The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With 8,472 square miles (21,940 km2) and a population of more than 2.2 million people, it is the second-largest metropolitan area centered in Missouri (after Greater St. Louis) and is the largest metropolitan area in Kansas, though Wichita is the largest metropolitan area centered in Kansas. Alongside Kansas City, Missouri, these are the suburbs with populations above 100,000: Overland Park, Kansas; Kansas City, Kansas; Olathe, Kansas; Independence, Missouri; and Lee's Summit, Missouri.
Lixian belongs to Baoding City, Hebei Province, the hinterland of Beijing, Tianjin and Stone Triangle, and the junction of Baoding, Cangzhou and Hengshui. Lixian has a total area of 650 square kilometers. In 2013, Lixian has a total population of 510000, including an agricultural population of 400000. Lixian has 13 townships (8 towns and 5 townships) and 232 administrative villages. Lixian County is located in the middle of the plain of the western structural belt of Jizhong Depression, Bohai Bay Basin. The topography and geomorphology are all plain formed by Quaternary alluvial and alluvial deposits. The general topography is high in the southwest and low in the northeast, with an average altitude of 15.6 meters. There is no obvious fluctuation. Lixian is a warm temperate semi-arid region in the eastern monsoon region, with significant continental monsoon climate, windy and dry spring, rainy and hot summer, crisp autumn, dry and cold winter, four distinct seasons, light and heat, and rich water resources. two