FOREST RESOURCES WANAGEMENT ›› 2017, Vol. 0 ›› Issue (5): 66-73.doi: 10.13466/j.cnki.lyzygl.2017.05.012
• Scientific Research • Previous Articles Next Articles
QIN Shiyi1(), YU Yanghua2(), XING Rongrong3, WANG Lu1
Received:
2017-05-31
Revised:
2017-08-15
Online:
2017-10-28
Published:
2020-09-24
Contact:
YU Yanghua
E-mail:15885501304@163.com;yuyanghua2003@163.com
CLC Number:
QIN Shiyi, YU Yanghua, XING Rongrong, WANG Lu. Stoichiometric Characteristics of Litter and Soils in Water Conservation Forests of Karst Plateau Mountainous Region[J]. FOREST RESOURCES WANAGEMENT, 2017, 0(5): 66-73.
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URL: http://www.lyzygl.com.cn/EN/10.13466/j.cnki.lyzygl.2017.05.012
Tab.1
The basic characteristics of the forest communities
群落 | 母岩 | 土壤类型 | 坡度/(°) | 坡向 | 坡位 | 密度/ (株/hm2) | 乔木层 | 灌木层 | |||
---|---|---|---|---|---|---|---|---|---|---|---|
平均树高 /m | 平均胸径 /cm | 平均树高 /m | 地径 /cm | ||||||||
1号 | 砂页岩 | 黄壤 | 28 | 西南 | 中 | 8425 | 12.43 | 14.45 | 1.46 | 1.96 | |
2号 | 砂页岩 | 黄壤 | 33 | 南 | 中 | 7725 | — | — | 1.03 | 1.56 | |
3号 | 砂页岩 | 黄壤 | 20 | 东南 | 中 | 6325 | 16.11 | 12.92 | 1.67 | 1.64 | |
4号 | 石灰岩 | 石灰土 | 50 | 西南 | 中 | 7325 | 5.85 | 6.58 | 1.69 | 1.67 | |
5号 | 砂页岩 | 黄壤 | 33 | 东北 | 上 | 7850 | 12.12 | 13.86 | 1.09 | 1.02 |
Tab.2
OC,TN and TP contents in litter and soil in forest communities
群落 | OC | TN | TP | |||||
---|---|---|---|---|---|---|---|---|
土壤 | 凋落物 | 土壤 | 凋落物 | 土壤 | 凋落物 | |||
1号 | 12.40±0.34d | 398.67±1.59bc | 1.03±0.070d | 18.02±1.42a | 0.16±0.0086d | 1.60±0.50a | ||
2号 | 20.12±0.34c | 389.61±7.16c | 1.26±0.032c | 13.49±0.41c | 0.63±0.095a | 2.05±0.52a | ||
3号 | 9.24±0.18e | 407.86±8.99b | 0.70±0.029e | 16.83±0.28ab | 0.16±0.0069d | 2.25±0.75a | ||
4号 | 55.74±2.68a | 408.87±3.95b | 3.20±0.075a | 14.88±1.28bc | 0.43±0.0023b | 1.90±0.44a | ||
5号 | 27.61±0.44b | 430.45±6.24a | 1.63±0.096b | 17.13±2.13ab | 0.29±0.012c | 2.50±0.76a |
Tab.3
Ecological stoichiometric characteristics in litter and soil in forest communities
群落 | C:N | C:P | N:P | |||||
---|---|---|---|---|---|---|---|---|
土壤 | 凋落物 | 土壤 | 凋落物 | 土壤 | 凋落物 | |||
1号 | 12.09±1.02b | 22.22±1.76c | 77.67±4.78c | 268.98±99.34a | 6.43±0.24b | 12.01±3.89a | ||
2号 | 15.98±0.17a | 28.91±1.15a | 32.44±5.80e | 198.39±51.89a | 2.03±0.39e | 6.82±1.53b | ||
3号 | 13.14±0.32b | 24.24±0.86bc | 56.77±1.69d | 194.53±57.54a | 4.32±0.17d | 7.98±2.16ab | ||
4号 | 17.44±0.87a | 27.62±2.43ab | 129.45±6.65a | 219.25±38.26a | 7.42±0.21a | 7.92±0.96ab | ||
5号 | 16.98±1.03a | 25.36±2.85abc | 95.65±2.76b | 183.19±54.19a | 5.65±0.33c | 7.16±1.61ab |
Tab.4
Pearson correlations between the contents of OC,TN and TP and eco-stoichiometric characteristics in litter and soil
项目 | 土壤 | 凋落物 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OC | TN | TP | C:N | C:P | N:P | OC | TN | TP | C:N | C:P | N:P | ||
土壤 | |||||||||||||
OC | 1 | ||||||||||||
TN | 0.993** | 1 | |||||||||||
TP | 0.415 | 0.381 | 1 | ||||||||||
C:N | 0.773** | 0.706** | 0.634* | 1 | |||||||||
C:P | 0.793** | 0.808** | -0.200 | 0.438 | 1 | ||||||||
N:P | 0.532* | 0.581* | -0.490 | 0.041 | 0.913** | 1 | |||||||
凋落物 | |||||||||||||
OC | 0.243 | 0.217 | -0.327 | 0.330 | 0.523* | 0.427 | 1 | ||||||
TN | -0.344 | -0.310 | -0.783** | -0.502 | 0.195 | 0.443 | 0.347 | 1 | |||||
TP | -0.018 | -0.044 | 0.006 | 0.197 | -0.017 | -0.125 | 0.243 | 0.300 | 1 | ||||
C:N | 0.445 | 0.402 | 0.776** | 0.645** | -0.065 | -0.361 | -0.095 | -0.961** | -0.238 | 1 | |||
C:P | -0.048 | -0.007 | -0.139 | -0.313 | 0.044 | 0.215 | -0.110 | -0.120 | -0.914** | 0.079 | 1 | ||
N:P | -0.224 | -0.167 | -0.407 | -0.552* | 0.045 | 0.325 | -0.106 | 0.228 | -0.792** | -0.291 | 0.929** | 1 |
Tab.5
C,N,P contents in litter and soil in Guizhou karst forest communities in comparison with other regions
对象 | 研究区域 | OC/(mg/g) | TN/(mg/g) | TP/(mg/g) | C:N | C:P | N:P | 文献 |
---|---|---|---|---|---|---|---|---|
土壤 | 贵州喀斯特0~20cm | 25.02 | 1.56 | 0.33 | 15.13 | 78.40 | 5.17 | 本研究 |
广西喀斯特0~20cm | 41.77 | 5.17 | 0.28 | 8.5 | 209.20 | 23.80 | [19] | |
赣中0~10cm | 16.27 | 0.74 | 0.11 | 21.99 | 147.91 | 6.73 | [16] | |
全国0~10cm | 24.59 | 1.88 | 0.77 | 14.40 | 136.00 | 9.30 | [17] | |
全球森林0~10cm | — | — | — | 12.43 | 82.10 | 6.60 | [21] | |
凋落物 | 贵州喀斯特地区 | 407.09 | 16.07 | 2.06 | 25.67 | 212.87 | 8.38 | 本研究 |
广东鼎湖山 | 522.10 | 14.22 | 0.43 | 37.30 | 1305.00 | 35.00 | [24] | |
祁连山地区 | 379.90 | 12.12 | 0.81 | 33.25 | 484.10 | 13.30 | [25] | |
广西喀斯特地区 | 396.15 | 12.73 | 0.90 | 31.12 | 440.17 | 14.11 | [10] | |
全球森林 | — | — | — | 56.75 | 1219.27 | 20.58 | [27] |
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