云南杨梅碳、氮、磷化学计量特征

doi:10.17521/cjpe.2016.0026

植物生态学报 ›› 2017, Vol. 41 ›› Issue (1): 136-146.DOI: 10.17521/cjpe.2016.0026

所属专题：中国灌丛生态系统碳储量的研究；生态化学计量

云南杨梅碳、氮、磷化学计量特征

苏凯文¹, 陈路红¹, 郑伟¹, 潘瑶², 尹华军³, 巩合德^1,^*()

¹西南林业大学生态旅游学院, 昆明 650224
²西南林业大学亚太森林组织昆明培训中心, 昆明 650224
³中国科学院成都生物研究所, 成都 610041

收稿日期:2016-01-17 接受日期:2016-12-25 出版日期:2017-01-10 发布日期:2017-01-23
通讯作者: 巩合德
作者简介:* 通信作者Author for correspondence (E-mail:sunzhiqiang1956@sina.com)
基金资助:
中国科学院战略性先导科技专项 (XDA050503030201)、国家自然科学基金(31560189)

Carbon, nitrogen and phosphorus stoichiometry of Myrica nana in Yunnan, China

Kai-Wen SU¹, Lu-Hong CHEN¹, Wei ZHENG¹, Yao PAN², Hua-Jun YIN³, He-De GONG^1,^*()

¹Ecotourism Faculty, Southwest Forestry University, Kunming 650224, China

²Asia-Pacific Network For Sustainable Forest Management And Rehabilitation Kunming Training Center, Kunming 650224, China
and
³Chengdu Institute of Biology, Chinese Academy of Science, Chengdu 610041, China

Received:2016-01-17 Accepted:2016-12-25 Online:2017-01-10 Published:2017-01-23
Contact: He-De GONG
About author:KANG Jing-yao(1991-), E-mail: kangjingyao_nj@163.com。

摘要/Abstract

摘要：

碳(C)、氮(N)、磷(P)在植物生长和各种生理调节机能中发挥着重要作用。为研究云南灌丛生态系统C、N、P含量之间的关系以及植物生物量、土壤C、N、P含量与植物C、N、P含量的相互影响, 该研究采用样地调查的方法, 在云南省云南杨梅(Myrica nana)灌丛主要分布区设立了29个样地, 通过测量样地中云南杨梅灌丛C、N、P含量, 系统分析了云南杨梅C、N、P的计量规律。结果显示: 1)研究区域云南杨梅根茎叶的C、N、P含量的平均值分别是45.94%、0.54%、0.03%, 46.32%、0.58%、0.03%和49.05%、1.70%、0.06% (干质量), 其中叶的C、N、P含量均显著高于茎和根。在根中C:N:P为1531:18:1, 在茎中C:N:P为1544:19:1, 而在叶中C:N:P为818:10:1, 反映了云南杨梅不同部位元素计量不同的分配关系; 2)云南杨梅叶片中C含量和N:P值随生物量的增加而降低, 但只有叶片C含量与生物量的相关关系极显著, 而N:P值与生物量的相关关系不显著。叶片中N含量和P含量随生物量的增加而升高, 其中P含量与生物量的相关关系显著, N含量与生物量的相关关系不显著。云南杨梅叶的N:P (34.2)明显大于8, 说明P是云南杨梅生长的限制因素。3)根的C、N、P含量与土壤中的P含量都有显著的相关性, 其中N、P为极显著正相关, C为显著负相关; 茎的C含量与土壤的C、N、P含量都显著负相关, 且N、P含量的相关性极显著, 而茎的P含量与土壤中的P含量极显著正相关; 叶的P含量与土壤的C、N、P含量都极显著正相关, 叶的C含量则与土壤的P含量极显著负相关。该研究结果可为西南高原灌丛生态系统的研究提供数据支持。

关键词: 云南杨梅, 碳, 氮, 磷, 元素计量, 生物量, 土壤

Abstract:

