Regeneration, recovery and succession of a Pinus yunnanensis community five years after a mega-fire in central Yunnan, China
Regeneration, recovery and succession of a Pinus yunnanensis community five years after a mega-fire in central Yunnan, China
复制标题
中国云南中部特大火灾五年后云南松群落的再生、恢复和演替
DOI：
10.1016/j.foreco.2012.07.019
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发表时间：
2013-04
影响因子：
3.7
通讯作者：
Wang, Chong-Yun
中科院分区：
文献类型：
--
作者：
Wang, Huan-Chong;Peng, Ming-Chun;Wu, Zhao-Lu;Wang, Chong-Yun
中国云南中部曾经是万年青阔叶林的天下。经过长期的破坏性开发，包括农业开发，过度采伐木材和砍伐薪材，这些森林正在重新建立自己。大片地区现在主要是自然再生的针叶云南松林，它代表了万年青阔叶林重建的早期中间阶段。2006年，一场大火烧毁了约18.49平方公里的森林。松树又长回来了。为研究特大火灾后松属植物群落的更新动态和恢复过程，对火烧迹地和未火烧迹地的植物群落进行了调查，包括火烧迹地的云南松灌丛、未发生火烧迹地的云南松林、云南松与南方石栎混交林、长刺锥与亮叶石栎万年青阔叶林。以及云南松种植园。火灾后5年，在松灌丛中发现了大量的云南松幼苗和幼树以及一些需光的落叶和万年青阔叶树种。火灾后的频率分布的高度级是一个倒J型，代表非常好的再生。我们用空间换时间的方法来理解演替的方向和途径。该地区的演替趋势大致为：从松灌丛到松林，再到针阔混交林，再到万年青阔叶栎林。在演替早期，松属灌丛的植物丰富度和物种多样性低于演替中后期，但远高于松属种植园。结果表明，火烧后云南松的自然恢复比同树种的人工林更有效。大自然的进程超过了人类的干预。
Central Yunnan, China was once dominated by evergreen broad-leaved forests. After a long period of destructive exploitation including agriculture development, overlogging for timber and cutting for fuelwood, these forests are being allowed to reestablish themselves. A large area is now dominated by the conifer Pinus yunnanensis forest which has naturally regenerated and represents an early intermediate stage in the reestablishment of the evergreen broad-leaved forest. In 2006, a mega-fire burned approximately 18.49km2of this forest. The Pinus is growing back. To examine the process of regeneration dynamics and recovery of the Pinus community after the mega-fire, we investigated plant communities in burned and unburned areas, including a P. yunnanensis shrubland regenerated after the fire, a P. yunnanensis forest without fire occurrence, a P. yunnanensis and Lithocarpus mairei mixed forest, and a Castanopsis orthacantha and Lithocarpus dealbatus evergreen broad-leaved forest, as well as a plantation of P. yunnanensis. Abundant seedlings and saplings of P. yunnanensis and some light-demanding deciduous and evergreen broad-leaved tree species were found in the Pinus shrubland five years after the fire. The frequency distribution by height-classes after the fire was of an inverse-J type, representing very good regeneration. We used space-for-time substitution to obtain an understanding of the directions and pathways of the succession. The approximate successional trend in the area was from the Pinus shrubland to the Pinus forest, then to the mixed coniferous and evergreen broad-leaved Pinus–Lithocarpus forest, then to the evergreen broad-leaved Castanopsis–Lithocarpus forest. In the early successional stage, the floristic richness and species diversity of the Pinus shrubland had lower values as compared to those in the middle and late successional stages, but much higher than those of the Pinus plantation. Our results indicate that the natural recovery of P. yunnanensis after the fire was more efficient than that of a man-made forest of the same species. Nature’s process outpaced human intervention.
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影响因子：
2.8
作者：
Cindy Q. Tang;M. Ohsawa
通讯作者：
Cindy Q. Tang;M. Ohsawa
DOI：
10.5860/choice.28-2141
发表时间：
1990-06
期刊：
--
影响因子：
--
作者：
C. Oliver;B. C. Larson
通讯作者：
C. Oliver;B. C. Larson
影响因子：
0.4
作者：
P. Delcourt;H. Delcourt
通讯作者：
P. Delcourt;H. Delcourt
DOI：
10.1007/s11707-009-0057-x
发表时间：
2010-03
期刊：
Frontiers of Earth Science in China
影响因子：
--
作者：
Cindy Q. Tang
通讯作者：
Cindy Q. Tang
影响因子：
2
作者：
Cindy Q. Tang;Meifang Zhao;Xiao-shuang Li;M. Ohsawa;X. Ou
通讯作者：
Cindy Q. Tang;Meifang Zhao;Xiao-shuang Li;M. Ohsawa;X. Ou