Comparative Study on Growth Adaptability of Tolerance Barren Elites of Cunninghamia lanceolata Under Different Climate Conditions

The adaptability of barren tolerance elites of screened 8-year-old Cunninghamia lanceolata to the climatic conditions was studied based on the growth adaptability of barren tolerance elites of C.lanceolata, it indicated that the height, breast-diameter and timber-volume growth of the different elites fitted on the different growth condition. The height-growth of Minshan No.6 and No.10 were downtrend and tend to the average baby, the height-growth of another were better from 2011 to 2016. The height-growth of Minshan No.4, No.6 and No.9 were of the especial fast-growth and the height-growth of Minshan No.9 got 3.5 m, but the height-growth of Minshan No.1and No.12 were lack of another a particular year, because of more rainfall capacity and under 35 ℃ of air temperature during growing period in 2015. The breast-diameter growth of Minshan No.8, No.9 and No.10 were well and the breast-diameter growth of another elites were lack of up-year in 2015. The timber-volume growth and change were the same of the growth of height and breast-diameter, the growth of height and breast-diameter and timber-volume indicated that the growth adaptability of Minshan No.4, No.6, No.8, No.9 and No.10 will be more fitting on the growth-condition of the relatively lack light and bigger humidity and fertile soil, the growth adaptability of Minshan No.1, No.2, No.3, No.5, No.7, No.11, No.12 and No.13 will be more fitting on the growth-condition of the relatively height-temperature and drought and barren soil.