Net nitrogen mineralization in soils under four forest communities in Hunan Province The effects of temperature and moisture on the soil net nitrogen mineralization in an Aneulolepidium chinensis grassland,Inner Mongolia,China EFFECTS OF NITROGEN ADDITION ON NET NITROGEN MINERALIZATION IN LEYMUS CHINENSIS GRASSLAND, INNER MONGOLIA, CHINA Effects of vegetation type and slope position on soil nitrogen transformation rate in Karst regions The Effects of Nitrogen Addition on Soil Nitrogen Mineralization in the Semi-arid Typical Grassland of Loess Plateau Impacts of different land use types on soil nitrogen mineralization in Danjiangkou Reservoir Area, China Temporal and spatial patterns of soil nitrogen mineralization and nitrification in four temperate forests The Effects of Different Grass Species on Soil Nitrogen Mineralization in Apple Orchard The Effects of Different Grass Species on Soil Nitrogen Mineralization in Apple Orchard