| 石栎、青冈栎和杉木混交林分的空间结构 |
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| 引用本文： | 刘畅,邓送求,方顺清,关庆伟.石栎、青冈栎和杉木混交林分的空间结构[J].林业科技开发,2011,25(1):35-39. |
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| 作者姓名： | 刘畅 邓送求 方顺清 关庆伟 |
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| 作者单位： | 1. 南京林业大学森林资源与环境学院,南京,210037
2. 江苏省宜兴市林场 |
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| 基金项目： | 国家林业公益项目“南方低效生态公益林改造与恢复技术研究与示范”(编号:200904015) |
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| 摘 要： | 为了弄清优质林分的结构特征,应用传统林分结构因子分析方法,配合混交度、角尺度、大小比数3个林分空间结构参数,分析了位于江苏宜兴近郊的自然保护区内宜兴小黑沟石栎、青冈栎、杉木混交林的空间结构特征。结果表明:石栎、青冈栎、杉木混交林物种丰富度较高,乔木层共出现9个树种,径级结构分布连续,群落垂直结构特征明显,可分为3个林层;林分平均混交度为0.516,处于强度混交状态;林分平均角尺度为0.482,属于随机分布;林分平均大小比数为0.482,有超过40%的林木处于优势状态;石栎、青冈栎和杉木种群优势度明显,群落暂时处于相对稳定状态。
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| 关 键 词： | 自然保护区 优质林 空间结构 |
Spatial structure analysis on mixed forest of Tan oak, blue Japanese oak and Cunninghamia lanceolata in Xiaoheigou of Yixing County |
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| LIU Chang,DENG Song-qiu,FANG Shun-qing,GUAN Qing-wei.Spatial structure analysis on mixed forest of Tan oak, blue Japanese oak and Cunninghamia lanceolata in Xiaoheigou of Yixing County[J].China Forestry Science and Technology,2011,25(1):35-39. |
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| Authors: | LIU Chang DENG Song-qiu FANG Shun-qing GUAN Qing-wei |
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| Institution: | LIU Chang,DENG Song-qiu,FANG Shun-qing,GUAN Qing-wei College of Forest Resources and Environment,Nanjing Forestry University,Nanjing 210037,China |
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| Abstract: | In order to understand the structural characteristics of high-quality forest,applied the traditional stand structure indexes combining with mingling,neighborhood pattern,neighborhood comparison and opening degree to have analyzed spatial structure of mixed rock oak and fir in Black Trench in a natural conservation in the suburbs of Yixing,Jiangsu Province.The results showed that: There are rich species in the oak trees and firs mixed forest.There are 9 stocks in the tree layers,the diameter structure of com... |
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| Keywords: | natural conservation high-quality forest spatial structure |
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