林业科学 ›› 2022, Vol. 58 ›› Issue (1): 12-21.doi: 10.11707/j.1001-7488.20220102
武盼盼1,曾利剑2,雷平2,胡丹丹1,2,李锦隆1,王满堂4,钟全林1,3,*
收稿日期:
2020-08-12
出版日期:
2022-01-25
发布日期:
2022-03-08
通讯作者:
钟全林
基金资助:
Panpan Wu1,Lijian Zeng2,Ping Lei2,Dandan Hu1,2,Jinlong Li1,Mantang Wang4,Quanlin Zhong1,3,*
Received:
2020-08-12
Online:
2022-01-25
Published:
2022-03-08
Contact:
Quanlin Zhong
摘要:
目的: 分析江西武夷山南方铁杉林主要树种叶片养分含量,阐明不同生活型(落叶树种和常绿树种)树种新鲜叶和凋落叶养分化学计量特征与养分再吸收效率,为揭示南方铁杉林主要树种叶片养分含量及再吸收效率对植物生活型的响应机制提供理论依据。方法: 采集南方铁杉天然林内主要树种的新鲜叶和凋落叶,测定叶片碳(C)、氮(N)、磷(P)含量,计算其化学计量比和养分再吸收效率,采用标准化主轴回归估计方法对南方铁杉林主要树种新鲜叶与凋落叶中N、P含量的异速生长关系进行研究,分析生活型对叶片N、P含量之间关系的影响。结果: 1) 南方铁杉天然混交林中,落叶和常绿两生活型树种间的新鲜叶C含量无显著差异,但落叶树种N和P含量均显著高于常绿树种(P < 0.05); 但两生活型树种间的凋落叶C、N、P含量均无显著差异。2)新鲜叶C ∶N和C ∶P均表现为落叶树种显著低于常绿树种(P < 0.05),但N ∶P在两生活型树种间差异不明显; 凋落叶C ∶N、N ∶P和C ∶P均显著大于新鲜叶,但其在两生活型树种间差异不明显。3)常绿树种新鲜叶N与P含量间存在显著正相关关系; 常绿树种与落叶树种凋落叶N与P含量显著正相关(P < 0.05),但斜率差异不显著(P = 0.60),斜率为0.73; 凋落叶N含量与新鲜叶N含量显著正相关(P < 0.05),但凋落叶P含量与新鲜叶P含量无显著相关性。4)落叶树种与常绿树种间叶片N、P再吸收效率差异不明显,二者均有较高的P再吸收效率。结论: 落叶树种新鲜叶N、P含量显著高于常绿树种,两生活型树种间的N、P再吸收效率无显著差异。生活型对凋落叶N和P含量相关关系斜率未产生影响; 不同生活型树种叶片养分含量存在显著差异; 不同生活型树种具有不同的养分获取策略。
中图分类号:
武盼盼,曾利剑,雷平,胡丹丹,李锦隆,王满堂,钟全林. 江西武夷山南方铁杉林主要树种叶片养分含量及再吸收效率[J]. 林业科学, 2022, 58(1): 12-21.
Panpan Wu,Lijian Zeng,Ping Lei,Dandan Hu,Jinlong Li,Mantang Wang,Quanlin Zhong. Content of Leaf Nutrients and Resorption Efficiency of Major Tree Species in Tsuga chinensis Forest in Wuyi Mountain, Jiangxi Province[J]. Scientia Silvae Sinicae, 2022, 58(1): 12-21.
