The Pearl River Delta region includes nine cities in Guangzhou, Foshan, Zhaoqing, Shenzhen, Dongguan, Huizhou, Zhuhai, Zhongshan and Jiangmen in Guangdong Province, with a total area of 56,000 square kilometers. It is one of the three largest urban agglomerations in China with the most developed industry and the densest population. Among them, Guangzhou is a representative city. In this project, Guangzhou, one of the most representative cities in the Pearl River Delta region, is selectedas the research area. The main goal is to solve the problem of waterlogging. After conducting literature research, site visit, and case study, this project will focus on solving the problem of waterlogging by constructing green-blue structures. At the same time, in the design project, the multi-scale design is carried out, from the Guangzhou scale, Panyu district scale, neighborhood scale to chosen site scale, more detailed planning and design are carried out step by step. Some industrial transformation sites are selected to expand the new green-blue structure. Because the entire Pearl River Delta region has things in common in the terrain and development model, this method can be used as a reference for solving similar problems in other cities.

Copper-oxo clusters exchanged in zeolite mordenite are active in the stoichiometric conversion of methane to methanol at low temperatures. Here, we show an unprecedented methanol yield per Cu of 0.6, with a 90–95 % selectivity, on a MOR solely containing [Cu3(μ-O)3]2+ active sites. DFT calculations, spectroscopic characterization and kinetic analysis show that increasing the chemical potential of methane enables the utilization of two μ-oxo bridge oxygen out of the three available in the tricopper-oxo cluster structure. Methanol and methoxy groups are stabilized in parallel, leading to methanol desorption in the presence of water.@en