Acta Prataculturae Sinica ›› 2025, Vol. 34 ›› Issue (10): 1-15.DOI: 10.11686/cyxb2024477
Ze-hua LIU1,2,3(
), Lin CHEN1,2,3(
), Ya-qi ZHANG4, Jin-xiao LONG4, Xue-bin LI4, Dan-bo PANG1,2,3
Received:2024-11-26
Revised:2025-01-23
Online:2025-10-20
Published:2025-07-11
Contact:
Lin CHEN
Ze-hua LIU, Lin CHEN, Ya-qi ZHANG, Jin-xiao LONG, Xue-bin LI, Dan-bo PANG. The impact of shrub encroachment on species niches and interspecific associations of the Artemisia scoparia community in desert grassland[J]. Acta Prataculturae Sinica, 2025, 34(10): 1-15.
生活型 Life form | 物种 Species | 物种缩写 Species abbreviation | 科名 Family | 重要值Importance value | |||
|---|---|---|---|---|---|---|---|
| HD | MD | LD | CK | ||||
一年生 Annual | 猪毛菜S. collina | Sc | 藜科Chenopodiaceae | 0.45 | 0.38 | 0.23 | 0.25 |
| 狗尾草Setaria viridis | Sv | 禾本科Poaceae | 0.10 | 0.04 | - | 0.04 | |
| 尖头叶藜Chenopodium acuminatum | Ca | 苋科Amaranthaceae | - | 0.03 | - | 0.13 | |
| 雾冰藜B. dasyphylla | Bd | 苋科Amaranthaceae | 0.31 | 0.11 | 0.23 | 0.05 | |
| 蒺藜Tribulus terrester | Tt | 蒺藜科Zygophyllaceae | - | 0.05 | 0.04 | 0.07 | |
| 地锦草Euphorbia humifusa | Eh | 大戟科Euphorbiaceae | 0.07 | 0.02 | 0.03 | 0.04 | |
一年生及二年生 Annual and biennial | 猪毛蒿A. scoparia | As | 菊科Asteraceae | 0.17 | 0.21 | 0.39 | 0.26 |
| 白花草木樨Melilotus albus | Ma | 豆科Fabaceae | - | - | 0.22 | 0.14 | |
多年生 Perennial | 鹤虱Lappula myosotis | Lm | 紫草科Boraginaceae | 0.10 | - | - | - |
| 银灰旋花C. ammannii | Cam | 旋花科Convolvulaceae | 0.07 | 0.09 | 0.05 | 0.13 | |
| 沙葱Allium mongolicum | Am | 百合科Liliaceae | 0.06 | - | - | - | |
| 地黄Rehmannia glutinosa | Rg | 玄参科Scrophulariaceae | 0.02 | - | - | - | |
| 针茅S. capillata | Sca | 禾本科Poaceae | 0.09 | - | 0.06 | 0.12 | |
| 角蒿Incarvillea sinensis | Is | 紫葳科Bignoniaceae | - | 0.13 | 0.12 | - | |
| 鹅绒藤Cynanchum chinense | Cc | 萝藦科Asclepiadaceae | - | - | 0.08 | - | |
| 骆驼蓬Peganum harmala | Ph | 白刺科Nitrariaceae | - | - | 0.07 | 0.24 | |
| 糙隐子草Cleistogenes squarrosa | Cs | 禾本科Poaceae | - | - | - | 0.10 | |
半灌木 Subshrub | 牛枝子L. potaninii | Lp | 豆科Fabaceae | 0.09 | 0.08 | 0.11 | 0.28 |
| 猫头刺O. aciphylla | Oa | 豆科Fabaceae | - | 0.20 | - | 0.11 | |
| 老瓜头C. komarovii | Ck | 萝藦科Asclepiadaceae | - | 0.18 | - | 0.22 | |
Table 1 Species composition and important values of the A. scoparia community in different shrub plots
生活型 Life form | 物种 Species | 物种缩写 Species abbreviation | 科名 Family | 重要值Importance value | |||
|---|---|---|---|---|---|---|---|
| HD | MD | LD | CK | ||||
一年生 Annual | 猪毛菜S. collina | Sc | 藜科Chenopodiaceae | 0.45 | 0.38 | 0.23 | 0.25 |
| 狗尾草Setaria viridis | Sv | 禾本科Poaceae | 0.10 | 0.04 | - | 0.04 | |
| 尖头叶藜Chenopodium acuminatum | Ca | 苋科Amaranthaceae | - | 0.03 | - | 0.13 | |
| 雾冰藜B. dasyphylla | Bd | 苋科Amaranthaceae | 0.31 | 0.11 | 0.23 | 0.05 | |
