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[1]江佳 盛笑羚 邵炯妮 林 颖 何沁如 韩文娟**.马尾松和木荷幼苗主要功能性状对氮磷和石灰添加的响应*[J].应用与环境生物学报,2020,26(02):1-14.[doi:10.19675/j.cnki.1006-687x.2019.05048]
 JIANG Jia,SHENG Xiaoling,SHAO Jiongni,et al.Responses of major functional traits of Pinus massoniana and Schima superba seedlings to nitrogen, phosphorus and lime addition*[J].Chinese Journal of Applied & Environmental Biology,2020,26(02):1-14.[doi:10.19675/j.cnki.1006-687x.2019.05048]
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马尾松和木荷幼苗主要功能性状对氮磷和石灰添加的响应*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
26卷
期数:
2020年02期
页码:
1-14
栏目:
研究论文
出版日期:
2020-03-20

文章信息/Info

Title:
Responses of major functional traits of Pinus massoniana and Schima superba seedlings to nitrogen, phosphorus and lime addition*
作者:
江佳 盛笑羚 邵炯妮 林 颖 何沁如 韩文娟**
浙江师范大学化学与生命科学学院 金华 3 21000
Author(s):
JIANG Jia1;? SHENG Xiaoling2;? SHAO Jiongni 3;? LIN Ying 4;? HE Qinru 5;? HAN Wenjuan 1**
College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321000, China
关键词:
氮添加;?磷添加;?碳酸钙添加;?叶片功能性状;?根系功能性状
Keywords:
nitrogen addition;? phosphorus addition;? liming addition;? leaf functional traits;? root function al traits
DOI:
10.19675/j.cnki.1006-687x.2019.05048
摘要:
植物功能性状能够反映植物个体对环境的响应和适应。为探究氮沉降对亚热带优势乔木树种功能性状的影响并寻求缓解过量氮沉降影响的措施。选择马尾松(Pinus massoniana)和木荷(Schima superba)幼苗为研究对象,设置了6个实验处理:对照、加氮(20 g N m -2 a-1)、加碳酸钙(100 g m-2 a-1 CaCO 3)、加氮和加碳酸钙、加磷(10 g P m-2 a-1)、加氮和加磷。结果显示:(1)氮添加显着增加木荷的根茎叶生物量,分别增加了319.83%、67.79%和 66.14%;但对马尾松生物量的影响不显着。(2)氮添加显着增加木荷的总叶面积(增加了96.13%),但显着降低木荷的根系分叉数(降低了34.26%);马尾松叶片和根系功能性状对氮添加的响应不显着。(3)高氮添加背景下,碳酸钙添加显着降低了木荷的根叶生物量、总叶面积和比根长,分别降低了63.39%、 30.56%、 44.67%和 80.81%;也显着降低了马尾松的比根长、比根面积和根分叉数,分别降低了54.11%、43.12%和59.39%;但对马尾松生物量无显着影响。(4)同时添加氮磷显着增加了木荷的根茎叶生物量,分别增加了96.41%、14.30%和34.65%;但对马尾松的生物量及根系功能性状无显着影响。本研究表明,木荷对氮沉降的敏感程度较马尾松高,氮沉降可能通过改变物种的叶片和根系功能性状影响木荷的生长。高氮沉降背景下,碳酸钙添加可能抑制木荷和马尾松幼苗的生长,但磷添加可进一步促进木荷的生长。
Abstract:
Plant functional traits can reflect the response and adaptation of individual plants to the environment. This study aimed to investigate the effect of nitrogen (N) deposition on the functional traits of dominant tree species in the subtropical zone and how to mitigate the effect of N deposition. In this study, Pinus massoniana and Schima superba were selected as research object, six experiment treatments were set up: control, N addition ( 20 g N m-2 a-1) , liming (100 g CaCO3 m -2 a-1), phosphorus addition (P, 10 g P m -2 a -1), N and lime addition, N and P addition. Results showed (1) N deposition significantly increased the biomass of root, stem, and leaf of S. superba by 319.83%, 67.79%, and 66.14%, respectively, but did not affect the biomass of P. massoniana. (2) N deposition significantly increased total leaf area of S. superba by 96.13% , but significantly decreased root forks of S. superba by 34.26%. The functional traits of leaves and roots of P. massoniana did not respond to N deposition. (3) Under the background of high N deposition, liming significantly reduced the biomass of root, stem, and leaf , leaf number, total leaf area and specific root length of S. superba by 63.39%, 30.56%, 35.87%, 44.67%, and 80.81%, respectively, also significantly decreased the specific root length, specific root area, and root forks of P. massoniana by 54.11%, 43.12%, and 59.39% , respectively, but did not affect the biomass of P. massoniana. (4) Addition of N and P significantly increased the biomass of root, stem, and leaf of S. superba by 96.41%, 14.30%, and 34.65%, respectively, but there was no significant effect on the biomass and functional traits of P. massoniana. According to these results, we can conclude that the sensitivity of S. superba to N deposition is higher than that of P. massoniana. N deposition may affect the growth of S. superba through changing the functional traits of leaves and root . With the increase of nitrogen deposition, liming may inhibit the growth of S. superba and P. massoniana, but P addition could enhance the growth of S. superba.

相似文献/References:

[1]方熊,刘菊秀,张德强,等.降水变化、氮添加对鼎湖山主要森林土壤有机碳矿化和土壤微生物碳的影响[J].应用与环境生物学报,2012,18(04):531.[doi:10.3724/SP.J.1145.2012.00531]
 FANG Xiong,LIU Juxiu,ZHANG Deqiang,et al.Effects of Precipitation Change and Nitrogen Addition on Organic Carbon Mineralization and Soil Microbial Carbon of the Forest Soils in Dinghushan, Southeastern China[J].Chinese Journal of Applied & Environmental Biology,2012,18(02):531.[doi:10.3724/SP.J.1145.2012.00531]

备注/Memo

备注/Memo:
收稿日期 Received: 2019-05-29 接受日期 Accepted: 2019-07-22
*浙江省自然科学基金(LQ18C030001)资助
**通讯作者Corresponding author (E-mail: wenjuan_han@zjnu.edu.cn)
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更新日期/Last Update: 2019-07-30