Stoichiometric characteristics of C, N, P of Taxus chinensis var. mairei plantation needles

doi:10.12302/j.issn.1000-2006.202103051

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2021, Vol. 45 ›› Issue (5): 53-61.doi: 10.12302/j.issn.1000-2006.202103051

Previous Articles Next Articles

Stoichiometric characteristics of C, N, P of Taxus chinensis var. mairei plantation needles

CHEN Li¹(), LIU Chenggong², QIAN Yingying¹, TANG Xiaodie¹, WANG Shengshu¹, LI Zhidong¹, LI Yan¹, CUI Jun¹

1. College of Life and Environmental Sciences, Huangshan University, Huangshan 245041, China
2. Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China

Received:2021-03-30 Accepted:2021-06-11 Online:2021-09-30 Published:2021-09-30

Abstract

Abstract:

【Objective】 The nutrient ecological stoichiometry and nutrient reabsorption characteristics of Taxus chinensis var. mairei needles were studied to reveal its nutrient restriction pattern and nutrient efficient utilization strategy, thereby providing a theoretical basis for its high-quality afforestation and plantation cultivation 【Method】 The nutrient contents, ecological stoichiometric ratio, nutrient reabsorption efficiency and their relationships were analyzed by measuring the contents of carbon (C), nitrogen (N), and phosphorus (P) and their stoichiometric characteristics in needles of 9-year-old T. chinensis var. mairei plantations at different growth stages. 【Result】 The results showed that the average C, N and P contents of T. chinensis var. mairei plantation needles were 479.67, 22.52 and 2.21 g/kg, respectively. The C/N mass ratio (C:N), C/P mass ratio (C:P), and N/P mass ratio (N:P) were 21.74, 226.25 and 10.55, respectively. A significantly positive correlation between N, P and C existed. Similarly, P content was significantly positively correlated with C content. The C content, which was stable in the needles, had a lower coefficient of variation (3.09%), and P (22.43%) content had higher variability than that of N (15.34%). During the growing season (from June to November), the contents of C and P first rose slightly, and decreased dramatically,both peaked in August and kept until September. The C and N contents reached the lowest in October and November, respectively. The P content increased obviously first, then declined greatly,and peaked in September,much higher than those in other months. Changes in C:N and N:P were stabler than those in C:P that relied on P content. The nitrogen reabsorption efficiency (NRE) and phosphorus reabsorption efficiency (PRE) were 19.33% and 22.16%, respectively. The PRE was negatively correlated with P content and C:P in the senescent needles, but positively correlated with N:P. 【Conclusion】 In the study area, needles of 9-year-old T. chinensis var. mairei plantations had a good C storage capacity and nutrient resource competitiveness, and the nutrients were retained long time in needles because of the low efficiency of N and P reabsorption. Therefore, growth and development of T. chinensis var. mairei plantations was not hindered by N and P.

Key words: Taxus chinensis var. mairei plantation, needle nutrient elements, stoichiometry characteristics, nutrient reabsorption efficiency

CLC Number:

S792.99

CHEN Li, LIU Chenggong, QIAN Yingying, TANG Xiaodie, WANG Shengshu, LI Zhidong, LI Yan, CUI Jun. Stoichiometric characteristics of C, N, P of Taxus chinensis var. mairei plantation needles[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2021, 45(5): 53-61.

