کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5114976 1484591 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimizing the spatial arrangement of trees in residential neighborhoods for better cooling effects: Integrating modeling with in-situ measurements
ترجمه فارسی عنوان
بهینه سازی آرایش فضایی درختان در محله های مسکونی برای اثرات بهتر خنک سازی: مدل سازی یکپارچه سازی با اندازه گیری های داخلی
کلمات کلیدی
فضای سبز شهری، پیکربندی فضایی، جزیره گرمایی شهری، تابش خورشیدی، منطقه ساختمان بلند، مدل سازی عددی،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
چکیده انگلیسی


- The cooling effects of trees with different spatial arrangement was investigated at neighborhood scale.
- Numerical modeling and in situ measurements were used to conduct this study.
- Trees were arranged according to solar energy potential intensity on land surfaces in three vegetation arrangement scenarios.
- Different spatial arrangements of trees had differentiated effects of cooling air temperature.
- Different spatial arrangements of trees led to significantly different effects of sensible heat reduction.

Trees have long been recognized as effective for mitigating urban heat islands by reducing air temperature through evapotranspiration and intercepting shortwave radiation that heat up land surfaces. Many studies have shown that both the composition and configuration of vegetation can contribute to heat reduction at the city scale. Fewer studies, however, have focused on cooling mechanisms at the neighborhood scale. Here, we integrate modeling with in situ measurements to investigate how different spatial arrangements of trees in residential neighborhoods affect their cooling effects. We conducted the research in a residential neighborhood with high-rise apartment buildings in Beijing. We tested four scenarios with different spatial arrangements of trees, and quantified their effects on cooling. We used the high spatial and temporal resolution microclimate model ENVI-met and validated the model with in situ measurements. We found: (1) Different spatial arrangements had differentiated effects on intercepting shortwave radiation, which led to variations in air temperature. For example, new trees that were completely exposed to solar radiation had stronger cooling effects (air temperature was 0.22 °C lower) than new trees that were located in the shadow of surrounding buildings. (2) Different spatial arrangements led to obviously different effects of sensible heat reduction, with a maximum difference of 14.84 × 108 J/ha. Our results underscore the importance of the spatial arrangement of trees on cooling in residential neighborhoods. These results have important implications in urban planning and design at the neighborhood scale.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Landscape and Urban Planning - Volume 167, November 2017, Pages 463-472
نویسندگان
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