山西芦芽山14种常见灌木生物量模型及生物量分配

doi:10.17521/cjpe.2016.0131

摘要/Abstract

摘要：

灌木生物量模型是估算灌木生物量的重要方法, 而灌木生物量在各器官间的分配是其适应周围环境的重要体现。基于对山西芦芽山地区14种常见灌木的各器官(根、茎和叶)、地上和总生物量, 以及基径、树高、冠幅的测定, 建立了各器官、地上及总生物量的最优估算模型, 探究了各器官生物量与总生物量(如叶质比、茎质比及根质比)及地上-地下生物量(根冠比)的关系。结果表明: (1)总体而言, 幂函数和线性函数对这些灌木生物量的估测效果较好。(2)生长低矮、分枝数多的灌木种采用冠幅面积估测生物量效果较好; 生长直立或分枝数少的灌木种采用总基径的平方与茎干高度乘积估测生物量效果较好; 其他介于两者之间的灌木种采用冠幅体积估测生物量效果较好。(3) 14种灌木的平均根冠比是0.61, 叶质比0.17, 茎质比0.48, 根质比0.35; 此外, 带刺灌木种除叶质比显著大于不带刺灌木种外, 茎质比、根质比和根冠比都显著小于不带刺灌木种。

关键词: 灌木, 生物量, 芦芽山, 叶质比, 根冠比

Abstract:

Aims Shrub species have evolved specific strategies to regulate biomass allocation among various organs or between above- and belowground biomass and shrub biomass model is an important approach to estimate biomass allocation among different shrub species. This study was designed to establish the optimal estimation models for each organ (leaf, stem, and root), aboveground and total biomass of 14 common shrub species in Mountain Luya, Shanxi Province, China. Furthermore, we explored biomass allocation characteristics of these shrub species by using the index of leaf biomass fraction (leaf to total biomass), stem biomass fraction (stem to total biomass), root biomass fraction (root to total biomass), and root to shoot mass ratio (R/S) (belowground to aboveground biomass).
Methods We used plant height, basal diameter, canopy diameter and their combination as variables to establish the optimal biomass estimation models for each shrub species. In addition, we used the ratios of leaf, stem, root to total biomass, and belowground to aboveground biomass to explore the difference of biomass allocation patterns of 14 shrub species.
Important findings Most of biomass estimation models could be well expressed by the exponential and linear functions. Biomass for shorter shrub species with more stems could be better estimated by canopy area; biomass for taller shrub species with less stems could be better estimated by the sum of the square of total base diameter multiply stem height; and biomass for the rest shrub species could be better estimated by canopy volume. The averaged value for these shrub species was 0.61, 0.17, 0.48, and 0.35 for R/S, leaf biomass fraction, stem biomass fraction, and root biomass fraction, respectively. Except for leaf biomass fraction, R/S, stem biomass fraction, and root biomass fraction for shrubs with thorn was significantly greater than that for shrubs without thorn.

Key words: shrub, biomass, Mountain Luya, leaf biomass fraction, root to shoot mass ratio

罗永开, 方精云, 胡会峰. 山西芦芽山14种常见灌木生物量模型及生物量分配. 植物生态学报, 2017, 41(1): 115-125. DOI: 10.17521/cjpe.2016.0131

Yong-Kai LUO, Jing-Yun FANG, Hui-Feng HU. Biomass estimation models and allocation patterns of 14 shrub species in Mountain Luya, Shanxi, China. Chinese Journal of Plant Ecology, 2017, 41(1): 115-125. DOI: 10.17521/cjpe.2016.0131