Figures/Tables 5

Table 1

Fig.1

Table 2

Fig.2

Table 3

References 50

[1]	ÅGREN G I. Stoichiometry and nutrition of plant growth in natural communities[J]. Annu Rev Ecol, Evol, Syst, 2008, 39(1):152-170. DOI: 10.1146/ANNUREV.ECOLSYS.39.110707.173515. doi: 10.1146/ANNUREV.ECOLSYS.39.110707.173515
[2]	GÜSEWELL S. N:P ratios in terrestrial plants: variation and functional significance[J]. New Phytol, 2004, 164(2):243-266. DOI: 10.1111/j.1469-8137.2004.01192.x. doi: 10.1111/j.1469-8137.2004.01192.x
[3]	TANG Z Y, XU W T, ZHOU G Y, et al. Patterns of plant carbon, nitrogen, and phosphorus concentration in relation to productivity in China’s terrestrial ecosystems[J]. PNAS, 2018, 115(26):E6095-E6096. DOI: 10.1073/pnas.1808126115. doi: 10.1073/pnas.1808126115
[4]	ELSER J J, BRACKEN M E S, CLELAND E E, et al. Global analysis of nitrogen and phosphorus limitation of primary producers in freshwater, marine and terrestrial ecosystems[J]. Ecol Lett, 2007, 10(12):1135-1142. DOI: 10.1111/j.1461-0248.2007.01113.x. doi: 10.1111/j.1461-0248.2007.01113.x
[5]	REICH P B. Global biogeography of plant chemistry: filling in the blanks[J]. New Phytol, 2005, 168(2):263-266. DOI: 10.1111/j.1469-8137.2005.01562.x. doi: 10.1111/j.1469-8137.2005.01562.x
[6]	YANG Y, LIU B R, AN S S. Ecological stoichiometry in leaves, roots, litters and soil among different plant communities in a desertified region of northern China[J]. CATENA, 2018, 166:328-338. DOI: 10.1016/j.catena.2018.04.018. doi: 10.1016/j.catena.2018.04.018
[7]	胡小燕, 段爱国, 张建国, 等. 广西大青山杉木人工林碳氮磷生态化学计量特征[J]. 生态学报, 2020, 40(4):1207-1218.
	HU X Y, DUAN A G, ZHANG J G, et al. Stoichiometry of carbon, nitrogen, and phosphorus of Chinese fir plantations in Daqing Mountain, Guangxi[J]. Acta Ecol Sin, 2020, 40(4):1207-1218. DOI: 10.5846/stxb201812192754. doi: 10.5846/stxb201812192754
[8]	勒佳佳, 苏原, 罗艳, 等. 围封对天山高寒草原4种植物叶片和土壤化学计量学特征的影响[J]. 生态学报, 2020, 40(5):1621-1628.
	LE J J, SU Y, LUO Y, et al. Effects of enclosure on leaves of four plants and soil stoichiometry in an alpine grassland of Tianshan Mountains[J]. Acta Ecol Sin, 2020, 40(5):1621-1628. DOI: 10.5846/stxb201901130107. doi: 10.5846/stxb201901130107
[9]	邓健, 种玉洁, 贾小敏, 等. 黄土高原子午岭林区典型树种叶片N、P再吸收特征[J]. 生态学报, 2020, 40(11):3698-3705.
	DENG J, CHONG Y J, JIA X M, et al. Leaf N and P resorption characteristics of typical tree species in the Ziwuling forest area on Loess Plateau[J]. Acta Ecol Sin, 2020, 40(11):3698-3705. DOI: 10.5846/stxb201906201294. doi: 10.5846/stxb201906201294
[10]	AI Z M, HE L R, XIN Q, et al. Slope aspect affects the non-structural carbohydrates and C:N:P stoichiometry of Artemisia sacrorum on the Loess Plateau in China[J]. Catena, 2017, 152:9-17. DOI: 10.1016/j.catena.2016.12.024. doi: 10.1016/j.catena.2016.12.024
