Abstract:The results of forestation with mixed broadleaf trees in planting Cunninghamia Ianceolata at Linduo Forest Farm in Guangxi Province showed that the total growing stocks in stands of 19-year-old and 30-year-old mixed forests were 184.78 and 515.58m3 hm(-2),respeCtively, which were by 23.0% and 21.8% higher than those of the same years old forests of pure Cunninghamia lanceolata, respectively. In mixed forests, the larger proportion of broadleaf species, the less became mean height, diameter and growing stocks of Cunninghamia lanceolata. The mean standing crop of litter on forest floor in mixed forests was 15.18t hm(-2), and the accumulation of nutrient elements (N, P, K, Ca, Mg) in the litter was 422.22kg hm(-2), being by 25.30% and 32.33% higher than those in pure Cunninghamia Ianceolata forest, respectively. The nutrient concentration of organic matter, total N,hydrolazable N, available P and rapidly available K in the soil, and soil porosity and water-holding capacity under mixed forest were higher than those under pure Cunninghamia Ianceolata forest.