Species composition and community structure of the Yulongxueshan (Jade Dragon Snow Mountains) forest dynamics plot in the cold tem- perate spruce-fir forest, Southwest China

doi:10.17520/biods.2016274

Abstract

Abstract:

Spruce-fir forests are one of the best protected areas of forest vegetation occurring on the eastern slope of the Yulongxueshan (Jade Dragon Snow Mountains). To further understand the spruce-fir species composition and community structure, a 25 ha (500 m × 500 m) forest dynamics plot was established in the Yulongxueshan Provincial Nature Reserve by the Kunming Institute of Botany, Chinese Academy of Sciences and Administration Bureau of Yulongxueshan Provincial Nature Reserve from 2012 to 2014, according to the standards from the Center for Tropical Forest Science (CTFS). In this study, we analyzed the flora, community composition, structure, DBH size-classes and spatial distribution based data collected from all woody (excluding bamboo) plants with DBH ≥ 1 cm. Our results demonstrated that a total of 47,751 free-standing individuals with DBH ≥ 1 cm were recorded, belonging to 62 species, 41 genera and 26 families. The north temperate distribution plant contributed to the most significant floristic characteristics. In the plot, the 18 species with importance value (IV) ≥ 1 contributed 90.24% to the IV of the community. Based on the vertical structure of plant heights, the community was divided into four layers. The dominant species in the canopy layer were Abies forrestii, Picea likiangensis and Quercus guajavifolia, which exhibited a pattern of ridge type and a reverse-J shape in DBH size-classes structure and strong regenerating capacity. Gamblea ciliata var. evodiifolia, Acer pectinatum and Padus brachypoda occupied the sub-canopy layer, and could be the constructive community species in some fragmented habitats. These species were lacking small DBH trees, so their populations are predicted to decline in the future. Sorbus prattii, Viburnum betulifolium and Rhododendron yunnanense dominated the sub-tree layer. In the shrub layer, Berberis fallax consisted of the largest number of individuals and accounting for 59.51% of the total number of individuals; together with the highest importance value, accounting for 22.75% of the total IV, and DBH size-class distribution in a “L” shape.

http://jtp.cnki.net/bilingual/detail/html/SWDY201703006

Key words: biodiversity, DBH size-classes structure, flora, spatial pattern

Hua Huang, Zhifa Chen, Detuan Liu, Guoxing He, Ronghua He, Dezhu Li, Kun Xu. Species composition and community structure of the Yulongxueshan (Jade Dragon Snow Mountains) forest dynamics plot in the cold tem- perate spruce-fir forest, Southwest China[J]. Biodiv Sci, 2017, 25(3): 255-264.

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URL: https://www.biodiversity-science.net/EN/10.17520/biods.2016274

https://www.biodiversity-science.net/EN/Y2017/V25/I3/255

Figures/Tables 9

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科 Family	属数 No. of genus	种数 No. of species	多度 Abundance	胸高断面积 Basal area (m²)	重要值 Importance values
小檗科 Berberidaceae	1	3	28,697	5.05	23.34
松科 Pinaceae	4	4	5,837	612.32	26.02
忍冬科 Caprifoliaceae	3	7	2,888	7.46	8.21
蔷薇科 Rosaceae	7	12	2,014	47.57	7.67
壳斗科 Fagaceae	1	1	1,324	323.03	12.04
槭树科 Aceraceae	1	4	1,315	67.32	5.68
杜鹃花科 Ericaceae	1	5	1,265	17.33	2.83
五加科 Araliaceae	2	2	1,243	67.50	4.93
冬青科 Aquifoliaceae	1	1	656	0.32	1.40
清风藤科 Sabiaceae	2	2	605	0.77	1.48
绣球花科 Hydrangeaceae	1	1	528	2.51	1.70
樟科 Lauraceae	1	2	402	3.39	1.40
卫矛科 Celastraceae	1	2	374	1.20	1.31
茶藨子科 Grossulariaceae	1	2	277	0.16	0.84
唇形科 Labiatae	1	1	130	0.02	0.35
木樨科 Oleaceae	2	2	53	0.49	0.23
五味子科 Schisandraceae	1	1	52	0.03	0.14
红豆杉科 Taxaceae	1	1	40	0.72	0.19
毛茛科 Ranunculaceae	1	1	21	0.00	0.11
山茱萸科 Cornaceae	2	2	8	0.11	0.04
杨柳科 Salicaceae	1	1	5	0.03	0.02
柏科 Cupressaceae	1	1	4	0.01	0.02
芍药科 Paeoniaceae	1	1	4	0.00	0.02
菊科 Compositae	1	1	4	0.00	0.01
旌节花科 Stachyuraceae	1	1	4	0.04	0.01
椴树科 Tiliaceae	1	1	1	0.12	0.01
总计 Total	41	62	47,751	1,157.47	100

