Climate is more important than green roof design for rainfall retention and plant drought stress in temperate and semi-arid climates

被引：0

作者：

Soni, Lubaina ^{[1
]}

Farrell, Claire ^{[1
]}

Fletcher, Tim D. ^{[1
]}

Szota, Christopher ^{[1
]}

机构：

[1] Univ Melbourne, Fac Sci, Sch Agr Food & Ecosyst Sci, Richmond, Vic, Australia

来源：

URBAN WATER JOURNAL | 2025年

关键词：

Water balance model; green roof configuration; evapotranspiration; rainfall retention; plant drought stress; climate; WATER-USE; STORMWATER RETENTION; HYDROLOGICAL PERFORMANCE; SUBSTRATE; RUNOFF; MODEL; EVAPOTRANSPIRATION; VEGETATION; SURVIVAL; SUCCULENCE;

D O I：

10.1080/1573062X.2025.2509071

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

Green roofs are increasingly used for stormwater management. Rainfall retention is influenced by climate and green roof design. Deeper substrates and greater plant density increases water storage capacity on green roofs, in hot/dry climates. Higher plant density and evapotranspiration leads to greater drought stress. Designing green roofs with runoff zones (directing water towards plants) potentially reduce drought stress. An existing water balance model was modified to simulate rainfall retention and plant drought stress for 30-year period for different green roof designs; density (unplanted, half-planted and fully-planted), depth (150mm and 300mm) and presence/absence of runoff zones in temperate and semi-arid climates. All designs achieved high retention in temperate (>87%) and semi-arid (100%) climates. Plants in semi-arid climate experienced drought stress for 70-120 days annually. Greater density and presence of runoff zones increased drought stress in semi-arid climate. In all green roof designs, rainfall retention was mostly driven by evaporative demand.

引用

页数：16

共 85 条

[1] The effect of green roof configurations including trees in a subtropical climate: A co-simulation parametric study [J].

Abuseif, Majed ;

Dupre, Karine ;

Michael, Ruby N. .

JOURNAL OF CLEANER PRODUCTION, 2021, 317

[2]

Allen R. G., 1998, FAO Irrigation and Drainage Paper

[3] Estimating Evapotranspiration from Commonly Occurring Urban Plant Species Using Porometry and Canopy Stomatal Conductance [J].

Askari, Syed Hamza ;

De-Ville, Simon ;

Hathway, Elizabeth Abigail ;

Stovin, Virginia .

WATER, 2021, 13 (16)

[4]

Beecham S, 2019, APPROACHES TO WATER SENSITIVE URBAN DESIGN: POTENTIAL, DESIGN, ECOLOGICAL HEALTH, URBAN GREENING, ECONOMICS, POLICIES, AND COMMUNITY PERCEPTIONS, P409, DOI 10.1016/B978-0-12-812843-5.00020-4

[5] Moisture content behaviour in extensive green roofs during dry periods: The influence of vegetation and substrate characteristics [J].