Acta Prataculturae Sinica ›› 2022, Vol. 31 ›› Issue (6): 79-90.DOI: 10.11686/cyxb2021186
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Peng-bo ZHAO1,3(), Kai-yang QIU1,3(), Ying-zhong XIE1,3, Wang-suo LIU1,3, Xiao-wei LI1,3, Lin CHEN2,3, Ji-fei WANG4, Wen-fen MENG1,3, Ye-yun HUANG1,3, Xiao-cong LI1, Hao-nan YANG1
Received:
2021-05-07
Revised:
2021-06-16
Online:
2022-06-20
Published:
2022-05-11
Contact:
Kai-yang QIU
Peng-bo ZHAO, Kai-yang QIU, Ying-zhong XIE, Wang-suo LIU, Xiao-wei LI, Lin CHEN, Ji-fei WANG, Wen-fen MENG, Ye-yun HUANG, Xiao-cong LI, Hao-nan YANG. Change in plant community characteristics along altitudinal gradients in the main browsing areas of Pseudois nayaur in the Helan Mountains[J]. Acta Prataculturae Sinica, 2022, 31(6): 79-90.
研究区编号 Research area number | 植被类型 Vegetation types | 海拔 Altitude |
---|---|---|
A | 荒漠草原Desert steppe | 1100~1500 m |
B | 山地疏林草原Mountain sparse forest grassland | 1500~2000 m |
C | 山地针叶林Mountain coniferous forest | 2000~2500 m |
D | 高山-亚高山灌丛草甸Alpine-subalpine shrub meadow | >2500 m |
Table 1 Plant community types and the altitude of research areas
研究区编号 Research area number | 植被类型 Vegetation types | 海拔 Altitude |
---|---|---|
A | 荒漠草原Desert steppe | 1100~1500 m |
B | 山地疏林草原Mountain sparse forest grassland | 1500~2000 m |
C | 山地针叶林Mountain coniferous forest | 2000~2500 m |
D | 高山-亚高山灌丛草甸Alpine-subalpine shrub meadow | >2500 m |
单科所含种数范围 Range of number of species in each families | 科数 Number of families | 占总科数比例 Percentage of total families (%) | 属数 Number of genera | 占总属数比例 Percentage of total genera (%) | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
---|---|---|---|---|---|---|
≥20 | 1 | 3.33 | 10 | 16.13 | 20 | 22.98 |
10~19 | 2 | 6.67 | 12 | 19.35 | 21 | 24.14 |
6~9 | 1 | 3.33 | 4 | 6.45 | 7 | 8.05 |
2~5 | 8 | 26.67 | 18 | 29.03 | 21 | 24.14 |
1 | 18 | 60.00 | 18 | 29.03 | 18 | 20.69 |
总计Total | 30 | 100.00 | 62 | 100.00 | 87 | 100.00 |
Table 2 Species number of plant community in main active areas of P. nayaur in Helan Mountains
单科所含种数范围 Range of number of species in each families | 科数 Number of families | 占总科数比例 Percentage of total families (%) | 属数 Number of genera | 占总属数比例 Percentage of total genera (%) | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
---|---|---|---|---|---|---|
≥20 | 1 | 3.33 | 10 | 16.13 | 20 | 22.98 |
10~19 | 2 | 6.67 | 12 | 19.35 | 21 | 24.14 |
6~9 | 1 | 3.33 | 4 | 6.45 | 7 | 8.05 |
2~5 | 8 | 26.67 | 18 | 29.03 | 21 | 24.14 |
1 | 18 | 60.00 | 18 | 29.03 | 18 | 20.69 |
总计Total | 30 | 100.00 | 62 | 100.00 | 87 | 100.00 |
研究区 Research area | 科数 Number of families | 属数 Number of genera | 种数 Number of species |
---|---|---|---|
A | 9b | 16c | 20c |
B | 16a | 29a | 35b |
C | 15a | 21b | 24c |
D | 16a | 32a | 40a |
Table 3 Number of families, genera, and species of plants at different altitudes in main active areas of P. nayaur in Helan Mountains
研究区 Research area | 科数 Number of families | 属数 Number of genera | 种数 Number of species |
---|---|---|---|
A | 9b | 16c | 20c |
B | 16a | 29a | 35b |
C | 15a | 21b | 24c |
D | 16a | 32a | 40a |
研究区 Research area | 草本 Herb | 灌木 Shrub | ||
---|---|---|---|---|
