Next Article in Journal
Monitored Indoor Environmental Quality of a Mass Timber Office Building: A Case Study
Next Article in Special Issue
Function-Based and Multi-Scale Approach to Green Roof Guidelines for Urban Sustainability Transitions: The Case of Bogota
Previous Article in Journal
Pushover-Based Seismic Capacity Evaluation of Uto City Hall Damaged by the 2016 Kumamoto Earthquake
Previous Article in Special Issue
Selection of (Green) Roof Systems: A Sustainability-Based Multi-Criteria Analysis
Open AccessArticle

Water Resilience by Centipedegrass Green Roof: A Case Study

School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China
Author to whom correspondence should be addressed.
Buildings 2019, 9(6), 141;
Received: 26 May 2019 / Revised: 6 June 2019 / Accepted: 8 June 2019 / Published: 11 June 2019
Centipedegrass (Eremochloa ophiuroides) is a low-maintenance turfgrass. The first extensive green roof of centipedegrass was established in TongZhou Civil Squares in 2014. However, storm-water-runoff reduction, water-retention capacity, and plant-water requirements by a centipedegrass green roof has not yet been defined. The soil moisture dynamics, rainwater-retention capacity, runoff reduction, and plant evapotranspiration were investigated by simulated centipedegrass green roof plots, which were constructed in the same manner as the green roofs in TongZhou Civil Squares in 2018. The results showed that the centipedegrass green roof retained 705.54 mm of rainwater, which consisted 47.4% of runoff reduction. The saturated soil moisture was 33.4 ± 0.6%; the excess rainfall over the saturated soil moisture resulted in runoff. The capacity of rainwater retention was negatively related to the soil moisture before rain events and was driven by plant evapotranspiration. Drought symptoms only occurred three times over the course of a year when the soil moisture dropped down to 10.97%. Our results indicate that the rainwater retained in the soil almost met the needs of plant consumption; a further increase of rainwater retention capacity might achieve an irrigation-free design in a centipedegrass green roof. View Full-Text
Keywords: green roof; centipedegrass; runoff reduction; evapotranspiration; irrigation-free design green roof; centipedegrass; runoff reduction; evapotranspiration; irrigation-free design
Show Figures

Figure 1

MDPI and ACS Style

Hu, S.; Liu, L.; Cao, J.; Chen, N.; Wang, Z. Water Resilience by Centipedegrass Green Roof: A Case Study. Buildings 2019, 9, 141.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop