| 油松飞播林生长规律的研究 |
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| 引用本文： | 杨澄.油松飞播林生长规律的研究[J].西北林学院学报,1996,11(4):24-27. |
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| 作者姓名： | 杨澄 |
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| 作者单位： | 西北林学院森林资源保护系 |
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| 摘 要： | 运用灰色模型ＧＭ（１，１）建立了油松飞播林年龄与胸径、树高、单株材积的生长模型。结果发现：在幼龄林期内，林木生长有３次减缓的波动，波谷分别出现在第９、１４、１９年时。即从第９年起，基本上有每５ａ１次周期性减缓的变化
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| 关 键 词： | 油松 飞播林 生长规律 |
OnGrowthRhythemsofAerialSeedingForestofPinustabulaeformisCar. |
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| YangCheng.OnGrowthRhythemsofAerialSeedingForestofPinustabulaeformisCar.[J].Journal of Northwest Forestry University,1996,11(4):24-27. |
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| Authors: | YangCheng |
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| Abstract: | GrowthmodelsregardingaerialseedingforestageofPinustabulaeformisCarr.withdiameteratbreastheight,treeheightaswelasvolumeofpertreewereestablishedbyusingthegreymodel(1,1).Theresultsshowedthatthreefluctuationsofslowingdownoftreegrowthtookplacewithinyounggrowthperiod.Fluctuationvaleysoccurredinthe9th,14thand19thyearsrespedtively.Thatistosay,fromthe9thyearperiodicslowingdownhappenedeveryfiveyears,whichprovidedtheoreticalbasisfortheintermediatecuting. |
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| Keywords: | PinustabulaeformisCar aerialseedingforest growthrhythem |
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