Chiangmai irrigation system, Chiangmai Villages Two and One, Chiangmai Province, Thailand

Resource System
Watershed and associated topography
Resource Units
Freshwater

This case was part of the original CPR database developed in the 1980s by Edella Schlager and Shui Yan Tang at Indiana University.

The Chiangmai village irrigation system is located within the Ping River valley in northern Thailand. The key resource system is the Ping River system and the key common-pool resource unit relevant to the commons dilemma is water. The original case spans 1971-1972 and reports 875 village residents and 206 households, of which 171 households are engaged in some farming activity. The village draws from three irrigation systems in the valley. Farmers adhere to rules dictating water use and irrigation canal maintenance. The original case was considered successful in managing the shared water resource. Some key vulnerabilities include strain on water resources and changes in the agricultural export market.