The Change of Grassland Ecological Environment in Inner Mongolia and their Dynamics Response to Climate Change

There is a transition from grassy marshland grassland and typical grassland to deserted grassland and desert because of the difference of climate.And this change is from east to west in Inner Mongolia.The climate warming postponed frostless period,decreased snow,hailstone,thunderstorm,gale and day count of dust storm,increased rainfall.But it wasn't change humidity that determined the distribution of grassland genre nearly.A few years recently,grassland degeneration and deserted going with grassland assart and the instance of vegetation destroyed.High and continuum temperature accelerated the process of grassland degeneration,and in some degree changed its trend and pattern from 1999 to 2001.