Distribution and characters of soil dry layer in north Shaanxi Loess Plateau Soil moisture ecological environment of artificial vegetations in steep slope of loess region in North Shaanxi Province Studies on the types of natural grassland in North Shaanxi province Structure and species diversity of Xanthoceras sorbifolia community in the Loess Plateau of North Shaanxi Food security in ‘Grain for Green Project&rsquo|area of North Shaanxi based on households. Effect of Slope Micro-topography on Spatial Distribution of Trees in Loess Area of North Shaanxi Province, China Atmospheric dry and wet nitrogen deposition |in typical agricultural areas of North Shaanxi.  Adaptabilities of Jujube Varieties of Fresh Use in North Shaanxi Province