Soil and water loss in the Lancang River-Mekong River watershed (in Yunnan section, China) and its control measures

摘要

According to a lot of hydrological and environmental monitoring data, the condition of soil and water loss in the Lancang River-Mekong River watershed (in Yunnan section, China) is described. The occurrence and development of soil and water loss is analyzed. The conclusion is that: (1 ) generally, the situation of soil and water loss in the Lanncang River-Mekong River watershed (in Yunnan section, China) is light, however, soil and water loss in me regions is serious, especially in the middle reach area of the river; (2) soil and water loss in the Lancang River--Mekong River (in Yunnan section, China) watershed presents developing tendency and it is mainly caused by human beings. In accordance with these results, the control measures for soil and water loss are discussed.