Wang Run

Preliminary study on flash floods in Tarim River basin

Flash floods are the important events of the hydrological regime of rivers in arid areas. In the Tarim River, northwestern China, flash floods are being monitored. The observed data and investigation demonstrate the difference in time, place, frequency and intensity of their occurrences. In this paper two main flash floods are put forward, they are rainstorm flash flood (RFF) and glacier lake outburst flood (GLOF). Two cases of flash flood in the two tributaries of the Tarim River presented in this paper. It analyses and compares the causes and the development of the two kinds of flash floods. Through further discussion about influence of flash floods on the main channel of the Tarim River, conclusion can be drawn that the greatest flood in record of the main channel come from the GLOF of the upper reaches of the Kunmalik River, especially augmented by great ablation flood. Finally the advantages and disadvantages from flash floods to the environment of the catchment are demonstrated in the paper.

Research on Urban Tourism Image Positioning： A Case Study of Dengfeng in Henan Province

Abstract Aiming at facilitating the research of urban tourism image positioning, this paper summarizes the domestic and abroad theories on urban tourism image and analyzes its significance for cities. With Dengfeng as an example, its goal is to boost development of Dengfeng tourism, which is an excellent tourism city in China. This paper presents its current urban tourism developing situation, positions its tourism image, concludes the plan of image brand and proposes promotional slogans based on the analysis of Dengfeng tourism local features, its core elements and perceptions of visitors.