| RRC ID |
89512
|
| Author |
Jie Xu, Minxin Gou, Haiyang Wang, Qiongshuang Guo, Bin Liu, Jianhua Zhou, Xinping Chen
|
| Title |
Integrating climate-niche safety margins and physiological responses to extreme heat in subtropical urban forests
|
| Journal |
Landscape and Urban Planning
|
| Abstract |
Climate change poses significant challenges to urban trees, which exhibit unique physiological responses to urban environments and are often transplanted outside their native ranges. These factors make it essential to refine methods for understanding how urban tree population structure and functioning may shift under future climate conditions. This study presents an integrated framework combining field surveys, climate-niche safety margins, and physiological trait assessments to evaluate the climate resilience of urban woody plants in subtropical regions. Focusing on Chongqing, China, we compiled a comprehensive inventory of 333 urban woody species based on field data and existing records. Analysis of climate-niche safety margins revealed distinct vulnerability patterns across life forms, with all 293 analyzed species projected to exceed their maximum temperature tolerance thresholds under the Shared Socioeconomic Pathway 3–7.0 scenario by 2050. Trees consistently exhibited greater projected temperature sensitivity compared to shrubs, with deciduous trees being the most vulnerable—55 % of species exceeded their mean annual temperature safety margins. Physiological heat tolerance was assessed for 21 woody plant species during a 13-day extreme heat event, revealing substantial interspecific variation. Generalized additive models demonstrated that the 95th percentile of maximum temperature of the warmest month and the 5th percentile of annual precipitation collectively explained 70.96 % of the observed variation in heat tolerance through non-linear relationships. Cross-validation (mean R2 = 0.347) indicated moderate predictive accuracy, while underscoring the limitations of inferring physiological mechanisms solely from climatic correlations. These findings validate the relevance of climate realized niches in predicting heat tolerance and highlight the complexity of species–climate interactions. The proposed framework offers a systematic approach to climate-resilient urban forest management, providing practical guidelines for species selection and risk assessment in subtropical urban environments.
|
| Volume |
268
|
| Pages |
105565
|
| Published |
2025-12-22
|
| DOI |
10.1016/j.landurbplan.2025.105565
|
| Description |
J-OBIS data were referenced. NIES data were referenced.
|
| Resource |
| GBIF |
Gunma Museum of Natural History, Mammal Specimen
Insect specimens of Hokkaido University
Hymenoptera collection of National Museum of Nature and Science
Microbial Culture Collection, National Institute for Environmental Studies
A crowdsourcing approach to collecting photo-based insect and plant observation records
Vascular plant specimens of Nagano Environmental Conservation Research Institute, Nagano Prefecture
Microfossil collection of National Museum of Nature and Science
JODC Dataset
Mollusca collection of National Museum of Nature and Science
Insect specimens of Himeji City Science Museum
Asia-Pacific Dataset
Vascular plant specimens of the herbarium of the Tohoku University (TUS)
Crustacean collection of the National Museum of Nature and Science
Annelida collection of National Museum of Nature and Science
Entomological Specimens of Museum of Nature and Human Activities, Hyogo Pref., Japan
Platyhelminth collection of National Museum of Nature and Science
Marine Invertebrata specimen database of Osaka Museum of Natutal History
Crustacea Collection of Natural History Museum and Institute, Chiba
Insect Collection of Yokosuka City Museum
Plankton&BenthosResearch
Birds Specimens of Akita Prefectural Museum
Ibaraki Nature Museum, Vascular Plants collection
Insect specimens of Kashihara City Museum of Insect
Fish collection of National Museum of Nature and Science
Fish Collection of Natural History Museum and Institute, Chiba
Rust fungus specimen of Research Group of Plant Parasitic Mycology, Faculty of Life and Environmental Sciences, University of Tsukuba
Plant specimens in the Museum of Nature and Human Activities, Hyogo
Gunma Museum of Natural History, Molluscan Specimen |
