| 樟子松天然母树林疏伐强度与种子产量的关系 |
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| 引用本文： | 许广岐,臧志安.樟子松天然母树林疏伐强度与种子产量的关系[J].东北林业大学学报,1994,22(5):32-37. |
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| 作者姓名： | 许广岐 臧志安 |
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| 作者单位： | 大兴安岭林业科学研究所，大兴安岭十八站林业局 |
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| 摘 要： | 通过对樟子松天然母树林的４种不同疏伐强度标准地的林木开花结实与气象因子观测，进行了疏伐强度对母树林种子产量影响的研究。结果表明：（１）疏伐可有效的促进母树林的开花结实；（２）疏伐强度与母树林单位面积产种量相关密切；（３）疏伐促进林木结实其主要影响因素是光照，地面温度等气象因子；（４）樟子松天然母树林定株疏伐的最佳密度为１９０株ｈｍ＾２。
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| 关 键 词： | 樟子松 天然母树林 疏伐强度 种子 |
THE STUDY ON THE RELATION BETWEEN THINNING INTENSITY AND SEED PRODUCTION OF THE NATURAL SCOTCH PINE SEED FOREST |
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| Xu Guangqi,Zhu Wanchang,Mu Zhaojun, Chong Jianhua.THE STUDY ON THE RELATION BETWEEN THINNING INTENSITY AND SEED PRODUCTION OF THE NATURAL SCOTCH PINE SEED FOREST[J].Journal of Northeast Forestry University,1994,22(5):32-37. |
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| Authors: | Xu Guangqi Zhu Wanchang Mu Zhaojun Chong Jianhua |
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| Institution: | Xu Guangqi;Zhu Wanchang;Mu Zhaojun; Chong Jianhua(Daxing'anling Foresry Science Research Institute)Zang Zhi an;Chai Yuechen(Shibazhan Forestry Bureau) |
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| Abstract: | Through observing flower,seed bearing of the stands in four differentthinning standard lands of the natural scotch pine seed forests and weatherfactors,tpe study that thinning could affect seed production of seed forests wasdone.The result was:(1)The thinning could improve mother treesto flower andto seed bear;(2)The thinning intensity and seed production per unit area wereclosely interrelated;(3)The main effective factors of thinning to improve thestands seed bearing were light,ground temperature and other weather factors;(4)The best thinning density of the natural scotch pine seed forests was190ind/hm2. |
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| Keywords: | Scotch pine Natural seed forest Thinning intensity Seed bearing |
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