Aims Carbon (C), nitrogen (N) and phosphorus (P) play important roles in plant growth and physiological functions. We aimed at exploring the intrinsic relationships of C, N and P in Myrica nana—a common shrub in Yunnan Province—as well as their relationships with pant biomass and soil nutrients.
Methods We measured the concentration of C, N and P of M. nana from 29 sites for their magnitudes and correlations with soil nutrients.
Important findings 1) The arithmetic mean value of C, N and P concentration in the roots, stems and leaves of M. nana was 45.94%, 0.54%, 0.03%, and 46.32%, 0.58%, 0.03%, and 49.05%, 1.70%, 0.06%, respectively. C, N and P concentrations in the leaves were significantly higher than those in the roots and the stems. The C:N:P in roots, stems and leaves was 1531:18:1, 1544:19:1, and 818:10:1, respectively. 2) The C concentration and N:P in leaves of M. nana decreased with the increase of biomass of M. nana; the leaf C concentration was significantly correlated with biomass (p < 0.01), while the correlation between N:P and biomass was not significant (p > 0.05). The leaf N increased with the increase of plant biomass, the P was significantly correlated with biomass (p < 0.05), but the correlation between N concentration and biomass was not significant (p > 0.05). N:P in leaves was 34.2, suggesting that plant growth was limited by P. 3) C, N and P concentration in the roots were significantly correlated with soil P (p < 0.05), with N, P concentrations correlated with soil P positively (p < 0.01) and C negatively (p < 0.05). C concentration in the stems was significantly and negatively correlated with soil C, N, with significant correlation with C, N, and P concentration (p < 0.01). P concentration in the stems was significantly and positively correlated with soil P concentration (p < 0.01), while leaf P significantly and positively correlated with soil C, N and P (p < 0.01); leaf C concentration was significantly and negatively correlated with soil P (p < 0.01).

Key words: Myrica nana, carbon, nitrogen, phosphorus, stoichiometry, biomass, soil

苏凯文, 陈路红, 郑伟, 潘瑶, 尹华军, 巩合德. 云南杨梅碳、氮、磷化学计量特征. 植物生态学报, 2017, 41(1): 136-146. DOI: 10.17521/cjpe.2016.0026

Kai-Wen SU, Lu-Hong CHEN, Wei ZHENG, Yao PAN, Hua-Jun YIN, He-De GONG. Carbon, nitrogen and phosphorus stoichiometry of Myrica nana in Yunnan, China. Chinese Journal of Plant Ecology, 2017, 41(1): 136-146. DOI: 10.17521/cjpe.2016.0026

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图/表 7

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样地编号 Site number	样地地点 Site location	纬度 Latitude (N)	经度 Longitude (E)	海拔 Altitude (m)
YN002	云南省姚安县 Yao’an,Yunnan	25.52°	101.40°	2 220.6
YN003	云南省姚安县 Yao’an,Yunnan	25.49°	101.31°	2 623.1
YN004	云南省姚安县 Yao’an,Yunnan	25.50°	101.15°	2 093.3
YN006	云南省大姚县 Dayao,Yunnan	25.66°	101.15°	2 258.6
YN010	云南省大姚县 Dayao,Yunnan	25.71°	101.48°	2 120.4
YN011	云南省大姚县 Dayao,Yunnan	25.91°	101.23°	2 396.0
YN013	云南省牟定县 Mouding,Yunnan	25.45°	101.46°	2 037.9
YN016	云南省牟定县 Mouding,Yunnan	25.44°	101.53°	2 145.2
YN017	云南省牟定县 Mouding,Yunnan	25.45°	101.63°	2 245.0
YN018	云南省南华县 Nanhua,Yunnan	25.33°	101.03°	2 567.2
YN019	云南省南华县 Nanhua,Yunnan	25.17°	101.06°	2 392.4
YN020	云南省南华县 Nanhua,Yunnan	25.32°	101.26°	2 148.2
YN022	云南省禄丰县 Lufeng,Yunnan	25.31°	102.12°	2 113.1
YN024	云南省禄丰县 Lufeng,Yunnan	25.31°	101.90°	2 199.1
YN025	云南省禄丰县 Lufeng,Yunnan	25.32°	101.87°	2 272.3
YN026	云南省安宁县 Anning,Yunnan	24.86°	102.45°	2 043.8
YN027	云南省安宁县 Anning,Yunnan	24.82°	102.42°	2 123.4
YN028	云南省安宁县 Anning,Yunnan	24.85°	102.39°	1 950.0
YN029	云南省昆明市 Kunming,Yunnan	25.14°	102.61°	2 183.4
YN030	云南省嵩明县 Songming,Yunnan	25.41°	103.04°	2 084.8
YN038	云南省昆明市 Kunming,Yunnan	25.22°	102.66°	2 137.5
YN039	云南省富民县 Fumin,Yunnan	25.23°	102.42°	2 086.0
YN040	云南省富民县 Fumin,Yunnan	25.28°	102.63°	2 214.7
YN041	云南省寻甸县 Xundian,Yunnan	25.54°	103.39°	2 060.9
YN044	云南省寻甸县 Xundian,Yunnan	25.52°	103.38°	2 008.0
YN050	云南省会泽县 Huize,Yunnan	26.47°	103.46°	2 040.0
YN052	云南省会泽县 Huize,Yunnan	26.50°	103.45°	2 010.0
YN058	云南省师宗县 Shizong,Yunnan	24.91°	103.87°	2 156.0
YN068	云南省砚山县 Yanshan,Yunnan	23.77°	104.68°	1 656.0

