植物生态学报 ›› 2010, Vol. 34 ›› Issue (1): 58-63.DOI: 10.3773/j.issn.1005-264x.2010.01.009
所属专题: 生态化学计量
吴统贵1,2,*, 陈步峰1,**(), 肖以华1, 潘勇军1, 陈勇1, 萧江华2
收稿日期:
2008-09-25
接受日期:
2009-04-17
出版日期:
2010-09-25
发布日期:
2010-01-01
通讯作者:
陈步峰
作者简介:
** E-mail: zsjcsdwcb@126.com
WU Tong-Gui1,2,*, CHEN Bu-Feng1,**(), XIAO Yi-Hua1, PAN Yong-Jun1, CHEN Yong1, XIAO Jiang-Hua2
Received:
2008-09-25
Accepted:
2009-04-17
Online:
2010-09-25
Published:
2010-01-01
Contact:
CHEN Bu-Feng
摘要:
以珠江三角洲3种典型森林类型(常绿阔叶林、针阔混交林和针叶林)为研究对象, 分析了各类型优势乔木叶片C、N、P化学计量特征。结果显示, 所有研究个体叶片C、N、P含量范围分别为434-537、6.8-23.0和0.56-2.10 mg·g-1, C:N、C:P和N:P的分布区间分别为 21.22-70.74、227.14-844.64和5.26-20.91, 且N与P之间、C:N与C:P之间具有较好的协同性。3种森林类型中, 针叶林乔木叶片C含量最大, 加权平均值为(517.85 ± 35.96) mg·g-1, 其次是针阔混交林((509.47 ± 19.38) mg·g-1), 常绿阔叶林最小((481.59 ± 18.35) mg·g-1); 针叶林乔木叶片N含量((12.20 ± 5.65) mg·g-1)最大, 其次是常绿阔叶林((11.50 ± 4.24) mg·g-1), 针阔混交林((10.51 ± 5.22) mg·g-1)最小; 各森林类型乔木叶片P含量大小顺序与C含量完全相反, 为常绿阔叶林((1.31 ± 0.48) mg·g-1)>针阔混交林((0.96 ± 0.61) mg·g-1)>针叶林((0.77 ± 0.40) mg·g-1)。针阔混交林乔木叶片C:N (51.35 ± 13.65)最大, 针叶林(47.40 ± 15.85)其次, 常绿阔叶林(45.59 ± 14.70)最小; 各森林类型乔木叶片C:P和N:P大小顺序相同, 均为针叶林(727.47 ± 231.52、15.71 ± 3.76)>针阔混交林(553.01 ± 152.32、10.93 ± 1.89)>常绿阔叶林(412.19 ± 200.91、9.46 ± 4.28)。同时根据乔木叶片N:P还发现, 少数阔叶树种和常绿阔叶林生产力受到N素限制。
吴统贵, 陈步峰, 肖以华, 潘勇军, 陈勇, 萧江华. 珠江三角洲3种典型森林类型乔木叶片生态化学计量学. 植物生态学报, 2010, 34(1): 58-63. DOI: 10.3773/j.issn.1005-264x.2010.01.009
WU Tong-Gui, CHEN Bu-Feng, XIAO Yi-Hua, PAN Yong-Jun, CHEN Yong, XIAO Jiang-Hua. Leaf stoichiometry of trees in three forest types in Pearl River Delta, South China. Chinese Journal of Plant Ecology, 2010, 34(1): 58-63. DOI: 10.3773/j.issn.1005-264x.2010.01.009
森林类型 Types | 物种 Species | C (mg·g-1) | N (mg·g-1) | P (mg·g-1) | C:N | C:P | N:P |
---|---|---|---|---|---|---|---|
常绿阔叶林 Evergreen broad-leaved forest | 米老排 Mytilaria laosensis | 484 | 14.0 | 1.80 | 34.57 | 268.89 | 7.78 |
乐昌含笑 Michelia chapensis | 480 | 12.0 | 1.20 | 40.00 | 400.00 | 10.00 | |
红椎 Castanopsis hystrix | 487 | 9.6 | 0.86 | 50.73 | 566.28 | 11.16 | |
火力楠 Michelia macclurel | 481 | 6.8 | 0.98 | 70.74 | 490.82 | 6.94 | |
黧蒴锥 Castanopsis fissa | 488 | 10.0 | 1.90 | 48.80 | 256.84 | 5.26 | |
海南红豆 Ormosia pinnata | 494 | 21.0 | 1.50 | 23.52 | 329.33 | 14.00 | |
红胶木 Tristania conferta | 476 | 14.0 | 0.71 | 34.00 | 670.42 | 19.72 | |
尖叶杜英 Elaeocarpus apiculatus | 434 | 11.0 | 1.40 | 39.45 | 310.00 | 7.86 | |
荷木 Schima superb | 473 | 7.9 | 0.56 | 59.87 | 844.64 | 14.11 | |
枫香 Liquidambar formosana | 452 | 7.3 | 0.68 | 61.92 | 664.71 | 10.74 | |
群落加权平均值 Weighted average | 481.59 | 11.5 | 1.31 | 45.59 | 412.19 | 9.46 | |
标准差 SD | 18.35 | 4.24 | 0.48 | 14.70 | 200.91 | 4.28 | |
针阔混交林 Coniferous and broad-leaved mixed forest | 湿地松 Pinus elliottii | 520 | 9.0 | 0.87 | 57.78 | 597.7 | 10.34 |
红胶木 Tristania conferta | 485 | 13.0 | 1.00 | 37.31 | 485.00 | 13.00 | |
楝叶吴茱萸 Evodia glabrifolia | 474 | 19.0 | 2.00 | 24.95 | 237.00 | 9.50 | |
