陕西省生态经济系统的能值分析

Emergy analysis on eco-economic systems of Shaanxi Province

运用能值理论分析了陕西省域生态经济系统的主要能值指标,探讨资源的输入、产出、消耗所带来的环境压力与可持续发展的关系,结果表明:2006年陕西省生态经济系统的人均能值和能值使用强度较低,系统资源的开发利用不充分,可更新资源在系统发展中的贡献不足,实际人口超出人口承载量2倍,经济发展主要依托省内资源,以传统粗放型增长模式为主,且出口严重不足,货币和物质流动的速度不高,总体属经济欠发达的省份。

On the basis of emergy analysis,main emergy indices were calculated and analyzed,the relationshipsbetween the environmental stresses caused by resources＇input,output and consumption and the sustainable devel-opment in the eco-economic system of Shaanxi province in 2006 were investigated.The results showed that the emergy per capita（EPP） and the emergy per area（EPA） were rather low,and resources of the eco-economic system were inadequate in Shaanxi Province.The contribution of renewable resources was insufficiency for the eco-economic system development.The actual population of Shaanxi Province was exceed 2 times of Population Supporting Capacity.The economic development relied on resources from Shaanxi Province.Economic growth patterns were traditional and extensive,export amount was shortage,and material flow and currency were low.Overall,the economical level of Shaanxi is belong to the underdevelopment province.