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5 林窗面积、采样时间及交互作用对两种凋落叶难降解物质含量的影响

Table 5 Effects of gap sizes, sampling time, and the interaction of them on the content of litter recalcitrant components for two species

物种 Species 位置 Positions 影响因素 Impact factors 缩合单宁 Condensed tannins 总酚 Total phenol 木质素 Lignin 纤维素 Cellulose F p F p F p F p 樟 Cinnamomum camphora GC G 1.794 0.117 0.850 0.537 1.565 0.127 1.559 0.176 T 7.769 <0.01 53.553 <0.01 4.986 <0.01 67.587 <0.01 G × T 2.331 <0.01 2.260 <0.05 3.377 <0.01 2.760 <0.01 GE G 0.825 0.554 0.674 0.671 1.928 0.092 0.464 0.832 T 14.704 <0.01 31.162 <0.01 13.840 <0.01 9.240 <0.01 G × T 1.050 0.424 1.324 0.209 1.558 0.105 1.653 0.078 红椿 Toona ciliata GC G 2.500 <0.05 6.126 <0.01 15.176 <0.01 0.909 0.495 T 44.060 <0.01 215.101 <0.01 206.146 <0.01 25.992 <0.01 G × T 3.360 <0.01 2.581 <0.01 16.608 <0.01 1.165 0.321 GE G 1.261 0.290 2.673 0.052 3.639 <0.01 0.795 0.578 T 13.987 <0.01 196.983 <0.01 49.604 <0.01 7.018 <0.01 G × T 3.740 <0.01 1.721 0.063 2.433 <0.01 0.393 0.983