Divergence of hydraulic traits among tropical forest trees across topographic and vertical environment gradients in Borneo.
Divergence of hydraulic traits among tropical forest trees across topographic and vertical environment gradients in Borneo.
复制标题
DOI：
10.1111/nph.18280
复制
发表时间：
2022-09
期刊：
影响因子：
9.4
通讯作者：
Rowland, Lucy
中科院分区：
文献类型：
--
作者：
Bittencourt, Paulo Roberto de Lima;Bartholomew, David C.;Banin, Lindsay F.;Bin Suis, Mohamed Aminur Faiz;Nilus, Reuben;Burslem, David F. R. P.;Rowland, Lucy
关键词：
细微尺度的地形-土壤梯度在热带森林中很常见，并驱动物种的空间周转和森林结构和功能的显着变化。我们评估了热带树种的水力特征如何与沿这种梯度的垂直和水平空间生态位专门化有关。沿着婆罗洲气候均匀的地形-土壤梯度，对13种龙脑香科植物不同高度的156株个体的6个关键水力性状进行了测定。我们研究了水力特征如何与生境、树高以及它们在该坡度上的交互作用有关。沙质土壤上树木的抗栓性增加，但不随树高的增加而变化。相反，在沙化土壤上，水分输送能力随着树高的增加而增加。生境和高度只对水力效率有交互作用，从粘粒丰富的土壤到沙质土壤，高度的斜率从正到负变化。生境类型影响除木材密度外的所有性状的性状-性状关系。我们的数据表明，龙须草水力性状的变化是由地形-土壤条件、树高和分类同一性共同驱动的。我们的工作表明，水力特性在形成跨越地形-土壤和垂直梯度的森林结构方面发挥着重要作用，并可能有助于龙脑草物种之间的生态位专门化。
Fine‐scale topographic–edaphic gradients are common in tropical forests and drive species spatial turnover and marked changes in forest structure and function. We evaluate how hydraulic traits of tropical tree species relate to vertical and horizontal spatial niche specialization along such a gradient. Along a topographic–edaphic gradient with uniform climate in Borneo, we measured six key hydraulic traits in 156 individuals of differing heights in 13 species of Dipterocarpaceae. We investigated how hydraulic traits relate to habitat, tree height and their interaction on this gradient. Embolism resistance increased in trees on sandy soils but did not vary with tree height. By contrast, water transport capacity increased on sandier soils and with increasing tree height. Habitat and height only interact for hydraulic efficiency, with slope for height changing from positive to negative from the clay‐rich to the sandier soil. Habitat type influenced trait–trait relationships for all traits except wood density. Our data reveal that variation in the hydraulic traits of dipterocarps is driven by a combination of topographic–edaphic conditions, tree height and taxonomic identity. Our work indicates that hydraulic traits play a significant role in shaping forest structure across topographic–edaphic and vertical gradients and may contribute to niche specialization among dipterocarp species.
登录
查看更多内容
DOI：
10.1098/rstb.2017.0315
发表时间：
2018-10-08
期刊：
Philosophical transactions of the Royal Society of London. Series B, Biological sciences
影响因子：
--
作者：
Eller CB;Rowland L;Oliveira RS;Bittencourt PRL;Barros FV;da Costa ACL;Meir P;Friend AD;Mencuccini M;Sitch S;Cox P
通讯作者：
Cox P
影响因子：
9.4
作者：
Cosme, Luiza H. M.;Schietti, Juliana;Oliveira, Rafael S.
通讯作者：
Oliveira, Rafael S.
影响因子：
6.4
作者：
Banin, L.;Feldpausch, T. R.;Lewis, S. L.
通讯作者：
Lewis, S. L.
影响因子：
1.5
作者：
Dent, Daisy H.;Burslem, David F. R. P.
通讯作者：
Burslem, David F. R. P.
影响因子：
4.8
作者：
Baltzer, JL;Thomas, SC;Burslem, DFRP
通讯作者：
Burslem, DFRP