中国西部地区包括陕西、甘肃、青海、宁夏、新疆、四川、重庆、云南、贵州、西藏 10个省市自治区以及内蒙古西部地区 ,占全国陆地国土总面积 5 6 8%、人口总数的 2 3% ,这里作为长江黄河的发源地 ,曾经有过丝绸之路 ,开元盛世等辉煌时期 ;然而近一千多年由于人类的过度垦植与 The western regions of China include Shaanxi, Gansu, Qinghai, Ningxia, Xinjiang, Sichuan, Chongqing, Yunnan, Guizhou and Tibet, 10 provinces and autonomous regions as well as western Inner Mongolia, accounting for 56.8% of the total terrestrial land area and 23% of the total population , Here as the birthplace of the Yellow River in the Yangtze River, there have been the Silk Road, Kaiyuan prosperity and other magnificent times; but nearly a thousand years due to human over-cultivation and