Responses in allometric growth of two dominant species of subalpine meadow—Arundinella anomala and Miscanthus sinensis—to climate warming in Wugongshan Mountains, China

doi:10.17521/cjpe.2016.0117

Abstract

Abstract:

AimsArundinella anomala and Miscanthus sinensis are dominant species in the subalpine meadow of Wugongshan Mountains. Here we studied the effects of climate warming on allometric relationships among different growth components in the two species through simulated warming in natural habitat.
Methods The warming experiments were conducted with open-top chambers (OTCs) in natural habitat in a subalpine meadow community of Wugongshan Mountains. The two main Gramineae species, Arundinella anomala and Miscanthus sinensis, were selected as the study materials. Two sizes of OTCs were set up to create contrasting levels of warming (i.e. TD for low warming and TG for high warming). The morphological variables, such as the plant height and the basal diameter of shoots, were measured. Allometric analysis was conducted with the Smart Package in R software.
Important findings Significant or highly significant correlations and significant allometric relationships were found between and among growth components in both species. The allometry of the growth in most morphological features was strengthened and modified by simulated warming. Stem diameter and plant height, and spike length in A. anomala and M. sinensis changed from isometric to allometric following warming. The relationship The synchronized growth between stem diameter and spikelet in A. anomala was weakened, but their allometry was enhanced with increased warming. The allometric relationship between plant height and leaf length in A. anomala transformed into isometric growth, but it was in reversed pattern in M. sinensis. Warming promoted the plant height and leaf sheath length in A. anomala, whilst higher warming changed the growth relationship between plant height and leaf sheath length in M. sinensis. Similar allometric relationships among the leaf traits were observed, but warming did not significantly impact their allometric exponents. The results suggested that climate warming could have varied effects on different plants, and the differences are often related to the adaptability of plants.

http://jtp.cnki.net/bilingual/detail/html/ZWSB201609002

Key words: allometry, climate warming, Gramineae, subalpine meadow, Wugongshan Mountains

Xiao-Hong LI, Jian-Cheng XU, Yi-An XIAO, Wen-Hai HU, Yu-Song CAO. Responses in allometric growth of two dominant species of subalpine meadow—Arundinella anomala and Miscanthus sinensis—to climate warming in Wugongshan Mountains, China[J]. Chin J Plant Ecol, 2016, 40(9): 871-882.

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URL: https://www.plant-ecology.com/EN/10.17521/cjpe.2016.0117

https://www.plant-ecology.com/EN/Y2016/V40/I9/871

Figures/Tables 6

References 52

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参数 Item	处理物种 Species	n	R²	斜率检验 Shift A test	95%置信区间 95% confidence intervals	截距检验 Shift B test	95%置信区间 95% confidence intervals	共同斜率 Common slope
参数 Item	处理物种 Species	n	R²	斜率检验 Shift A test	95%置信区间 95% confidence intervals	截距检验 Shift B test	95%置信区间 95% confidence intervals	F	p
茎粗-株高 D-H	CKI	59	0.329^**	0.881^b	0.710, 1.093	2.534	2.399, 2.670	7.395	0.029
	TDI	59	0.198^**	1.208^a	0.955, 1.528	2.818	2.614, 3.023
	TGI	58	0.071^*	1.363^a	1.056, 1.759	2.949	2.702, 3.195
	CKII	60	0.419^**	0.934^b	0.766, 1.140	2.457	2.360, 2.554	9.911	0.002
	TDII	46	0.300^**	1.514^a	1.177, 1.947	2.733	2.548, 2.917
	TGII	45	0.292^**	1.333^a	1.032, 1.723	2.776	2.609, 2.943
茎粗-穗长 D-E	CKI	60	0.145^**	1.111^c	0.873, 1.413	1.958	1.768, 2.148	29.920	0.001
	TDI	60	0.166^**	1.566^b	1.234, 1.986	2.229	1.962, 2.496
	TGI	58	0.075^*	2.981^a	2.311, 3.846	3.166	2.627, 3.704
	CKII	60	0.269^**	1.526^a	1.221, 1.907	1.927^a	1.748, 2.105	4.938	0.090
	TDII	46	0.232^**	1.987^a	1.527, 2.585	2.078^b	1.825, 2.332
	TGII	45	0.148^**	2.237^a	1.690, 2.960	2.251^ab	1.943, 2.560
茎粗-小穗数 D-R	CKI	60	0.162^**	1.689^b	1.331, 2.143	2.450	2.164, 2.736	17.060	0.001
	TDI	60	0.076^*	2.076^b	1.617, 2.666	2.645	2.272, 3.018
	TGI	58	0.027	3.527^a	2.717, 4.580	3.584	2.930, 4.238
	CKII	60	0.177^**	1.853^b	1.463, 2.347	1.765	1.534, 1.995	8.858	0.015
	TDII	46	0.381^**	3.074^a	2.426, 3.896	2.262	1.910, 2.614
	TGII	45	0.263^**	2.502^ab	1.927, 3.248	2.002	1.682, 2.322

