草业学报 ›› 2025, Vol. 34 ›› Issue (2): 109-122.DOI: 10.11686/cyxb2024129
• 研究论文 • 上一篇
吕娜1(), 高吉喜1(), 李政海2, 尤春赫1, 刘晓曼1, 张彪3, 莫宇2,4, 朱萨宁5, 彭阳1, 杨雪6
收稿日期:
2024-04-18
修回日期:
2024-06-05
出版日期:
2025-02-20
发布日期:
2024-11-27
通讯作者:
高吉喜
作者简介:
E-mail: gjx@nies.org基金资助:
Na LYU1(), Ji-xi GAO1(), Zheng-hai LI2, Chun-he YOU1, Xiao-man LIU1, Biao ZHANG3, Yu MO2,4, Sa-ning ZHU5, Yang PENG1, Xue YANG6
Received:
2024-04-18
Revised:
2024-06-05
Online:
2025-02-20
Published:
2024-11-27
Contact:
Ji-xi GAO
摘要:
适当营养添加是提高草地生产力和稳定草原群落结构的重要手段,但不同养分添加量对大尺度草原群落的影响尚不清晰。在总面积为182673 m2的呼伦贝尔轻度退化天然刈割草地上开展施肥试验,以尿素颗粒、过磷酸钙颗粒、硫酸钾颗粒为N、P、K元素添加原料,共设置了3个养分添加处理:A处理(2.3 g·m-2 N、1.2 g·m-2 P、0.75 g·m-2 K),B处理(4.6 g·m-2 N、2.4 g·m-2 P、1.5 g·m-2 K),C处理(6.9 g·m-2 N、3.6 g·m-2 P、2.3 g·m-2 K)和1个对照处理;于植物生长中期的2022年7月中旬和8月初进行两次施肥,对比施肥对草地群落特征的影响。结果表明:各处理对草地生产力与物种多样性无协同影响,A处理未显著影响群落生物量,但显著提高了群落丰富度指数;B和C处理显著提高了群落生物量,由CK的201.73 g·m-2提高到B和C处理的319.19和328.52 g·m-2,但未显著影响群落物种多样性。B和C处理显著提高了优势种和多年生丛生禾草的生物量,B处理还显著提高了多年生杂类草的生物量。B和C处理群落生物量的提高是群落物种高度与密度共同作用的结果。A、B和C处理均显著提升了群落C、N、P含量,且与群落生物量的提升呈显著正相关。施肥缓解了养分限制因子对植物生长的影响,通过提高群落中主要物种的生物量来提升群落生物量。
吕娜, 高吉喜, 李政海, 尤春赫, 刘晓曼, 张彪, 莫宇, 朱萨宁, 彭阳, 杨雪. 植物生长中期施肥对草甸草原群落特征与物种多样性的影响[J]. 草业学报, 2025, 34(2): 109-122.
Na LYU, Ji-xi GAO, Zheng-hai LI, Chun-he YOU, Xiao-man LIU, Biao ZHANG, Yu MO, Sa-ning ZHU, Yang PENG, Xue YANG. Effects of fertilizer application during mid-growing season on vegetation community biomass and species diversity in meadow grasslands[J]. Acta Prataculturae Sinica, 2025, 34(2): 109-122.
图1 试验区地理位置基于自然资源部标准地图服务网站GS(2019)3333号标准地图制作,底图边界无修改。Based on the standard map service website GS(2019)3333 of the Ministry of Natural Resources, the boundary of the base map is not modified.
Fig.1 Spatial location of the experimental area
图2 试验区样地划分示意图■为样方布置位置,边长为1 m。■ is the location of the quadrat, and the side length is one meter.
