The results showed that (1) supplementary energy input, energy transformation efficiency and output energy of farming sub-system were still in low level .
结果表明：（1）种植业亚系统的人工辅助能投入和能量的产出都在逐年迅速增加，但能量的投入和产出均处于较低水平，能量利用效率低。
The results showed that (1) supplementary energy input, energy transformation efficiency and output energy of farming sub-system were still in low level .
结果表明：（1）种植业亚系统的人工辅助能投入和能量的产出都在逐年迅速增加，但能量的投入和产出均处于较低水平，能量利用效率低。
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