Sensitivity of local weather to different vegetation schemes using meso-scale model (MM5) Spatio-temporal variations of vegetation cover in northern Shaanxi Province under the background of ecological restoration. Analysis and assessment of heat resource for winter wheat northward moving during 1961-2001 in Shaanxi Province Vegetation change and its relationship with climate in the region along the Great Wall in northern Shaanxi Bioremediation of petroleum contaminated soil by plants and arbuscular mycorrhizal fungi in Northern Shaanx Nutrient characteristics of aeolian sandy soils under different utilization in northern Shaanxi PRELIMINARY STUDIES ON THE STRUCTURE AND DYNAMICS OF PLATYCLADUS ORIENTALIS POPULATION AT THE FOREST AREA IN LOESS PLATEAU OF NORTHERN SHAANXI PROVINCE THE TAXONOMY AND ANALYSIS OF ARTEMISIA LINN.IN THE LOESS PLATEAU OF NORTHERN SHAANXI A PRELIMINARY STUDY ON THE BORDER LINE OF THE FLORISTlC REGIONALIZATION IN THE LOESS PLATEAU OF NORTHERN SHAANXI Monitoring and assessment of vegetation variation in Northern Shaanxi based on MODIS/NDVI Observation of almond-apricot growth characteristics in Loess Hilly and Gully Region of northern Shaanxi Photosynthetic mechanisms of northern boundary formation of Quercus wutaishanica forest in Loess Plateau of northern Shaanxi Province. Soil Water Carrying Capacity of an Apricot Forest on Loess Region in Northern Shaanxi Study on the Cenozoic Flora and Flora Evolution of the Loess Plateau of Northern Shaanxi Province THE RELATION AMONG ECOLOGICAL FACTORS AND DIAMETER GROWTH OF PLATYCLADUS ORIENTALIS IN THE SOUTH OF NORTHERN SHAANXI PROVINCE