2010 China drought and dust storms the drought, including a three-day tour in mid-March in Yunnan, including Luliang County, which had seen no rainfall since August, to promote water conservation, and another visit in early April 2010 to several Miao and Buyei Autonomous Prefectures in Guizhou, some of the worst-hit places where farming has been made impossible. Most provinces in South China affected by the drought were hit by a series of floods beginning in mid-May that ended most of the drought but also destroyed large areas of farmland. Strong dust storms from the Gobi Desert in Mongolia hit Xinjiang Autonomous Region, Inner Mongolia, Shaanxi, Shanxi,
Gobi Desert as a buffer against further desertification. The Gobi, broadly defined, can be divided into five distinct dry ecoregions, based on variations in climate and topography: The surface is extremely diversified, although there are no great differences in vertical elevation. Between Ulaanbaatar () and the small lake of Iren-dubasu-nor (), the surface is greatly eroded. Broad flat depressions and basins are separated by groups of flat-topped mountains of relatively low elevation ), through which archaic rocks crop out as crags and isolated rugged masses. The floors of the depressions lie mostly between above sea-level. Farther south, between Iren-dutiasu-nor and the Yellow