Benefit Evaluation of Snail and Disease Prevention Forests in Hilly Areas

According to the mechanism of forestry schistosomiasis prevention and the characteristics of stand models, the benefit evaluation system was extablished for forest of snail control and disease prevention in hilly areas by the analytic hierarchy process with five target layers, such as anti-snail effect, economic benefit, ecological benefit, landscape effect and forest lifetime. And the evaluation results of comprehensive benefits of 34 pure forest models showed that the highest was economic type, followed by dual-use type, and the lowest was timber type.