Biodiv Sci ›› 2017, Vol. 25 ›› Issue (10): 1085-1094. DOI: 10.17520/biods.2017148
Special Issue: 土壤生物与土壤健康
• Original Papers: Plant Diversity • Previous Articles Next Articles
Yili Guo1,2, Dongxing Li1,2, Bin Wang1,2, Kundong Bai1,2, Wusheng Xiang1,2, Xiankun Li1,2,*
Received:
2017-05-17
Accepted:
2017-10-16
Online:
2017-10-20
Published:
2018-05-05
Contact:
Li Xiankun
Yili Guo, Dongxing Li, Bin Wang, Kundong Bai, Wusheng Xiang, Xiankun Li. C, N and P stoichiometric characteristics of soil and litter fall for six common tree species in a northern tropical karst seasonal rainforest in Nonggang, Guangxi, southern China[J]. Biodiv Sci, 2017, 25(10): 1085-1094.
编号 No. | 种名 Species | 个体数 No. of individuals | 平均胸径 Mean DBH (cm) | 2014年凋落量 Litter fall in 2014 (kg/ha) | 偏好生境 Preferred habitat | 海拔 Altitude (m) |
---|---|---|---|---|---|---|
SP1 | 海南椴 Diplodiscus trichosperma | 1,982 | 6.65 | 425.1 | 上坡位 Upper slope | 290.2 |
SP2 | 闭花木 Cleistanthus sumatranus | 11,982 | 4.57 | 694.3 | 上坡位 Upper slope | 279.2 |
SP3 | 广西牡荆 Vitex kwangsiensia | 9,403 | 7.87 | 542.5 | 中坡位 Middle slope | 253.9 |
SP4 | 苹婆 Sterculia monosperma | 9,066 | 5.00 | 470.9 | 中坡位 Middle slope | 244.1 |
SP5 | 中国无忧花 Saraca dives | 194 | 13.67 | 161.3 | 低坡位 Lower slope | 211.0 |
SP6 | 广西棋子豆 Archidendron guangxiensis | 507 | 7.76 | 127.9 | 低坡位 Lower slope | 207.9 |
Table 1 Characteristics and preferred habitats of six common tree species of the 15 ha forest dynamics plot in Nonggang, Guangxi
编号 No. | 种名 Species | 个体数 No. of individuals | 平均胸径 Mean DBH (cm) | 2014年凋落量 Litter fall in 2014 (kg/ha) | 偏好生境 Preferred habitat | 海拔 Altitude (m) |
---|---|---|---|---|---|---|
SP1 | 海南椴 Diplodiscus trichosperma | 1,982 | 6.65 | 425.1 | 上坡位 Upper slope | 290.2 |
SP2 | 闭花木 Cleistanthus sumatranus | 11,982 | 4.57 | 694.3 | 上坡位 Upper slope | 279.2 |
SP3 | 广西牡荆 Vitex kwangsiensia | 9,403 | 7.87 | 542.5 | 中坡位 Middle slope | 253.9 |
SP4 | 苹婆 Sterculia monosperma | 9,066 | 5.00 | 470.9 | 中坡位 Middle slope | 244.1 |
SP5 | 中国无忧花 Saraca dives | 194 | 13.67 | 161.3 | 低坡位 Lower slope | 211.0 |
SP6 | 广西棋子豆 Archidendron guangxiensis | 507 | 7.76 | 127.9 | 低坡位 Lower slope | 207.9 |
Fig. 1 Soil C, N, P contents and stoichiometry along altitude gradient of the 15 ha forest dynamics plot in Nonggang, Guangxi. ■ Depression; ○ Lower slope; ▲ Middle slope; □ Higher slope; ● Hilltop.
