| 大青沟森林群落演替预测研究 |
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| 引用本文： | 郑元润.大青沟森林群落演替预测研究[J].林业科学,1999(2):21-25. |
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| 作者姓名： | 郑元润 |
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| 作者单位： | 中国科学院植物研究所,北京,100093 |
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| 摘 要： | 依据３８个样地的演替资料，采用母树树冠下各物种幼苗、幼树及小径木的胸高断面积比例作为转移概率，用马尔可夫链描述了群落的演替过程，预测了达到平衡状态时各群落的组成状况，并运用３０年前后植物种盖度资料的对比，在较大的时空范围内阐明了大青沟残遗森林植物群落演替的动态过程与趋势。结果表明，在环境条件不发生较大变化的情况下，以水曲柳、蒙古栎为主的群落是较为稳定的群落，而为大果榆为主的群落波动较大。各个不同的群落在达到平衡状态时，其种类组成的数量关系将会发生不同程度的变化。
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| 关 键 词： | 森林群落 演替预测 大青沟 |
| 修稿时间： | 1997-07-17 |
SUCCISSION PREDICTION OF THE FOREST COMMUNITY IN DAQINGGOU,INNER MONGOLIA |
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| Zheng Yuanrun.SUCCISSION PREDICTION OF THE FOREST COMMUNITY IN DAQINGGOU,INNER MONGOLIA[J].Scientia Silvae Sinicae,1999(2):21-25. |
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| Authors: | Zheng Yuanrun |
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| Abstract: | On the basis of survey materials from 38 sample plots, the author regarded the basal area of breast height ratio of saplings and young trees under the mother trees as the transition probobility, predicated not only the composition of tree species on balance status, but also the dynamic process and trends of survived forest community in Daqinggou in longer periods and larger scales through the data comparison between present and 30 years ago, by means of the Markov succession model. The results show, if the environmental conditions keeping smoothly, the community which Quercus mongolica, Fraxinus mandshurica are main species are more stable, while the community which Ulmus macrocarpa is main species fluctuated greatly. The quantitative correlation of species composition in different communities in balance stutus will be changed variously. |
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| Keywords: | Forest community Succession prediction Daqinggou |
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