[11]	RONG Q Q, LIU J T, CAI Y P, et al. Leaf carbon, nitrogen and phosphorus stoichiometry of Tamarix chinensis Lour. in the Laizhou Bay coastal wetland, China[J]. Ecol Eng, 2015, 76:57-65. DOI: 10.1016/j.ecoleng.2014.03.002. doi: 10.1016/j.ecoleng.2014.03.002
[12]	SARDANS J, ALONSO R, CARNICER J, et al. Factors influencing the foliar elemental composition and stoichiometry in forest trees in Spain[J]. Perspect Plant Ecol Evol Syst, 2016, 18:52-69. DOI: 10.1016/j.ppees.2016.01.001. doi: 10.1016/j.ppees.2016.01.001
[13]	KILLINGBECK K T. The terminological jungle revisited: making a case for use of the term resorption[J]. Oikos, 1986, 46(2):263-264. DOI: 10.2307/3565477. doi: 10.2307/3565477
[14]	罗芊芊, 楚秀丽, 李峰卿, 等. 5年生南方红豆杉生长和分枝性状家系变异与选择[J]. 林业科学研究, 2020, 33(1):136-143.
	LUO Q Q, CHU X L, LI F Q, et al. Family variation and selection of growth and branching traits of 5-year-old Taxus wallichiana var. mairei[J]. For Res, 2020, 33(1):136-143. DOI: 10.13275/j.cnki.lykxyj.2020.01.018. doi: 10.13275/j.cnki.lykxyj.2020.01.018
[15]	欧建德, 吴志庄. 幼龄南方红豆杉人工林树冠形态特征与生长形质通径分析[J]. 南京林业大学学报(自然科学版), 2019, 43(4):185-191.
	OU J D, WU Z Z. Path analysis between canopymorphological characteristics and growth form quality of Taxus chinensis var. mairei plantation at young age[J]. J Nanjing For Univ (Nat Sci Ed), 2019, 43(4):185-191. DOI: 10.3969/j.issn.1000-2006.201805011. doi: 10.3969/j.issn.1000-2006.201805011
[16]	李先琨, 向悟生, 苏宗明. 南方红豆杉无性系种群结构和动态研究[J]. 应用生态学报, 2004, 15(2):177-180.
	LI X K, XIANG W S, SU Z M. Structure and dynamics of Taxus chinensis var. mairei clonal population[J]. Chin J Appl Ecol, 2004, 15(2):177-180. DOI: 10.13287/j.1001-9332.2004.0042. doi: 10.13287/j.1001-9332.2004.0042
[17]	费永俊, 龚秀红. 南方红豆杉表型多样性及变异[J]. 湖北农学院学报, 2001, 21(4):310-313.
	FEI Y J, GONG X H. Phenotypic diversity and variation of Taxus chinensis var. mairei[J]. J Hubei Agric Coll, 2001, 21(4):310-313.
[18]	POORTER L, BONGERS F. Leaf traits are good predictors of plant performance across 53 rain forest species[J]. Ecology, 2006, 87(7):1733-1743. DOI: 10.1890/0012-9658(2006)87[1733:ltagpo]2.0.CO;2. doi: 10.1890/0012-9658(2006)87
[19]	ELSER J J, FAGAN W F, DENNO R F, et al. Nutritional constraintsin terrestrial and freshwater food webs[J]. Nature, 2000, 408(6812):578-580. DOI: 10.1038/35046058. doi: 10.1038/35046058
[20]	REICH R B, OLEKSYN J. Global patterns of plant leaf N and P in relation to temperature and latitude[J]. PNAS, 2004, 101(30):11001-11006. DOI: 10.1073/pnas.0403588101. doi: 10.1073/pnas.0403588101
[21]	原雅楠, 李正才, 王斌, 等. 榧树种内C、N、P生态化学计量特征研究[J]. 林业科学研究, 2019, 32(6):73-79.
	YUAN Y N, LI Z C, WANG B, et al. Stoichiometric characteristics of C,N and P in different varieties of Torreya grandis[J]. For Res, 2019, 32(6):73-79. DOI: 10.13275/j.cnki.lykxyj.2019.06.010. doi: 10.13275/j.cnki.lykxyj.2019.06.010
[22]	崔浩, 张前前, 陈明月, 等. 鄱阳湖南矶湿地22种植物根系碳氮及其化学计量研究[J]. 生态学报, 2020, 40(3):864-873.