| 蒺藜Tribulus terrester | Tt | 蒺藜科Zygophyllaceae | - | 0.05 | 0.04 | 0.07 | |
| 地锦草Euphorbia humifusa | Eh | 大戟科Euphorbiaceae | 0.07 | 0.02 | 0.03 | 0.04 | |
一年生及二年生 Annual and biennial | 猪毛蒿A. scoparia | As | 菊科Asteraceae | 0.17 | 0.21 | 0.39 | 0.26 |
| 白花草木樨Melilotus albus | Ma | 豆科Fabaceae | - | - | 0.22 | 0.14 | |
多年生 Perennial | 鹤虱Lappula myosotis | Lm | 紫草科Boraginaceae | 0.10 | - | - | - |
| 银灰旋花C. ammannii | Cam | 旋花科Convolvulaceae | 0.07 | 0.09 | 0.05 | 0.13 | |
| 沙葱Allium mongolicum | Am | 百合科Liliaceae | 0.06 | - | - | - | |
| 地黄Rehmannia glutinosa | Rg | 玄参科Scrophulariaceae | 0.02 | - | - | - | |
| 针茅S. capillata | Sca | 禾本科Poaceae | 0.09 | - | 0.06 | 0.12 | |
| 角蒿Incarvillea sinensis | Is | 紫葳科Bignoniaceae | - | 0.13 | 0.12 | - | |
| 鹅绒藤Cynanchum chinense | Cc | 萝藦科Asclepiadaceae | - | - | 0.08 | - | |
| 骆驼蓬Peganum harmala | Ph | 白刺科Nitrariaceae | - | - | 0.07 | 0.24 | |
| 糙隐子草Cleistogenes squarrosa | Cs | 禾本科Poaceae | - | - | - | 0.10 | |
半灌木 Subshrub | 牛枝子L. potaninii | Lp | 豆科Fabaceae | 0.09 | 0.08 | 0.11 | 0.28 |
| 猫头刺O. aciphylla | Oa | 豆科Fabaceae | - | 0.20 | - | 0.11 | |
| 老瓜头C. komarovii | Ck | 萝藦科Asclepiadaceae | - | 0.18 | - | 0.22 | |
物种 Species | Levins生态位宽度Levins niche width | Shannon生态位宽度Shannon niche width | ||||||
|---|---|---|---|---|---|---|---|---|
| HD | MD | LD | CK | HD | MD | LD | CK | |
| 猪毛蒿A.scoparia | 3.88 | 4.36 | 4.77 | 3.91 | 1.46 | 1.58 | 1.54 | 1.46 |
| 猪毛菜S. collina | 4.67 | 4.31 | 4.16 | 3.99 | 1.57 | 1.51 | 1.53 | 1.39 |
| 狗尾草S. viridis | 2.23 | 2.91 | - | 1.47 | 0.94 | 1.21 | - | 0.50 |
| 针茅S. capillata | 1.60 | - | 1.00 | 1.00 | 0.56 | - | 0.00 | 0.00 |
| 牛枝子L. potaninii | 1.25 | 2.27 | 1.00 | 1.00 | 0.35 | 0.95 | 0.00 | 0.00 |
| 鹤虱L. myosotis | 1.80 | - | - | - | 0.64 | - | - | - |
| 尖头叶藜C. acuminatum | 1.00 | 1.00 | - | 2.56 | 0.00 | 0.00 | - | 1.07 |
| 银灰旋花C. ammannii | 1.00 | 1.91 | 2.00 | 1.20 | 0.00 | 0.79 | 0.69 | 0.31 |
| 地锦草E. humifusa | 1.00 | 3.46 | 2.79 | 2.66 | 0.00 | 1.41 | 1.06 | 1.12 |
| 沙葱A. mongolicum | 1.92 | - | - | - | 0.67 | - | - | - |
| 雾冰藜B. dasyphylla | 1.96 | 3.52 | 2.53 | 1.60 | 0.68 | 1.32 | 1.09 | 0.56 |
| 地黄R. glutinosa | 1.00 | - | - | - | 0.00 | - | - | - |
| 蒺藜T. terrester | - | 2.58 | 2.09 | 1.72 | - | 1.00 | 0.89 | 0.75 |
| 角蒿I. sinensis | - | 2.00 | 1.00 | - | - | 0.69 | 0.00 | - |
| 猫头刺O. aciphylla | - | 1.00 | - | 1.00 | - | 0.00 | - | 0.00 |
| 老瓜头C. komarovii | - | 1.00 | - | 1.00 | - | 0.00 | - | 0.00 |
| 鹅绒藤C. chinense | - | - | 1.00 | - | - | - | 0.00 | - |
| 骆驼蓬P. harmala | - | - | 1.00 | 1.00 | - | - | 0.00 | 0.00 |
| 白花草木樨M. albus | - | - | 1.00 | 2.00 | - | - | 0.00 | 0.69 |
| 糙隐子草C. squarrosa | - | - | - | 1.00 | - | - | - | 0.00 |
Table 2 Niche widths of species of the A. scoparia community in different shrub plots
