Abstract:

Testing the adaptivity of different tree species to sandy land can not only select the adaptive tree species for different sandy sites and enrich the resource of tree species,but also is required by the coastal protection forest ecosystem management.In this paper,the tree species that were adaptive for different sandy sites were selected by means of testing their survival percent, growing increment, and wind tolerance. The testing results showed that:1.The adaptive tree species on sandy soil behind shelterbelt were Eucalyptus grandis×E.urophylla, Eucalyptus 12 ABL, Acacia crassicarpa, A.aulacocarpa, and A.mangium. There were other 10 tree species, such as Casuarina Janghuhuiana, E. citriodora, A. auriculaeformis, Pinus elliottii etc., which could be planted on sandy soil behind shelterbelt,but were not as good as adaptive tree species.2.The adaptive tree species on cutting blank of shelterbelt were C.equisetifolia701#,C.equisetifolia601#, and A. crassicarpa. 3.The adaptive tree species on opened,windy,draught,and sandy site,which was protected by sparse and old Casuarina shelterbelt,were C.equisetifolia Hui'an 1# and C.equisetifolia Australia C38 provenance; and primary testing showed that C.equisetifolia, C.equisetifolia Aust. 15198 provenance,C. equisetifolia 701#,and C.cunnianianghamia had the potential of growth on this kind of sites.

Key words: Coastal sandy land, Tree species, Adaptability