| 桦树柠条混交林生长效应的试验 |
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| 引用本文： | 李得庆,白永强. 桦树柠条混交林生长效应的试验[J]. 防护林科技, 2008, 0(3): 17-18 |
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| 作者姓名： | 李得庆 白永强 |
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| 作者单位： | 1. 青海省互助县林业调查设计队,青海,互助,810500
2. 宁夏林业研究所 |
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| 摘 要： | 通过对桦树柠条混交林及桦树纯林、柠条纯林的林木生长量、林分生物量、根系分布规律等的调查研究，结果表明，混交林的桦树高生长量比纯林桦树提高47．6％～119．5％，胸径提高44．1％～143．1％；混交林的林木生长量及单株生物量均高于纯林；混交林中桦树根系分布比纯林均匀，使林木充分利用土壤养分、水分、空间，利于林木的生长。
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| 关 键 词： | 桦树 柠条 混交林 纯林 生长效应 |
Growth Effect of Mixed Forest of Betula platyphylla and Caragana microphylla Lam. |
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| LI De-qing,BAI Yong-qiang. Growth Effect of Mixed Forest of Betula platyphylla and Caragana microphylla Lam.[J]. Protection Forest Science and Technology, 2008, 0(3): 17-18 |
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| Authors: | LI De-qing BAI Yong-qiang |
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| Affiliation: | LI De-qing , BAI Yong-qiang ( 1. Forestry Investigation Design Team, Huzhu County, Qinghai Prov. , Huzhu 810500, Qinghai, China; 2. Forestry Insti. , Ningxia Hui Autonomous Region) |
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| Abstract: | Growth of timber,stand biomass,root system distribution law of mixed forest of Betula platyphylla and Caragana microphylla Lam.were investigated.Result shows that height growth and DBH of Betula platyphylla mixed forest increases by 47.6%-119.5% and 44.1%-143.1% than that of Betula platyphylla pure forest;tree biomass and individual biomass of mixed forest are higher than that of pure forest.Root system distribution of Betula platyphylla in mixed forest is more even than that of pure forest,thus forest tree fully use the soil nutrient,water,and space.It is fovor of growth forest. |
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| Keywords: | Betula platyphylla Caragana microphylla Lam. mixed forest pure forest growth effect |
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