Fig.2 Schematic diagram of the division of sample plots in the experimental area
种名Species | 科Family | 群落成员型Community members | 植物功能群Plant functional group |
---|---|---|---|
大穗花P. dauricum | 车前科Plantaginaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
多枝柳穿鱼Linaria buriatica | 车前科Plantaginaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
裂叶荆芥Schizonepeta tenuifolia | 唇形科Labiatae | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
乳浆大戟Euphorbia esula | 大戟科Euphorbiaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
扁蓿豆Medicago ruthenica | 豆科Leguminosae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
米口袋Gueldenstaedtia verna | 豆科Leguminosae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
山野豌豆Vicia amoena | 豆科Leguminosae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
小叶锦鸡儿Caragana microphylla | 豆科Leguminosae | 偶见种 Occasionally species | 灌木或半灌木 Shrub/semi-shrubs |
斜茎黄芪Astragalus laxmannii | 豆科Leguminosae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
草木樨状黄芪Astragalus melilotoides | 豆科Leguminosae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
贝加尔针茅S. baicalensis | 禾本科Gramineae | 亚优势种 Subdominant species | 多年生丛生禾草 Perennial bunchgrass |
冰草Agropyron cristatum | 禾本科Gramineae | 次要伴生种 Secondary companion species | 多年生丛生禾草 Perennial bunchgrass |
糙隐子草C. squarrosa | 禾本科Gramineae | 优势种 Dominant species | 多年生丛生禾草 Perennial bunchgrass |
草地早熟禾Poa pratensis | 禾本科Gramineae | 主要伴生种 Main companion species | 多年生根茎禾草 Perennial rhizome grass |
洽草Koeleria macrantha | 禾本科Gramineae | 次要伴生种 Secondary companion species | 多年生丛生禾草 Perennial bunchgrass |
羊草L. chinensis | 禾本科Gramineae | 优势种 Dominant species | 多年生根茎禾草 Perennial rhizome grass |
异燕麦Helictochloa hookeri | 禾本科Gramineae | 偶见种 Occasionally species | 多年生丛生禾草 Perennial bunchgrass |
羽茅A. sibiricum | 禾本科Gramineae | 亚优势种 Subdominant species | 多年生丛生禾草 Perennial bunchgrass |
钝叶瓦松Hylotelephium malacophyllum | 景天科Crassulaceae | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
长柱沙参Adenophora stenanthina | 桔梗科Campanulaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
阿尔泰狗娃花A. altaicus | 菊科Compositae | 主要伴生种 Main companion species | 多年生杂类草 Perennial forbs |
白莲蒿Artemisia stechmanniana | 菊科Compositae | 偶见种 Occasionally species | 灌木或半灌木 Shrub/semi-shrubs |
冷蒿A. frigida | 菊科Compositae | 主要伴生种 Main companion species | 灌木或半灌木 Shrub/semi-shrubs |
裂叶蒿A. tanacetifolia | 菊科Compositae | 亚优势种 Subdominant species | 多年生杂类草 Perennial forbs |
柳叶风毛菊Saussurea salicifolia | 菊科Compositae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
麻花头K. centauroides | 菊科Compositae | 亚优势种 Subdominant species | 多年生杂类草 Perennial forbs |
蒲公英Taraxacum mongolicum | 菊科Compositae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
柔毛蒿A. pubescens | 菊科Compositae | 次要伴生种 Secondary companion species | 1年生或2年生植物 Annuals/biennial plant |
丝叶苦荬菜Ixeris chinensis subsp. versicolor | 菊科Compositae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
细叶鸦葱T. pusilla | 菊科Compositae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
细叶藜Chenopodium stenophyllum | 藜科Compositae | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
达乌里芯芭Cymbaria daurica | 列当科Orobanchaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
黄花列当Orobanche pycnostachya | 列当科Orobanchaceae | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
列当Orobanche coerulescens | 列当科Orobanchaceae | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
鳞叶龙胆Gentiana squarrosa | 龙胆科Gentianaceae | 次要伴生种 Secondary companion species | 1年生或2年生植物 Annuals/biennial plant |