生境类型 Habitat category | C (g/kg) | N (g/kg) | P (g/kg) | C : N | C : P | N : P |
---|---|---|---|---|---|---|
峰顶 Hilltop | 141.82 ± 7.97a | 9.25 ± 0.58a | 0.70 ± 0.04a | 15.44 ± 0.42a | 207.67 ± 13.90a | 13.59 ± 1.05a |
高坡位 Upper slope | 121.01 ± 8.38b | 7.77 ± 0.45ab | 0.79 ± 0.08a | 15.93 ± 1.33a | 159.75 ± 13.30b | 10.70 ± 1.16ab |
中坡位 Middle slope | 103.56 ± 6.69c | 6.63 ± 0.36b | 1.18 ± 0.102ab | 15.65 ± 0.56a | 93.332 ± 9.10c | 6.00 ± 0.58b |
低坡位 Lower slope | 103.66 ± 4.67c | 6.32 ± 0.37b | 1.67 ± 0.11b | 16.59 ± 0.56a | 63.57 ± 3.818d | 3.87 ± 0.26c |
洼地 Depression | 90.38 ± 6.68d | 5.26 ± 0.38c | 2.40 ± 0.19c | 17.54 ± 1.25ab | 40.77 ± 4.96e | 2.32 ± 0.25cd |
Table 2 Soil C, N, P contents and stoichiometry (mean ± SE) in different habitat categories of the 15 ha forest dynamics plot in Nonggang, Guangxi
生境类型 Habitat category | C (g/kg) | N (g/kg) | P (g/kg) | C : N | C : P | N : P |
---|---|---|---|---|---|---|
峰顶 Hilltop | 141.82 ± 7.97a | 9.25 ± 0.58a | 0.70 ± 0.04a | 15.44 ± 0.42a | 207.67 ± 13.90a | 13.59 ± 1.05a |
高坡位 Upper slope | 121.01 ± 8.38b | 7.77 ± 0.45ab | 0.79 ± 0.08a | 15.93 ± 1.33a | 159.75 ± 13.30b | 10.70 ± 1.16ab |
中坡位 Middle slope | 103.56 ± 6.69c | 6.63 ± 0.36b | 1.18 ± 0.102ab | 15.65 ± 0.56a | 93.332 ± 9.10c | 6.00 ± 0.58b |
低坡位 Lower slope | 103.66 ± 4.67c | 6.32 ± 0.37b | 1.67 ± 0.11b | 16.59 ± 0.56a | 63.57 ± 3.818d | 3.87 ± 0.26c |
洼地 Depression | 90.38 ± 6.68d | 5.26 ± 0.38c | 2.40 ± 0.19c | 17.54 ± 1.25ab | 40.77 ± 4.96e | 2.32 ± 0.25cd |
物种 Species | C (g/kg) | N(g/kg) | P (g/kg) | C : N | C : P | N : P |
---|---|---|---|---|---|---|
海南椴 Diplodiscus trichosperma | 586.24 ± 47.25b | 16.37 ± 2.71b | 0.63 ± 0.11c | 36.43 ± 1.33b | 941.69 ± 34.37b | 26.12 ± 1.21b |
闭花木 Cleistanthus sumatranus | 624.66 ± 32.53a | 13.30 ± 4.47c | 0.41 ± 0.08cd | 50.71 ± 3.70a | 1,582.98 ± 92.82a | 32.32 ± 2.08b |
广西牡荆 Vitex kwangsiensia | 581.99 ± 56.14b | 20.42 ± 3.06a | 1.08 ± 0.15ab | 28.88 ± 1.09c | 545 ± 23.32c | 18.97 ± 0.70c |
苹婆 Sterculia monosperma | 578.50 ± 33.51b | 16.31 ± 2.06b | 1.23 ± 0.27a | 36.04 ± 1.58b | 501.37 ± 39.61c | 13.84 ± 0.77d |
中国无忧花 Saraca dives | 578.49 ± 19.74b | 13.94 ± 2.23bc | 1.33 ± 0.31a | 42.64 ± 2.34ab | 450.20 ± 23.11c | 10.87 ± 0.81d |
广西棋子豆 Archidendron guangxiensis | 649.00 ± 51.29a | 21.24 ± 2.54a | 0.48 ± 0.08cd | 31.00 ± 1.31c | 1,397.22 ± 88.93a | 45.10 ± 2.02a |
Table 3 Litter fall C, N, P contents and stoichiometry (mean ± SE) of six common tree species of the 15 ha forest dynamics plot in Nonggang, Guangxi
物种 Species | C (g/kg) | N(g/kg) | P (g/kg) | C : N | C : P | N : P |
---|---|---|---|---|---|---|
海南椴 Diplodiscus trichosperma | 586.24 ± 47.25b | 16.37 ± 2.71b | 0.63 ± 0.11c | 36.43 ± 1.33b | 941.69 ± 34.37b | 26.12 ± 1.21b |
闭花木 Cleistanthus sumatranus | 624.66 ± 32.53a | 13.30 ± 4.47c | 0.41 ± 0.08cd | 50.71 ± 3.70a | 1,582.98 ± 92.82a | 32.32 ± 2.08b |
广西牡荆 Vitex kwangsiensia | 581.99 ± 56.14b | 20.42 ± 3.06a | 1.08 ± 0.15ab | 28.88 ± 1.09c | 545 ± 23.32c | 18.97 ± 0.70c |
苹婆 Sterculia monosperma | 578.50 ± 33.51b | 16.31 ± 2.06b | 1.23 ± 0.27a | 36.04 ± 1.58b | 501.37 ± 39.61c | 13.84 ± 0.77d |
中国无忧花 Saraca dives | 578.49 ± 19.74b | 13.94 ± 2.23bc | 1.33 ± 0.31a | 42.64 ± 2.34ab | 450.20 ± 23.11c | 10.87 ± 0.81d |
广西棋子豆 Archidendron guangxiensis | 649.00 ± 51.29a | 21.24 ± 2.54a | 0.48 ± 0.08cd | 31.00 ± 1.31c | 1,397.22 ± 88.93a | 45.10 ± 2.02a |
Fig. 2 Litter fall C, N, P contents and stoichiometry (mean ± SE) of six common tree species of the 15 ha forest dynamics plot in Nonggang, Guangxi. The six common tree species are the same as in Table 1.
