In 1978 the ecological surplus was 0.4009 ha, and in 1992 ecological deficit arose, which rose to 0.2958 ha by 2002.
陕西省1978 年的生态盈余为0.4009 ha,1992 年出现生态赤字,2002 年人均生态赤字增至0.2958 ha。
参考来源 - 陕西省生态足迹和生态承载力动态研究·2,447,543篇论文数据，部分数据来源于NoteExpress
湖北省生态盈余强度虽然还处于负值，但是其数值是在波动中上升的。
Although per capita ecological surplus value was still negative in Hubei province, it was being rised in the undulation.
由于间种山毛豆增加了生态系统的养分收入，减少了水土流失的养分支出，系统的各种养分出现了盈余的状况。
Due to the increase in nutrient input of the ecosystem and the decrease in the nutrient output from soil and water loss, the nutrients in the system are surplus.
结果表明：该农户生态系统能量和物质的投入均以有机为主，农田土壤库中氮、磷、钾均有盈余。
Results showed that energy and materials input were mainly organic. There were surplus of nitrogen, phosphorus and potassium in the farmland soil pool.
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