	CUI H, ZHANG Q Q, CHEN M Y, et al. Root C, N and C:N stoichiometry of 22 plant species in Nanji wetlands of Poyang Lake[J]. Acta Ecol Sin, 2020, 40(3):864-873. DOI: 10.5846/stxb201811012357. doi: 10.5846/stxb201811012357
[23]	ZHANG G Q, ZHANG P, PENG S Z, et al. The coupling of leaf, litter, and soil nutrients in warm temperate forests in northwestern China[J]. Sci Rep, 2017, 7(1):11754. DOI: 10.1038/s41598-017-12199-5. doi: 10.1038/s41598-017-12199-5
[24]	HAN W X, FANG J Y, GUO D L, et al. Leaf nitrogen and phosphorus stoichiometry across 753 terrestrial plant species in China[J]. New Phytol, 2005, 168(2):377-385. DOI: 10.1111/j.1469-8137.2005.01530.x. doi: 10.1111/j.1469-8137.2005.01530.x
[25]	杨文高, 字洪标, 陈科宇, 等. 青海森林生态系统中灌木层和土壤生态化学计量特征[J]. 植物生态学报, 2019, 43(4):352-364. doi: 10.17521/cjpe.2018.0326
	YANG W G, ZI H B, CHEN K Y, et al. Ecological stoichiometric characteristics of shrubs and soils in different forest types in Qinghai, China[J]. Chin J Plant Ecol, 2019, 43(4):352-364. DOI: 10.17521/cjpe.2018.0326. doi: 10.17521/cjpe.2018.0326
[26]	PAN F J, ZHANG W, LIU S, et al. Leaf N:P stoichiometry across plant functional groups in the Karst region of southwestern China[J]. Trees, 2015, 29(3):883-892. DOI: 10.1007/s00468-015-1170-y. doi: 10.1007/s00468-015-1170-y
[27]	STERNER R W, ELSER J J. Ecological stoichiometry: the biology of elements from molecules to the biosphere[EB/OL]. https://doi.org/10.1093/plankt/25.9.1183,2002 .
[28]	吴鹏, 崔迎春, 赵文君, 等. 茂兰喀斯特区68种典型植物叶片化学计量特征[J]. 生态学报, 2020, 40(14):5063-5080.
	WU P, CUI Y C, ZHAO W J, et al. Leaf stoichiometric characteristics of 68 typical plant species in Maolan National Nature Reserve, Guizhou, China[J]. Acta Ecol Sin, 2020, 40(14):5063-5080. DOI: 10.5846/stxb201904080678. doi: 10.5846/stxb201904080678
[29]	张藤子, 李亚楠, 韩飞燕, 等. 辽西两种油松混交林土壤及油松叶片C:N:P化学计量特征[J]. 生态学杂志, 2018, 37(10):3061-3067.
	ZHANG T Z, LI Y N, HAN F Y, et al. C:N:P stoichiometry of Pinus tabuliformis leaf and soil in two mixed stands in western Liaoning Province[J]. Chin J Ecol, 2018, 37(10):3061-3067. DOI: 10.13292/j.1000-4890.201810.015. doi: 10.13292/j.1000-4890.201810.015
[30]	仇宏格, 杨秀清, 梁楠, 等. 基于叶片性状变化下云杉幼苗更新的C, N, P调控机制[J]. 山西农业科学, 2019, 47(3):329-333.
	QIU H G, YANG X Q, LIANG N, et al. Regulation mechanism of C, N and P on Picea aspoerata seedling regeneration based on leaf traits change[J]. J Shanxi Agric Sci, 2019, 47(3):329-333. DOI: 10.3969/j.issn.1002-2481.2019.03.09. doi: 10.3969/j.issn.1002-2481.2019.03.09
[31]	TIAN D, YAN Z B, MA S H, et al. Family-level leaf nitrogen and phosphorus stoichiometry of global terrestrial plants[J]. Sci China Life Sci, 2019, 62(8):1047-1057. DOI: 10.1007/s11427-019-9584-1. doi: 10.1007/s11427-019-9584-1
[32]	柯立, 崔珺, 杨佳, 等. 安徽石台亚热带常绿阔叶林植物叶中C、N、P特征分析[J]. 南京林业大学学报(自然科学版), 2014, 38(6):28-32.
