Ascertainment and application of precision model in biomass estimate as well as parameter identification Inversion of vegetation canopy’s chlorophyll content based on airborne hyperspectral image. Analysis the relationship between ecological footprint (EF) of ningxia and influencing factors: Partial Least-Squares Regression (PLS) Optimization for compatibility of Ramulus Uncariae cum Uncie total alkaloids and Semen Raphani total alkaloids based on partial least-squares regression analysis Correlation between ginsenoside contents in Panax ginseng roots and ecological factors, and ecological division of ginseng plantation in China Analysis of Tuber Characters Impact on Potato Tuber Bruises Analysis of Tuber Characters Impact on Potato Tuber Bruises Comparison of three regression analysis methods for application to LAI inversion using Hyperion data T-square study on spatial pattern and regeneration of Betula albo-sinensis Burkill population on west slope of Jiuding Mountain