| 摘要: |
| [目的]研究区域农业系统在不同尺度下的协调度变化情况,探索区域农业系统协调度评价理论.[方法]构建了区域农业系统协调理论,包括协调度概念、功效函数、功效系数、协调函数、协调度、协调度变化区间和协调等级等;采用改进专家调查法构建评价指标体系,从生态、经济和社会子系统中共筛选出24个评价指标;采用自尺度、省域尺度和国家尺度对广东省新兴县区域农业系统进行协调度实证分析.[结果]不同尺度下,广东省新兴县区域农业系统协调由高到低的排序是自尺度、国家尺度和省域尺度;生态子系统的排序是自尺度、省域尺度和国家尺度;经济子系统的排序是国家尺度、自尺度和省域尺度;社会子系统的排序是自尺度、国家尺度和省域尺度.区域农业系统、生态与社会子系统在自尺度下的协调度高于国家尺度和省域尺度.[结论]广东省新兴县区域农业系统的协调水平、农业生态环境和社会发展状况,与广东省和全国相比还有一定差距;经济子系统协调度高于全国而低于广东省.自尺度适用于系统协调发展趋势评价,省域尺度与国家尺度适于系统之间的协调差距评价. |
| 关键词: 区域农业系统 自尺度 省域尺度 国家尺度 协调度 协调等级 改进专家调查法 |
| DOI： |
| 分类号: |
| 基金项目:国家科技支撑计划项目(2006BAD09B04)；国家科技重点资助项目（1251610721336） |
|
| Appraising on harmony coefficient of regional agricultural system at different scales |
|
|
| Abstract: |
| 【Objective】 The change of harmony coefficient(HC) of regional agricultural system (RAS) was studied at different scales,and the theory system of harmony coefficient of regional agricultural system was explored.【Method】 The theory of harmony coefficient of RAS was conceived,which consisted of harmony conception,efficacy function,efficacy coefficient,function of harmony coefficient,harmony coefficient (HC),range of harmony coefficient,rank of harmony coefficient (RHC),and the core of harmony theory was HC and RHC.The appraising index system of RAS was established by improving expert inquiry method,which included 23 indexes and was filtrated from ecological subsystem,economic subsystem and social subsystem.HC of RAS of Xinxing County,Guangdong Province (XCGP) was taken as a case study and appraised at self scale,provincial scale and national scale.【Result】 The results were:at the different scales,the sort ascending HC of RAS was self scale,national scale and provincial scale,and the sort ascending of ecological subsystem was self scale,provincial scale and national scale,and the sort ascending of economic subsystem was national scale,self scale,and provincial scale,and the sort ascending of social subsystem was self scale,national scale and provincial scale.【Conclusion】 HC of RAS,ecological subsystem and social subsystem were higher in self scale than in national scale and provincial scale,showing definite difference between RAS of XCGP and Guangdong Province and nation in system harmony level,agriculture ecological environment and social development level.HC of economic subsystem in self was less than in national scale,and more than in provincial scale,showing the economic statue of XCGP was better than nation,and worse than Guangdong province.Self scale was fitting in appraising the trend of HC development of RAS,and provincial scale and national scale was fit for appraising difference of HC of RAS. |
| Key words: regional agriculture system (RAS) self scale provincial scale national scale harmony coefficient (HC) rank of harmony coefficient (RHC) improving expert inquiry method |
