Forest understorey communities respond strongly to light in interaction with forest structure, but not to microclimate warming

被引：54

作者：

De Pauw, Karen ^{[1
]}

Sanczuk, Pieter ^{[1
]}

Meeussen, Camille ^{[1
]}

Depauw, Leen ^{[1
]}

De Lombaerde, Emiel ^{[1
]}

Govaert, Sanne ^{[1
]}

Vanneste, Thomas ^{[1
]}

Brunet, Jorg ^{[2
]}

Cousins, Sara A. O. ^{[3
]}

Gasperini, Cristina ^{[4
]}

Hedwall, Per-Ola ^{[2
]}

Iacopetti, Giovanni ^{[4
]}

Lenoir, Jonathan ^{[5
]}

Plue, Jan ^{[6
]}

Selvi, Federico ^{[4
]}

Spicher, Fabien ^{[5
]}

Uria-Diez, Jaime ^{[2
]}

Verheyen, Kris ^{[1
]}

Vangansbeke, Pieter ^{[1
]}

De Frenne, Pieter ^{[1
]}

机构：

[1] Univ Ghent, Fac Biosci Engn, Dept Environm, Forest & Nat Lab, Geraardsbergsesteenweg 267, B-9090 Melle Gontrode, Belgium

[2] Swedish Univ Agr Sci, Southern Swedish Forest Res Ctr, Box 190, S-23422 Lomma, Sweden

[3] Stockholm Univ, Dept Phys Geog, Landscapes Environm & Geomat, Svante Arrhenius Vag 8, S-10691 Stockholm, Sweden

[4] Univ Florence, Dept Agr Food Environm & Forestry, Ple Cascine 28, I-50144 Florence, Italy

[5] Univ Picardie Jules Verne, CNRS, UMR 7058, Ecol & Dynam Syst Anthropises EDYSAN, 1 Rue Louvels, F-80000 Amiens, France

[6] IVL Swedish Environm Inst, Valhallavagen 81, S-11428 Stockholm, Sweden

来源：

NEW PHYTOLOGIST | 2022年 / 233卷 / 01期

基金：

欧洲研究理事会;

关键词：

climate change experiment; forest specialists; forest structure; forest understorey; functional traits; generalists; light; microclimate; CLIMATE-CHANGE; TEMPERATE FORESTS; SEASONAL PATTERNS; DECIDUOUS-FOREST; PLANT-RESPONSES; HERB LAYER; R PACKAGE; MANAGEMENT; ECOLOGY; GROWTH;

D O I：

10.1111/nph.17803

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Forests harbour large spatiotemporal heterogeneity in canopy structure. This variation drives the microclimate and light availability at the forest floor. So far, we do not know how light availability and sub-canopy temperature interactively mediate the impact of macroclimate warming on understorey communities. We therefore assessed the functional response of understorey plant communities to warming and light addition in a full factorial experiment installed in temperate deciduous forests across Europe along natural microclimate, light and macroclimate gradients. Furthermore, we related these functional responses to the species' life-history syndromes and thermal niches. We found no significant community responses to the warming treatment. The light treatment, however, had a stronger impact on communities, mainly due to responses by fast-colonizing generalists and not by slow-colonizing forest specialists. The forest structure strongly mediated the response to light addition and also had a clear impact on functional traits and total plant cover. The effects of short-term experimental warming were small and suggest a time-lag in the response of understorey species to climate change. Canopy disturbance, for instance due to drought, pests or logging, has a strong and immediate impact and particularly favours generalists in the understorey in structurally complex forests.

引用

页码：219 / 235

页数：17

共 141 条

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