Abstract
Through analysis of perpendicular vegetation index (PVI) from combination of visible and near-infrared spectrums reflecting the feature of crop reflectance, we come to the conclusion that the index can better indicate crop instantaneous photosynthesis whereas people generally regard it as the representation of crop leaf area index (LAI). Exploration of crop photosynthesis within a day and its period of duration leads to production of photosynthetic vegetation index (PST) that can reflect the whole crop accumulated photosynthesis, which means the total biomass produced by crop, moreover the method simulating PST is put forward by employment of multi-temporal spectrum parameters. On the basis of the achievements mentioned above, a new comprehensive model for remote sensing estimation of maize yield is established, which can comprehensively show major physiological actions of maize and the course of its yield formation, organically integrate various effective ways of crop yield estimation. It lays a solid foundation for carrying out remote sensing estimation of maize yield on a large scale.
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References
Feng Xiuzao et al., 1991. Principle of Agricultural Meteorology. Beijing: Meteorology Press. (in Chinese)
Li Bohang et al., 1992. Theory of High Maize Yield and Technique of Its Cultivation. Beijing: Agricultural Press. (in Chinese)
Liu Zhaoli, 1993. Study on model of remote sensing estimation of maize yield. In: Master’s Degree Paper of Chinese Academy of Science. (in Chinese)
Liu Zhaoli, Zhang Yangzhen, 1993. Research on model of remote sensing estimation of maize output in Lishu County. In: Research on Techniques of Remote Sensing Estimation of Wheat, Maize, Rice Output. Beijing: Chinese Science and Techniques Press. (in Chinese)
Xue Xiru et al., 1991. Model of remote sensing estimation of winter wheat output. In: Research on Environmental Monitoring and Crop Output Estimation by Remote Sensing. Beijing: Beijing University Publishing House. (in Chinese)
Yan Jingyi et al., 1995. Analysis of Estimation and its Regularity of Accumulated Wheat Photosynthetic Product. Beijing: Chinese Agricultural Meteorology. 16(1), 5–8: (in Chinese)
Zhang Renhua, 1990. An improved pattern of remote sensing estimation of crop output. Remote Sensing & Telemonitoring and Their Computer Application. Beijing: Meteorology Press. (in Chinese)
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Liu, Z., Huang, T., Wan, E. et al. Study on model for remote sensing estimation of maize yield. Chin. Geograph.Sc. 8, 161–167 (1998). https://doi.org/10.1007/s11769-997-0030-0
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DOI: https://doi.org/10.1007/s11769-997-0030-0