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
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张艳, 张丹桔, 张健, 杨万勤, 邓长春, 李建平, 李勋, 唐仕姗, 张明锦
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Effects of forest gap size on litter recalcitrant components of two tree species in Pinus massoniana plantations
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ZHANG Yan,ZHANG Dan-Ju,ZHANG Jian,YANG Wan-Qin,DENG Chang-Chun,LI Jian-Ping,LI Xun,TANG Shi-Shan,ZHANG Ming-Jin
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| 表1 样地基本概况(平均值±标准误差) |
| Table 1 The basic information of sampling plots (mean ± SE) |
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林窗
Gap | 面积
Area
(m2) | 海拔
Altitude
(m) | 坡度
Slope (°) | 坡向
Aspect | 土壤全碳
Total C in soil
(g·kg-1) | 土壤全氮
Total N in soil
(g·kg-1) | pH值
pH value | 土壤容重
Bulk density in soil
(g·cm-3) | 土壤最大持水量
Maximum moisture
capacity in soil (g·kg-1) | | G1 | 100 | 423 | 24.5 | SW | 10.67 ± 3.99 | 0.60 ± 0.21 | 4.1 ± 0.1 | 1.40 ± 0.14 | 435.5 ± 40.3 | | G2 | 225 | 438 | 26.0 | SE | 12.05 ± 3.51 | 0.58 ± 0.12 | 4.2 ± 0.3 | 1.20 ± 0.09 | 393.7 ± 31.9 | | G3 | 400 | 408 | 23.5 | SE | 10.90 ± 0.76 | 0.56 ± 0.06 | 4.2 ± 0.2 | 1.28 ± 0.08 | 394.1 ± 65.1 | | G4 | 625 | 424 | 24.0 | SE | 10.24 ± 1.47 | 0.53 ± 0.15 | 4.1 ± 0.1 | 1.35 ± 0.11 | 326.1 ± 68.2 | | G5 | 900 | 441 | 21.5 | S | 12.44 ± 1.21 | 0.67 ± 0.12 | 4.3 ± 0.2 | 1.41 ± 0.11 | 388.1 ± 75.1 | | G6 | 1 225 | 418 | 27.0 | SE | 16.58 ± 1.54 | 0.60 ± 0.05 | 4.4 ± 0.3 | 1.31 ± 0.17 | 416.2 ± 32.9 | | G7 | 1 600 | 430 | 26.0 | SE | 9.10 ± 1.37 | 0.53 ± 0.12 | 4.0 ± 0.1 | 1.29 ± 0.26 | 326.6 ± 21.1 | | CK | - | 427 | 23.0 | SE | 13.77 ± 4.08 | 0.66 ± 0.22 | 4.6 ± 0.2 | 1.41 ± 0.04 | 363.0 ± 54.7 |
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