Study on Compensation Standard and Period of Conversing Farmland to Forest in the perspective of incomplete property rights

[Result] The observation group has complete abortion rate markedly more than control one,the abortion time and treatment time of lochia after abortion are obviously shorter than that of control one.

Based on the analysis of the typical four-step commutation,the concept of narrow pulse was introduced to explain the incomplete commutation during the process of commutation,the hazard of which was also demonstrated.