Abstract:The individual growth and nutrient contents for photosynthetic organ of the sharptooth oak stands in Mt Qinling with seasonal variation have been studied in this paper The individual leaf area and dry matter content of the sharptooth oak stands with seasonal variation followed different S curves, the ratio between leaf area and dry matter followed imperfect S curve The period from budding to fallen leaves of sharptooth oak stands lasted about 160 days, the absolute increment of foliage dry matter in...