Multi-function Hall of Faculty Culture Activity Center on Weijin Road Campus witnessed the 81th Youth Scholar Academic Salon recently. Zhang He, the associate professor from the School of Architecture, delivered a seminar on the spatial distribution of sea-filling based on hydraulic test models.
Prof. Zhang introduced the development of coastal zones in the 21th Century. “China has been experiencing rapid coastal reclamation over the past ten years, providing land and space for urban development,” he stated, “yet, the lack of effective scale control standards has brought negative impacts on ecological environment.
After the introduction of his research background, it came to the theory part of the seminar - using the System Dynamics Method, he established a systematic model for evaluating the land reclamation scale. First of all, he took the two major systems including reclamation demands and reclamation supply into account, then set up sub-systems under these two systems. Secondly, according to the qualitative causality, he set up 63 different variables, including 8 state variables, 8 rate variables, 28 auxiliary variables, and 19 constant variables. Thirdly, he constructed 44 quantitative equations using the variables mentioned above. Finally, through a simulation of the land reclamation process in Tianjin Binhai New Area using historical datum over the past few years, he obtained the critical variables of the systematic model and established an evaluation model for land reclamation scale. Then he set up different development scenarios for Tianjin, and through simulation, he came up with the control ranges of four critical variables, including GDP comprehensive growth rate, population comprehensive growth rate, disaster-prevention input growth rate, and marine environment protection input growth rate.
At the end of the seminar, when asked about the significance of his research results, Prof. Song explained: “This Tianjin-based research provides guidelines for other land reclamation projects on the land reclamation scale evaluation.”
By: Zhang He
Editor: Qin Mian
