The Potential of Tree Rings for the Study of Forest Succession in Southern Mexico
The Potential of Tree Rings for the Study of Forest Succession in Southern Mexico
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DOI：
10.1111/j.1744-7429.2008.00462.x
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发表时间：
2009-03-01
期刊：
影响因子：
2.1
通讯作者：
Martinez-Ramos, Miguel
中科院分区：
文献类型：
--
作者：
Brienen, Roel J. W.;Lebrija-Trejos, Edwin;Martinez-Ramos, Miguel
热带次生林演替的研究面临着很大的限制，由于演替的速度缓慢，监测过程耗时的任务。在次生林树木年轮的发生可能有助于扩大我们的知识，在这些系统的继承，并可能是有用的休耕断代的时序研究。在这里，我们研究树木年轮的潜力，研究森林演替采样70种沿着时间序列的干燥和潮湿的森林在墨西哥南部。根据木材解剖特征，我们估计约37%的物种提出了独特的年轮研究有用的年轮。总体而言，最大数量的戒指匹配以及基于面试的休耕年龄，但在某些网站，树木一贯较高的戒指数量，可能是由于错误的休耕年龄来自面试。最佳休耕年龄的估计，通过检查环先锋和nonpioneer物种。重建物种的建立日期显示，先锋和nonpioneer物种建立在继承早期，这两个群体的物种继续招募后多年。我们的研究清楚地表明，树木年轮分析是一个很有前途的工具，在热带次生林演替的研究。
Studies of tropical secondary forest succession face strong limitations due to the slow pace of succession and the time-consuming task of monitoring processes. The occurrence of tree rings in secondary forest trees may help expand our knowledge on succession in these systems and may be useful for fallow dating in chronosequence studies. We examine here the potential of tree rings to study forest succession by sampling 70 species along chronosequences of dry and wet forests in southern Mexico. Based on wood anatomical features, we estimated that about 37 percent of the species presented distinct growth rings useful for ring studies. Overall, maximum number of rings matched well the interview-based fallow ages but, at some sites, trees had consistently higher numbers of rings, probably due to errors in fallow ages derived from interviews. Best fallow age estimations were obtained by examining rings in both pioneer and nonpioneer species. Reconstruction of species' establishment dates revealed that pioneer and nonpioneer species establish early during succession, and that species of both groups continue to recruit after many years. Our study clearly shows that tree ring analysis is a promising tool for studies on secondary forest succession in the tropics.