For adoption of variable rate technology to increase, more knowledge of how crop yields respond to inputs is needed. As the necessary agronomic research involves approximating site-specific yield response functions, data used inherently lend themselves to spatial analysis. We discuss the...

Land-use change in developing countries is of great interest to policy-makers and researchers with diverse interests. Concerns about consequences of deforestation for global climate change and biodiversity have received the most publicity, but loss of wetlands, declining land productivity and...