物种 Species | 季节 Season | C (g/kg) | N (g/kg) | P (g/kg) | C : N | C : P | N : P |
---|---|---|---|---|---|---|---|
海南椴 Diplodiscus trichosperma | 春季 Spring | 631.96 ± 38.12a | 17.63 ± 0.12ab | 0.65 ± 0.06a | 35.83 ± 2.09ab | 984.01 ± 56.99a | 27.63 ± 2.11a |
夏季 Summer | 606.89 ± 8.12ab | 19.40 ± 1.33a | 0.73 ± 0.09a | 31.65 ± 2.66b | 853.47 ± 34.03ab | 27.48 ± 4.53a | |
秋季 Autumn | 546.15 ± 5.891b | 13.75 ± 0.87c | 0.58 ± 0.05ab | 40.00 ± 2.27a | 949.01 ± 76.93a | 23.70 ± 1.20a | |
冬季 Winter | 559.95 ± 11.48b | 14.71 ± 0.87c | 0.57 ± 0.03ab | 38.24 ± 1.64a | 980.29 ± 44.97a | 25.66 ± 0.87a | |
闭花木 Cleistanthus sumatranus | 春季 Spring | 644.94 ± 35.61a | 13.01 ± 0.87b | 0.43 ± 0.02ab | 50.12 ± 4.18ab | 1,501.64 ± 150.05b | 30.17 ± 2.54b |
夏季 Summer | 636.59 ± 5.45a | 19.48 ± 2.67a | 0.50 ± 0.02a | 33.93 ± 4.57b | 1,284.62 ± 38.53b | 39.70 ± 7.00a | |
秋季 Autumn | 599.37 ± 2.92a | 11.20 ± 0.35b | 0.39 ± 0.02b | 53.64 ± 1.98ab | 1,519.62 ± 84.76b | 28.32 ± 0.96b | |
冬季 Winter | 617.74 ± 3.67a | 9.50 ± 0.32b | 0.31 ± 0.02c | 65.13 ± 1.99a | 2,026.05 ± 101.94a | 31.10 ± 1.13b | |
广西牡荆 Vitex kwangsiensia | 春季 Spring | 621.14 ± 37.60a | 20.91 ± 0.63a | 0.96 ± 0.03b | 29.88 ± 2.78a | 646.18 ± 25.58a | 21.84 ± 1.20a |
夏季 Summer | 604.61 ± 23.11a | 24.87 ± 0.13a | 1.28 ± 0.05a | 24.31 ± 0.99ab | 474.81 ± 34.03b | 19.48 ± 0.64a | |
秋季 Autumn | 568.00 ± 3.49a | 18.62 ± 0.15b | 1.05 ± 0.02b | 30.51 ± 0.34a | 541.27 ± 9.08ab | 17.75 ± 0.49a | |
冬季 Winter | 534.22 ± 39.44ab | 17.29 ± 0.47b | 1.04 ± 0.10b | 30.84 ± 1.72a | 517.75 ± 45.97ab | 16.80 ± 1.15a | |
苹婆 Sterculia monosperma | 春季 Spring | 612.08 ± 26.03a | 14.98 ± 0.73b | 0.97 ± 0.06b | 41.13 ± 3.21a | 635.44 ± 60.17a | 15.41 ± 0.25a |
夏季 Summer | 556.00 ± 15.59a | 19.44 ± 0.60a | 1.49 ± 0.05a | 28.63 ± 0.75b | 373.98 ± 16.39c | 13.05 ± 0.31a | |
秋季 Autumn | 562.55 ± 3.54a | 15.23 ± 0.48b | 1.22 ± 0.12ab | 37.01 ± 1.35a | 470.92 ± 44.59b | 12.84 ± 1.68a | |
冬季 Winter | 583.38 ± 13.02a | 15.61 ± 0.19b | 1.24 ± 0.23ab | 37.38 ± 0.60a | 525.13 ± 103.88b | 14.06 ± 2.84a | |
