盘锦农户生态系统能流和物流分析

Energy and Material Flows in the Household Ecosystem in Panjin Region

本文分析了大洼县榆树农场青年分场农户杨玉宝生态系统的投能结构、水平、效率和农田养分平衡、物质转化。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。由于系统内物质的反馈,能量转换率较高。

The structure,level and efficiency of energy input as well as farmland nutrient balance and material transfer for a household in Yushu Farm in Dawa County of Liaoning province were analysed in this study. Results showed that energy and materials input were mainly organic. There were surplus of nitrogen, phosphorus and potassium in the farmland soil pool. Energy conversion rate was higher because of the feedback of materials in the system.