| 天然林林龄的模拟估算及案例 |
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| 引用本文： | 王殿中,孙国清,过志峰.天然林林龄的模拟估算及案例[J].生态环境,2008,17(5). |
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| 作者姓名： | 王殿中 孙国清 过志峰 |
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| 作者单位： | 1. 遥感科学国家重点实验室,北京,100101;中国科学院研究生院,北京,100039
2. 遥感科学国家重点实验室,北京,100101 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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国家自然科学基金
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| 摘 要： | 林龄是森林生态系统的一个重要特征,具有生态学意义.但是目前生态学调查中对天然林林龄的估算方法有一定缺陷.在特定的环境条件下,森林有着相应的演替过程.已有林窗研究表明.长白山森林是按照一定次序演替,森林的径级结构也是有规律可循的.由于总是缺乏足够的长期系统观测数据,因此作者采用数值模拟作为替代方法.应用校正过的林窗模型模拟0～600 a的森林演替序列,比较对长白山原始天然林的采样的结果,发现目前的林龄最接近400 a.这个估测结果可以从本地区历史资料记载得到印证.
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| 关 键 词： | 林龄 林窗模型 径级分布 |
A case study on estimating natural forest age with DBH distribution and forest growth model |
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| Wang Dianzhong,Sun Guoqing,Guo Zhufeng.A case study on estimating natural forest age with DBH distribution and forest growth model[J].Ecology and Environmnet,2008,17(5). |
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| Authors: | Wang Dianzhong Sun Guoqing Guo Zhufeng |
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| Institution: | Wang Dianzhong1,2,Sun Guoqing 1,Guo Zhufeng 1 1. Key Laboratory of Remote Sensing Sciences,Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences , Bei-jing Normal University,Beijing 100101,China,2. Graduate School of Chinese Academy of Sciences,Beijing 100039 |
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| Abstract: | Forest age is a critical ecological parameter to characterize the status of a forest ecosystem. However,there is deficiency in present methods for estimating natural forest age. In forest gap theory,a forest can be taken as an environment dependent community in certain succession stage. Forest gap model studies have proved that forests in Changbai Mountain follow its own succession sequence. During the succession process,percentage of diameter at breast height(DBH) class changes. Because long term ecologica... |
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| Keywords: | forest age forest gap model DBH class distribution |
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