دورية أكاديمية
Canopy composition drives variability in urban growing season length more than the heat island effect.
| العنوان: | Canopy composition drives variability in urban growing season length more than the heat island effect. |
|---|---|
| المؤلفون: | Alonzo M; Department of Environmental Science, American University, Washington, DC 20016, USA. Electronic address: alonzo@american.edu., Baker ME; Department of Geography & Environmental Systems, University of Maryland, Baltimore County, Baltimore, MD 21250, USA., Caplan JS; Department of Architecture and Environmental Design, Temple University, Ambler, PA 19002, USA., Williams A; Department of Environmental Science, American University, Washington, DC 20016, USA., Elmore AJ; Appalachian Laboratory, University of Maryland Center for Environmental Science, Frostburg, MD 21532, USA. |
| المصدر: | The Science of the total environment [Sci Total Environ] 2023 Aug 01; Vol. 884, pp. 163818. Date of Electronic Publication: 2023 Apr 29. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0330500 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1026 (Electronic) Linking ISSN: 00489697 NLM ISO Abbreviation: Sci Total Environ Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Amsterdam, Elsevier. |
| مواضيع طبية MeSH: | Hot Temperature* , Forests*, Humans ; Seasons ; Cities ; Trees ; Plants |
| مستخلص: | The elevated heat of urban areas compared to their surroundings makes humid temperate cities a useful preview of future climate effects on natural forest phenology. The utility of this proxy rests on the expectation that trees in urban areas alter their phenology in response to warmer site conditions in spring and fall. However, it is possible that apparent lengthening of the growing season is instead governed by human-driven tree species selection and plant functional type (PFT; trees, shrubs, turfgrass) heterogeneity typical of managed landscapes. Without the use of highly spatially and temporally resolved remote sensing data, the roles of tree taxonomy and local site characteristics (e.g., impervious cover) in controlling phenology remain confounded. To understand the drivers of earlier start of season (SOS) and later end of season (EOS) among urban trees, we estimated individual tree phenology using >130 high-resolution satellite images per year (2018-2020) for ~10,000 species-labeled trees in Washington, DC. We found that species identity alone accounted for 4× more variability in the timing of SOS and EOS compared with a tree's planting location characteristics. Additionally, the urban mix of PFTs may be more responsible for apparent advances in SOS (by between 1.8 ± 1.3 and 3.5 ± 1.3 days) than heat per se. The results of this study caution against associating longer growing seasons in cities-observed in moderate to coarse resolution remote sensing imagery-to within-species phenological plasticity and demonstrate the power of high-resolution satellite data for tracking tree phenology in biodiverse environments. Competing Interests: Declaration of competing interest Authors declare that they have no competing interests. (Copyright © 2023 Elsevier B.V. All rights reserved.) |
| فهرسة مساهمة: | Keywords: High-resolution remote sensing; Phenology; Urban heat island |
| تواريخ الأحداث: | Date Created: 20230430 Date Completed: 20230626 Latest Revision: 20230626 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1016/j.scitotenv.2023.163818 |
| PMID: | 37121316 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1879-1026 |
|---|---|
| DOI: | 10.1016/j.scitotenv.2023.163818 |