科 Family	属数 No. of genus	种数 No. of species	多度 Abundance	胸高断面积 Basal area (m²)	重要值 Importance values
小檗科 Berberidaceae	1	3	28,697	5.05	23.34
松科 Pinaceae	4	4	5,837	612.32	26.02
忍冬科 Caprifoliaceae	3	7	2,888	7.46	8.21
蔷薇科 Rosaceae	7	12	2,014	47.57	7.67
壳斗科 Fagaceae	1	1	1,324	323.03	12.04
槭树科 Aceraceae	1	4	1,315	67.32	5.68
杜鹃花科 Ericaceae	1	5	1,265	17.33	2.83
五加科 Araliaceae	2	2	1,243	67.50	4.93
冬青科 Aquifoliaceae	1	1	656	0.32	1.40
清风藤科 Sabiaceae	2	2	605	0.77	1.48
绣球花科 Hydrangeaceae	1	1	528	2.51	1.70
樟科 Lauraceae	1	2	402	3.39	1.40
卫矛科 Celastraceae	1	2	374	1.20	1.31
茶藨子科 Grossulariaceae	1	2	277	0.16	0.84
唇形科 Labiatae	1	1	130	0.02	0.35
木樨科 Oleaceae	2	2	53	0.49	0.23
五味子科 Schisandraceae	1	1	52	0.03	0.14
红豆杉科 Taxaceae	1	1	40	0.72	0.19
毛茛科 Ranunculaceae	1	1	21	0.00	0.11
山茱萸科 Cornaceae	2	2	8	0.11	0.04
杨柳科 Salicaceae	1	1	5	0.03	0.02
柏科 Cupressaceae	1	1	4	0.01	0.02
芍药科 Paeoniaceae	1	1	4	0.00	0.02
菊科 Compositae	1	1	4	0.00	0.01
旌节花科 Stachyuraceae	1	1	4	0.04	0.01
椴树科 Tiliaceae	1	1	1	0.12	0.01
总计 Total	41	62	47,751	1,157.47	100

分布区类型 Areal types	科数 No. of family	属数 No. of genera
1 世界广布 Cosmopolitan	6	-
2 泛热带 Pantropic	3	1
3 东亚(热带、亚热带)及热带南美间断 Tropical & Subtropical East Asia & (South) Tropical America disjuncted	2	2
4 旧世界热带 Old World Tropics	-	1
5 热带亚洲至热带大洋洲 Tropical Asia to Tropical Australasia Oceania	-	-
6 热带亚洲至热带非洲 Tropical Asia to Tropical Africa	1	-
7 热带东南亚至印度-马来, 太平洋诸岛(热带亚洲) Tropical Southeast Asia + Indo-Malaya + Tropical South & Southwest Pacific Island (Tropical Asia)	1	1
8 北温带 North Temperate	11	22
9 东亚及北美间断 East Asia & North America disjuncted	1	3
10 旧世界温带 Old World Temperate	-	3
11 温带亚洲 Temperate Asia	-	-
12 地中海、西亚至中亚 Mediterranean, West to Central Asia	-	-
13 中亚 Central Asia	-	-
14 东亚 East Asia	1	4
15 中国特有 Endemic to China	-	1
16 南半球热带以外间断或星散分布 Extratropical South Hemisphere disjuncted or dispersed	-	-
17 热带非洲-热带美洲间断 Tropical Africa & Tropical America disjuncted	-	-
18 泛南极 Holantarctic	-	-
合计 Total	26	41

