| 贵州赤水河流域毛竹林不同径级类型林分结构指标变化 |
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| 引用本文： | 张喜,张佐玉,崔迎春,刘兰,霍达.贵州赤水河流域毛竹林不同径级类型林分结构指标变化[J].世界竹藤通讯,2014,12(4):1-6. |
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| 作者姓名： | 张喜 张佐玉 崔迎春 刘兰 霍达 |
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| 作者单位： | 贵州省林业科学研究院 贵州贵阳 550011 |
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| 基金项目： | 贵州省科技厅重大专项（2007-6002-030201）;贵州省林业厅标准化项目（2011-03）. |
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| 摘 要： | 为研究不同径级毛竹林分结构指标变化规律,在贵州省赤水河流域建立了86个调查样地。调查结果表明,在毛竹林部分径级类型的乔木层、灌木层与草本层内,植物形态指标、多样性指数和生物量指标差异显著。随着毛竹林径级增大,毛竹和杂木平均高度增加、密度下降,竹木株数比降低;毛竹和杂木生物量增大,灌木层植物生物量减小,草本层植物和枯落物及总生物量增大,灌木、草本与枯落物生物量比率降低;毛竹林分整齐度和均匀度升高。相对于中、高径级毛竹林,提高低径级毛竹林平均胸径、高度、生物量和降低密度是高产培育的主要目标;伐除老竹、留大笋、砍小竹、蓄竹均匀分布是具体措施。贵州高原山地毛竹林丰产培育适宜竹-木混交,乔-灌-草层植物立体经营。
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| 关 键 词： | 毛竹林 径级 植物多样性指数 生物量 贵州赤水河流域 |
Changes in Structural Indicators for Moso Forest with Different DBH Classes in Chishui River Basin,Guizhou Province |
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| Zhang Xi,Zhang Zuoyu,Cui Yingchun,Liu Lan,Huo Da.Changes in Structural Indicators for Moso Forest with Different DBH Classes in Chishui River Basin,Guizhou Province[J].World Bamboo and Rattan,2014,12(4):1-6. |
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| Authors: | Zhang Xi Zhang Zuoyu Cui Yingchun Liu Lan Huo Da |
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| Institution: | Guizhou Provincial Academy of Forestry, Guiyang 550011, Guizhou, China |
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| Abstract: | In order to analyze the changing law of structure indicators of Moso forest with different DBHs, 86 survey plots were established in Chishui River Basin, Guizhou Province. The results showed that morphological indicators, diversity indices, and biomass indicators of tree layer, shrub layer and herb layer are significantly different in some DBH classes. As the DBH increases, the average height of bamboo and non- bamboo wood rises, while their average ~density and clump ratio of bamboo and non-bamboo wood reduce. As the biomass of bamboo and non-bamboo wood increases, the biomass of the shrub layer reduces, the herbs with litter and total biomass rise and the ratio of shrub and herb to litters decreases in biomass. The uniformity and evenness of Moso stand rise. Compared with Moso forest with middle and high DBHs, improving the average DBH, height, biomass and reducing the density are the primary goal for high yield cultivation, while cutting old and small bamboo and leaving large shoots and bamboo evenly distributed are specific measures. High yield cultivation of Moso forestis suitable for mixed bamboo and non-bamboo wood, and for three- dimensional operation of tree-shrub-herb layers in the Guizhou Plateau. |
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| Keywords: | Moso forest DBH class diversity index biomass Chishui River Basin Guizhou province |
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