物种 Species | Levins生态位宽度Levins niche width | Shannon生态位宽度Shannon niche width | ||||||
|---|---|---|---|---|---|---|---|---|
| HD | MD | LD | CK | HD | MD | LD | CK | |
| 猪毛蒿A.scoparia | 3.88 | 4.36 | 4.77 | 3.91 | 1.46 | 1.58 | 1.54 | 1.46 |
| 猪毛菜S. collina | 4.67 | 4.31 | 4.16 | 3.99 | 1.57 | 1.51 | 1.53 | 1.39 |
| 狗尾草S. viridis | 2.23 | 2.91 | - | 1.47 | 0.94 | 1.21 | - | 0.50 |
| 针茅S. capillata | 1.60 | - | 1.00 | 1.00 | 0.56 | - | 0.00 | 0.00 |
| 牛枝子L. potaninii | 1.25 | 2.27 | 1.00 | 1.00 | 0.35 | 0.95 | 0.00 | 0.00 |
| 鹤虱L. myosotis | 1.80 | - | - | - | 0.64 | - | - | - |
| 尖头叶藜C. acuminatum | 1.00 | 1.00 | - | 2.56 | 0.00 | 0.00 | - | 1.07 |
| 银灰旋花C. ammannii | 1.00 | 1.91 | 2.00 | 1.20 | 0.00 | 0.79 | 0.69 | 0.31 |
| 地锦草E. humifusa | 1.00 | 3.46 | 2.79 | 2.66 | 0.00 | 1.41 | 1.06 | 1.12 |
| 沙葱A. mongolicum | 1.92 | - | - | - | 0.67 | - | - | - |
| 雾冰藜B. dasyphylla | 1.96 | 3.52 | 2.53 | 1.60 | 0.68 | 1.32 | 1.09 | 0.56 |
| 地黄R. glutinosa | 1.00 | - | - | - | 0.00 | - | - | - |
| 蒺藜T. terrester | - | 2.58 | 2.09 | 1.72 | - | 1.00 | 0.89 | 0.75 |
| 角蒿I. sinensis | - | 2.00 | 1.00 | - | - | 0.69 | 0.00 | - |
| 猫头刺O. aciphylla | - | 1.00 | - | 1.00 | - | 0.00 | - | 0.00 |
| 老瓜头C. komarovii | - | 1.00 | - | 1.00 | - | 0.00 | - | 0.00 |
| 鹅绒藤C. chinense | - | - | 1.00 | - | - | - | 0.00 | - |
| 骆驼蓬P. harmala | - | - | 1.00 | 1.00 | - | - | 0.00 | 0.00 |
| 白花草木樨M. albus | - | - | 1.00 | 2.00 | - | - | 0.00 | 0.69 |
| 糙隐子草C. squarrosa | - | - | - | 1.00 | - | - | - | 0.00 |
处理 Treatments | 方差比率 Variance ratio (VR) | 检验统计量 Test statistic (W) | 卡方临界值 Threshold values | 检验结果 Results |
|---|---|---|---|---|
| 重度灌丛化HD | 0.55 | 2.74 | (1.15,11.07) | 不显著负联结Not significant negative correlation |
| 中度灌丛化MD | 1.68 | 8.39 | (1.15,11.07) | 不显著正联结Not significant positive correlation |
| 轻度灌丛化LD | 0.44 | 2.22 | (1.15,11.07) | 不显著负联结Not significant negative correlation |
| 未灌丛化CK | 0.51 | 2.57 | (1.15,11.07) | 不显著负联结Not significant negative correlation |
Table 3 The overall species associations of the A. scoparia community in different shrub plots
处理 Treatments | 方差比率 Variance ratio (VR) | 检验统计量 Test statistic (W) | 卡方临界值 Threshold values | 检验结果 Results |
|---|---|---|---|---|
| 重度灌丛化HD | 0.55 | 2.74 | (1.15,11.07) | 不显著负联结Not significant negative correlation |
| 中度灌丛化MD | 1.68 | 8.39 | (1.15,11.07) | 不显著正联结Not significant positive correlation |
| 轻度灌丛化LD | 0.44 | 2.22 | (1.15,11.07) | 不显著负联结Not significant negative correlation |
| 未灌丛化CK | 0.51 | 2.57 | (1.15,11.07) | 不显著负联结Not significant negative correlation |
Fig.6 The interspecific association of species of the A. scoparia community in different shrub plots Spearman rank correlation test semi-matrix diagram
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