Arid Region Farming Primer A set of pages on practices of cultivation for arid and semiarid lands. http://www.echonet.org/tropicalag/aztext/azch7ari.htm
China's Dryland Farming and Practices Describes how dryland farming is being practised and developed, especially in the northern regions of the country (PDF file). http://www.lanl.gov/chinawater/documents/zhuyu.pdf
Dryland Farming in Palestine Online book describing the crops, practices and history of cultivation in the area, with statistics. http://www.arij.org/pub/dryland/
Livestock Systems in Semi-Arid Sub-Saharan Africa Article describing the current and likely future effects of climatic changes on agriculture in the region. http://www.husdyr.kvl.dk/htm/php/tune96/18Ogle.htm