棉团铁线莲Clematis hexapetala | 毛茛科Ranunculaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
细叶白头翁P. turczaninovii | 毛茛科Ranunculaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
展枝唐松草T. squarrosum | 毛茛科Ranunculaceae | 主要伴生种 Main companion species | 多年生杂类草 Perennial forbs |
蓬子菜Galium verum | 茜草科Rubiaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
二裂委陵菜S. bifurca | 蔷薇科Rosaceae | 主要伴生种 Main companion species | 多年生杂类草 Perennial forbs |
伏毛山莓草Sibbaldia procumbens | 蔷薇科Rosaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
菊叶委陵菜P. tanacetifolia | 蔷薇科Rosaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
绢毛山莓草Sibbaldia sericea | 蔷薇科Rosaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
轮叶委陵菜Potentilla verticillaris | 蔷薇科Rosaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
星毛委陵菜P. acaulis | 蔷薇科Rosaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
红柴胡Bupleurum scorzonerifolium | 伞形科Umbelliferae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
柄状薹草C. pediformis | 莎草科Cyperaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
寸草Carex duriuscula | 莎草科Cyperaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
黄囊苔草C. korshinskyi | 莎草科Cyperaceae | 亚优势种 Subdominant species | 多年生杂类草 Perennial forbs |
独行菜Lepidium apetalum | 十字花科Cruciferea | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
小花花旗杆Dontostemon micranthus | 十字花科Cruciferea | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
多根葱A. polyrhizum | 石蒜科Amaryllidaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
双齿葱A. bidentatum | 石蒜科Amaryllidaceae | 亚优势种 Subdominant species | 多年生杂类草 Perennial forbs |
山韭Allium senescens | 石蒜科Amaryllidaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
细叶韭Allium tenuissimum | 石蒜科Amaryllidaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
野韭Allium ramosum | 石蒜科Amaryllidaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
旱麦瓶草Silene jenisseensis | 石竹科Caryophliaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
石竹Dianthus chinensis | 石竹科Caryophliaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
刺藜Teloxys aristata | 苋科Amaranthaceae | 次要伴生种 Secondary companion species | 1年生或2年生植物 Annuals/biennial plant |
藜Chenopodium album | 苋科Amaranthaceae | 次要伴生种 Secondary companion species | 1年生或2年生植物 Annuals/biennial plant |
银灰旋花C. ammannii | 旋花科Convolvulaceae | 偶见种Occasionally species | 多年生杂类草 Perennial forbs |
粗根鸢尾Iris tigridia | 鸢尾科Iridaceae | 偶见种Occasionally species | 多年生杂类草 Perennial forbs |
囊花鸢尾Iris ventricosa | 鸢尾科Iridaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
野鸢尾Iris dichotoma | 鸢尾科Iridaceae | 偶见种Occasionally species | 多年生杂类草 Perennial forbs |
表1 试验区植物名录以及其所属不同群落成员型和功能群
Table 1 The list of plants in the experimental area, as well as the action level and functional group of the community to which they belong
种名Species | 科Family | 群落成员型Community members | 植物功能群Plant functional group |
---|---|---|---|
大穗花P. dauricum | 车前科Plantaginaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
多枝柳穿鱼Linaria buriatica | 车前科Plantaginaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
裂叶荆芥Schizonepeta tenuifolia | 唇形科Labiatae | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
乳浆大戟Euphorbia esula | 大戟科Euphorbiaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
扁蓿豆Medicago ruthenica | 豆科Leguminosae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
米口袋Gueldenstaedtia verna | 豆科Leguminosae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
山野豌豆Vicia amoena | 豆科Leguminosae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
