A comparative study on spatial distribution pattern and its dynamics of Quercus variabilis populations among different forest areas in Shaanxi Proviance,China The species and distribution of the water vascular plants at the Han river basin in Hanzhong,Shaanxi Province Studies on the types of natural grassland in North Shaanxi province Quantitative classification and environmental interpre tation on forest communities in Loess Plateau of the north of Shaanxi Province Observation of almond-apricot growth characteristics in Loess Hilly and Gully Region of northern Shaanxi Space-time distribution pattern of flavonoid content and caloric value in ginkgo leaves in Shaanxi province The simulation study of the rehabilitation of ecological environments and the sustainable developments of agriculture, forestry, animal husbandry in the loess hilly regions in Shanxi Province, Shaanxi Province and Ningxia Automous Region Monitoring and Evaluation of Apple Pesticide Residues in Shaanxi Four Newly Recorded Species of Plant from Shaanxi,China A New Orchidaceae Record in Shaanxi Province——Neofinetia and Neofinetia richardsiana Christenson Molecular detection of stripe rust resistance genes in 115 wheat varieties(lines) from Shaanxi Province Rediscovery of Endangered Plant Primula filchnerae Knuth in Shaanxi Province A FLORISTIC STUDY ON WOODY PLANTES IN SHANXI Two New Records of Cephaloziellaceae from Qinling Mountain,Shaanxi Ceropegia Linn.(Asclepiadaceae)——A Newly Recorded Genus of Shaanxi Androsace erecta——A Newly Recorded Species of Primulaceae from Shaanxi