参数 Item	处理物种 Species	n	R²	斜率检验 Shift A test	95%置信区间 95% confidence intervals	截距检验 Shift B test	95%置信区间 95% confidence intervals	共同斜率 Common slope
参数 Item	处理物种 Species	n	R²	斜率检验 Shift A test	95%置信区间 95% confidence intervals	截距检验 Shift B test	95%置信区间 95% confidence intervals	F	p
茎粗-株高 D-H	CKI	59	0.329^**	0.881^b	0.710, 1.093	2.534	2.399, 2.670	7.395	0.029
	TDI	59	0.198^**	1.208^a	0.955, 1.528	2.818	2.614, 3.023
	TGI	58	0.071^*	1.363^a	1.056, 1.759	2.949	2.702, 3.195
	CKII	60	0.419^**	0.934^b	0.766, 1.140	2.457	2.360, 2.554	9.911	0.002
	TDII	46	0.300^**	1.514^a	1.177, 1.947	2.733	2.548, 2.917
	TGII	45	0.292^**	1.333^a	1.032, 1.723	2.776	2.609, 2.943
茎粗-穗长 D-E	CKI	60	0.145^**	1.111^c	0.873, 1.413	1.958	1.768, 2.148	29.920	0.001
	TDI	60	0.166^**	1.566^b	1.234, 1.986	2.229	1.962, 2.496
	TGI	58	0.075^*	2.981^a	2.311, 3.846	3.166	2.627, 3.704
	CKII	60	0.269^**	1.526^a	1.221, 1.907	1.927^a	1.748, 2.105	4.938	0.090
	TDII	46	0.232^**	1.987^a	1.527, 2.585	2.078^b	1.825, 2.332
	TGII	45	0.148^**	2.237^a	1.690, 2.960	2.251^ab	1.943, 2.560
茎粗-小穗数 D-R	CKI	60	0.162^**	1.689^b	1.331, 2.143	2.450	2.164, 2.736	17.060	0.001
	TDI	60	0.076^*	2.076^b	1.617, 2.666	2.645	2.272, 3.018
	TGI	58	0.027	3.527^a	2.717, 4.580	3.584	2.930, 4.238
	CKII	60	0.177^**	1.853^b	1.463, 2.347	1.765	1.534, 1.995	8.858	0.015
	TDII	46	0.381^**	3.074^a	2.426, 3.896	2.262	1.910, 2.614
	TGII	45	0.263^**	2.502^ab	1.927, 3.248	2.002	1.682, 2.322

