Benefits in Mixed Forest of Cunninghamia lanceolata and Betula luminifera
Comparative studies were conducted on mixed forest of Cunninghamia lanceolata and Betula luminifera and pure Cunninghamia lanceolata forest in westren of Guangxi.The result showed that the growing stocks in stands of 35-year-old mixed forest was 441.087 m3*hm-2,which was by 3.6% higher than those of the same years old forests of pure Cunninghamia lanceolata.The mean standing crop of litteron forest floor in mixed forest was 13.18 t*hm-2 and the mass concentration of N,P,K,Ca,Mg were 158.3,6.1,16.5,86.3,32.3 kg*hm-2,respectively.Being by 9.7%,76.7%,69.4%,96.4%,83.2%,17.0% higher than that of pure Cunninghamia lanceolata forest,respectively.In mixed forest,the soil volume weight (0～100 cm) were 0.81～1.22 g*cm-3,were 1.0%～8.0% lower than that of pure Cunninghamia lanceolata,but it total poresity aeration porosity and moisture capacty were 2.0％～3.9％ higher than that of pure Cunninghamia lanceolata,respectively.The nutrientconcentration of organic matter,TN,hydrolazable N,available P and repidly available K in the soil,being by 5.5%～49.8% higher than that of pure Cunninghamia lanceolata,respectively.
Cunninghamia lanceolataBetula luminiferamixed forestbenefitsWestern of Guangxi
国家科技期刊平台
NSTL
万方数据
维普
