As to the energy flow, the energy production in cropland ecologic system is low-level and inefficient, and the structure of manure used is not diverse, fertilizer is the main manure.

 
  • 结果显示,在能流方面,本区农田生态系统的能量产出水平和效率都处于较低水平,农田肥料投入单一,主要以化肥为主。
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