论文部分内容阅读
为了加速沙兰杨等杨树良种的推广,迅速实观杨树速生丰产,落实华主席提出的抓纲治国的战略决策,我们于1977年3月中旬,在河南省南阳地区林业局及南召县县委等党政领导支持和协助下,对该县沙兰杨丰产单株进行了现场调查。结果如下: 调查单株位于南召县城招待所四旁,土质偏粘、较肥,树令12年,树高26.5米,胸径60.5厘米,单株立木材积3.34立方米。年平均生长量:树高2.2米,胸径5.04厘米,单株材积为0.2825立方米。为目前国内所有同令树种中生长最快、产量最高的。
In order to speed up popularization of poplar varieties such as Sallam and Poplar, quickly popularize fast-growing and high-yield poplar trees and implement the strategic decision made by Chairman Hua to grasp the country and rule the country. In mid-March 1977, in Nanyang Prefecture Forestry Bureau of Henan Province and Nanzhao County County party committee and government leaders and other support and assistance, the county Sha Lan Yang Feng-made single-site investigation. The results are as follows: The investigation plant located in Nanzhao county guest house on four sides, the soil partial sticky, fat, tree for 12 years, tree height 26.5 meters, diameter 60.5 cm, stand volume of 3.34 cubic meters per plant. The average annual growth rate: tree height 2.2 meters, 5.04 centimeters in diameter, single volume of 0.2825 cubic meters. At present, all the trees in the same growth of the fastest growing, the highest yield.