参数 Item	处理物种 Species	n	R²	斜率检验 Shift A test	95%置信区间 95% confidence intervals	截距检验 Shift B test	95%置信区间 95% confidence intervals	共轴漂移检验 Shift C test	共同斜率 Common slope
参数 Item	处理物种 Species	n	R²	斜率检验 Shift A test	95%置信区间 95% confidence intervals	截距检验 Shift B test	95%置信区间 95% confidence intervals	共轴漂移检验 Shift C test	F	p
株高-节间距 H-P	CKI	60	0.600^**	1.193^a	1.011, 1.408	-1.064^a	-1.445, -0.684	bc	0.058	0.980
	TDI	60	0.494^**	1.158^a	0.961, 1.395	-1.047^b	-1.473, -0.622	ab
	TGI	58	0.539^**	1.181^a	0.985, 1.414	-1.108^b	-1.537, -0.679	a
	CKII	60	0.607^**	1.359^bc	1.153, 1.601	-1.474	-1.918, -1.031		9.808	0.008
	TDII	46	0.276^**	1.586^ab	1.229, 2.048	-1.963	-2.790, -1.135
	TGII	45	0.286^**	2.217^a	1.715, 2.867	-3.535	-4.768, -2.302
株高-叶片长 H-L	CKI	60	0.206^**	1.570^a	1.244, 1.980	-1.547	-2.253, -0.842		6.209	0.044
	TDI	60	0.234^**	1.073^b	0.854, 1.348	-0.593	-1.079, -0.108
	TGI	58	0.057	1.112^b	0.860, 1.439	-0.633	-1.212, -0.054
	CKII	60	0.248^**	0.990^b	0.790, 1.241	-0.444	-0.891, 0.003		11.580	0.004
	TDII	46	0.403^**	0.892^b	0.707, 1.126	-0.230	-0.653, 0.193
	TGII	45	0.496^**	1.499^a	1.207, 1.861	-1.555	-2.255, -0.855
株高-叶鞘长 H-S	CKI	60	0.274^**	1.100^a	0.881, 1.373	-1.161^a	-1.634, -0.688	c	4.664	0.113
	TDI	60	0.343^**	0.844^a	0.683, 1.042	-0.698^a	-1.051, -0.345	b
	TGI	57	0.042	1.175^a	0.904, 1.526	-1.352^a	-1.974, -0.73	a
	CKII	60	0.145^**	0.912^b	0.717, 1.161	-0.773	-1.213, -0.334		10.950	0.004
	TDII	46	0.171^**	0.753^b	0.573, 0.989	-0.508	-0.929, -0.088
	TGII	45	0.715^**	1.241^a	1.054, 1.461	-1.549	-1.985, -1.113
株高-叶面积 H-A	CKI	60	0.265^**	1.938^a	1.550, 2.423	-2.236^a	-3.074, -1.398	c	2.986	0.231
	TDI	60	0.184^**	1.607^a	1.271, 2.034	-1.621^a	-2.371, -0.871	b
	TGI	58	0.040	1.449^a	1.118, 1.878	-1.264^a	-2.025, -0.504	a
	CKII	60	0.252^**	2.102^a	1.678, 2.634	-2.706^a	-3.653, -1.759	c	4.174	0.124
	TDII	46	0.380^**	1.507^a	1.189, 1.910	-1.484^a	-2.212, -0.756	b
	TGII	45	0.627^**	1.885^a	1.564, 2.272	-2.389^b	-3.147, -1.632	a

参数 Item	处理物种 Species	n	R²	斜率检验 Shift A test	95%置信区间 95% confidence intervals	截距检验 Shift B test	95%置信区间 95% confidence intervals	共轴漂移检验 Shift C test	共同斜率 Common slope
参数 Item	处理物种 Species	n	R²	斜率检验 Shift A test	95%置信区间 95% confidence intervals	截距检验 Shift B test	95%置信区间 95% confidence intervals	共轴漂移检验 Shift C test	F	p
株高-节间距 H-P	CKI	60	0.600^**	1.193^a	1.011, 1.408	-1.064^a	-1.445, -0.684	bc	0.058	0.980
	TDI	60	0.494^**	1.158^a	0.961, 1.395	-1.047^b	-1.473, -0.622	ab
	TGI	58	0.539^**	1.181^a	0.985, 1.414	-1.108^b	-1.537, -0.679	a
	CKII	60	0.607^**	1.359^bc	1.153, 1.601	-1.474	-1.918, -1.031		9.808	0.008
	TDII	46	0.276^**	1.586^ab	1.229, 2.048	-1.963	-2.790, -1.135
	TGII	45	0.286^**	2.217^a	1.715, 2.867	-3.535	-4.768, -2.302
株高-叶片长 H-L	CKI	60	0.206^**	1.570^a	1.244, 1.980	-1.547	-2.253, -0.842		6.209	0.044
	TDI	60	0.234^**	1.073^b	0.854, 1.348	-0.593	-1.079, -0.108
	TGI	58	0.057	1.112^b	0.860, 1.439	-0.633	-1.212, -0.054
	CKII	60	0.248^**	0.990^b	0.790, 1.241	-0.444	-0.891, 0.003		11.580	0.004
	TDII	46	0.403^**	0.892^b	0.707, 1.126	-0.230	-0.653, 0.193
	TGII	45	0.496^**	1.499^a	1.207, 1.861	-1.555	-2.255, -0.855
株高-叶鞘长 H-S	CKI	60	0.274^**	1.100^a	0.881, 1.373	-1.161^a	-1.634, -0.688	c	4.664	0.113
	TDI	60	0.343^**	0.844^a	0.683, 1.042	-0.698^a	-1.051, -0.345	b
	TGI	57	0.042	1.175^a	0.904, 1.526	-1.352^a	-1.974, -0.73	a
	CKII	60	0.145^**	0.912^b	0.717, 1.161	-0.773	-1.213, -0.334		10.950	0.004
	TDII	46	0.171^**	0.753^b	0.573, 0.989	-0.508	-0.929, -0.088
	TGII	45	0.715^**	1.241^a	1.054, 1.461	-1.549	-1.985, -1.113
株高-叶面积 H-A	CKI	60	0.265^**	1.938^a	1.550, 2.423	-2.236^a	-3.074, -1.398	c	2.986	0.231
	TDI	60	0.184^**	1.607^a	1.271, 2.034	-1.621^a	-2.371, -0.871	b
	TGI	58	0.040	1.449^a	1.118, 1.878	-1.264^a	-2.025, -0.504	a
	CKII	60	0.252^**	2.102^a	1.678, 2.634	-2.706^a	-3.653, -1.759	c	4.174	0.124
	TDII	46	0.380^**	1.507^a	1.189, 1.910	-1.484^a	-2.212, -0.756	b
	TGII	45	0.627^**	1.885^a	1.564, 2.272	-2.389^b	-3.147, -1.632	a

