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| 红花尔基樟子松林生长状况及结实规律的调查 | |
| 引用本文： | 李永多,王之迹,国丰富. 红花尔基樟子松林生长状况及结实规律的调查[J]. 林业科学, 1981, 0(3): 306-313 |
| 作者姓名： | 李永多 王之迹 国丰富 |
| 作者单位： | 黑龙江省林业勘察设计局；林业部种苗局 |
| 摘 要： | 内蒙古自治区呼伦贝尔盟红花尔基沙地樟子松林,是我国最大的樟子松种子林基地。为了科学地经营管理好樟子松种子林,我们根据近几年的调查资料,对樟子松的生长、结实规律进行了分析整理,供有关部门制定经营措施时参考。一、影响樟子松生长发育的生态环境因素红花尔基林业局位于呼伦贝尔盟鄂温克自治旗的中南部,陈巴尔虎左旗的东南部,地处北纬47°41′—48°08′,东经119°—125°45′。属大兴安岭山前丘陵和呼伦贝尔高平原。海拔600—800米,区内由西北向东南逐渐升高。本地区气候特点是气温低,降水量少,蒸发 |
AN INVESTIGATION ON THE GROWTH CONDITIONS AND THE REGULATION OF SEED BEARING OF SCOTCH PINE STAND IN HONGHAERGI REGION |
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| Li Yong-duo,Wang Zhi-ji,Guo Feng-fu. AN INVESTIGATION ON THE GROWTH CONDITIONS AND THE REGULATION OF SEED BEARING OF SCOTCH PINE STAND IN HONGHAERGI REGION[J]. Scientia Silvae Sinicae, 1981, 0(3): 306-313 | |
| Authors: | Li Yong-duo Wang Zhi-ji Guo Feng-fu |
| Affiliation: | Bureau of Forest Survey and Project, Heilungkiang Province;Bureau of seed and Seedling, Ministry of Forestry |
| Abstract: | During the year 1974—1978, a study on the growth condition and the regulation of seed bearing of scotch pine have been carried in Honghaergi Hulunbaier district.It can be accelerated the growth of breast-height diameter in full light whereas the height growth is somewhat inhibited.Although scotch pine is a indigenous species in frigid temperature zones, the annual average temperature is less than -5℃ or less than 15℃ in June, that these factors are not favourable for the height growth.The precipitation in June is the major factor to affect the height growth of scotch pine, but it does'nt affect too much.When the rain and heat are synchronism, the growth in height is the fastest.Scotch pine begins its seed-bearing at 10 year old, and heavy crops at 30. The seed production is increased with the age, and the quality will be decreased over 80 years old. It is concerned with its breast diameter, height growth and the width of crown.When the stand canopy density is 0.5, the seed production in the unit area is the heightest. |
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