna report “Transformational Adaptation to Climate Change: Concepts, Examples, and Relevance for Agriculture in Eastern and Southern Africa,