Study on the Improvement of Ecological Environment in the Space of Shanghai Primary and Secondary Schools by Rain Gardens

Abstract

Low Impact Development (LID) is a technology of rainstorm management and water pollution treatment developed in the late 1990s. As one of the LID measures, rain gardens can alleviate the urban rainstorm in Shanghai. Aiming at the low rate of environment utilization in the spaces of Shanghai primary and secondary schools, this paper proposes to collect the rainwater runoff from buildings and roads in the form of rain garden. We try to use artistic design techniques, and establish the campus environment with the value of rain and flood management, sustainability and biodiversity. The study results show that the sample rain garden covers an area of 310m2 with a water storage depth of 30mm, and has recorded 6 short-term heavy rainfalls and 1 overflow in 1 year. The biodiversity has increased by 70%.