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链接本文: https://www.plant-ecology.com/CN/10.17521/cjpe.2016.0131

https://www.plant-ecology.com/CN/Y2017/V41/I1/115

图/表 6

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物种 Species	经度 Longitude (E)	纬度 Latitude (N)	海拔 Elevation (m)	科 Family	属 Genus	是否带刺 Thorn
沙棘 Hippophae rhamnoides	112.01°	38.68°	1 499.8	胡颓子科 Elaeagnaceae	沙棘属 Hippophae	是 Yes
三裂绣线菊 Spiraea trilobata	111.99°	38.69°	1 535.6	蔷薇科 Rosaceae	绣线菊属 Spiraea	否 No
黄刺玫 Rosa xanthina	111.99°	38.69°	1 535.6	蔷薇科 Rosaceae	蔷薇属 Rosa	是 Yes
虎榛子 Ostryopsis davidiana	111.99°	38.69°	1 535.6	桦木科 Betulaceae	虎榛子属 Ostryopsis	否 No
榛 Corylus heterophylla	111.99°	38.69°	1 535.6	桦木科 Betulaceae	榛属 Corylus	否 No
土庄绣线菊 Spiraea pubescens	111.98°	38.72°	1 659.9	蔷薇科 Rosaceae	绣线菊属 Spiraea	否 No
金花忍冬 Lonicera chrysantha	111.92°	38.65°	1 778.4	忍冬科 Caprifoliaceae	忍冬属 Lonicera	否 No
蒙古荚蒾 Viburnum mongolicum	111.92°	38.65°	1 780.0	忍冬科 Caprifoliaceae	荚迷属 Viburnum	否 No
唐古特忍冬 Lonicera tangutica	111.92°	38.65°	1 780.0	忍冬科 Caprifoliaceae	忍冬属 Lonicera	否 No
复盆子 Rubus idaeus	111.92°	38.65°	1 780.0	蔷薇科 Rosaceae	悬钩子属 Rubus	是 Yes
银露梅 Potentilla glabra	111.96°	38.72°	1 812.2	蔷薇科 Rosaceae	委陵菜属 Potentilla	否 No
山刺玫 Rosa davurica	111.95°	38.71°	1 874.3	蔷薇科 Rosaceae	蔷薇属 Rosa	是 Yes
刺果茶藨子 Ribes burejense	111.95°	38.71°	1 891.1	虎耳草科 Saxifragaceae	茶藨子属 Ribes	是 Yes
鬼箭锦鸡儿 Caragana jubata	111.86°	38.73°	2 602.2	豆科 Leguminosae	锦鸡儿属 Caragana	是 Yes

物种 Species	经度 Longitude (E)	纬度 Latitude (N)	海拔 Elevation (m)	科 Family	属 Genus	是否带刺 Thorn
沙棘 Hippophae rhamnoides	112.01°	38.68°	1 499.8	胡颓子科 Elaeagnaceae	沙棘属 Hippophae	是 Yes
三裂绣线菊 Spiraea trilobata	111.99°	38.69°	1 535.6	蔷薇科 Rosaceae	绣线菊属 Spiraea	否 No
黄刺玫 Rosa xanthina	111.99°	38.69°	1 535.6	蔷薇科 Rosaceae	蔷薇属 Rosa	是 Yes
虎榛子 Ostryopsis davidiana	111.99°	38.69°	1 535.6	桦木科 Betulaceae	虎榛子属 Ostryopsis	否 No
榛 Corylus heterophylla	111.99°	38.69°	1 535.6	桦木科 Betulaceae	榛属 Corylus	否 No
土庄绣线菊 Spiraea pubescens	111.98°	38.72°	1 659.9	蔷薇科 Rosaceae	绣线菊属 Spiraea	否 No
金花忍冬 Lonicera chrysantha	111.92°	38.65°	1 778.4	忍冬科 Caprifoliaceae	忍冬属 Lonicera	否 No
蒙古荚蒾 Viburnum mongolicum	111.92°	38.65°	1 780.0	忍冬科 Caprifoliaceae	荚迷属 Viburnum	否 No
唐古特忍冬 Lonicera tangutica	111.92°	38.65°	1 780.0	忍冬科 Caprifoliaceae	忍冬属 Lonicera	否 No
复盆子 Rubus idaeus	111.92°	38.65°	1 780.0	蔷薇科 Rosaceae	悬钩子属 Rubus	是 Yes
银露梅 Potentilla glabra	111.96°	38.72°	1 812.2	蔷薇科 Rosaceae	委陵菜属 Potentilla	否 No
山刺玫 Rosa davurica	111.95°	38.71°	1 874.3	蔷薇科 Rosaceae	蔷薇属 Rosa	是 Yes
刺果茶藨子 Ribes burejense	111.95°	38.71°	1 891.1	虎耳草科 Saxifragaceae	茶藨子属 Ribes	是 Yes
鬼箭锦鸡儿 Caragana jubata	111.86°	38.73°	2 602.2	豆科 Leguminosae	锦鸡儿属 Caragana	是 Yes

