By taking the west part of Jilin Province for an example

the coupling coordinate model was employed to analyze coupling interaction between resource-environment and population-economy systems from 1995 to 2004.Analyses indicated that resource-environment system was fluctuated obviously with rainfall and there was a stagnation of resource-environment system owing to the intrinsic frangibility and irrational exploitation.Economy subsystem in West Jilin developed fast in the past 10 years compared with population subsystem.However

economy

with heavy reliance on agriculture

was still lower than other developed regions and human welfare was essentially improved little for undeveloped economy and high human pressure.In general

the coupling coordinate degrees were increased from 1995 to 2004

but most of them belonged to the non-coordinate type or critical non-coordinate type and population-economy lagged behind resource-environment.Resource-environment system may lead to severe restriction to population-economy.