表1
武夷山南方铁杉林主要树种基本特征"
生活型 Life form | 树种 Tree species | 密度 Density/hm-2 | 平均胸径(地径) Mean DBH (ground diameter)/cm | 平均树高 Mean tree height/m |
落叶Deciduous | 天目紫茎Stewartia gemmata | 175 | 12.13±9.29 | 8.45±4.46 |
贵定桤叶树Clethra cavaleriei | 275 | 5.39±2.85 | 4.96±1.83 | |
鸡爪槭Acer palmatum | 67 | 21.11±7.98 | 11.12±4.18 | |
白蜡树Fraxinus chinensis | 42 | 8.75±6.51 | 6.99±3.92 | |
豆梨Pyrus calleryana | 58 | 9.13±4.56 | 5.35±2.43 | |
青榨槭Acer davidii | 33 | 11.44±9.98 | 3.96±0.92 | |
白檀Symplocos paniculata | 308 | 7.81±4.53 | 5.88±2.29 | |
常绿Evergreen | 青冈Cyclobalanopsis glauca | 200 | 19.42±14.24 | 8.25±4.03 |
岩柃Eurya saxicola | 342 | 4.79±2.50 | 4.42±1.43 | |
闵皖八角Illicium minwanense | 533 | 6.86±4.76 | 5.56±2.80 | |
多脉青冈Cyclobalanopsis multinervis | 183 | 19.06±13.20 | 9.61±4.86 | |
云锦杜鹃Rhododendron fortunei | 83 | 11.70±6.26 | 6.95±2.54 | |
南方铁杉Tsuga chinensis | 283 | 32.58±21.40 | 16.52±8.46 | |
鹿角杜鹃Rhododendron latoucheae | 167 | 5.53±3.74 | 4.90±1.72 |
表2
武夷山南方铁杉林主要树种叶片养分含量①"
项目Item | 新鲜叶Fresh leaves | 凋落叶Litter leaves | ||||||
C | N | P | C | N | P | |||
落叶树种 Deciduous tree species | 天目紫茎Stewartia gemmata | 457.25±6.23 | 17.15±1.06 | 0.87±0.05 | 444.00±2.17 | 8.70±0.45 | 0.34±0.02 | |
贵定桤叶树Clethra cavaleriei | 463.15±8.09 | 19.58±2.35 | 0.97±0.08 | 465.18±1.64 | 11.68±0.36 | 0.28±0.04 | ||
鸡爪槭Acer palmatum | 471.18±11.48 | 19.10±1.44 | 0.99±0.13 | 465.32±5.30 | 10.03±0.60 | 0.28±0.03 | ||
白蜡树Fraxinus chinensis | 480.71±3.53 | 21.10±0.77 | 1.24±0.05 | 484.22±1.80 | 20.46±0.03 | 1.22±0.09 | ||
豆梨Pyrus calleryana | 477.75±4.50 | 17.32±2.09 | 0.93±0.13 | 470.05±4.44 | 10.44±1.25 | 0.52±0.07 | ||
青榨槭Acer davidii | 470.70±4.46 | 18.01±2.13 | 1.23±0.09 | 465.38±0.79 | 5.96±0.33 | 0.20±0.04 | ||
白檀Symplocos paniculata | 472.62±6.09 | 21.29±3.23 | 0.98±0.08 | 475.26±0.80 | 17.46±0.40 | 0.72±0.1 | ||
常绿树种 Evergreen tree species | 青冈Cyclobalanopsis glauca | 484.83±9.99 | 17.04±2.93 | 0.73±0.11 | 494.61±10.3 | 15.57±0.18 | 0.64±0.04 | |
岩柃Eurya saxicola | 459.55±4.26 | 12.66±0.93 | 0.53±0.05 | 446.39±0.24 | 5.83±0.07 | 0.21±0.09 | ||
闵皖八角Illicium minwanense | 488.30±10.96 | 17.81±1.26 | 1.07±0.11 | 503.26±5.87 | 13.97±2.42 | 0.69±0.32 | ||
多脉青冈Cyclobalanopsis multinervis | 501.92±6.34 | 21.32±2.34 | 1.09±0.18 | 500.81±1.8 | 15.65±2.48 | 0.49±0.06 | ||
云锦杜鹃Rhododendron fortunei | 482.71±4.32 | 13.02±1.67 | 0.73±0.08 | 472.84±7.91 | 11.08±1.13 | 0.67±0.05 | ||
南方铁杉Tsuga chinensis | 488.59±7.19 | 13.34±1.27 | 0.64±0.06 | 493.16±0.85 | 12.23±0.73 | 0.58±0.02 | ||
鹿角杜鹃Rhododendron latoucheae | 470.90±4.48 | 10.04±1.18 | 0.52±0.09 | 475.08±0.10 | 4.88±0.25 | 0.15±0.02 | ||