参数 Item	处理物种 Species	n	R²	斜率检验 Shift A test	95%置信区间 95% confidence intervals	截距检验 Shift B test	95%置信区间 95% confidence intervals	共轴漂移检验Shift C test	共同斜率 Common slope
参数 Item	处理物种 Species	n	R²	斜率检验 Shift A test	95%置信区间 95% confidence intervals	截距检验 Shift B test	95%置信区间 95% confidence intervals	共轴漂移检验Shift C test	F	p
叶面积-叶片长 A-L	CKI	60	0.687^**	0.810^a	0.700, 0.938	0.263^a	0.086, 0.441	b	4.106	0.131
	TDI	60	0.736^**	0.668^a	0.584, 0.764	0.489^a	0.350, 0.628	a
	TGI	58	0.805^**	0.768^a	0.682, 0.864	0.338^a	0.189, 0.486	a
	CKII	60	0.819^**	0.471^c	0.421, 0.526	0.830	0.753, 0.907		30.610	0.001
	TLII	46	0.729^**	0.592^b	0.506, 0.693	0.649	0.503, 0.796
	TGII	44	0.907^**	0.728^a	0.662, 0.800	0.460	0.346, 0.575
叶面积-叶片宽 A-W	CKI	60	0.345^**	0.560^a	0.453, 0.691	-0.810^a	-0.988, -0.633	b	2.378	0.306
	TDI	60	0.608^**	0.548^a	0.465, 0.645	-0.819^b	-0.959, -0.680	b
	TGI	58	0.457^**	0.460^a	0.378, 0.560	-0.710^c	-0.859, -0.561	a
	CKII	60	0.892^**	0.608^a	0.557, 0.663	-0.944	-1.021, -0.867		19.410	0.001
	TLII	46	0.720^**	0.583^a	0.497, 0.684	-0.921	-1.067, -0.775
	TGII	44	0.657^**	0.379^b	0.316, 0.454	-0.636	-0.750, -0.521
叶面积-叶鞘长 A-S	CKI	60	0.214^**	0.567^b	0.450, 0.715	0.108	-0.090, 0.305		14.790	0.001
	TDI	60	0.163^**	0.525^b	0.414, 0.666	0.153	-0.043, 0.348
	TGI	58	0.267^**	0.949^a	0.756, 1.191	-0.545	-0.901, -0.189
	CKII	60	0.027	0.434^bc	0.336, 0.561	0.401	0.236, 0.567		6.745	0.032
	TLII	46	0.316^**	0.500^ab	0.390, 0.641	0.233	0.037, 0.429
	TGII	45	0.545^**	0.658^a	0.536, 0.809	0.024	-0.201, 0.249