物种名 Species	最佳方程 Best model	最佳变量 Best variable	参数a Parameter variable a	参数b Parameter variable b	平均预估误差Mean prediction error (MPE) (%)	估计值的标准误差 Standard error of estimate (SEE)	R²	p
沙棘 Hippophae rhamnoides	W_Total = aD_t²H + b	D_t²H	0.002 0	52.34	15.48	94.78	0.91	<0.001
	W_Aboveground= aD_t²H + b	D_t²H	0.002 0	40.77	17.42	85.18	0.90	<0.001
	W_Root= aD_t²H + b	D_t²H	0.000 4	11.58	12.24	15.12	0.93	<0.001
	W_Stem= aD_t²H + b	D_t²H	0.001 0	30.06	18.10	69.05	0.89	<0.001
	W_Leaf = aD_t²H + b	D_t²H	0.000 4	10.71	17.27	18.55	0.88	<0.001
三裂绣线菊 Spiraea trilobata	W_Total = aV^b	V	0.049 0	0.66	0.40	0.83	0.45	<0.001
	W_Aboveground= aV^b	V	0.022 0	0.69	0.64	0.85	0.46	<0.001
	W_Root= aV^b	V	0.030 0	0.60	1.17	0.86	0.39	<0.001
	W_Stem= aV^b	V	0.012 0	0.72	0.95	0.96	0.42	<0.001
	W_Leaf = aV^b	V	0.005 0	0.70	2.57	0.85	0.46	<0.001
黄刺玫 Rosa xanthina	W_Total = aV^b	V	0.005 0	0.88	0.07	0.34	0.90	<0.001
黄刺玫 Rosa xanthina	W_Aboveground= aV^b	V	0.003 0	0.88	0.11	0.32	0.93	<0.001
	W_Root= aV^b	V	0.005 0	0.77	0.29	0.50	0.80	<0.001
	W_Stem= aV^b	V	0.002 0	0.89	0.16	0.35	0.92	<0.001
	W_Leaf = aV^b	V	0.001 0	0.86	0.40	0.33	0.92	<0.001
虎榛子 Ostryopsis davidiana	W_Total = aV + b	V	0.001 0	9.28	13.66	29.28	0.90	<0.001
	W_Aboveground= aV + b	V	0.000 8	6.25	12.87	19.43	0.91	<0.001
	W_Root= aV + b	V	0.000 2	3.03	16.66	10.56	0.86	<0.001
	W_Stem= aV + b	V	0.000 6	2.93	16.70	17.86	0.87	<0.001
	W_Leaf = aV + b	V	0.000 2	3.32	9.14	4.03	0.94	<0.001
榛 Corylus heterophylla	W_Total = a(D_t²H)^b	D_t²H	0.145 0	0.64	0.10	0.32	0.86	<0.001
	W_Aboveground= aV^b	V	0.000 1	1.15	0.17	0.34	0.85	<0.001
