| RRC ID |
68758
|
| 著者 |
Lloret F, Jaime LA, Margalef-Marrase J, Pérez-Navarro MA, Batllori E.
|
| タイトル |
Short-term forest resilience after drought-induced die-off in Southwestern European forests.
|
| ジャーナル |
Sci Total Environ
|
| Abstract |
Drought-induced die-off in forests is becoming a widespread phenomenon across biomes, but the factors determining potential shifts in taxonomic and structural characteristics following mortality are largely unknown. We report on short-term patterns of resilience after drought-induced episodes of tree mortality across 48 monospecific forests from Morocco to Slovenia. Field surveys recorded plants growing beneath a canopy of dead, defoliated and healthy trees. Site-level structural characteristics and management legacy were also recorded. Resilience was assessed with reference to forest composition (self-replacement), structure, and changes in the climatic suitability of the replacing community relative to the climatic suitability of the dominant pre-drought species. Species climatic suitability was estimated from species distribution models calculated for the baseline 1970-2000 period. Short-term resilience decreased under higher levels of drought-induced damage to the dominant species and with evidences of management legacy. Greater resilience of structural features (fewer gaps, greater canopy height) was observed overall in forests with a larger basal area. Less gaps were also associated with greater woody species richness after drought. Overall, Fagaceae-dominated forests exhibited greater structural resilience than conifer-dominated ones. On those sites that were more climatically suited to the dominant pre-drought species, replacing communities tended to exhibit lower climatic suitability than pre-drought dominant species. There was a greater loss of climatic suitability under a legacy of management and drought intensity, but less so in the replacing communities with higher woody species richness. Our study reveals that short-term forest resilience is determined by pre-drought stand characteristics, often reflecting previous management legacies, and by the impact of drought on both the dominant pre-drought species and post-drought replacing species in terms of their climatic suitability.
|
| 巻・号 |
806(Pt 4)
|
| ページ |
150940
|
| 公開日 |
2022-2-1
|
| DOI |
10.1016/j.scitotenv.2021.150940
|
| PII |
S0048-9697(21)06018-6
|
| PMID |
34699836
|
| MeSH |
Droughts*
Ecosystem
Forests*
Slovenia
Trees
|
| IF |
6.551
|
| リソース情報 |
| GBIF |
Plant specimens of Toyota City Nature Sanctuary (from non-museum circle)
Ibaraki Nature Museum, Vascular Plants collection
Herbarium Specimens of Tokushima Prefectural Museum, Japan
Plant Specimen Database of Tama Forest Science Garden, Forestry and Forest Products Research Institute, Japan |
