The plant chlorophyll content and the dynamic change, which can be reflected by SPAD, have impor- tant significance in evaluating crop production capacity and predicting crop yields and quality. Taking the winter wheat in Hou Lake Management District, Qianjiang City, Hubei province as the study object, through field obser- vation in different growth period of winter wheat leaves of SPAD change situation, this paper combined with syn- chronous monitoring using the HJ-1 satellite independently developed by China, chose and calculated the RVI, DVI...