Study on the Degeneration of Alpine Meadow Grassland in Qingzhang Plateau with Remote Sensing Techniques Resources survey of Glycyrrhiza uralensis based on remote sensing technique Discussion on Prediction of Wood Properties and Product Values of Plantation by Remote Sensing Technology A review on research of implement application for crop simulation model in regional scale by using remote sensing technology Researches on the relationship between the water erosion modulus and the earth surface factors in Jilin Province