黧蒴锥 Castanopsis fissa | 475 | 13.0 | 0.98 | 36.54 | 484.69 | 13.27 | |
乐昌含笑 Michelia chapensis | 477 | 22.0 | 2.10 | 21.68 | 227.14 | 10.48 | |
群落加权平均值 Weighted average | 509.47 | 10.51 | 0.96 | 51.35 | 553.01 | 10.93 | |
标准差 SD | 19.38 | 5.22 | 0.61 | 13.65 | 152.32 | 1.89 | |
针叶林 Coniferous forest | 马尾松 Pinus massoniana | 537 | 9.6 | 0.64 | 55.94 | 839.06 | 15.00 |
黄牛木 Cratoxylum ligustrinum | 454 | 16.0 | 0.96 | 28.38 | 472.92 | 16.67 | |
银姬小蜡 Ligustrum sinense | 488 | 23.0 | 1.10 | 21.22 | 443.64 | 20.91 | |
潺槁木姜子 Litsea glutinosa | 470 | 19.0 | 1.60 | 24.74 | 293.75 | 11.88 | |
群落加权平均值 Weighted average | 517.85 | 12.20 | 0.77 | 47.40 | 727.47 | 15.71 | |
标准差 SD | 35.96 | 5.65 | 0.40 | 15.85 | 231.53 | 3.76 |
表1 乔木叶片中C、N、P生态化学计量指标
Table 1 C, N, P stoichiometry of tree leaf
森林类型 Types | 物种 Species | C (mg·g-1) | N (mg·g-1) | P (mg·g-1) | C:N | C:P | N:P |
---|---|---|---|---|---|---|---|
常绿阔叶林 Evergreen broad-leaved forest | 米老排 Mytilaria laosensis | 484 | 14.0 | 1.80 | 34.57 | 268.89 | 7.78 |
乐昌含笑 Michelia chapensis | 480 | 12.0 | 1.20 | 40.00 | 400.00 | 10.00 | |
红椎 Castanopsis hystrix | 487 | 9.6 | 0.86 | 50.73 | 566.28 | 11.16 | |
火力楠 Michelia macclurel | 481 | 6.8 | 0.98 | 70.74 | 490.82 | 6.94 | |
黧蒴锥 Castanopsis fissa | 488 | 10.0 | 1.90 | 48.80 | 256.84 | 5.26 | |
海南红豆 Ormosia pinnata | 494 | 21.0 | 1.50 | 23.52 | 329.33 | 14.00 | |
红胶木 Tristania conferta | 476 | 14.0 | 0.71 | 34.00 | 670.42 | 19.72 | |
尖叶杜英 Elaeocarpus apiculatus | 434 | 11.0 | 1.40 | 39.45 | 310.00 | 7.86 | |
荷木 Schima superb | 473 | 7.9 | 0.56 | 59.87 | 844.64 | 14.11 | |
枫香 Liquidambar formosana | 452 | 7.3 | 0.68 | 61.92 | 664.71 | 10.74 | |
群落加权平均值 Weighted average | 481.59 | 11.5 | 1.31 | 45.59 | 412.19 | 9.46 | |
标准差 SD | 18.35 | 4.24 | 0.48 | 14.70 | 200.91 | 4.28 | |
针阔混交林 Coniferous and broad-leaved mixed forest | 湿地松 Pinus elliottii | 520 | 9.0 | 0.87 | 57.78 | 597.7 | 10.34 |
红胶木 Tristania conferta | 485 | 13.0 | 1.00 | 37.31 | 485.00 | 13.00 | |
楝叶吴茱萸 Evodia glabrifolia | 474 | 19.0 | 2.00 | 24.95 | 237.00 | 9.50 | |
黧蒴锥 Castanopsis fissa | 475 | 13.0 | 0.98 | 36.54 | 484.69 | 13.27 | |
乐昌含笑 Michelia chapensis | 477 | 22.0 | 2.10 | 21.68 | 227.14 | 10.48 | |
群落加权平均值 Weighted average | 509.47 | 10.51 | 0.96 | 51.35 | 553.01 | 10.93 | |
标准差 SD | 19.38 | 5.22 | 0.61 | 13.65 | 152.32 | 1.89 | |
针叶林 Coniferous forest | 马尾松 Pinus massoniana | 537 | 9.6 | 0.64 | 55.94 | 839.06 | 15.00 |
黄牛木 Cratoxylum ligustrinum | 454 | 16.0 | 0.96 | 28.38 | 472.92 | 16.67 | |
银姬小蜡 Ligustrum sinense | 488 | 23.0 | 1.10 | 21.22 | 443.64 | 20.91 | |
潺槁木姜子 Litsea glutinosa | 470 | 19.0 | 1.60 | 24.74 | 293.75 | 11.88 | |
群落加权平均值 Weighted average | 517.85 | 12.20 | 0.77 | 47.40 | 727.47 | 15.71 | |
标准差 SD | 35.96 | 5.65 | 0.40 | 15.85 | 231.53 | 3.76 |
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