中国无忧花 Saraca dives | 春季 Spring | 589.41 ± 9.94a | 14.64 ± 0.69a | 1.39 ± 0.28a | 40.47 ± 2.52b | 405.08 ± 67.98a | 10.15 ± 2.07a |
夏季 Summer | 589.05 ± 7.66a | 15.95 ± 0.47a | 1.55 ± 0.20a | 37.04 ± 1.54b | 440.75 ± 58.67a | 12.07 ± 2.12a | |
秋季 Autumn | 566.74 ± 2.26a | 14.16 ± 0.58a | 1.19 ± 0.10ab | 40.14 ± 1.54b | 484.56 ± 41.07a | 12.09 ± 1.06a | |
冬季 Winter | 568.74 ± 17.89a | 11.01 ± 1.22b | 1.21 ± 0.04ab | 52.90 ± 5.95a | 470.40 ± 11.80a | 9.15 ± 1.15a | |
广西棋子豆 Archidendron guangxiensis | 春季 Spring | 704.78 ± 13.80a | 21.20 ± 0.48a | 0.42 ± 0.06b | 33.31 ± 1.38a | 1,723.53 ± 216.60a | 51.83 ± 6.35a |
夏季 Summer | 614.27 ± 47.98b | 24.84 ± 0.59a | 0.57 ± 0.02a | 24.79 ± 2.17ab | 1,074.73 ± 58.67b | 43.66 ± 1.75ab | |
秋季 Autumn | 637.85 ± 4.48ab | 19.08 ± 0.54a | 0.44 ± 0.03b | 33.48 ± 1.09a | 1,476.42 ± 108.41ab | 43.97 ± 1.86ab | |
冬季 Winter | 639.11 ± 6.37ab | 19.84 ± 1.08a | 0.49 ± 0.01ab | 32.42 ± 2.01a | 1,314.19 ± 19.96ab | 40.92 ± 3.12ab |
Table 4 Litter fall C, N, P contents and stoichiometry (mean ± SE) of six common tree species in different seasons of the 15 ha forest dynamics plot in Nonggang, Guangxi
物种 Species | 季节 Season | C (g/kg) | N (g/kg) | P (g/kg) | C : N | C : P | N : P |
---|---|---|---|---|---|---|---|
海南椴 Diplodiscus trichosperma | 春季 Spring | 631.96 ± 38.12a | 17.63 ± 0.12ab | 0.65 ± 0.06a | 35.83 ± 2.09ab | 984.01 ± 56.99a | 27.63 ± 2.11a |
夏季 Summer | 606.89 ± 8.12ab | 19.40 ± 1.33a | 0.73 ± 0.09a | 31.65 ± 2.66b | 853.47 ± 34.03ab | 27.48 ± 4.53a | |
秋季 Autumn | 546.15 ± 5.891b | 13.75 ± 0.87c | 0.58 ± 0.05ab | 40.00 ± 2.27a | 949.01 ± 76.93a | 23.70 ± 1.20a | |
冬季 Winter | 559.95 ± 11.48b | 14.71 ± 0.87c | 0.57 ± 0.03ab | 38.24 ± 1.64a | 980.29 ± 44.97a | 25.66 ± 0.87a | |
闭花木 Cleistanthus sumatranus | 春季 Spring | 644.94 ± 35.61a | 13.01 ± 0.87b | 0.43 ± 0.02ab | 50.12 ± 4.18ab | 1,501.64 ± 150.05b | 30.17 ± 2.54b |
夏季 Summer | 636.59 ± 5.45a | 19.48 ± 2.67a | 0.50 ± 0.02a | 33.93 ± 4.57b | 1,284.62 ± 38.53b | 39.70 ± 7.00a | |
秋季 Autumn | 599.37 ± 2.92a | 11.20 ± 0.35b | 0.39 ± 0.02b | 53.64 ± 1.98ab | 1,519.62 ± 84.76b | 28.32 ± 0.96b | |