样地编号 Site number	样地地点 Site location	纬度 Latitude (N)	经度 Longitude (E)	海拔 Altitude (m)
YN002	云南省姚安县 Yao’an,Yunnan	25.52°	101.40°	2 220.6
YN003	云南省姚安县 Yao’an,Yunnan	25.49°	101.31°	2 623.1
YN004	云南省姚安县 Yao’an,Yunnan	25.50°	101.15°	2 093.3
YN006	云南省大姚县 Dayao,Yunnan	25.66°	101.15°	2 258.6
YN010	云南省大姚县 Dayao,Yunnan	25.71°	101.48°	2 120.4
YN011	云南省大姚县 Dayao,Yunnan	25.91°	101.23°	2 396.0
YN013	云南省牟定县 Mouding,Yunnan	25.45°	101.46°	2 037.9
YN016	云南省牟定县 Mouding,Yunnan	25.44°	101.53°	2 145.2
YN017	云南省牟定县 Mouding,Yunnan	25.45°	101.63°	2 245.0
YN018	云南省南华县 Nanhua,Yunnan	25.33°	101.03°	2 567.2
YN019	云南省南华县 Nanhua,Yunnan	25.17°	101.06°	2 392.4
YN020	云南省南华县 Nanhua,Yunnan	25.32°	101.26°	2 148.2
YN022	云南省禄丰县 Lufeng,Yunnan	25.31°	102.12°	2 113.1
YN024	云南省禄丰县 Lufeng,Yunnan	25.31°	101.90°	2 199.1
YN025	云南省禄丰县 Lufeng,Yunnan	25.32°	101.87°	2 272.3
YN026	云南省安宁县 Anning,Yunnan	24.86°	102.45°	2 043.8
YN027	云南省安宁县 Anning,Yunnan	24.82°	102.42°	2 123.4
YN028	云南省安宁县 Anning,Yunnan	24.85°	102.39°	1 950.0
YN029	云南省昆明市 Kunming,Yunnan	25.14°	102.61°	2 183.4
YN030	云南省嵩明县 Songming,Yunnan	25.41°	103.04°	2 084.8
YN038	云南省昆明市 Kunming,Yunnan	25.22°	102.66°	2 137.5
YN039	云南省富民县 Fumin,Yunnan	25.23°	102.42°	2 086.0
YN040	云南省富民县 Fumin,Yunnan	25.28°	102.63°	2 214.7
YN041	云南省寻甸县 Xundian,Yunnan	25.54°	103.39°	2 060.9
YN044	云南省寻甸县 Xundian,Yunnan	25.52°	103.38°	2 008.0
YN050	云南省会泽县 Huize,Yunnan	26.47°	103.46°	2 040.0
YN052	云南省会泽县 Huize,Yunnan	26.50°	103.45°	2 010.0
YN058	云南省师宗县 Shizong,Yunnan	24.91°	103.87°	2 156.0
YN068	云南省砚山县 Yanshan,Yunnan	23.77°	104.68°	1 656.0

