Climate and Environment Effect and Tectonic Erosion of Loess Plateau in Qinghai-Xizang Plateau Uplift

Great change of Asian and global climate is the result of Qinghai-Xizang plateau uplift.And Planetary wind system was changed and monsoon effect appeared around 22 MaB.P.in East Asia;the monsoon effect of East Asia became stronger,aridity and desertification was intensified,widely spreading aeolian succession began in the Chinese Loess Plateau;the global climate change was droved and intensified the climate fluctuating by the Plateau uplift since 3.6 Ma B P;the monsoon effect of Asian present-day climate was increasingly intensified since 1.2 Ma B P.Since Quanternary,the uplift and structure deformation taken place in the Chinese Loess Plateau and arose geological hazard and soil erosion,owing to the Qinghai-Xizang Plateau uplift.And the uplift of Loess Plateau induced gravity,trace to the source and water-flow erosion;the structure deformation resulted in loess collapse and landslide;the soil erosion is the most intense in great tectonic deformation zones,active fault zones,seismic zones.