小叶锦鸡儿Caragana microphylla | 豆科Leguminosae | 偶见种 Occasionally species | 灌木或半灌木 Shrub/semi-shrubs |
斜茎黄芪Astragalus laxmannii | 豆科Leguminosae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
草木樨状黄芪Astragalus melilotoides | 豆科Leguminosae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
贝加尔针茅S. baicalensis | 禾本科Gramineae | 亚优势种 Subdominant species | 多年生丛生禾草 Perennial bunchgrass |
冰草Agropyron cristatum | 禾本科Gramineae | 次要伴生种 Secondary companion species | 多年生丛生禾草 Perennial bunchgrass |
糙隐子草C. squarrosa | 禾本科Gramineae | 优势种 Dominant species | 多年生丛生禾草 Perennial bunchgrass |
草地早熟禾Poa pratensis | 禾本科Gramineae | 主要伴生种 Main companion species | 多年生根茎禾草 Perennial rhizome grass |
洽草Koeleria macrantha | 禾本科Gramineae | 次要伴生种 Secondary companion species | 多年生丛生禾草 Perennial bunchgrass |
羊草L. chinensis | 禾本科Gramineae | 优势种 Dominant species | 多年生根茎禾草 Perennial rhizome grass |
异燕麦Helictochloa hookeri | 禾本科Gramineae | 偶见种 Occasionally species | 多年生丛生禾草 Perennial bunchgrass |
羽茅A. sibiricum | 禾本科Gramineae | 亚优势种 Subdominant species | 多年生丛生禾草 Perennial bunchgrass |
钝叶瓦松Hylotelephium malacophyllum | 景天科Crassulaceae | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
长柱沙参Adenophora stenanthina | 桔梗科Campanulaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
阿尔泰狗娃花A. altaicus | 菊科Compositae | 主要伴生种 Main companion species | 多年生杂类草 Perennial forbs |
白莲蒿Artemisia stechmanniana | 菊科Compositae | 偶见种 Occasionally species | 灌木或半灌木 Shrub/semi-shrubs |
冷蒿A. frigida | 菊科Compositae | 主要伴生种 Main companion species | 灌木或半灌木 Shrub/semi-shrubs |
裂叶蒿A. tanacetifolia | 菊科Compositae | 亚优势种 Subdominant species | 多年生杂类草 Perennial forbs |
柳叶风毛菊Saussurea salicifolia | 菊科Compositae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
麻花头K. centauroides | 菊科Compositae | 亚优势种 Subdominant species | 多年生杂类草 Perennial forbs |
蒲公英Taraxacum mongolicum | 菊科Compositae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
柔毛蒿A. pubescens | 菊科Compositae | 次要伴生种 Secondary companion species | 1年生或2年生植物 Annuals/biennial plant |
丝叶苦荬菜Ixeris chinensis subsp. versicolor | 菊科Compositae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
细叶鸦葱T. pusilla | 菊科Compositae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
细叶藜Chenopodium stenophyllum | 藜科Compositae | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
达乌里芯芭Cymbaria daurica | 列当科Orobanchaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
黄花列当Orobanche pycnostachya | 列当科Orobanchaceae | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
列当Orobanche coerulescens | 列当科Orobanchaceae | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
鳞叶龙胆Gentiana squarrosa | 龙胆科Gentianaceae | 次要伴生种 Secondary companion species | 1年生或2年生植物 Annuals/biennial plant |
棉团铁线莲Clematis hexapetala | 毛茛科Ranunculaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
细叶白头翁P. turczaninovii | 毛茛科Ranunculaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
展枝唐松草T. squarrosum | 毛茛科Ranunculaceae | 主要伴生种 Main companion species | 多年生杂类草 Perennial forbs |
蓬子菜Galium verum | 茜草科Rubiaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
二裂委陵菜S. bifurca | 蔷薇科Rosaceae | 主要伴生种 Main companion species | 多年生杂类草 Perennial forbs |
伏毛山莓草Sibbaldia procumbens | 蔷薇科Rosaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
菊叶委陵菜P. tanacetifolia | 蔷薇科Rosaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
绢毛山莓草Sibbaldia sericea | 蔷薇科Rosaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
轮叶委陵菜Potentilla verticillaris | 蔷薇科Rosaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
星毛委陵菜P. acaulis | 蔷薇科Rosaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
