Acta Prataculturae Sinica ›› 2023, Vol. 32 ›› Issue (2): 26-34.DOI: 10.11686/cyxb2022064
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Qi WANG1(), Jia-hua ZHENG1, Meng-li ZHAO1, Jun ZHANG2()
Received:
2022-02-14
Revised:
2022-04-05
Online:
2023-02-20
Published:
2022-12-01
Contact:
Jun ZHANG
Qi WANG, Jia-hua ZHENG, Meng-li ZHAO, Jun ZHANG. Effects of mowing intensity on community characteristics and soil physicochemical properties of Stipa grandis steppe, Inner Mongolia, China[J]. Acta Prataculturae Sinica, 2023, 32(2): 26-34.
功能群 Functional group | 物种 Species | 科 Families | 重要值 Important values (%) | |||
---|---|---|---|---|---|---|
CK | LM | MM | HM | |||
多年生禾草 Perennial gramineae | 大针茅S. grandis | 禾本科Poaceae | 41.54±5.18a | 48.76±3.10a | 42.10±5.65a | 46.09±5.51a |
糙隐子草C. squarrosa | 禾本科Poaceae | 12.01±1.86a | 13.45±2.21a | 11.06±3.06a | 9.08±1.81a | |
冰草A. cristatum | 禾本科Poaceae | 2.97±2.97a | 0.77±0.77a | 1.47±1.47a | 0.80±0.80a | |
羊草L. chinensis | 禾本科Poaceae | 18.97±6.99a | 8.45±2.27a | 14.41±3.57a | 12.93±4.86a | |
多年生杂类草 Perennial forbs | 知母A. asphodeloides | 百合科Liliaceae | 21.11±6.27a | 17.17±3.26a | 20.83±3.22a | 18.72±5.11a |
黄囊苔草C. korshinskyi | 莎草科Cyperaceae | 0.94±0.94a | — | 1.04±0.77a | 1.36±0.80a | |
细叶葱Allium tenuissimum | 百合科Liliaceae | — | — | 1.82 | 0.44 | |
双齿葱Allium bidentatum | 百合科Liliaceae | 2.04 | 3.11 | 1.79 | 1.42 | |
野韭Allium ramosum | 百合科Liliaceae | — | 1.09 | — | 0.95 | |
银灰旋花Convolvulus ammannii | 旋花科Convolvulaceae | — | — | 0.53 | — | |
米口袋Gueldenstaedtia verna | 豆科Leguminosae | — | — | — | 0.31 | |
并头黄芩Scutellaria scordifolia | 豆科Leguminosae | — | 1.20 | 0.65 | — | |
一、二年生草本 Annual or biennial herb | 点地梅Androsace umbellata | 报春花科Primulaceae | — | — | 0.36 | — |
地锦Euphorbia humifusa | 大戟科Euphorbiaceae | — | — | 0.10 | — | |
虫实Corispermum hyssopifolium | 藜科Chenopodiaceae | — | — | — | 0.16 | |
刺穗藜Chenopodium aristatum | 藜科Chenopodiaceae | 1.14 | 5.78 | 4.00 | 10.27 | |
猪毛菜Salsola collina | 藜科Chenopodiaceae | — | 1.86 | 0.52 | 0.69 | |
灌木、半灌木 Shrub, subshrub | 冷蒿A. frigida | 菊科Asteraceae | — | — | 1.16 | — |
小叶锦鸡儿Caragana microphylla | 豆科Leguminosae | — | 0.33 | 0.40 | — |
Table 1 Effect of mowing on the important values of S. grandis steppe
功能群 Functional group | 物种 Species | 科 Families | 重要值 Important values (%) | |||
---|---|---|---|---|---|---|
CK | LM | MM | HM | |||
多年生禾草 Perennial gramineae | 大针茅S. grandis | 禾本科Poaceae | 41.54±5.18a | 48.76±3.10a | 42.10±5.65a | 46.09±5.51a |
糙隐子草C. squarrosa | 禾本科Poaceae | 12.01±1.86a | 13.45±2.21a | 11.06±3.06a | 9.08±1.81a | |
冰草A. cristatum | 禾本科Poaceae | 2.97±2.97a | 0.77±0.77a | 1.47±1.47a | 0.80±0.80a | |
羊草L. chinensis | 禾本科Poaceae | 18.97±6.99a | 8.45±2.27a | 14.41±3.57a | 12.93±4.86a | |
多年生杂类草 Perennial forbs | 知母A. asphodeloides | 百合科Liliaceae | 21.11±6.27a | 17.17±3.26a | 20.83±3.22a | 18.72±5.11a |
黄囊苔草C. korshinskyi | 莎草科Cyperaceae | 0.94±0.94a | — | 1.04±0.77a | 1.36±0.80a | |
细叶葱Allium tenuissimum | 百合科Liliaceae | — | — | 1.82 | 0.44 | |
双齿葱Allium bidentatum | 百合科Liliaceae | 2.04 | 3.11 | 1.79 | 1.42 | |
野韭Allium ramosum | 百合科Liliaceae | — | 1.09 | — | 0.95 | |
银灰旋花Convolvulus ammannii | 旋花科Convolvulaceae | — | — | 0.53 | — | |
