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首页> 外文期刊>Ecological research >Secondary succession of plant communities in a subtropical mountainous region of SW China
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Secondary succession of plant communities in a subtropical mountainous region of SW China

机译：中国西南亚热带山区植物群落的次生演替

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摘要

Since 1985, originally forested mountainous areas of China have been allowed to return to their natural state after years of exploitation including agriculture, development, and logging. The reforms began earlier in less accessible locations, so that today the successional process is more advanced there. The vegetation in Luquan, Qiongzhusi, and Xishan near Kunming, central Yunnan, exhibits, in a limited area, a range of stages of plant succession that are widely encountered throughout the broader region, and thus affords a special opportunity for a comprehensive study. We analyzed the successional sequence of these various plant communities. They ranged from pioneer coniferous and/or pioneer deciduous broad-leaved stands to pre-mature semi-humid evergreen broad-leaved stands, through mixed coniferous and broad-leaved or mixed deciduous and evergreen broad-leaved stands. The succession proceeded from pioneer coniferous Pinus and Keteleeria, and deciduous Platycarya and Alnus, to late-successional evergreen broad-leaved Cyclobalanopsis and Castanopsis. Two regeneration types of woody species in either the early successional (15-50 years), the mid-successional (40-80 years), or the late-successionalrn(80-180 years) stage were classified. Relatively high species diversity was found in the seral phase at the three study sites. The late-successional stage was commonest where human disturbance was least evident. Poor soil chemical properties under pioneer Pinus were seen as a limitation to plant growth, while the abundance of Alnus at the early stage led to an improved level of organic matter and nitrogen.
机译：自1985年以来，经过多年的开发，包括农业，发展和伐木业，允许中国原始森林山区恢复自然状态。改革是在较不方便到达的地方开始的较早，因此今天的继任程序在此更加先进。云南中部昆明市附近的鹿泉，琼竹寺和西山的植被在有限的区域内呈现出一系列的植物演替阶段，这些阶段在整个更广泛的地区中都广泛遇到，因此为全面研究提供了特殊的机会。我们分析了这些不同植物群落的演替顺序。从先锋针叶树和/或先锋落叶阔叶林到早熟的半湿性常绿阔叶林，到混合的针叶阔叶林或落叶和常绿阔叶林。继承从先驱的针叶松和Keteleeria，到落叶的桔梗和Alnus，再到后期成功的常绿阔叶青冈和栗。对木本物种的两种更新类型进行了分类，分别是早期演替（15-50年），演替中期（40-80年）或演替后期（80-180年）。在三个研究地点的浆液期发现相对较高的物种多样性。成功的后期是最常见的阶段，其中人为干扰最少。先锋松下的土壤化学性质差被认为是植物生长的限制，而早期的大量nu木则导致有机质和氮水平的提高。

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  • 来源
    《Ecological research》 |2010年第1期|149-161|共13页
  • 作者

    Cindy Q. Tang; Mei-Hua Zhao; Xiao-Shuang Li; Masahiko Ohsawa; Xiao-Kun Ou;

  • 作者单位

    Institute of Ecology and Geobotany, Yunnan University, 650091 Kunming, China Institute of Environmental Studies, School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, 277-8563 Kashiwa, Japan;

    Institute of Ecology and Geobotany, Yunnan University, 650091 Kunming, China;

    Xishuangbanna Tropical Botanical Garden, Chinese Academy of Science, 650223 Kunming, China Graduate School of the Chinese Academy of Science, 100049 Beijing, China;

    Institute of Environmental Studies, School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, 277-8563 Kashiwa, Japan;

    Institute of Ecology and Geobotany, Yunnan University, 650091 Kunming, China;

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  • 正文语种 eng
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  • 关键词

    yunnan; succession pathways; species diversity; chemical properties of soils; degree of naturalness;

    机译：云南;继承途径;物种多样性;土壤的化学性质;自然程度;

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