	W_Root= a(D_t²H)^b	D_t²H	0.032 0	0.68	0.30	0.34	0.86	<0.001
	W_Stem= a(D_t²H)^b	D_t²H	0.031 0	0.71	0.28	0.40	0.82	<0.001
	W_Leaf = aV^b	V	0.000 9	0.90	0.48	0.30	0.81	<0.001
土庄绣线菊 Spiraea pubescens	W_Total = aV + b	V	0.001 0	18.90	13.81	38.03	0.89	<0.001
	W_Aboveground= aV + b	V	0.002 0	8.02	12.84	22.11	0.91	<0.001
	W_Root= aV^b	V	0.020 0	0.74	0.44	0.45	0.78	<0.001
	W_Stem= aV + b	V	0.002 0	6.18	12.95	20.92	0.92	<0.001
	W_Leaf = a(D_t²H)^b	D_t²H	0.011 0	0.53	4.33	0.46	0.71	<0.001
金花忍冬 Lonicera chrysantha	W_Total= a(D_t²H)^b	D_t²H	0.365 0	0.56	0.08	0.42	0.82	<0.001
	W_Aboveground= a(D_t²H)^b	D_t²H	0.233 0	0.53	0.16	0.40	0.83	<0.001
	W_Root= aD_t²H + b	D_t²H	0.000 5	43.22	25.05	67.14	0.76	<0.001
	W_Stem= a(D_t²H)^b	D_t²H	0.136 0	0.56	0.20	0.41	0.83	<0.001
	W_Leaf = aD_t²H + b	D_t²H	0.000 1	9.08	18.23	8.19	0.78	<0.001
蒙古荚蒾 Viburnum mongolicum	W_Total = aV^b	V	0.006 0	0.88	0.12	0.32	0.92	<0.001
	W_Aboveground= aV^b	V	0.003 0	0.90	0.21	0.34	0.92	<0.001
	W_Root= aV^b	V	0.002 0	0.84	0.70	0.66	0.72	<0.001
	W_Stem= aV^b	V	0.001 0	0.91	0.34	0.47	0.91	<0.001
	W_Leaf = aV^b	V	0.000 3	0.89	1.94	0.50	0.85	<0.001
唐古特忍冬 Lonicera tangutica	W_Total = a(D_t²H)^b	D_t²H	0.200 0	0.54	0.30	0.34	0.80	<0.001
	W_Aboveground= aV^b	V	0.007 0	0.80	0.49	0.33	0.84	<0.001
	W_Root= aD_t²H + b	D_t²H	0.000 4	6.22	11.48	5.13	0.73	<0.001
物种名 Species	最佳方程 Best model	最佳变量 Best variable	参数a Parameter variable a	参数b Parameter variable b	平均预估误差Mean prediction error (MPE) (%)	估计值的标准误差Standard error of estimate (SEE)	R²	p
唐古特忍冬 Lonicera tangutica	W_Stem= a(D_t²H)^b	D_t²H	0.063 0	0.59	0.74	0.41	0.77	<0.001
