基于能值分析的新疆玛纳斯河流域绿洲生态经济评价

Appraisal of Oasis Ecologic Economy Based on Energy Analysis in the Manas River Basin of Xinjiang Wei Autonomous Region

根据玛纳斯河流域生态环境及生态经济特征,用能值方法计算得出:流域能值自给率达98.06%,可更新资源能值比率65%,山地、荒漠是生态经济发展的支撑条件;总能值使用量仅有5.20×1022Sej/a,进口能值比例仅为13.46%,能值投入率0.09,人均能值使用量仅为1.12×1010Sej/a,均低于世界平均水平;能值使用强度仅有1.22×1011Sej/a,环境负荷率仅为12.12,能值产出率1.22,资源强度较弱,环境负荷率较低,应在立足区域特色优良低能值资源发展生态经济的同时,引进关键稀缺性高能值资源,加强高能值产品的反馈支持和贸易输出,在夯实生态流能值基础的同时施放能值利用及转换潜力。

Based on characteristics of ecologic environment and ecologic economy, energy resource use in the Manas River Basin of Xinjiang Wei Autonomous Region is calculated using the energy method. The calculation shows that the energy self-sufficiency ratio is 98.06 %, and the renewable resource energy ratio, 65 %, which indicate that mountain and desert are the main ecologic conditions to support the development of ecological economy. The total amount of energy use is 5.20×10^22 Sej/a, imported energy ratio, 13.46%, energy investment ratio, 0.09, and energy per person, 1.12×10^10 Sej/a, all of which are lower than the world levels. Energy use intensity is only 1.22×10^11 Sej/a, environment load, only 12.2, and energy yield ratio, 1.22, which show that resource development intensity is weaker, and environment load is lower. Therefore, while developing ecologic economy in the oasis based on regional characteristics and fine resources of low value energy, the key rare energy resources with high value must be introduced, and feedback support and trade output of high value energy products must be strengthened. While consolidating energy foundation, the attention must be paid to energy use and its transformation potential.