Energy of forest floor in natural and monoculture plantation forests of Castanopsis kawakamii
Caloric value and the standing crop of energy of forest floor were studied in a natural forest of Castanopsis kawakamii ( NF) and adjacent monoculture plantations of C. kawakamii ( CK) and Chinese fir ( Cunninghamia lanceolata ,CF) in Sanming, Fujian, China. The results showed that gross caloric values of leaf litter in the NF, CK and CF were higher in the L layer than those in the F layer, which was the same for ash free caloric values. The standing crop of energy in forest floor of the NF was 16 125. 72 kJ·m-2, being 24. 29% and 81. 63% higher than those in forest floors of the CK and CF respectively. Of the total standing crop of energy in forest floor, leaf litter represented the greatest proportion followed by branch litter. The standing crop of energy in leaf litter constituted 63. 76% , 56. 32% and 43. 64% respectively.
国家科技期刊平台
NSTL
万方数据
维普
