英语与精读_土地沙漠化问题.ppt

land desertification ;The size of desert is increasing continuously. On contrast, the forests and arable land keep decreasing. ; Therefore, we have to change our environment condition and protect it. ;Causes: ; five main reasons on people’s actions ; some reasons on climate: ;Around the world, every year 6,000,000 hectares of land desertification happen. According to the China State Forestry Administration’s announcement in June 17, 2006, China desertification land reached 1,739,700 square kilometers, accounting for more than 18% of land area. It is obvious that the situation of desertification is grim. ;Solution: ;some solutions for reducing the desertification ;THANKS