Recovery of logged forest fragments in a human-modified tropical landscape during the 2015-16 El Niño.
Recovery of logged forest fragments in a human-modified tropical landscape during the 2015-16 El Niño.
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DOI：
10.1038/s41467-020-20811-y
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发表时间：
2021-03-09
影响因子：
16.6
通讯作者：
Coomes DA
中科院分区：
文献类型：
--
作者：
Nunes MH;Jucker T;Riutta T;Svátek M;Kvasnica J;Rejžek M;Matula R;Majalap N;Ewers RM;Swinfield T;Valbuena R;Vaughn NR;Asner GP;Coomes DA
在过去的40年里，东南亚大约有50%的低地雨林变成了油棕和其他种植园，剩下的大部分森林被严重砍伐。对于碎片化如何影响恢复以及气候变化是否会阻碍恢复，人们知之甚少。在这里，我们使用重复的机载激光雷达调查，跨越2015-16年厄尔尼诺Niño南方涛动事件，测量了马来西亚婆罗洲3300公顷的再生热带森林的树冠高度增长，跨越了伐木强度梯度。我们发现干旱导致落叶和树枝掉落增加。除了靠近油棕种植园外，在大量砍伐后再生的矮林继续生长，尽管蒸发需求较高。人工林的边缘效应向森林延伸了300多米。山顶和斜坡上的森林生长尤其受到破碎化和干旱的影响，但即使位于油棕种植园40米范围内的河岸森林在干旱期间也失去了树冠高度。我们的研究结果表明，人工林景观中的小块被砍伐的森林将缓慢恢复，特别是在ENSO事件变得越来越频繁的情况下。目前尚不清楚人工林景观中的热带森林碎片是否具有抗旱能力。在这里，作者分析了2015-16年El Niño事件在婆罗洲测井强度梯度上的激光雷达和地面数据。虽然再生林继续生长，但油棕人工林附近的冠层高度下降，并且强烈的边缘效应延伸到至少300 m外。
The past 40 years in Southeast Asia have seen about 50% of lowland rainforests converted to oil palm and other plantations, and much of the remaining forest heavily logged. Little is known about how fragmentation influences recovery and whether climate change will hamper restoration. Here, we use repeat airborne LiDAR surveys spanning the hot and dry 2015-16 El Niño Southern Oscillation event to measure canopy height growth across 3,300 ha of regenerating tropical forests spanning a logging intensity gradient in Malaysian Borneo. We show that the drought led to increased leaf shedding and branch fall. Short forest, regenerating after heavy logging, continued to grow despite higher evaporative demand, except when it was located close to oil palm plantations. Edge effects from the plantations extended over 300 metres into the forests. Forest growth on hilltops and slopes was particularly impacted by the combination of fragmentation and drought, but even riparian forests located within 40 m of oil palm plantations lost canopy height during the drought. Our results suggest that small patches of logged forest within plantation landscapes will be slow to recover, particularly as ENSO events are becoming more frequent. It is unclear whether tropical forest fragments within plantation landscapes are resilient to drought. Here the authors analyse LiDAR and ground-based data from the 2015-16 El Niño event across a logging intensity gradient in Borneo. Although regenerating forests continued to grow, canopy height near oil palm plantations decreased, and a strong edge effect extended up to at least 300 m away.
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影响因子：
2.6
作者：
Gray, Claudia L.;Slade, Eleanor M.;Mann, Darren J.;Lewis, Owen T.
通讯作者：
Lewis, Owen T.
影响因子：
64.8
作者：
Cook-Patton, Susan C.;Leavitt, Sara M.;Griscom, Bronson W.
通讯作者：
Griscom, Bronson W.
影响因子：
13.5
作者：
Coomes, David A.;Dalponte, Michele;Qie, Lan
通讯作者：
Qie, Lan
影响因子：
5.9
作者：
Asner, Gregory P.;Brodrick, Philip G.;Coomes, David A.
通讯作者：
Coomes, David A.
影响因子：
9.4
作者：
Cosme, Luiza H. M.;Schietti, Juliana;Oliveira, Rafael S.
通讯作者：
Oliveira, Rafael S.