Abstract:

Manual positive intervention is the important means of maintenance dynamical equilibrium between grassland ecosystem structure and function.In order to discuss the effect of grassland ecosystem manual intervention on the regional economical welfare,and to release the linkage between grassland ecosystem manual intervention and economical welfare,pasture fence,livestock shed,pasture deratization,and artificial pasture construction were selected as the intervention indicators of grassland ecosystem,and GDP per capita,herdsman income of per capita,the output of meat per capita as the indicators of economic welfare.Authors analyzed the relationship between intervention indicators of grassland ecosystem and indicators of economic welfare based on regression and SPSS software in the source region of the Yellow River.The results show that there are close relationship between selected intervention indicators and economic welfare indicators.It means that these indicators of pasture fence,livestock shed,pasture,and artificial pasture area are of significant influence to GDP per capita,herdsman income per capita,output of meat per capita.And the sensitivity of economic welfare to the per unit area change of artificial pasture,livestock shed,and pasture fence ranks from high to low respectively.Except the indicator of pasture deratization has low relevance with output of meat per capita,the area of pasture deratization also has the high relevance with GDP per capita,herdsman income per capita.〖