Commune agro-ecosystems analysis (CAEA) is a participatory approach designed to help communities improve decision making at the commune (subdistrict) level. To better integrate fisheries considerations into the CAEA process, the CGIAR Challenge Program on Water and Food (CPWF) initiated the project that significantly improved the way fisheries issues are addressed. The use of CAEA has been officially adopted as a national policy for agricultural development.

Agricultural activities in the developing world directly contribute about 4.23 GtCO2eq/y to the current anthropogenic forcing of the global climate, and indirectly a further approximately 3.93GtCO2eq/y through forest clearing and degradation. Together they constitute a quarter of the total global climate forcing from all sources. Many proven agricultural practices and policies can reduce this impact on the global climate without compromising food production, or reduce the climate impact per unit of agricultural production.

Complete issue of Agriculture for Development 22.
Articles:
Pachauri R. Climate change and agriculture in the Fifth Assessment Report.
Beddington J, Warham E. Climate change and sustainable agricultural technologies.
Campbell B. Climate change, agriculture and food security: from local action to global agreements.
Naess LO. Climate change and agriculture: lessons from political economy perspectives.
Sims B. Climate change impacts and mitigation: a review of predictions and reality.

The Asia, Pacific and Oceania (APO) region is the centre of diversity of many important species of crops, animals and livestock. Most of its resource-poor farmers depend on this agrobiodiversity for food security and livelihood. Agrobiodiversity in APO has served as the source of genetic materials that propelled the Green Revolution in the region. It has enabled continuous growth in productivity, allowing agriculture to cope with declining yield, emergence of pests and diseases and occurrence of abiotic stresses like drought and floods.

Large-scale agricultural land investments in Africa are often considered solely from the land perspective. Yet land, water and other natural resources are closely interlinked in agricultural production and in sustaining rural livelihoods. Such investments involving irrigation will potentially have implications for water availability and utilization by other users, making it imperative to regard water as an economic rather than a free good.

We acknowledge financial support to this research by ACIAR, DFID, ESPA, ESRC,NERC and the CGIAR Research Program on Agriculture for Nutrition and Health

The way we produce food must adapt to a variable and changing climate. And key to achieving this is to improve the link between climate information and agricultural practices, especially those of smallholder farmers in developing countries. ‘Agro-climate tools’ do just that and some are introduced here.

This paper synthesizes knowledge within CGIAR and its partners on agricultural practices and technologies to enhance food security, resilience and productivity in a sustainable manner. A number of agricultural practices and technologies which contribute to these objectives were identified and assessed to generate four key lessons.

G-Range is a global model that simulates generalized changes in rangelands through time,

created with support from the International Livestock Research Institute. Spatial data and a set

of parameters that control plant growth and other ecological attributes in landscape units

combine with computer code to represent ecological process such as soil nutrient and water

dynamics, vegetation growth, fire, and wild and domestic animal offtake. The model is spatial,

with areas of the world divided into square cells.

Agroforestry and other tree-based systems (wood lots, afforestation) can contribute to Reducing Emissions from Deforestation and Forest Degradation (REDD+) in two ways: 1) as part of REDD+ under certain forest definitions; and / or 2) as part of a strategy for achieving REDD+ in landscapes. In the context of REDD+, agroforestry has the potential for reducing degradation by supplying timber and fuelwood that would otherwise be sourced from adjacent or distant forests.