| 马尾松林间伐前后养分动态的研究 |
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| 引用本文： | 刘煊章,文仕知,蔡宝玉.马尾松林间伐前后养分动态的研究[J].中南林业科技大学学报,1994(2). |
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| 作者姓名： | 刘煊章 文仕知 蔡宝玉 |
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| 作者单位： | Liu Xuanzhang; Wen Shizhi; Cai Baoyu(Dept. of Non-timber Forestry) (Dept. of Forestry，CSFU) |
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| 摘 要： | 根据定位观测数据，对马尾松人工中龄林间伐前后的养分变化状况进行了分析研究．结果表明，通过间伐，林木各器官的养分含量均发生了明显的变化．林分养分的积累量，随着林分生物量的变化而变化．间伐以前，主要营养元素在树冠生物量中积压最多．间伐以后，主要营养元素在树干生物量中积累最多。说明间伐可以增加树干的干物质积累，对提高林木产量具有重要意义．
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| 关 键 词： | 马尾松 人工林 间伐 营养成分 动态 |
Research on Nutrent Kinetic States of Pinus massoniana Plantation around Intermediate Cutting |
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| Liu Xuanzhang, Wen Shizhi, Cai Baoyu.Research on Nutrent Kinetic States of Pinus massoniana Plantation around Intermediate Cutting[J].Journal of Central South Forestry University,1994(2). |
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| Authors: | Liu Xuanzhang Wen Shizhi Cai Baoyu |
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| Abstract: | On the basis of the data from positioning observations,the nutrient kinetic states of Pinus massoniana plantation around intermediate cutting are analysed and studied.The result shows that the nutrient content in tree organs changes obviously after thinning and the nutrient accumulations varies with thestand biomass. Before thinning the main nutrient elements are mostly accumulated in canopy biomass whileafter thinning the main nutrient elements are mostly accumulated in stem biomass This indicates thatintermediate cutting can increase the dry matter accumulation of stem and has an important aignificance inraiaing the production of forest products. |
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| Keywords: | Pinus massoniana plantation intermediate cutting nutrition constituents kinetic state |
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