定西地区农业系统协调度测评

在参考现阶段国内外众多农业相关评价指标体系的基础上,针对定西市的自然和经济状况,建立了该区域农业系统协调度评价指标体系。构建了农业系统协调度模型,包括功效函数、协调函数,计算得出定西市农业系统以及子系统的协调度,并确定各系统在不同年份的协调等级。定西市农业系统协调度主要是受人口系统、经济系统、社会系统和环境系统协调度变化的影响。系统内部要素协调度低,严重影响农业系统的整体协调性,在农业发展过程中,应实施有效协调控制,实现良性与稳定发展。

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.