Persistent effects of fragmentation on tropical rainforest canopy structure after 20 yr of isolation
Persistent effects of fragmentation on tropical rainforest canopy structure after 20 yr of isolation
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DOI：
10.1002/eap.1952
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发表时间：
2019-07-16
影响因子：
5
通讯作者：
Brancalion, Pedro H. S.
中科院分区：
文献类型：
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作者：
Almeida, Danilo R. A.;Stark, Scott C.;Brancalion, Pedro H. S.
评估破碎化对热带森林地上结构的持续影响对于了解土地利用变化对碳储存和其他生态系统功能的影响至关重要。我们在巴西亚马逊中部的森林碎片生物动力学项目 (BDFFP) 中，经过 22 年以上的碎片隔离，通过将便携式冠层剖面激光雷达和机载激光扫描调查收集的冠层变量与长期森林清查相结合，研究了边缘距离和碎片大小对冠层结构、地上木质生物量 (AGB) 和 AGB 周转的影响。大碎片边缘（> 10公顷）和小碎片内部（> 10公顷）的森林高度下降了30％
Assessing the persistent impacts of fragmentation on aboveground structure of tropical forests is essential to understanding the consequences of land use change for carbon storage and other ecosystem functions. We investigated the influence of edge distance and fragment size on canopy structure, aboveground woody biomass (AGB), and AGB turnover in the Biological Dynamics of Forest Fragments Project (BDFFP) in central Amazon, Brazil, after 22+ yr of fragment isolation, by combining canopy variables collected with portable canopy profiling lidar and airborne laser scanning surveys with long-term forest inventories. Forest height decreased by 30% at edges of large fragments (>10 ha) and interiors of small fragments (