Effects of Reforestation Methods on Forest Soil Properties in Mid-subtropical Mountainous Area in the South of China
Through field investigation and laboratory analysis, the soil physical and chemical properties were compared between Cunninghamia lanceolata and Castanopsis carlesii plantations under two different reforestation treatments in mid-subtropical mountainous area in the South of China. The resuits showed that the soil bulk density in the surface (0 - 10 cm) of Chinese fir plantation was significantly higher than that in the CastaNopsis carlesii plantation (P 〈 0. 05 ) ; the soil organic carbon content (SOC), total N and P, hydrolysable N and available P in both plantations decreased generally with soil depth; the surface (0 -10 cm) SOC of Castanopsis carlesii was 15.6% higher than that of Chinese fir plantation, and the total N and P, hydrolysable N and available P of Castanopsis carlesii were higher than those of Chinese fir. In addition, the soil degradation index showed that the soil quality in Chinese fir plantation was poorer than in Castanopsis carlesii plantation.
reforestation measurementsoil physical and chemical propertiesplantationartificially promoted regeneration pattern