[1]胡飞,张晔华,方庆,等.浙江安息香及8种共存植物叶片碳、氮、磷、钾化学计量特征研究[J].江苏林业科技,2026,53(01):1-7.[doi:10.3969/j.issn.1001-7380.2026.01.001]
　Hu Fei,Zhang Yehua,Fang Qing,et al.Leaf carbon, nitrogen, phosphorus and potassium stoichiometric characteristics of Styrax zhejiangensis and eight coexisting plant species[J].Journal of Jiangsu Forestry Science &Technology,2026,53(01):1-7.[doi:10.3969/j.issn.1001-7380.2026.01.001]
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浙江安息香及8种共存植物叶片碳、氮、磷、钾化学计量特征研究

《江苏林业科技》[ISSN:1001-7380/CN:32-1236/S]

卷:
第53卷
期数:
2026年01期
页码:
1-7
栏目:
试验研究
出版日期:
2026-03-20

文章信息/Info

Title:
Leaf carbon, nitrogen, phosphorus and potassium stoichiometric characteristics of Styrax zhejiangensis and eight coexisting plant species
文章编号:
1001-7380（2026）01-0001-07
作者:
胡飞1; 张晔华2; 方庆2; 蔡文龙1; 林曦3 ; 傅国林2; 吴文骁1*
1.建德市林业局, 浙江 建德 311600；
2.建德市建德林场,浙江 建德 311600；
3.建德市下涯镇党群与便民服务中心，浙江 建德 311600
Author(s):
Hu Fei1; Zhang Yehua2;  Fang Qing2; Cai Wenlong1;  Lin Xi3;  Fu Guolin2;  Wu Wenxiao1*
1. Jiande Forestry Bureau, Jiande 311600, China;?div>2. Jiande Forest Farm, Jiande 311600, China;
3. Party-Mass and Convenience Service Center of Xiaya Town, Jiande City, Jiande 311600, China
关键词:
浙江安息香; 协同植物; 竞争植物; 叶片; 元素; 化学计量比
Keywords:
Styrax zhejiangensis; Synergistic plant; Competitive plant; Leaf; Element;  Stoichiometric ratio
分类号:
Q944.62；Q946.91
DOI:
10.3969/j.issn.1001-7380.2026.01.001
文献标志码:
A
摘要:
浙江安息香是浙江省特有的极小种群保护植物，研究该植物与共存植物叶片碳（C）、氮（N）、磷（P）、钾（K）含量及化学计量比，可为极小种群植物的就地保护与群落优化提供基础数据。采集浙江安息香、协同植物（石栎、毛花连蕊茶、红楠、山矾）和竞争植物（细叶香桂、杜英、厚皮香、微毛柃）等9种植物标准株叶片，测定 C，N， P，K 含量并计算化学计量比。结果表明：（1）浙江安息香及8种共存植物叶片C含量介于425.73—441.62 g/kg，种间无显著差异（P>0.05）。（2）浙江安息香叶片N（34.42 g/kg）显著高于除红楠外的7种共存植物（P<0.05），P（1.61g/kg）显著高于4种竞争植物和协同植物红楠（P<0.05），K（10.78g/kg）显著高其他植物（P<0.05）。（3）协同植物叶片平均 N（27.54 g/kg）、P（1.39 g/kg）显著高于竞争植物（23.83，1.06 g/kg），K在协同与竞争植物间无显著差异（P>0.05）。（4）浙江安息香叶片C/N（12.57）显著低于除红楠、杜英以外的6种植物，C/P（268.76）显著低于4种竞争植物和协同植物红楠（P<0.05），C/K（40.14）显著低于其他植物（P<0.05），N/P（21.38）显著低于杜英、厚皮香、红楠（P<0.05），N/K（3.19）显著低于石栎、红楠、山矾、细叶香桂、杜英（P<0.05），K/P（6.70）显著高于石栎、山矾、细叶香桂、杜英（P<0.05）。（5）竞争植物叶片平均C/P（426.52）显著高于协同植物（318.11）（P<0.05），其余化学计量比无显著差异（P>0.05）。（6）植物叶片N，P与C/N，C/P；K与C/K，N/K呈极显著负相关（P<0.01），叶片N与P，K之间的正相关性达显著水平（P<0.01）。总之，浙江安息香及8种共生植物生长主要受P的限制；协同植物因叶片 N，P 含量高，可通过凋落物分解释放养分，与浙江安息香形成养分互补协同；竞争植物因叶片 C/P 高，养分释放慢且争夺土壤有限P元素，对浙江安息香产生竞争抑制。建议在浙江安息香的保护管理中，适当施用磷肥，轻度疏伐竞争植物，并在林窗中适当补植协同植物。
Abstract:
Styrax zhejiangensis is a unique plant species with an extremely small population (PESP) endemic to Zhejiang Province. Studying the contents and stoichiometric ratios of carbon (C), nitrogen (N), phosphorus (P) and potassium (K) in leaves of this species and its coexisting plants can provide a scientific basis for in-situ conservation and community optimization of PESPs. Leaves were sampled from standard individuals of 9 plant species, including S. zhejiangensis, synergistic plants (Lithocarpus glaber, Camellia fraterna, Machilus thunbergii, Symplocos sumuntia), and competitive plants (Cinnamomum subavenium, Elaeocarpus decipiens, Ternstroemia gymnanthera, Eurya hebeclados). The contents of C, N, P, and K were determined, and their stoichiometric ratios were calculated. The results were as follows:(1) The leaf C content of S. zhejiangensis and the other 8 species ranged from 425.73 to 441.62 g/kg, with no significant interspecific difference (P>0.05).