马尾松人工林林窗大小对两种凋落叶难降解物质含量的影响

张艳, 张丹桔, 张健, 杨万勤, 邓长春, 李建平, 李勋, 唐仕姗, 张明锦

Effects of forest gap size on litter recalcitrant components of two tree species in Pinus massoniana plantations

ZHANG Yan,ZHANG Dan-Ju,ZHANG Jian,YANG Wan-Qin,DENG Chang-Chun,LI Jian-Ping,LI Xun,TANG Shi-Shan,ZHANG Ming-Jin

表3 凋落叶养分和难降解物质初始含量(平均值±标准误差)

Table 3 Initial contents of C, N, P and recalcitrant components in litters (mean ± SE)

物种 Species	C (g·kg^-1)	N (g·kg^-1)	P (g·kg^-1)	总酚 Total phenol (g·kg^-1)	缩合单宁 Condensed tannins (g·kg^-1)	木质素 Lignin (g·kg^-1)	纤维素 Cellulose (g·kg^-1)
红椿 Toona ciliata	674.51 ± 10.53^A	58.14 ± 1.68^A	1.67 ± 0.09^A	29.60 ± 0.79^A	3.67 ± 0.22^B	70.1 ± 13.0^B	106.7 ± 7.10^B
樟 Cinnamomum camphora	554.55 ± 19.14^B	36.01 ± 2.61^B	0.85 ± 0.01^B	14.70 ± 0.96^B	14.4 ± 18.0^A	214.05 ± 3.61^A	189.90 ± 25.5^A