Influence of Fertilization on the Growth of Artificial Cryptomeria fortune Forest in the Western Margin Mountains of the Sichuan Basin

In order to understand the influence of fertilization on the growth of artificial Cryptomeria fortuna forests,fertilization tests were conducted on growth of young and middle-aged artificial forest of C. fortune in Yangcun Township, Muchuan County. The results showed that fertilization could significantly promote the growth of young-aged artificial forest. The height and diameter under fertilization were all more than 1.5 times as compared with no fertilization. Fertilization had not significant influence on the growth of middle-aged artificial forest. There were not significant differences of height and diameter at breast height between fertilization and no fertilization. It was advised to promote economic benefits through "Forest intercropping" (cultivated cash crops among the trees) and indirect fertilization. In middle-aged forest stands, silvicultural measure like nurture and intermediate cuttings could improve the amount of growth.