Study 0111 the benefit value of ecosystem in Hexi corridor region of China

Incorporating the ecological value into socioeconomic accounting system ，the calculation shoWS that the benefit value of ecosystem in Hexi corridor region land of China is 20.79 billion Yuan per year。being 1．11 times of the GDP 0f 18.803 billion Yuan in Hexi corridor region in 1997．among which the total forest ecosystem benefit value accounts for 2.368 billion Yuan per year．being 11.39％ of the total ecosyem benefit and the grassland ecosystem benefit value is the highest，accounting for 79.49％ of the total ecosystem benefit，the benefit value of oasis ecosy~em is quite low，manifest-ing the fragility of oasis ecosystem．