	KE L, CUI J, YANG J, et al. Foliar C, N and P stoichiometry in subtropical evergreen broad-leaf forestin Shitai County, Anhui Province[J]. J Nanjing For Univ (Nat Sci Ed), 2014, 38(6):28-32. DOI: 10.3969/j.issn.1000-2006.2014.06.006. doi: 10.3969/j.issn.1000-2006.2014.06.006
[33]	张志录, 刘中华, 陈明辉. 伏牛山区红豆杉不同叶龄叶片性状对海拔梯度的响应[J]. 福州大学学报(自然科学版), 2019, 47(2):265-271,278.
	ZHANG Z L, LIU Z H, CHEN M H. Effects of altitude gradient on the leaf traits at different leaf age of Taxus chinensis in Funiu area[J]. J Fuzhou Univ (Nat Sci Ed), 2019, 47(2):265-271, 278. DOI: 10.7631/issn.1000-2243.18234. doi: 10.7631/issn.1000-2243.18234
[34]	KOERSELMAN W, MEULEMAN A F M. The vegetation N:P ratio: a new tool to detect the nature of nutrient limitation[J]. J Appl Ecol, 1996, 33(6):1441-1450.DOI: 10.2307/2404783. doi: 10.2307/2404783
[35]	杨承栋. 我国人工林土壤有机质的量和质下降是制约林木生长的关键因子[J]. 林业科学, 2016, 52(12):1-12.
	YANG C D. Decline of quantity and quality of soil organic matter is the key factorrestricting the growth of plantation in China[J]. Sci Silvae Sin, 2016, 52(12):1-12. DOI: 10.11707/j.1001-7488.20161201. doi: 10.11707/j.1001-7488.20161201
[36]	贺合亮, 阳小成, 李丹丹, 等. 青藏高原东部窄叶鲜卑花碳、氮、磷化学计量特征[J]. 植物生态学报, 2017, 41(1):126-135. doi: 10.17521/cjpe.2016.0031
	HE H L, YANG X C, LI D D, et al. Stoichiometric characteristics of carbon, nitrogen and phosphorus of Sibiraea angustata shrub on the eastern Qinghai-Xizang Plateau[J]. Chin J Plant Ecol, 2017, 41(1):126-135. DOI: 10.17521/cjpe.2016.0031. doi: 10.17521/cjpe.2016.0031
[37]	罗艳, 贡璐, 朱美玲, 等. 塔里木河上游荒漠区4种灌木植物叶片与土壤生态化学计量特征[J]. 生态学报, 2017, 37(24):8326-8335.
	LUO Y, GONG L, ZHU M L, et al. Stoichiometry characteristics of leaves and soil of four shrubs in the upper reaches of the Tarim River Desert[J]. Acta Ecol Sin, 2017, 37(24):8326-8335. DOI: 10.5846/stxb201611222379. doi: 10.5846/stxb201611222379
[38]	LIH L, CRABBE M J C, XU F L, et al. Seasonal variations in carbon, nitrogen and phosphorus concentrations and C:N:P stoichiometry in different organs of a Larix principis-rupprechtii Mayr. plantation in the Qinling Mountains, China[J]. PLoS One, 2017, 12(9):e0185163. DOI: 10.1371/journal.pone.0185163. doi: 10.1371/journal.pone.0185163
[39]	周磊, 吴慧, 王树力. 不同林分红皮云杉针叶养分含量及生态化学计量特征研究[J]. 植物资源与环境学报, 2020, 29(3):19-25, 33.
	ZHOU L, WU H, WANG S L. Study on nutrient contents and ecological stoichiometric characteristics in needles of Picea koraiensis in different stands[J]. J Plant Resou rEnviron, 2020, 29(3):19-25, 33. DOI: 10.3969/j.issn.1674-7895.2020.03.03. doi: 10.3969/j.issn.1674-7895.2020.03.03
[40]	李川, 朱陈名, 葛之葳, 等. 芦苇与土壤间氮磷化学计量的灰色关联分析[J]. 南京林业大学学报(自然科学版), 2016, 40(2):16-20.
	LI C, ZHU C M, GE Z W, et al. Gray correlation analysis on nitrogen and phosphorus stoichiometrybetween Phragmites australis and soil[J]. J Nanjing For Univ (Nat Sci Ed), 2016, 40(2):16-20. DOI: 10.3969/j.issn.1000-2006.2016.02.003. doi: 10.3969/j.issn.1000-2006.2016.02.003