变量 Variable		数量 Number	平均值 Mean (%)	中值 Median (%)	标偏差 Standard deviation	最大值 Maximum (%)	最小值 Minimum (%)
C	根 Root	84	45.94	46.03	1.05	47.83	40.96
	茎 Shoot	83	46.32	46.48	0.69	47.74	43.89
	叶 Leaf	84	49.05	49.25	1.03	51.03	43.97
N	根 Root	84	0.54	0.54	0.86	0.82	0.38
	茎 Shoot	84	0.58	0.56	0.12	0.93	0.40
	叶 Leaf	84	1.70	1.73	0.23	2.15	0.29
P	根 Root	84	0.03	0.02	0.03	0.11	0.01
	茎 Shoot	84	0.03	0.02	0.02	0.09	0.01
	叶 Leaf	84	0.06	0.05	0.02	0.14	0.03

变量 Variable		数量 Number	平均值 Mean (%)	中值 Median (%)	标偏差 Standard deviation	最大值 Maximum (%)	最小值 Minimum (%)
C	根 Root	84	45.94	46.03	1.05	47.83	40.96
	茎 Shoot	83	46.32	46.48	0.69	47.74	43.89
	叶 Leaf	84	49.05	49.25	1.03	51.03	43.97
N	根 Root	84	0.54	0.54	0.86	0.82	0.38
	茎 Shoot	84	0.58	0.56	0.12	0.93	0.40
	叶 Leaf	84	1.70	1.73	0.23	2.15	0.29
P	根 Root	84	0.03	0.02	0.03	0.11	0.01
	茎 Shoot	84	0.03	0.02	0.02	0.09	0.01
	叶 Leaf	84	0.06	0.05	0.02	0.14	0.03

部位 Part	变量 Variable	数量 Number	平均值 Mean	最大值 Maximum	最小值 Minimum	标准偏差 Standard Deviation
根 Root	C:N	84	86.6	120.0	57.1	13.5
	C:P	84	2 559.8	5 189.6	419.7	1 494.8
	N:P	84	29.6	70.0	5.1	17.1
茎 Stem	C:N	83	82.2	116.3	49.9	14.5
	C:P	83	2 656.2	7 235.8	514.4	1 515.5
	N:P	83	31.9	83.76	4.95	16.7
叶 Leaf	C:N	84	30.4	153.9	23.1	14.1
	C:P	84	1 012.9	1 918.7	340.6	322.3
	N:P	84	34.2	64.6	9.1	9.8

云南杨梅碳、氮、磷化学计量特征

Carbon, nitrogen and phosphorus stoichiometry of Myrica nana in Yunnan, China

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部位 Part	项目 Element	根 Root			茎 Stem			叶 Leaf
部位 Part	项目 Element	C	N	P	C	N	P	C	N	P
根 Root	C	1	-0.025	-0.020	0.43^**	-0.03	-0.10	0.43^**	-0.09	-0.27^*
	N		1	0.080	-0.27^*	0.20	0.25^*	-0.23^*	0.20	0.42^**
	P			1	-0.28^*	-0.13	0.58^**	-0.27^*	0.05	0.42^**
茎 Stem	C				1	0.14	-0.53^**	0.65^**	0.01	-0.57^**
	N					1	0.18	-0.11	0.25^*	0.06
	P						1	-0.45^**	0.05	0.49^**
叶 Leaf	C							1	0.18	-0.47^**
	N								1	0.43^**
	P									1

	元素 Element	根 Root			茎 Stem			叶 Leaf
	元素 Element	C	N	P	C	N	P	C	N	P
表层土 Top soil	C	-0.09	0.10	0.14	-0.25^*	-0.11	0.10	-0.07	0.16	0.29^**
	N	-0.16	0.15	0.16	-0.29^**	-0.02	0.16	-0.17	0.18	0.31^**
	P	-0.27^*	0.33^**	0.32^**	-0.39^**	0.07	0.57^**	-0.39^**	0.21	0.46^**

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