Evaluation of Agricultural System Harmony Coefficient on Dingxi Area
On the basis of some relative agricultural appraised index,the agricultural system harmony coefficient was established according to the natural and economic condition of Dingxi area.Harmony coefficient(HC) model was constructed which was consists of efficacy function,harmony coefficient function,the harmony coefficient of Dingxi agricultural system as well as subsystem was calculated to identify the range of harmony coefficient of each system in different years.HC of agricultural system mainly affected by the change of harmony coefficient of population system,economic system,social system and environmental system.HC of internal factors in agricultural system of Dingxi area was low,it was seriously affected the overall harmony of agricultural system.As a result,effective coordination and control should be implemented in the process to achieve healthy and stable development.