[41]	MATZEK V, VITOUSEK P M. N:P stoichiometry and protein:RNA ratios in vascular plants: an evaluation of the growth-rate hypojournal[J]. Ecol Lett, 2009, 12(8):765-771. DOI: 10.1111/j.1461-0248.2009.01310.x. doi: 10.1111/j.1461-0248.2009.01310.x
[42]	TULLY K L, WOOD T E, SCHWANTES A M, et al. Soil nutrient availability and reproductive effort drive patterns in nutrient resorption in Pentaclethra macroloba[J]. Ecology, 2013, 94(4):930-940. DOI: 10.1890/12-0781.1. doi: 10.1890/12-0781.1
[43]	VERGUTZ L, MANZONI S, PORPORATO A, et al. Global resorption efficiencies and concentrations of carbon and nutrients in leaves of terrestrial plants[J]. Ecol Monogr, 2012, 82(2):205-220. DOI: 10.1890/11-0416.1. doi: 10.1890/11-0416.1
[44]	EDWARDS E J, CHATELET D S, SACK L, et al. Leaf life span and the leaf economic spectrum in the context of whole plant architecture[J]. J Ecol, 2014, 102(2):328-336. DOI: 10.1111/1365-2745.12209. doi: 10.1111/1365-2745.12209
[45]	樊博, 何光熊, 史亮涛, 等. 干热河谷草本植物叶片养分含量与养分再吸收效率的种间差异[J]. 西南农业学报, 2017, 30(9):2053-2059.
	FAN B, HE G X, SHI L T, et al. Differences in nutrient content and nutrient resorption efficiencies of grass leaves among different species in arid-hot valley[J]. Southwest China J Agric Sci, 2017, 30(9):2053-2059. DOI: 10.16213/j.cnki.scjas.2017.9.022. doi: 10.16213/j.cnki.scjas.2017.9.022
[46]	KOBE R K, LEPCZYK C A, IYER M. Resorption efficiency decreases with increasing green leaf nutrients in a global data set[J]. Ecology, 2005, 86(10):2780-2792. DOI: 10.1890/04-1830. doi: 10.1890/04-1830
[47]	AN Y, WAN S Q, ZHOU X H, et al. Plant nitrogen concentration, use efficiency, and contents in a tallgrass prairie ecosystem under experimental warming[J]. Glob Change Biol, 2005, 11(10):1733-1744. DOI: 10.1111/j.1365-2486.2005.01030.x. doi: 10.1111/j.1365-2486.2005.01030.x
[48]	AERTS R. Nutrient use efficiency in evergreen and deciduous species from heathlands[J]. Oecologia, 1990, 84(3):391-397. DOI: 10.1007/BF00329765. doi: 10.1007/BF00329765
[49]	严思维, 陈爱民, 林勇明, 等. 干热河谷区不同林龄赤桉叶中养分含量和再吸收率的比较及其线性回归分析[J]. 植物资源与环境学报, 2017, 26(1):39-46.
	YAN S W, CHEN A M, LIN Y M, et al. Comparisons on content and reabsorption rate of nutrients in leaf of Eucalyptus camaldulensis at different stand ages in arid-hot valley and their linear-regression analysis[J]. J Plant Resour Environ, 2017, 26(1):39-46. DOI: 10.3969/j.issn.1674-7895.2017.01.05. doi: 10.3969/j.issn.1674-7895.2017.01.05
[50]	闫涛, 杨凯, 朱教君. 辽东山区主要树种叶片氮、磷、钾再吸收[J]. 生态学杂志, 2014, 33(8):2005-2011.
	YAN T, YANG K, ZHU J J. Leaf N, P and K resorption of major tree species in a montane region of eastern Liaoning Province, China[J]. Chin J Ecol, 2014, 33(8):2005-2011. DOI: 10.13292/j.1000-4890.2014.0178. doi: 10.13292/j.1000-4890.2014.0178

