The productivity, metabolism and carbon cycle of two lowland tropical forest plots in south-western Amazonia, Peru
The productivity, metabolism and carbon cycle of two lowland tropical forest plots in south-western Amazonia, Peru
复制标题
秘鲁亚马逊流域西南部两片低地热带森林的生产力、新陈代谢和碳循环
DOI：
10.1080/17550874.2013.820805
复制
发表时间：
2013
影响因子：
1.5
通讯作者：
Malhi Y
中科院分区：
文献类型：
--
作者：
Malhi Y
背景：亚马逊河流域西部的森林被认为是更有活力的，更好地研究亚马逊河流域东部的森林，但一直没有全面的描述亚马逊河流域西部forest.Aims的碳循环：我们提出了两个森林地块的碳预算在坦博帕塔在东南部秘鲁，亚马逊河流域西部。特别是，我们提出的，第一次，在详细的碳收支的热带forest.Methods的季节变化：我们测量的主要组成部分的净初级生产力（NPP）和总的自养呼吸3-6 years.Results：的NPP为15.1 ± 0.8和14.2 ± 1.0 Mg C ha− 1 year −1，总初级生产力（GPP）为35.5 ± 3.6和34.5 ± 3.5 Mg C ha− 1 year −1，和碳利用效率（CUE）为0.42 ± 0.05和0.41 ± 0.05。NPP和CUE具有很大的季节性。结论：尽管土壤不同，两个样地的碳循环特征相似，最显着的差异是全新世洪泛区NPP向冠层的分配较高，向细根的分配较低。干湿过渡中最低值的出现时间表明，它们是由物候节律驱动的，而不是由水分胁迫直接驱动的。与亚马逊河流域东部潮湿低地贫瘠森林的结果相比，这些地块的GPP略高，但CUE和碳分配模式相似。
Background:The forests of western Amazonia are known to be more dynamic that the better-studied forests of eastern Amazonia, but there has been no comprehensive description of the carbon cycle of a western Amazonian forest.Aims:We present the carbon budget of two forest plots in Tambopata in south-eastern Peru, western Amazonia. In particular, we present, for the first time, the seasonal variation in the detailed carbon budget of a tropical forest.Methods:We measured the major components of net primary production (NPP) and total autotrophic respiration over 3–6 years.Results:The NPP for the two plots was 15.1 ± 0.8 and 14.2 ± 1.0 Mg C ha−1year−1, the gross primary productivity (GPP) was 35.5 ± 3.6 and 34.5 ± 3.5 Mg C ha−1year−1, and the carbon use efficiency (CUE) was 0.42 ± 0.05 and 0.41 ± 0.05. NPP and CUE showed a large degree of seasonality.Conclusions:The two plots were similar in carbon cycling characteristics despite the different soils, the most notable difference being high allocation of NPP to canopy and low allocation to fine roots in the Holocene floodplain plot. The timing of the minima in the wet–dry transition suggests they are driven by phenological rhythms rather than being driven directly by water stress. When compared with results from forests on infertile forests in humid lowland eastern Amazonia, the plots have slightly higher GPP, but similar patterns of CUE and carbon allocation.
登录
查看更多内容
影响因子：
9.4
作者：
Anderson, Liana O.;Malhi, Yadvinder;Phillips, Oliver
通讯作者：
Phillips, Oliver
影响因子：
5.2
作者：
Levy, PE;Jarvis, PG
通讯作者：
Jarvis, PG
影响因子：
11.6
作者：
T. Marthews;Y. Malhi;C. Girardin;J. S. Silva Espejo;L. Aragão;D. Metcalfe;J. Rapp;L. Mercado;R. Fisher;David R. Galbraith;J. Fisher;Norma Salinas-Revilla;A. Friend;N. Restrepo-Coupe;Richard J. Williams
通讯作者：
T. Marthews;Y. Malhi;C. Girardin;J. S. Silva Espejo;L. Aragão;D. Metcalfe;J. Rapp;L. Mercado;R. Fisher;David R. Galbraith;J. Fisher;Norma Salinas-Revilla;A. Friend;N. Restrepo-Coupe;Richard J. Williams
影响因子：
4.9
作者：
Feldpausch, T. R.;Banin, L.;Lloyd, J.
通讯作者：
Lloyd, J.
影响因子：
1.9
作者：
GENTRY, AH
通讯作者：
GENTRY, AH