(2) The leaf N content of S. zhejiangensis (34.42 g/kg) was significantly higher than those of 7 other species except M. thunbergii (P<0.05); its leaf P content (1.61g/kg) was significantly higher than those of 4 competitive species and the synergistic species M. thunbergii (P<0.05); and its leaf K content (10.78 g/kg) was significantly higher than that of all other coexisting species (P<0.05).(3) The average leaf N (27.54 g/kg) and P (1.39 g/kg) contents of synergistic plants were significantly higher than those of competitive plants (23.83 and 1.06 g/kg, respectively) (P<0.05), while no significant difference in leaf K content was observed between the two groups (P>0.05).(4) The leaf C/N ratio of S. zhejiangensis (12.57) was significantly lower than those of 6 other species except M. thunbergii and E. decipiens; its leaf C/P ratio (268.76) was significantly lower than those of 4 competitive species and the synergistic species M. thunbergii (P<0.05); its leaf C/K ratio (40.14) was significantly lower than those of all other species (P<0.05); its leaf N/P ratio (21.38) was significantly lower than those of E. decipiens, T. gymnanthera and M. thunbergii (P<0.05); its leaf N/K ratio (3.19) was significantly lower than those of L. glaber, M. thunbergii, S. sumuntia, C. subavenium and E. decipiens (P<0.05); and its leaf K/P ratio (6.70) was significantly higher than those of L. glaber, S. sumuntia, C. subavenium and E. decipiens (P<0.05).(5) The average leaf C/P ratio of competitive plants (426.52) was significantly higher than those of synergistic plants (318.11) (P<0.05), while no significant differences were found in other stoichiometric ratios between the two groups (P>0.05).(6) Leaf N and P contents showed an extremely significant negative correlation with C/N and C/P ratios (P<0.01); leaf K content showed an extremely significant negative correlation with C/K and N/K ratios (P<0.01); and a significant positive correlation was observed between leaf N content and leaf P, K contents (P<0.01).In conclusion, S. zhejiangensis and its 8 coexisting plant species are primarily limited by phosphorus (P). Synergistic plants, with high leaf N and P contents, can release nutrients via litter decomposition, forming nutrient complementarity and synergy with S. zhejiangensis. In contrast, competitive plants have a high leaf C/P ratio, leading to slow nutrient release and competition for limited soil P, thus exerting competitive inhibition on S. zhejiangensis. It is suggested that in the conservation management of this species, appropriate application of phosphate fertilizer, light thinning of competitive plants and appropriate underplanting of synergistic plants in forest gaps should be made.

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备注/Memo

备注/Memo:
收稿日期：2025-11-10;修回日期：2025-12-15
基金项目：中央林业草原生态保护恢复专项（浙财资环[2023]74号；建林[2024]35号）；建德市建德林场项目（HZOFCG2025B-086）
作者简介：胡飞（1973- ），男，工程师,大学本科毕业。从事林业技术研究与推广工作。E-mail: 576058136@qq.com
*通信作者：吴文骁（1987- ），男，工程师,大学本科毕业。从事林业技术研究与推广工作。E-mail:214403245@qq.com
更新日期/Last Update: 2026-06-04