Metrics

Comments

www.nldxb.njfu.edu.cn

Edited ＆ Published by Editorial Department of Nanjing Forestry University(Natural Sciences Edition)
Address： No.159 Longpan Road,Nanjing 210037 Jiangsu,P.R.China
E-mail ：xuebao@njfu.edu.cn , xuebao@njfu.com.cn
Telephone +86-25-85428247,85427076
Distributed by China International Book Trading Corporation P.O. Box 399, Beijing ,P.R. China

统计值 statistics	元素含量/(g·kg^-1) element content			比值ratio
统计值 statistics	C	N	P	C∶N	C∶P	N∶P
均值 mean	479.67± 18.73	22.52± 3.45	2.21± 0.50	21.74± 3.00	226.25± 46.58	10.55± 2.34
极大值 max.	509.90	32.90	4.01	28.22	312.53	16.16
极小值 min.	418.20	15.50	1.54	14.35	125.88	5.60
全距 range	91.70	17.40	2.47	13.87	186.65	10.56
变异系数/% CV	3.90	15.34	22.43	13.80	20.59	22.13

统计量 statistics	c(C)	c(N)	c(P)	C∶N	C∶P	N∶P
c(C)	1.000
c(N)	0.392^**	1.000
c(P)	0.299^*	0.438^**	1.000
C∶N	-0.229	-0.970^**	-0.390^**	1.000
C∶P	-0.141	-0.387^**	-0.933^**	0.377^*	1.000
N∶P	-0.051	0.137	-0.787^**	-0.170	0.841^**	1.000

y	x		成熟叶mature leaves						衰老叶senescent leaves
y	x		方程equation		R²		P		方程equation		R²	P
N重吸收率 NRE	c(C)	y=0.181 x-69.393		0.014		0.371		y =-0.025 x+42.312		0.009		0.132
	c(N)	y=0.845 x-1.282		0.116		0.168		y =-1.172 x+42.312		0.153		0.399
	c(P)	y= 7.966 x-1.282		0.136		0.145		y=8.209 x+3.269		0.134		0.151
	C∶N	y =-0.930 x+38.217		0.107		0.179		y=1.188 x+3.269		0.163		0.124
	C∶P	y =-0.104 x+40.529		0.129		0.154		y =-0.061 x+34.325		0.122		0.161
	N∶P	y =-0.352 x+22.874		0.002		0.448		y =-1.339 x+33.118		0.194		0.101
P重吸收率 PRE	c(C)	y =-0.217 x+128.500		0.010		0.061		y=0.044 x+1.353		0.018		0.107
	c(N)	y=1.933 x-25.767		0.307		0.398		y=1.624 x-11.053		0.210		0.365
	c(P)	y=6.149 x+6.974		0.046		0.292		y =-17.824 x+56.336		0.345		0.047
	C∶N	y =-2.272 x+67.454		0.309		0.060		y =-1.943 x+68.081		0.293		0.066
	C∶P	y =-0.097 x+41.670		0.061		0.260		y =-1.909 x+67.265		0.283		0.026
	N∶P	y=3.267 x-10.820		0.117		0.183		y=3.106 x-11.709		0.534		0.013

Stoichiometric characteristics of C, N, P of Taxus chinensis var. mairei plantation needles

RichHTML

PDF

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 5

References 50

Related Articles 4

Recommended Articles

Metrics

Comments

Author

Reader

Reviewer

[1]	CHEN Pei, ZHOU Mingming, FANG Shengzuo, LIU Yang, YANG Wanxia, SHANG Xulan. Effects of light quality on accumulation of phenolic compounds and antioxidant activities in Cyclocarya paliurus (Batal.) Iljinskaja leaves from different families [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2020, 44(2): 17-25.
[2]	ZHOU Xin, WANG Guibin, LIU Lin, CAO Fuliang, ZU Yuangang. Effects of light intensity on the growth of Camptotheca acuminata seedlings and camptothecin contents [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2016, 40(03): 9-14.
[3]	KUANG Heling, WANG Guibin,CAO Fuliang. Influence of nitrogen levels on photosynthesis,nutrient elements and camptothecin content of Camptotheca acuminata [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2016, 40(03): 15-20.
[4]	WANG Guibin, ZHOU Xin, LIU Lin, CAO Fuliang, ZU Yuangang. Effects of temperature on the growth and camptothecin contents of Camptotheca acuminata [J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2016, 40(03): 21-25.