As a good indicator of Holocene climate, the fluctuation of alpine timberline is a synthetical result of impacts of many environmental factors dur-ing geologica
1. INTRODUCTIONTheHuaiheriverislocatedintheEastofChina.TheareaoftheHuaiheriveris27×104km2,andthepopulationinthisregionis1.5×108.Inthe?..
1. INTRODUCTION The Huai has been established in the East of China. The Hospital of Huai heriveris27 × 104 km2, and t