唐古特忍冬 Lonicera tangutica	W_Leaf = aV^b	V	0.005 0	0.68	2.30	0.29	0.81	<0.001
复盆子 Rubus idaeus	W_Total = aV + b	V	0.000 6	12.52	10.18	6.76	0.84	<0.001
	W_Aboveground= aV + b	V	0.000 4	10.71	10.63	5.59	0.80	<0.001
	W_Root= aV + b	V	0.000 0	1.81	13.92	1.92	0.83	<0.001
	W_Stem= aV + b	V	0.000 2	4.59	14.17	3.43	0.73	<0.001
	W_Leaf = alnV + b	V	14.166 0	-69.23	11.41	3.24	0.77	<0.001
银露梅 Potentilla glabra	W_Total = aA + b	A	0.131 0	-6.74	19.50	42.11	0.82	<0.001
	W_Aboveground= aA + b	A	0.077 0	-2.81	19.75	25.62	0.81	<0.001
	W_Root= aA + b	A	0.054 0	-3.93	22.54	19.43	0.78	<0.001
	W_Stem= aA + b	A	0.068 0	-3.26	20.73	23.16	0.80	<0.001
	W_Leaf = aA + b	A	0.010 0	0.44	20.89	3.76	0.74	<0.001
山刺玫 Rosa davurica	W_Total = a(D_t²H)^b	D_t²H	0.061 0	0.69	0.11	0.29	0.88	<0.001
	W_Aboveground= a(D_t²H)^b	D_t²H	0.042 0	0.67	0.22	0.35	0.83	<0.001
	W_Root= a(D_t²H)^b	D_t²H	0.023 0	0.70	0.37	0.40	0.80	<0.001
	W_Stem= a(D_t²H)^b	D_t²H	0.025 0	0.70	0.27	0.36	0.84	<0.001
	W_Leaf = aA+b	A	0.020 0	-0.87	7.35	1.94	0.95	<0.001
刺果茶藨子 Ribes burejense	W_Total = aV^b	V	0.550 0	0.41	0.36	0.43	0.64	<0.001
	W_Aboveground= aV + b	V	0.000 4	12.39	16.40	12.07	0.66	<0.001
	W_Root= aA^b	A	0.938 0	0.46	1.39	0.64	0.47	<0.001
	W_Stem= aV + b	V	0.000 2	9.22	15.79	9.06	0.70	<0.001
	W_Leaf = aV^b	V	0.016 0	0.55	3.89	0.63	0.60	<0.001
鬼箭锦鸡儿 Caragana jubata	W_Total = aA + b	A	0.268 0	-10.27	12.92	48.69	0.93	<0.001
	W_Aboveground= aA + b	A	0.159 0	-3.65	16.51	38.04	0.88	<0.001
	W_Root= aA + b	A	0.110 0	-6.63	11.13	16.30	0.95	<0.001
	W_Stem= aA + b	A	0.120 0	-2.83	16.74	29.02	0.88	<0.001
	W_Leaf = aA + b	A	0.040 0	-0.82	21.53	12.27	0.81	<0.001

