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一、水曲柳天然生长情况水曲柳在我区天然生长状况良好,高、径生长都不低于落叶松.1980年冬季我们在该场红旗沟12林班、33林班伐区内对伐倒木进行解析调查,十年生天然实生幼树高3米,胸径3厘米;二十年生幼树高9米,胸径10厘米;三十年生幼树高13米,胸径16厘米,无节良材8-10-10米以上,一般占树高三分之二,直径连年生长量0.5厘米,材积连年生长量0.00951立方米. 二、水曲柳天然更新水曲柳在我施业区种源丰富,天然更新情况较好.在山腹地、河谷沿岸的皆伐迹地和
First, the natural growth of ash Manchurian ash in my area of natural growth in good condition, height, diameter growth is not lower than the larch in the winter of 1980 we red flag ditch 12 forest classes, 33 forest area Decades of wood to carry out analytical investigation, 10-year-old natural seedlings sapling height of 3 meters, diameter 3 cm; 20-year-old sapling height of 9 meters, diameter 10 cm; thirteen year-old saplings 13 meters high, diameter 16 cm, -10-10 m, generally accounting for two-thirds of the tree, the annual growth rate of 0.5 cm in diameter, the volume of annual growth of 0.00951 cubic meters. Two, Manchurian ash natural regeneration in the Shiye area rich in provenance, The natural renewal is better. In the hinterland, the deforestation along the river valley and