Drought stress can affect the growth and development of crops, which can bring huge disaster to crop planting. With the aim to master plant drought condition accurately, an easy and efficient drought monitoring method...Drought stress can affect the growth and development of crops, which can bring huge disaster to crop planting. With the aim to master plant drought condition accurately, an easy and efficient drought monitoring method using remote sensing was constructed through the establishment of the normalized difference vegetation index （NDVI）, which was a kind of universality index, based on the high temporal resolution MODIS data with the summer crops in Shandong Province as the study object, as well as the growing state and drought conditions of the crops judged by observing and analyzing the changes in time and space. The method was fit for the crops during vegetative growth stage, and with simple principle and easy operation, the method was easy for technology promotion.展开更多
文摘Drought stress can affect the growth and development of crops, which can bring huge disaster to crop planting. With the aim to master plant drought condition accurately, an easy and efficient drought monitoring method using remote sensing was constructed through the establishment of the normalized difference vegetation index （NDVI）, which was a kind of universality index, based on the high temporal resolution MODIS data with the summer crops in Shandong Province as the study object, as well as the growing state and drought conditions of the crops judged by observing and analyzing the changes in time and space. The method was fit for the crops during vegetative growth stage, and with simple principle and easy operation, the method was easy for technology promotion.
