Watering Type and Water Consuming Assessment of the Green Construction Fence in Taichung City, Taiwan
The green construction fence,green wall,can reduce the impact to the urban landscape cause by the construction site.However,keeping the plants survive usually consumes lots of water.This study had surveyed 35 green walls in Taichung city,Taiwan.The result indicates that the two most used watering types are “delaminate watering by gravity with drilled PVC pipe,62.8%,and “delaminate watering by drip irrigation system,22.9%.And the plants were watered for 33.2 minutes,two times a day on average.Base on the interview and field investigation,the average yield of water was 29.6 L/m2-a day,which is 2.96 times to the references,thus the green wall was regarded as a hyper-water consuming structure.Therefore,this study aimed to assess which watering type is better and its actual water consumption by doing an onsite experiment with an 1:1 scale green wall.The watering type includes two parts: the watering system and the watering frequency.This study evaluated the appropriate watering frequency and water yield of two watering systems by measuring the soil humidity and observing how the plants grow or even died.In conclusion,to keep the plant survive,the drip irrigation system is the better watering system for the green wall.The best watering frequency and the limit yield of water for each plant for the green wall in Taichung city is:(1)Shrub: 11.73 L/m2,each 2 days;(2)Herbaceous plants: 8.93 L/m2,each 2 days;(3)Succulent plants: 9.73 L/m2,once a week;(4)Fern plants: 5.31 L/m2,each 2 days.When building a green construction fence,the drip irrigation system would be the better choice.And using appropriate watering frequency for different plants is also suggested.The green construction fence will have better benefit if built with water retention materials and water recycle system.
green construction technology watering type water consuming
CHEN Chen-chun CHAO Yu-chan LAI Wan-ting
Feng Chia University,Taiwan
国际会议
2017世界可持续建筑环境大会(the World Sustainable Built Environment Conference)
香港
英文
2752-2757
2017-06-05（万方平台首次上网日期，不代表论文的发表时间）