物种名Species | 重要值Importance value | 物种名Species | 重要值Importance value | |
A | 短花针茅S. breviflora | 0.332 | 刺旋花C. tragacanthoides | 0.462 |
无芒隐子草C. songorica | 0.200 | 松叶猪毛菜S. laricifolia | 0.434 | |
猪毛蒿Artemisia scoparia | 0.110 | 狭叶锦鸡儿Caragana stenophylla | 0.066 | |
B | 针茅S. capillata | 0.327 | 蒙古扁桃A. mongolica | 0.407 |
苔草Carex spp. | 0.093 | 小叶金露梅P. parvifolia | 0.175 | |
冰草Agropyron cristatum | 0.075 | 猫头刺O. aciphylla | 0.109 | |
C | 苔草Carex spp. | 0.428 | - | - |
真穗披碱草E. gmelinii | 0.183 | - | - | |
小红菊C. chanetii | 0.126 | - | - | |
D | 苔草Carex spp. | 0.226 | 小叶金露梅P. parvifolia | 0.508 |
硬质早熟禾Poa sphondylodes | 0.088 | 银露梅P. glabra | 0.402 | |
冰草A. cristatum | 0.077 | 小叶忍冬Lonicera microphylla | 0.052 |
Table 4 Dominant species and their importance values of different plant community types in main active areas of P. nayaur in Helan Mountains
研究区 Research area | 草本 Herb | 灌木 Shrub | ||
---|---|---|---|---|
物种名Species | 重要值Importance value | 物种名Species | 重要值Importance value | |
A | 短花针茅S. breviflora | 0.332 | 刺旋花C. tragacanthoides | 0.462 |
无芒隐子草C. songorica | 0.200 | 松叶猪毛菜S. laricifolia | 0.434 | |
猪毛蒿Artemisia scoparia | 0.110 | 狭叶锦鸡儿Caragana stenophylla | 0.066 | |
B | 针茅S. capillata | 0.327 | 蒙古扁桃A. mongolica | 0.407 |
苔草Carex spp. | 0.093 | 小叶金露梅P. parvifolia | 0.175 | |
冰草Agropyron cristatum | 0.075 | 猫头刺O. aciphylla | 0.109 | |
C | 苔草Carex spp. | 0.428 | - | - |
真穗披碱草E. gmelinii | 0.183 | - | - | |
小红菊C. chanetii | 0.126 | - | - | |
D | 苔草Carex spp. | 0.226 | 小叶金露梅P. parvifolia | 0.508 |
硬质早熟禾Poa sphondylodes | 0.088 | 银露梅P. glabra | 0.402 | |
冰草A. cristatum | 0.077 | 小叶忍冬Lonicera microphylla | 0.052 |
研究区 Research areas | 物种丰富度指数 Richness index | Pielou均匀度指数 Pielou evenness index | Shannon-Wiener多样性指数 Shannon-Wiener diversity index | Simpson优势度指数 Simpson dominance index | ||||
---|---|---|---|---|---|---|---|---|
草本Herb | 灌木Shrub | 草本Herb | 灌木Shrub | 草本Herb | 灌木Shrub | 草本Herb | 灌木Shrub | |
A | 9±1.47c | 3±0.84b | 0.80±0.04ab | 0.93±0.06a | 1.78±0.15bc | 0.91±0.24ab | 0.78±0.03a | 0.57±0.08ab |
B | 14±2.80b | 4±1.14a | 0.68±0.10ab | 0.87±0.10a | 1.79±0.28b | 1.28±0.31a | 0.79±0.68a | 0.67±0.11a |
C | 8±1.79c | - | 0.65±0.13b | - | 1.33±0.28c | - | 0.69±0.18a | - |
D | 20±3.07a | 2±0.55b | 0.82±0.04a | 0.78±0.14a | 2.45±0.05a | 0.72±0.28b | 0.88±0.01a | 0.41±0.23b |
Table 5 Response of vegetation community diversity to altitudinal gradient in main active areas of P. nayaur in Helan Mountains
研究区 Research areas | 物种丰富度指数 Richness index | Pielou均匀度指数 Pielou evenness index | Shannon-Wiener多样性指数 Shannon-Wiener diversity index | Simpson优势度指数 Simpson dominance index | ||||
---|---|---|---|---|---|---|---|---|
草本Herb | 灌木Shrub | 草本Herb | 灌木Shrub | 草本Herb | 灌木Shrub | 草本Herb | 灌木Shrub | |
A | 9±1.47c | 3±0.84b | 0.80±0.04ab | 0.93±0.06a | 1.78±0.15bc | 0.91±0.24ab | 0.78±0.03a | 0.57±0.08ab |
B | 14±2.80b | 4±1.14a | 0.68±0.10ab | 0.87±0.10a | 1.79±0.28b | 1.28±0.31a | 0.79±0.68a | 0.67±0.11a |
C | 8±1.79c | - | 0.65±0.13b | - | 1.33±0.28c | - | 0.69±0.18a | - |
D | 20±3.07a | 2±0.55b | 0.82±0.04a | 0.78±0.14a | 2.45±0.05a | 0.72±0.28b | 0.88±0.01a | 0.41±0.23b |
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