Based on survey data of TSDA(Third Survey & Design Institute of Railway),this paper analyzed the water quality of shallow groundwater in downtown of Tianjin,the causes of groundwater formation,water quality testing data and the corrosion of the groundwater finally,put forward the corresponding anti-corrosion measures.

Quality evaluation and optimizing countermeasures on tourism environment of historical and cultural cities ——A case study of Tianshui City in Gansu Province;

Evaluation on Urban Environment Engineering Geology by Fuzzy Logic Based on GIS——Taking Tianshui City of Gansu Province for Example;

Discussion of existing condition and sustainable utilization of water resources in Tianshui City;