莆田沿海低丘旱作区不同种植结构能量分析与评价
Analysis and Evaluation on Energy Structures in Different Planting Systems of Hilly Upland in Coastal Area of Putian City
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摘要: 根据生态系统能量输入、输出原理,运用主成分分析和聚类分析法对福建省莆田市沿海旱地10种主要种植结构进行分析,结果分为五类:1.高投入低产出型;2.低投入低产出型;3.中间型;4.高投入高产出型;5.高产高效型。并对各类种植结构进行全面评述,为今后种植结构调整、发展提供参考。Abstract: Based on the energy-input and output principle in the system.10 main planting systems in coastasl upland area in Putian City of Fujian have been analysed using chief-factor analysis and cluster analysis methods.These systems were divided into 5 types:1) high input with low output type;2) low input with low output type;3)intermidiate tpye;4)high input with high output;and 5) high output with high efficiency.Different types of planting systems have been comprehen-sively evaluated,it will provide the references for further adjustment and development of planting structure in Fujiann.
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Key words:
- Planting System /
- Energy transformation /
- Chief-factor analysis /
- Cluster analysis.
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