冬季 Winter | 617.74 ± 3.67a | 9.50 ± 0.32b | 0.31 ± 0.02c | 65.13 ± 1.99a | 2,026.05 ± 101.94a | 31.10 ± 1.13b | |
广西牡荆 Vitex kwangsiensia | 春季 Spring | 621.14 ± 37.60a | 20.91 ± 0.63a | 0.96 ± 0.03b | 29.88 ± 2.78a | 646.18 ± 25.58a | 21.84 ± 1.20a |
夏季 Summer | 604.61 ± 23.11a | 24.87 ± 0.13a | 1.28 ± 0.05a | 24.31 ± 0.99ab | 474.81 ± 34.03b | 19.48 ± 0.64a | |
秋季 Autumn | 568.00 ± 3.49a | 18.62 ± 0.15b | 1.05 ± 0.02b | 30.51 ± 0.34a | 541.27 ± 9.08ab | 17.75 ± 0.49a | |
冬季 Winter | 534.22 ± 39.44ab | 17.29 ± 0.47b | 1.04 ± 0.10b | 30.84 ± 1.72a | 517.75 ± 45.97ab | 16.80 ± 1.15a | |
苹婆 Sterculia monosperma | 春季 Spring | 612.08 ± 26.03a | 14.98 ± 0.73b | 0.97 ± 0.06b | 41.13 ± 3.21a | 635.44 ± 60.17a | 15.41 ± 0.25a |
夏季 Summer | 556.00 ± 15.59a | 19.44 ± 0.60a | 1.49 ± 0.05a | 28.63 ± 0.75b | 373.98 ± 16.39c | 13.05 ± 0.31a | |
秋季 Autumn | 562.55 ± 3.54a | 15.23 ± 0.48b | 1.22 ± 0.12ab | 37.01 ± 1.35a | 470.92 ± 44.59b | 12.84 ± 1.68a | |
冬季 Winter | 583.38 ± 13.02a | 15.61 ± 0.19b | 1.24 ± 0.23ab | 37.38 ± 0.60a | 525.13 ± 103.88b | 14.06 ± 2.84a | |
中国无忧花 Saraca dives | 春季 Spring | 589.41 ± 9.94a | 14.64 ± 0.69a | 1.39 ± 0.28a | 40.47 ± 2.52b | 405.08 ± 67.98a | 10.15 ± 2.07a |
夏季 Summer | 589.05 ± 7.66a | 15.95 ± 0.47a | 1.55 ± 0.20a | 37.04 ± 1.54b | 440.75 ± 58.67a | 12.07 ± 2.12a | |
秋季 Autumn | 566.74 ± 2.26a | 14.16 ± 0.58a | 1.19 ± 0.10ab | 40.14 ± 1.54b | 484.56 ± 41.07a | 12.09 ± 1.06a | |
冬季 Winter | 568.74 ± 17.89a | 11.01 ± 1.22b | 1.21 ± 0.04ab | 52.90 ± 5.95a | 470.40 ± 11.80a | 9.15 ± 1.15a | |
广西棋子豆 Archidendron guangxiensis | 春季 Spring | 704.78 ± 13.80a | 21.20 ± 0.48a | 0.42 ± 0.06b | 33.31 ± 1.38a | 1,723.53 ± 216.60a | 51.83 ± 6.35a |
夏季 Summer | 614.27 ± 47.98b | 24.84 ± 0.59a | 0.57 ± 0.02a | 24.79 ± 2.17ab | 1,074.73 ± 58.67b | 43.66 ± 1.75ab | |
秋季 Autumn | 637.85 ± 4.48ab | 19.08 ± 0.54a | 0.44 ± 0.03b | 33.48 ± 1.09a | 1,476.42 ± 108.41ab | 43.97 ± 1.86ab | |
冬季 Winter | 639.11 ± 6.37ab | 19.84 ± 1.08a | 0.49 ± 0.01ab | 32.42 ± 2.01a | 1,314.19 ± 19.96ab | 40.92 ± 3.12ab |
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