落叶树种均值 Mean value of deciduous tree specie | 470.48±8.08a | 19.08±1.69a | 1.03±0.15a | 467.06±12.33a | 12.11±5.08a | 0.51±0.36a | ||
常绿树种均值 Mean value of evergreen tree species | 482.40±12.62a | 15.03±3.56b | 0.75±0.22b | 483.73±18.78a | 11.31±4.08a | 0.51±0.22a | ||
总均值 Mean value of all tree specie | 476.44±12.41A | 17.05±3.54A | 0.89±0.24A | 475.40±18.30B | 11.71±4.59B | 0.49±0.30A |
表3
武夷山南方铁杉林主要树种养分化学计量比"
项目Item | 新鲜叶Fresh leaves | 凋落叶Litter leaves | ||||||
C∶N | C∶P | N∶P | C∶N | C∶P | N∶P | |||
落叶树种 Deciduous tree species | 天目紫茎Stewartia gemmata | 26.80±2.08 | 527.93±40.70 | 19.72±0.76 | 51.16±2.47 | 1 297.41±71.16 | 25.35±0.43 | |
贵定桤叶树Clethra cavaleriei | 23.98±2.67 | 478.75±32.29 | 20.23±2.71 | 39.85±1.05 | 1 683.51±246.52 | 42.24±5.98 | ||
鸡爪槭Acer palmatum | 24.83±2.33 | 484.27±81.21 | 19.43±1.90 | 46.57±2.97 | 1 704.75±198.52 | 37.02±6.53 | ||
白蜡树Fraxinus chinensis | 22.81±0.72 | 388.39±18.03 | 17.06±1.16 | 23.66±0.12 | 399.72±30.04 | 16.90±1.32 | ||
豆梨Pyrus calleryana | 27.99±3.32 | 525.06±75.51 | 18.82±1.99 | 45.59±4.95 | 916.54±119.46 | 20.07±0.83 | ||
青榨槭Acer davidii | 26.46±2.75 | 384.16±23.99 | 14.62±1.18 | 78.30±4.17 | 2 361.74±427.33 | 30.38±6.41 | ||
白檀Symplocos paniculata | 22.67±3.12 | 486.12±42.30 | 21.90±3.77 | 27.24±0.66 | 674.71±88.65 | 24.75±3.06 | ||
常绿树种 Evergreen tree species | 青冈Cyclobalanopsis glauca | 29.39±5.44 | 674.24±96.70 | 23.33±3.50 | 31.78±0.89 | 773.21±31.62 | 24.37±1.75 | |
岩柃Eurya saxicola | 36.51±2.92 | 875.65±83.08 | 24.21±3.42 | 76.61±0.87 | 2 750.02±1561.8 | 36.13±20.96 | ||
闵皖八角Illicium minwanense | 27.57±2.20 | 459.38±43.40 | 16.82±2.52 | 36.98±5.47 | 865.24±303.02 | 24.38±10.26 | ||
多脉青冈Cyclobalanopsis multinervis | 23.82±2.53 | 472.85±76.54 | 20.36±5.41 | 32.86±5.37 | 1 040.12±124.57 | 32.42±6.45 | ||
云锦杜鹃Rhododendron fortunei | 37.70±4.91 | 685.33±80.19 | 18.63±4.32 | 43.24±5.45 | 722.92±16.48 | 16.94±2.11 | ||
南方铁杉Tsuga chinensis | 37.01±3.91 | 768.59±72.38 | 20.87±1.79 | 40.46±2.39 | 848.77±27.68 | 21.08±1.77 | ||
鹿角杜鹃Rhododendron latoucheae | 47.46±4.63 | 939.25±174.09 | 20.20±5.23 | 97.65±5.10 | 3 217.18±334.94 | 32.87±2.01 | ||
落叶树种均值 Mean value of deciduous tree species | 25.08±1.91b | 467.81±54.67b | 18.82±2.18a | 44.63±16.67a | 1 291.20±630.89a | 28.10±8.40a | ||
常绿树种均值 Mean value of evergreen tree species | 34.21±7.33a | 696.47±195.09a | 20.63±4.51a | 51.37±23.60a | 1 440.05±1 212.1a | 27.47±11.74a | ||
总均值 Mean value of all tree species | 29.64±7.04B | 582.14±185.61B | 19.73±3.94B | 48.00±20.71A | 1 361.90±967.31A | 27.80±10.60A |
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