A Study of Rational Design of Plant Evapotranspiration for Roof Gardens Irrigation

• Main Authors: HUANG,MEI-NING, 黃美寧
• Other Authors: LEE,CHON-LIN
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/81361570933966618843

碩士 === 中華科技大學 === 建築工程與環境設計研究所在職專班 === 105 === Due to the development of urbanization and the excessive concentration of population, the urban density is excessive with the ever-increasing buildings and artificial domains. Consequently, most of lands are covered by artificial domains and the natural or permeable areas disappear. All these result in the reduced area of afforested and green regions year by year. The urban heat island effect consequently leads to environmental problems including the increasing energy consumption, the incremental surficial rainfall runoff and others. Generally, the solution is to add the urban green coverage ratio to relieve the urban environmental pressures. However, on account of expensive price of land in cities, it is not easy to extensively facilitate the construction of green land. Therefore, many scholars advocate to adding the green coverage ratio by the straticulate roof greening to consequently achieve effects such as reducing surficial runoff, deferring urban floods, alleviating urban heat island effect and others. Nonetheless, being located in the subtropical zone, Taiwan’s climatic conditions are widely different from that of the temperate zone. As a consequence, it is necessary to discuss appropriate plants for local straticulate roof greening on the basis of Taiwanese climatic conditions. After joining WTO, the agricultural land is changed for the development leisure agriculture and the automatic system of spray irrigation will be the market trend. The study aimed at discussing appropriate vegetation and optimal irrigation designs for different straticulate roof greening in Northern Taiwan. The paper took the vegetation and irrigation designs of ten cases to analyze influences from sunshine conditions, soil conditions, wind conditions and others and further assess the waterpower required for maintaining the long-acting irrigation of building greening. According to research results, the vegetation and irrigation designs of ten cases have over total water supply. We need to re-design for the systematic design of automatic irrigation in order to achieve the goal of water-saving benefits.