Introduction of Pinus radiata for afforestation: a review with reference to Aba, China

Pinus radiata D. Don, native to a California coastal environment, has been introduced to many parts of the world as an exotic species for afforestation. It is now a major plantation species in the Southern Hemisphere. In 1990, it was introduced to the heavily degraded, dry Min river valley area in Aba prefecture of Sichuan Prevince, P. R. China. Survival and growth of young trees planted st several sites appear to be reasonable. This review is to serve as an introduction to the large body of literature on P. radiata for forest scientists in Chine. It convers the following aspects: P. radiata in its native environment and in ex situ plantations, provenance and genetic variations, environmental limitations and climate niche, diseases and pests, lessons from unsuccessful introductions, and the use of P. radiata for ecological restoration. The early growth of P. radiata planted in the dry river valley area is briefly described. Potential problems associated with the introduction of P. radiata in Aba and future research needs are also identified.