物种名 Species	最佳方程 Best model	最佳变量 Best variable	参数a Parameter variable a	参数b Parameter variable b	平均预估误差Mean prediction error (MPE) (%)	估计值的标准误差 Standard error of estimate (SEE)	R²	p
沙棘 Hippophae rhamnoides	W_Total = aD_t²H + b	D_t²H	0.002 0	52.34	15.48	94.78	0.91	<0.001
	W_Aboveground= aD_t²H + b	D_t²H	0.002 0	40.77	17.42	85.18	0.90	<0.001
	W_Root= aD_t²H + b	D_t²H	0.000 4	11.58	12.24	15.12	0.93	<0.001
	W_Stem= aD_t²H + b	D_t²H	0.001 0	30.06	18.10	69.05	0.89	<0.001
	W_Leaf = aD_t²H + b	D_t²H	0.000 4	10.71	17.27	18.55	0.88	<0.001
三裂绣线菊 Spiraea trilobata	W_Total = aV^b	V	0.049 0	0.66	0.40	0.83	0.45	<0.001
	W_Aboveground= aV^b	V	0.022 0	0.69	0.64	0.85	0.46	<0.001
	W_Root= aV^b	V	0.030 0	0.60	1.17	0.86	0.39	<0.001
	W_Stem= aV^b	V	0.012 0	0.72	0.95	0.96	0.42	<0.001
	W_Leaf = aV^b	V	0.005 0	0.70	2.57	0.85	0.46	<0.001
黄刺玫 Rosa xanthina	W_Total = aV^b	V	0.005 0	0.88	0.07	0.34	0.90	<0.001
黄刺玫 Rosa xanthina	W_Aboveground= aV^b	V	0.003 0	0.88	0.11	0.32	0.93	<0.001
	W_Root= aV^b	V	0.005 0	0.77	0.29	0.50	0.80	<0.001
	W_Stem= aV^b	V	0.002 0	0.89	0.16	0.35	0.92	<0.001
	W_Leaf = aV^b	V	0.001 0	0.86	0.40	0.33	0.92	<0.001
虎榛子 Ostryopsis davidiana	W_Total = aV + b	V	0.001 0	9.28	13.66	29.28	0.90	<0.001
	W_Aboveground= aV + b	V	0.000 8	6.25	12.87	19.43	0.91	<0.001
	W_Root= aV + b	V	0.000 2	3.03	16.66	10.56	0.86	<0.001
	W_Stem= aV + b	V	0.000 6	2.93	16.70	17.86	0.87	<0.001
	W_Leaf = aV + b	V	0.000 2	3.32	9.14	4.03	0.94	<0.001
榛 Corylus heterophylla	W_Total = a(D_t²H)^b	D_t²H	0.145 0	0.64	0.10	0.32	0.86	<0.001
	W_Aboveground= aV^b	V	0.000 1	1.15	0.17	0.34	0.85	<0.001
	W_Root= a(D_t²H)^b	D_t²H	0.032 0	0.68	0.30	0.34	0.86	<0.001
	W_Stem= a(D_t²H)^b	D_t²H	0.031 0	0.71	0.28	0.40	0.82	<0.001
	W_Leaf = aV^b	V	0.000 9	0.90	0.48	0.30	0.81	<0.001
土庄绣线菊 Spiraea pubescens	W_Total = aV + b	V	0.001 0	18.90	13.81	38.03	0.89	<0.001
	W_Aboveground= aV + b	V	0.002 0	8.02	12.84	22.11	0.91	<0.001
	W_Root= aV^b	V	0.020 0	0.74	0.44	0.45	0.78	<0.001
	W_Stem= aV + b	V	0.002 0	6.18	12.95	20.92	0.92	<0.001
	W_Leaf = a(D_t²H)^b	D_t²H	0.011 0	0.53	4.33	0.46	0.71	<0.001
金花忍冬 Lonicera chrysantha	W_Total= a(D_t²H)^b	D_t²H	0.365 0	0.56	0.08	0.42	0.82	<0.001
	W_Aboveground= a(D_t²H)^b	D_t²H	0.233 0	0.53	0.16	0.40	0.83	<0.001
	W_Root= aD_t²H + b	D_t²H	0.000 5	43.22	25.05	67.14	0.76	<0.001
	W_Stem= a(D_t²H)^b	D_t²H	0.136 0	0.56	0.20	0.41	0.83	<0.001
	W_Leaf = aD_t²H + b	D_t²H	0.000 1	9.08	18.23	8.19	0.78	<0.001
