Crop straws are important biologic resource in agricultural production system.Because of the low degradability and limit of related technology, overmuch straws could not be resonblely utilized.

• 摘要秸秆是农业生产系统中一项重要的生物资源，由于秸秆本身的难降解性和当前处理秸秆的技术水平还有限，目前存在秸秆过剩问题。