分布区类型 Areal types	科数 No. of family	属数 No. of genera
1 世界广布 Cosmopolitan	6	-
2 泛热带 Pantropic	3	1
3 东亚(热带、亚热带)及热带南美间断 Tropical & Subtropical East Asia & (South) Tropical America disjuncted	2	2
4 旧世界热带 Old World Tropics	-	1
5 热带亚洲至热带大洋洲 Tropical Asia to Tropical Australasia Oceania	-	-
6 热带亚洲至热带非洲 Tropical Asia to Tropical Africa	1	-
7 热带东南亚至印度-马来, 太平洋诸岛(热带亚洲) Tropical Southeast Asia + Indo-Malaya + Tropical South & Southwest Pacific Island (Tropical Asia)	1	1
8 北温带 North Temperate	11	22
9 东亚及北美间断 East Asia & North America disjuncted	1	3
10 旧世界温带 Old World Temperate	-	3
11 温带亚洲 Temperate Asia	-	-
12 地中海、西亚至中亚 Mediterranean, West to Central Asia	-	-
13 中亚 Central Asia	-	-
14 东亚 East Asia	1	4
15 中国特有 Endemic to China	-	1
16 南半球热带以外间断或星散分布 Extratropical South Hemisphere disjuncted or dispersed	-	-
17 热带非洲-热带美洲间断 Tropical Africa & Tropical America disjuncted	-	-
18 泛南极 Holantarctic	-	-
合计 Total	26	41

物种 Species	多度 Abundance	相对频度 Relative frequency	胸高断面积 Basal area (m²)	胸径 DBH (mean ± SE) (cm)	重要值 Importance values
假小檗 Berberis fallax	28,416	8.31	4.98	1.44 ± 0.00	22.75
川滇冷杉 Abies forrestii	5,207	7.78	379.53	19.63 ± 0.32	17.16
帽斗栎 Quercus guajavifolia	1,324	5.45	323.03	45.09 ± 0.90	12.04
丽江云杉 Picea likiangensis	596	4.78	225.75	50.84 ± 1.94	8.51
吴茱萸五加 Gamblea ciliata var. evodiifolia	1,065	5.84	66.66	25.74 ± 0.36	4.61
篦齿槭 Acer pectinatum	958	5.32	50.16	23.30 ± 0.36	3.89
西康花楸 Sorbus prattii	915	5.80	12.36	11.78 ± 0.19	2.93
桦叶荚蒾 Viburnum betulifolium	1,114	5.91	1.53	3.78 ± 0.05	2.79
云南杜鹃 Rhododendron yunnanense	1,162	3.47	16.73	10.95 ± 0.23	2.45
短梗稠李 Padus brachypoda	328	2.74	25.92	28.46 ± 0.77	1.89
唐古特忍冬 Lonicera tangutica	671	4.02	0.54	2.78 ± 0.06	1.82
丽江山梅花 Philadelphus calvescens	528	3.77	2.51	7.08 ± 0.14	1.70
陷脉冬青 Ilex delavayi	656	2.79	0.32	2.20 ± 0.05	1.40
阔叶清风藤 Sabia yunnanensis subsp. latifolia	581	2.82	0.39	2.63 ± 0.05	1.36
高山木姜子 Litsea chunii	372	2.89	2.85	8.56 ± 0.26	1.30
湖北花楸 Sorbus hupehensis	309	2.67	6.43	14.65 ± 0.40	1.29
紫花卫矛 Euonymus porphyreus	366	2.95	0.91	5.05 ± 0.13	1.27
华西忍冬 Lonicera webbiana	265	2.59	1.38	6.94 ± 0.26	1.09
云南双盾木 Dipelta yunnanensis	385	1.88	3.19	9.64 ± 0.18	0.99
其他 Others	2,533	18.20	32.31	-	8.77
总计 Total	47,751	100	1,157.47	-	100