蒙古荚蒾 Viburnum mongolicum	W_Total = aV^b	V	0.006 0	0.88	0.12	0.32	0.92	<0.001
	W_Aboveground= aV^b	V	0.003 0	0.90	0.21	0.34	0.92	<0.001
	W_Root= aV^b	V	0.002 0	0.84	0.70	0.66	0.72	<0.001
	W_Stem= aV^b	V	0.001 0	0.91	0.34	0.47	0.91	<0.001
	W_Leaf = aV^b	V	0.000 3	0.89	1.94	0.50	0.85	<0.001
唐古特忍冬 Lonicera tangutica	W_Total = a(D_t²H)^b	D_t²H	0.200 0	0.54	0.30	0.34	0.80	<0.001
	W_Aboveground= aV^b	V	0.007 0	0.80	0.49	0.33	0.84	<0.001
	W_Root= aD_t²H + b	D_t²H	0.000 4	6.22	11.48	5.13	0.73	<0.001
物种名 Species	最佳方程 Best model	最佳变量 Best variable	参数a Parameter variable a	参数b Parameter variable b	平均预估误差Mean prediction error (MPE) (%)	估计值的标准误差Standard error of estimate (SEE)	R²	p
唐古特忍冬 Lonicera tangutica	W_Stem= a(D_t²H)^b	D_t²H	0.063 0	0.59	0.74	0.41	0.77	<0.001
唐古特忍冬 Lonicera tangutica	W_Leaf = aV^b	V	0.005 0	0.68	2.30	0.29	0.81	<0.001
复盆子 Rubus idaeus	W_Total = aV + b	V	0.000 6	12.52	10.18	6.76	0.84	<0.001
	W_Aboveground= aV + b	V	0.000 4	10.71	10.63	5.59	0.80	<0.001
	W_Root= aV + b	V	0.000 0	1.81	13.92	1.92	0.83	<0.001
	W_Stem= aV + b	V	0.000 2	4.59	14.17	3.43	0.73	<0.001
	W_Leaf = alnV + b	V	14.166 0	-69.23	11.41	3.24	0.77	<0.001
银露梅 Potentilla glabra	W_Total = aA + b	A	0.131 0	-6.74	19.50	42.11	0.82	<0.001
	W_Aboveground= aA + b	A	0.077 0	-2.81	19.75	25.62	0.81	<0.001
	W_Root= aA + b	A	0.054 0	-3.93	22.54	19.43	0.78	<0.001
	W_Stem= aA + b	A	0.068 0	-3.26	20.73	23.16	0.80	<0.001
	W_Leaf = aA + b	A	0.010 0	0.44	20.89	3.76	0.74	<0.001
山刺玫 Rosa davurica	W_Total = a(D_t²H)^b	D_t²H	0.061 0	0.69	0.11	0.29	0.88	<0.001
	W_Aboveground= a(D_t²H)^b	D_t²H	0.042 0	0.67	0.22	0.35	0.83	<0.001
	W_Root= a(D_t²H)^b	D_t²H	0.023 0	0.70	0.37	0.40	0.80	<0.001
	W_Stem= a(D_t²H)^b	D_t²H	0.025 0	0.70	0.27	0.36	0.84	<0.001
	W_Leaf = aA+b	A	0.020 0	-0.87	7.35	1.94	0.95	<0.001
刺果茶藨子 Ribes burejense	W_Total = aV^b	V	0.550 0	0.41	0.36	0.43	0.64	<0.001
	W_Aboveground= aV + b	V	0.000 4	12.39	16.40	12.07	0.66	<0.001
	W_Root= aA^b	A	0.938 0	0.46	1.39	0.64	0.47	<0.001
	W_Stem= aV + b	V	0.000 2	9.22	15.79	9.06	0.70	<0.001
	W_Leaf = aV^b	V	0.016 0	0.55	3.89	0.63	0.60	<0.001
鬼箭锦鸡儿 Caragana jubata	W_Total = aA + b	A	0.268 0	-10.27	12.92	48.69	0.93	<0.001
	W_Aboveground= aA + b	A	0.159 0	-3.65	16.51	38.04	0.88	<0.001
	W_Root= aA + b	A	0.110 0	-6.63	11.13	16.30	0.95	<0.001
	W_Stem= aA + b	A	0.120 0	-2.83	16.74	29.02	0.88	<0.001
	W_Leaf = aA + b	A	0.040 0	-0.82	21.53	12.27	0.81	<0.001

