The ecosystem service values of a farmland ecosystem with straw recycling

Based on experiment and value conversion methods, the ecosystem service values of straw and Agarics Bosporus waste recycling in a rice-wheat rotation farmland ecosystem was discussed in this paper. The total ecosystem service values of the recycling treatments were both higher than that of conventional cropping, especially the value of fungus waste recycling significantly increased by 46.33%. The ecosystem service values of crop production and atmospheric regulation between conventional cropping and fungus waste recycling had no significant difference. The ecosystem service value of environmental purification under fungus waste recycling was twice of the straw directly recycling; conventional cropping was the lowest. Compared to conventional cropping, the values for maintaining soil fertility under straw directly recycling and fungus waste recycling increased by 22.30% and 37.16%, respectively. It is worth mentioning that, the values for greenhouse gas emissions from the fungus waste recycling, which compared to conventional cropping and straw directly recycling, were decreased by 25.46% and 32.48%, respectively. Furthermor, the ecosystem service value of N03"-N and NH4+-N leaching under fungus waste recycling were 21.71% and 31.41% lower than that of conventional cropping and straw directly recycling, respectively. Therefore fungus waste recycling treatment had the highest benefit.