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| 基于林层指数的青椆混交林林层结构研究 | |
| 引用本文： | 吕勇,臧颢,万献军,邓志昂,李建军.基于林层指数的青椆混交林林层结构研究[J].林业资源管理,2012(3):81-84. |
| 作者姓名： | 吕勇 臧颢 万献军 邓志昂 李建军 |
| 作者单位： | 1. 中南林业科技大学,长沙,410004 2. 沅江市林业局,湖南益阳,413000 3. 中南林业科技大学,长沙410004;中国林业科学研究院资源信息研究所,北京100091 |
| 基金项目： | 国家自然科学基金，湖南省自然科学基金重点项目 |
| 摘 要： | 分析林层比的优劣,研究其改进的方法,提出林层指数的量化指标,并应用于南洞庭湖龙虎山林场青椆混交林的林层结构研究。结果表明:在保留了林层比的简便和较好预测效果以及数据易于获得等特点的基础上,林层指数增加了对林层结构多样性的表达,能更好地描述林分的垂直分布格局。同时,对3块样地的青椆混交林林层分析显示,林层结构从复杂到简单依次为P2>P3>P1。而从树种方面分析显示,青椆最为稳定,更新良好;白栎比较稳定,但部分地区可能因自然或人为因素,使下层木受到破坏;枫香与苦槠基本上没有下层木,更新困难,需要加强管护,并通过人为干预以维持其稳定的生长。 |
| 关 键 词： | 林层比 林层指数 青椆 |
Storey Structure Study of Cyclobalanopsis myrsinaefolia Mixed Stand Based on Storey Index |
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| LU Yong , ZANG Hao , WAN Xianjun , DENG Zhiang , LI Jianjun.Storey Structure Study of Cyclobalanopsis myrsinaefolia Mixed Stand Based on Storey Index[J].Forest Resources Management,2012(3):81-84. | |
| Authors: | LU Yong ZANG Hao WAN Xianjun DENG Zhiang LI Jianjun |
| Institution: | 1,3(1.Central South University of Forestry and Technology,Changsha 410004;2.Yuanjiang Forestry Bureau,Yiyang 413000;3.Resource Information Research Institute of Chinese Academy of Forestry,Beijing 100091,China) |
| Abstract: | According to the analysis of stand level rate,this paper presented the storey index after studying the method that can improve stand level rate,and the new parameter was applicatied for the storey structure study of Cyclobalanopsis myrsinaefolia mixed stand in Longhushan forest farm of Hunan.The practical study indicated that based on keeping many characteristics of stand level rate such as simpleness,good promises,easiness to obtain data,the storey structure expressed the diversity of storey structure,and it could describe the vertical distribution pattern of stand better.The analysis showed that the order of the three sample plots of Cyclobalanopsis myrsinaefolia mixed stand ’s storey structure from complex to simple was: P2>P3>P1,and the analysis of species showed that: Cyclobalanopsis myrsinaefolia was the most stable,its regeneration was fine;Quercus fabri was stable,but its understorey was harmed in some place by natural or artificial factor;Liquidambar formosana and Castanopsis sclerophyllus didn’t have understory,their regeneration is bad,they need to be protected,and keep growing by human’s help. |
| Keywords: | stand level rate storey index Cyclobalanopsis myrsinaefolia |
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