东北地区的大兴安岭、小兴安岭和长白山区，是中国最大的天然林区，到处是望不到边的红松、落叶松、黄花松等针叶林和白桦、柞树、水曲柳、杨树、榆树等阔叶林。
The Greater Hinggan, the Lesser Hinggan and the Changbai mountain ranges in the northeast are China's largest natural forest areas.
利用近50年的系统定位观测资料，分析红松果材兼用林不同林分密度与直径、树高、冠幅等主要测树因子的关系。
By using observation data over 50 years, the paper systematically analyzed the relations of different stand density with diameter, height, crown of trees and so on.
八月份林分单位面积蒸腾量主要受平均蒸腾强度和叶量的影响，红松人工林最大，毛榛子灌丛最小。
The forest transpiration amount in August of korean pine plantation was the largest on average area, and hazel shrubbery is the least.
林下植被生物量随林龄增长而降低，所有年龄阶段红松人工林林下植被生物量都低于红松混交林和天然次生林。
The undergrowth vegetation biomass in Korean pine plantations declined over years and was less than that of the mixed forest of Korean pine and secondary natural forest at all age stages.
对金沟岭林场阔叶红松过伐林直径结构、重要值、分布格局以及存活曲线进行了分析。
The diameter structure, importance value, distribution pattern and survival curve of broad-leaved Korean pine of over-logged forest in Jingouling forest Farm was analysed.
本文揭示了红松原始林卫生清理后，绿色草本植物数量增加了59.1%，矮小灌木数量下降了50.95%，枯枝落叶层含量下降了24.58%。
The paper concerns in virgin Korean pine forest, after sanitation cutting, the herb increases 59.1%, the shrub decreases 50.95%, the litter decreases 24.58%.
以中国东北长白山阔叶红松林为例，应用林窗模型NEWCOP探索了不同模拟样地面积对林窗模型输出结果的影响。
A case study on the effect of different plot area on forest gap model simulation was conducted with forest gap model NEWCOP in broad leaved Korean pine forests at Changbai Mt. of Northeastern China.
说明红松混交林土壤质量最好，58年生红松人工林土壤质量最差。
Soil quality of mixed forest of Korean pine is the best, and that of 58 year-old Korean pine plantation is the worst.
结果表明，天然红松阔叶林空间分布格局调查的最小样本量为49。
It showed that the minimum sample for spot checking tree spatial distribution patterns of natural Korean pine broad leaved forest should be 49.
对现实原始林预测显示，森林未来300年变化稳定，红松株数和生物量变化很小。
The prediction of current primary forest showed that it was steady during the next 300 year period, the number of trees and the biomass of Korean pine changed very little.
因此，为制定红松天然林的经营技术提供了理论依据。
Therefore, this study provided a theoretical basis for the management technology of natural Korean pine forest.
因此，为制定红松天然林的经营技术提供了理论依据。
Therefore, this study provided a theoretical basis for the management technology of natural Korean pine forest.
应用推荐