关键词: 作物温度, 生长监测, 冠层温度, 热成像

Abstract: Crop temperature is derived from the energy exchange between the crop and the environment, the change of crop temperature is an effective monitoring indicator of crop growth. Infrared thermal imaging technology can reflect the surface temperature of the object through the infrared thermal radiation of the object. Currently, crop temperature is always explored as an affiliated issue from the aspect of energy budget instead of a synthetic and logic consideration．In order to analysis the causes of crop temperature comprehensively, this paper made a brief review on crop temperature from external reason, internal reason and monitoring method; introduced the factors of affecting temperature, including variety characteristics, growth period, different organs, light, temperature, water, CO2, wet, wind, planting density, fertilization, etc. Also, the application of thermal infrared technology in the monitoring of crop growth status was described. Finally, the problems existing in the field of crop monitoring were summarized, and the future research was prospected.

Key words: crop temperature, growth monitoring, canopy temperature, thermal imaging