Research Progress and Prospect on Soil Nutrients Monitoring with Remote Sensing
Soil nutrition status information is an important premise for precise field management.Methods on remote sensing based soil nutrients estimation were categorized into direct and indirect methods based on an analysis and summarization of recent researches in the field.Direct method uses soil spectral characteristics to estimate soil nutrients,while indirect method uses the crop growing characteristics under different soil nutrition levels to evaluate soil nutrients.The comprehensive comparison of these two methods show that pointed that the methods have their own advantages and the combination of the two methods can effectively improve the precision and integrality of soil nutrients estimation.Prospects on soil nutrients monitoring with remote sensing were provided in conclusion.
NETL
NSTL
万方数据
维普
