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生态学杂志 ›› 1990, Vol. ›› Issue (6): 11-15.

• 研究报告 • 上一篇    下一篇

低丘红壤地区粮食作物光能利用率和农田能流分析

吕军1, 俞劲炎1, 张连佳2   

  1. 1. 浙江农业大学土化系;
    2. 浙江省十里丰农场农科所
  • 收稿日期:1988-02-03 修回日期:1988-05-10 出版日期:1990-12-10

Photo-utilization Efficiency of Grain Crop and Field Energy-flow Analysis in Low-hilly Red Soil Region

L? Jun1, Yu Jinyan1, Zhang Lianjia2   

  1. 1. Department of Soil Science and Agricultural Chemistry, Zhejiang Agricultural University;
    2. Institute of Agricultural Sciences, Zhejiang Province
  • Received:1988-02-03 Revised:1988-05-10 Online:1990-12-10

关键词: 总辐射, 光合有效辐射, 观测误差, 辐射仪器性能, 中国通量网

Abstract: Low-hilly red soil regions are important grain production areas in Zhejiang province.Theyhave abundant climatic resources and great productive potentials,but compared with highproductive areas in the province,the conversion ratio of input energy and the photo-utilization efficiency of grain crops are significantly lower.These regions are characterized byhigher crganic fertilizers input,which accounts for 70% of the total energy input for grainproduction.Balances between nutrient elements become more important in the grain production areas.

Key words: total radiation, photosynthetically active radiation, observation error, radiometer performance, ChinaFLUX