Crop Water Stress Index (Cwsi) Mapping For Evaluation Of Abnormal Growth Of Spring Chinese Cabbage Using Drone-Based Thermal Infrared Image
KOREAN JOURNAL OF REMOTE SENSING(2020)
摘要
Crop water stress can be detected based on soil moisture content, crop physiological characteristics and remote-sensing technology. The detection of crop water stress is an important issue for the accurate assessment of yield decline. The crop water stress index (CWSI) has been introduced based on the difference between leaf and air temperature. In this paper, drone-based thermal infrared image was used to map of crop water stress in water control plot (WCP) and water deficit plot (WDP) over spring chinese cabbage fields. The spatial distribution map of CWSI was in strong agreement with the abnormal growth response factors (plant height, plant diameter, and measured value by chlorophyll meter). From these results, CWSI can be used as a good method for evaluation of crop abnormal growth monitoring.
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关键词
Crop Water Stress Index (CWSI), abnormal growth, thermal infrared, spring chinese cabbage, drone
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