Abstract:Remote sensing technology is an important means to monitor the dynamic changes of the ecological environment and evaluate the quality of the ecological environment.Based on the moderate resolution imaging spectrometer(MODIS)dataset and cloud computing technology,the paper used the optimized and improved remote sensing ecological index(RSEI)to evaluate the ecological quality of Gansu Province from 2005 to 2022 in a long series,and obtained the provincial normalized RSEI in 2005,2010,2015,2020,and 2022,and carried out qualitative analysis.The results showed that the ecological quality of Gansu Province showed an overall upward trend,and the ecological quality of the southeastern and southwestern mountainous areas was significantly higher than that of other regions.

Abstract:Taking the TOD project of Chongqing Rail Transit Sigongli Depot as an example,the paper has conducted an in-depth investigation into the traffic organization of property development above the depot of urban rail transit.Starting from the perspectives of regional and internal traffic,the study has systematically summarized and analyzed existing theories and practices,and has proposed a scientific and rational traffic organization plan.The results show that through reasonable traffic organization,the interference of rail transit superstructure property development to the surrounding traffic can be effectively reduced,the traffic efficiency can be improved,and an integrated layered three-dimensional transportation system can be created to promote the coordinated development of urban rail transit and property development,and promote the sustainable development of the city.