Upper Reach of Minjiang River，located in the western plateau of Sichuan province,China，was selected for study. This paper introduced the concept of heterogeneity，which is used in the field of ecology，adopting Theil index decomposition，variable coefficient and ESDA methods，the heterogeneity and its spatial distribution of rural household per capita annual income was analyzed.The results demonstrated that:(1)the per capita annual income of rural household heterogeneityshown converged trend in the study areafrom 2005 to 2010，and the withincounty disparities is the significant component of the overall regional inequalities；(2)high income area concentrated mainly in the north and south of upper reach of Minjiang River，while the low concentrated in the central. Significant positive correlation and agglomeration trend are shown in per capita annual income though Moran's and local Moran’sⅠindex analysis；(3)it is shown that geographical location and altitude，natural tourism resources，accessibility of traffic condition and Wenchuan earthquake in 2008 et al，are significant factors influencing per capita annual income in the upper Minjiang River；(4)those townships which covered by National park and World nature Heritage site was classify developmentprohibited zonesaccording to the plan of National Major Function Zoning，are located in high income area. It is shown that there are noirreconcilable contradictions between economic development and ecological environment protection in developmentprohibited zones，where improved income level of rural household per capita by developing environmental industry and national fiscal transfer payment are available.
; 徐云
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