Growth Performances of Twelve Broad-leaf Tree Species in Yunfu,Guangdong Province
Growth performances of multiple tree species in the six-year-old mixed forest were evaluated based on the establishment of the contrastive trial of 12 broad-leaf tree species and the investigation of growth index. The results showed that the preserving rate of Aquilaria sinensis was 32.3％ while that of the other 11 tree species was higher than 90％, indicating the high adaptability of most tree species to the the local environment. Significant differences were found in the growth index among different tree species in the mixed forest. The growth of Betula alnoides and Mytilaria laosensis were the best which annual DBH increments were 2.49 cm and 2.36 cm, and the annual height increment were 1.79 m and 1.47 m, respectively. Sindora glabra, Erythrophleumfordii and A. sinensis had lowest increment of DBH and height. By means of cluster analysis, B. alnoides and M. laosensis were classified into very fast-growing type; Castanopsis hystrix, Paramichelia baillonii, Elaeocarpus sylvestris and Magnoliaceae glanca were belonging to fast-growing type; Michelia macclurei, Rhodoleia championii and M. chapensis were categorized to moderately growing type, and S. glabra, A. sinensis and E. fordii were attributed in the slow-growing type. In conclusion, five fast-growing tree species of M laosensis, B. alnoides, C. hystrix, P. baillonii and M. glanca characterized with great adaptability and strong resistance to diseases and pests, were recommended to establish the ecological welfare forest in western Guangdong.
broad-leaf tree speciesecological welfare forestpreserving ratetree heightDBH
NETL
NSTL
万方数据
维普