米口袋Gueldenstaedtia verna | 豆科Leguminosae | — | — | — | 0.31 | |
并头黄芩Scutellaria scordifolia | 豆科Leguminosae | — | 1.20 | 0.65 | — | |
一、二年生草本 Annual or biennial herb | 点地梅Androsace umbellata | 报春花科Primulaceae | — | — | 0.36 | — |
地锦Euphorbia humifusa | 大戟科Euphorbiaceae | — | — | 0.10 | — | |
虫实Corispermum hyssopifolium | 藜科Chenopodiaceae | — | — | — | 0.16 | |
刺穗藜Chenopodium aristatum | 藜科Chenopodiaceae | 1.14 | 5.78 | 4.00 | 10.27 | |
猪毛菜Salsola collina | 藜科Chenopodiaceae | — | 1.86 | 0.52 | 0.69 | |
灌木、半灌木 Shrub, subshrub | 冷蒿A. frigida | 菊科Asteraceae | — | — | 1.16 | — |
小叶锦鸡儿Caragana microphylla | 豆科Leguminosae | — | 0.33 | 0.40 | — |
土壤理化性质Soil physicochemical factors | CK | LM | MM | HM |
---|---|---|---|---|
铵态氮 Ammonium nitrogen (mg·kg-1) | 0.78±0.08a | 0.64±0.07a | 0.83±0.09a | 0.74±0.04a |
硝态氮 Nitrate nitrogen (mg·kg-1) | 3.89±0.27a | 4.59±0.27a | 3.96±0.21a | 4.10±0.23a |
全磷 Total phosphorus (g·kg-1) | 0.25±0.02a | 0.29±0.03a | 0.30±0.03a | 0.29±0.03a |
有效磷 Available phosphorus (mg·kg-1) | 4.14±0.18a | 3.96±0.28a | 3.99±0.14a | 3.75±0.18a |
有机碳 Organic carbon (mg·kg-1) | 15.15±0.43ab | 14.43±0.85b | 16.50±0.42a | 15.55±0.31ab |
全氮 Total nitrogen (g·kg-1) | 1.78±0.03b | 1.79±0.04b | 1.93±0.05a | 1.77±0.05b |
全碳Total carbon (g·kg-1) | 15.33±0.39b | 19.32±1.38a | 20.28±1.13a | 18.85±1.39a |
含水量 Moisture content (%) | 10.98±0.34a | 11.79±0.48a | 10.53±0.32a | 10.92±0.56a |
温度 Soil temperature (℃) | 25.76±0.35a | 25.41±0.32a | 25.57±0.30a | 25.38±0.31a |
pH | 8.04±0.14b | 8.21±0.18ab | 8.63±0.12a | 8.28±0.16ab |
Table 2 Effect of mowing on soil physical and chemical properties
土壤理化性质Soil physicochemical factors | CK | LM | MM | HM |
---|---|---|---|---|
铵态氮 Ammonium nitrogen (mg·kg-1) | 0.78±0.08a | 0.64±0.07a | 0.83±0.09a | 0.74±0.04a |
硝态氮 Nitrate nitrogen (mg·kg-1) | 3.89±0.27a | 4.59±0.27a | 3.96±0.21a | 4.10±0.23a |
全磷 Total phosphorus (g·kg-1) | 0.25±0.02a | 0.29±0.03a | 0.30±0.03a | 0.29±0.03a |
有效磷 Available phosphorus (mg·kg-1) | 4.14±0.18a | 3.96±0.28a | 3.99±0.14a | 3.75±0.18a |
有机碳 Organic carbon (mg·kg-1) | 15.15±0.43ab | 14.43±0.85b | 16.50±0.42a | 15.55±0.31ab |
全氮 Total nitrogen (g·kg-1) | 1.78±0.03b | 1.79±0.04b | 1.93±0.05a | 1.77±0.05b |
全碳Total carbon (g·kg-1) | 15.33±0.39b | 19.32±1.38a | 20.28±1.13a | 18.85±1.39a |
含水量 Moisture content (%) | 10.98±0.34a | 11.79±0.48a | 10.53±0.32a | 10.92±0.56a |
温度 Soil temperature (℃) | 25.76±0.35a | 25.41±0.32a | 25.57±0.30a | 25.38±0.31a |
pH | 8.04±0.14b | 8.21±0.18ab | 8.63±0.12a | 8.28±0.16ab |
土壤理化性质 Soil physicochemical factors | 解释率 Explains (%) | P |
---|---|---|
NO3--N | 37.7 | 0.010 |
TC | 19.7 | 0.118 |
NH4+-N | 7.4 | 0.506 |
pH | 10.2 | 0.430 |
SM | 6.8 | 0.566 |
TP | 5.9 | 0.606 |
ST | 4.3 | 0.758 |
SOC | 3.6 | 0.802 |
TN | 2.3 | 0.906 |
AP | 2.1 | 0.940 |
Table 3 Contribution of soil physicochemical factors to community characteristics
土壤理化性质 Soil physicochemical factors | 解释率 Explains (%) | P |
---|---|---|
NO3--N | 37.7 | 0.010 |
TC | 19.7 | 0.118 |
NH4+-N | 7.4 | 0.506 |
pH | 10.2 | 0.430 |
SM | 6.8 | 0.566 |
TP | 5.9 | 0.606 |
ST | 4.3 | 0.758 |
SOC | 3.6 | 0.802 |
TN | 2.3 | 0.906 |
AP | 2.1 | 0.940 |
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