For the production state of fuel ethanol from summer corn in China, carbon budgets in overall life cycle of the ethanol were evaluated and its main influence factors were identified.

以我国夏玉米燃料乙醇的生产为例，计算了玉米燃料乙醇生命周期的净碳排放量并对其影响因素进行了分析。

youdao

The method of net energy analysis for fuel ethanol from corn was developed based on principles of life cycle inventory(LCI) analysis.

基于生命周期清单分析原理，建立了玉米燃料乙醇的净能量分析方法。

youdao

The methodology of carbon balance analysis for fuel ethanol from corn was developed based on principles of life cycle analysis.

基于生命周期分析原理，建立了玉米燃料乙醇的碳平衡分析方法。

youdao

If you look at across the whole life cycle of growing corn, making ethanol and burning it in a car, and compare that to what happens when you find oil and make gasoline and burn it in a car, you only have about 15 percent less greenhouse gas going into the air from burning ethanol than you would if you're burning gasoline.

NPR: Biofuels and Food Prices