Remarkable benefits of ecology

economy have been achieved through the effect of long-term comprehensive con-trol of water and soil erosion in wupohe valley

The amount of conveyance of suspended sediment of the river was de-creased by 45 775. 79t or 77. 3%from 1985 to 1990

The river bed was cut down by 1. 25 meter

The degree of vegeta-tion cover had been incteased from 15% in 1952 to 80% in 1990. Thus soil fertility and crop yield have been raised

The total grain yield rose by 5. 4 % from 1981 to 1990

The per capita income of people rose by 92. 8%. As a result

the living standards of the people improved apparently.