物种 Species	根冠比 R/S			叶质比 LMF			茎质比 SMF			根质比 RMF
物种 Species	范围 Range	平均值± 标准偏差 Mean ± SD	中位值 Median	范围 Range	平均值± 标准偏差 Mean ± SD	中位值 Median	范围 Range	平均值± 标准偏差 Mean ± SD	中位值 Median	范围 Range	平均值± 标准偏差 Mean ± SD	中位值 Median
沙棘 Hippophae rhamnoides	0.06-0.59	0.31 ± 0.14	0.29	0.07-0.30	0.20 ± 0.06	0.20	0.39-0.79	0.57 ± 0.11	0.54	0.06-0.37	0.23 ± 0.08	0.22
三裂绣线菊 Spiraea trilobata	0.32-1.24	0.57 ± 0.21	0.51	0.04-0.33	0.17 ± 0.09	0.15	0.25-0.67	0.48 ± 0.12	0.48	0.24-0.55	0.35 ± 0.07	0.34
黄刺玫 Rosa xanthina	0.19-2.00	0.55 ± 0.34	0.45	0.09-0.29	0.19 ± 0.05	0.18	0.24-0.67	0.48 ± 0.09	0.47	0.16-0.67	0.33 ± 0.11	0.31
虎榛子 Ostryopsis davidiana	0.16-0.97	0.42 ± 0.15	0.40	0.09-0.45	0.24 ± 0.08	0.23	0.35-0.58	0.47 ± 0.06	0.48	0.14-0.49	0.29 ± 0.07	0.29
榛 Corylus heterophylla	0.28-1.24	0.53 ± 0.22	0.47	0.10-0.34	0.24 ± 0.07	0.23	0.26-0.56	0.43 ± 0.07	0.42	0.22-0.55	0.34 ± 0.08	0.32
土庄绣线菊 Spiraea pubescens	0.45-1.42	0.72 ± 0.27	0.63	0.01-0.10	0.05 ± 0.03	0.05	0.37-0.67	0.54 ± 0.08	0.57	0.31-0.59	0.41 ± 0.08	0.39
金花忍冬 Lonicera chrysantha	0.24-2.42	1.05 ± 0.54	0.98	0.05-0.26	0.10 ± 0.04	0.10	0.20-0.72	0.42 ± 0.13	0.39	0.19-0.71	0.48 ± 0.13	0.49
蒙古荚蒾 Viburnum mongolicum	0.16-2.06	0.67 ± 0.45	0.54	0.04-0.23	0.10 ± 0.04	0.10	0.28-0.76	0.53 ± 0.11	0.54	0.14-0.67	0.37 ± 0.13	0.35
唐古特忍冬 Lonicera tangutica	0.12-1.84	0.67 ± 0.38	0.54	0.06-0.24	0.13 ± 0.04	0.12	0.28-0.65	0.50 ± 0.10	0.52	0.11-0.65	0.37 ± 0.12	0.35
复盆子 Rubus idaeus	0.11-0.54	0.26 ± 0.10	0.23	0.26-0.67	0.44 ± 0.10	0.43	0.17-0.61	0.36 ± 0.12	0.35	0.10-0.35	0.20 ± 0.06	0.19
银露梅 Potentilla glabra	0.29-2.54	0.76 ± 0.46	0.64	0.04-0.21	0.11 ± 0.05	0.09	0.25-0.67	0.49 ± 0.11	0.51	0.22-0.72	0.41 ± 0.12	0.39
山刺玫 Rosa davurica	0.36-1.29	0.71 ± 0.24	0.67	0.04-0.19	0.11 ± 0.04	0.10	0.37-0.62	0.49 ± 0.07	0.48	0.26-0.56	0.40 ± 0.08	0.4
刺果茶藨子 Ribes burejense	0.27-1.89	0.69 ± 0.44	0.52	0.02-0.35	0.13 ± 0.07	0.11	0.24-0.67	0.49 ± 0.12	0.52	0.21-0.65	0.38 ± 0.13	0.34
鬼箭锦鸡儿 Caragana jubata	0.16-1.54	0.60 ± 0.30	0.58	0.08-0.34	0.18 ± 0.07	0.17	0.26-0.68	0.47 ± 0.09	0.46	0.14-0.61	0.36 ± 0.10	0.37
整体 Total		0.61 ± 0.38			0.17 ± 0.11			0.48 ± 0.11			0.35 ± 0.12