红柴胡Bupleurum scorzonerifolium | 伞形科Umbelliferae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
柄状薹草C. pediformis | 莎草科Cyperaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
寸草Carex duriuscula | 莎草科Cyperaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
黄囊苔草C. korshinskyi | 莎草科Cyperaceae | 亚优势种 Subdominant species | 多年生杂类草 Perennial forbs |
独行菜Lepidium apetalum | 十字花科Cruciferea | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
小花花旗杆Dontostemon micranthus | 十字花科Cruciferea | 偶见种 Occasionally species | 1年生或2年生植物 Annuals/biennial plant |
多根葱A. polyrhizum | 石蒜科Amaryllidaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
双齿葱A. bidentatum | 石蒜科Amaryllidaceae | 亚优势种 Subdominant species | 多年生杂类草 Perennial forbs |
山韭Allium senescens | 石蒜科Amaryllidaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
细叶韭Allium tenuissimum | 石蒜科Amaryllidaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
野韭Allium ramosum | 石蒜科Amaryllidaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
旱麦瓶草Silene jenisseensis | 石竹科Caryophliaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
石竹Dianthus chinensis | 石竹科Caryophliaceae | 偶见种 Occasionally species | 多年生杂类草 Perennial forbs |
刺藜Teloxys aristata | 苋科Amaranthaceae | 次要伴生种 Secondary companion species | 1年生或2年生植物 Annuals/biennial plant |
藜Chenopodium album | 苋科Amaranthaceae | 次要伴生种 Secondary companion species | 1年生或2年生植物 Annuals/biennial plant |
银灰旋花C. ammannii | 旋花科Convolvulaceae | 偶见种Occasionally species | 多年生杂类草 Perennial forbs |
粗根鸢尾Iris tigridia | 鸢尾科Iridaceae | 偶见种Occasionally species | 多年生杂类草 Perennial forbs |
囊花鸢尾Iris ventricosa | 鸢尾科Iridaceae | 次要伴生种 Secondary companion species | 多年生杂类草 Perennial forbs |
野鸢尾Iris dichotoma | 鸢尾科Iridaceae | 偶见种Occasionally species | 多年生杂类草 Perennial forbs |
图3 不同处理群落生物量、植物密度和群落高度CK表示对照处理,A代表A处理,B代表B处理,C代表C处理;不同小写字母表示差异显著(P<0.05)。下同。CK represents the control treatment, A represents the A treatment, B represents the B treatment, and C represents the C treatment; Different lowercase letters indicate significant differences among different treatments. The same below.
Fig.3 Community biomass, plant density and community height under different treatments
图6 不同群落成员型生物量、密度、高度和重要值DS:表示优势种represents dominant species; SDS:表示亚优势种represents subdominant species; MCS:表示主要伴生种represents main companion species; SCS:表示次要伴生种represents secondary companion species; OS:表示偶见种represents occasionally species; IS:表示退化指示种represents indicator species;下同The same below.
Fig. 6 The biomass, density, height, and importance values of different community members
项目 Items | 处理 Treatments | 多年生根茎禾草 Perennial rhizomatous grass | 多年生丛生禾草 Perennial bunchgrass | 多年生杂类草 Perennial forbs | 灌木或半灌木 Shrub/semi-shrub | 1年生或2年生植物 Annuals/biennial plant |
---|---|---|---|---|---|---|
生物量 Biomass (g·m-2) | CK | 45.77±21.12a | 70.04±29.64b | 74.21±25.32b | 5.91±8.40a | 9.16±7.60a |
A | 43.20±26.68a | 59.72±29.68b | 103.67±24.77ab | 10.09±6.63a | 4.53±4.89a | |
B | 55.73±21.91a | 114.17±49.25a | 136.03±87.83a | 7.78±7.19a | 7.43±7.97a | |
C | 38.28±30.88a | 136.95±50.97a | 130.71±57.73ab | 5.99±6.67a | 17.34±23.06a | |
密度 Density (plant·m-2) | CK | 111.63±56.48a | 122.75±39.06a | 178.25±94.47a | 2.40±1.52a | 29.00±24.24a |
A | 84.25±46.14a | 72.13±17.22b | 184.63±42.59a | 2.75±2.61a | 14.88±9.89a | |
B | 103.88±38.88a | 97.25±37.25ab | 247.25±167.91a | 2.67±1.63a | 33.00±32.70a | |
C | 73.38±63.91a | 87.38±23.60ab | 224.00±107.12a | 3.43±2.23a | 23.75±13.58a | |
高度 Height (cm) | CK | 75.00±19.56ab | 100.63±41.32ab | 248.75±87.46a | 30.4±15.65a | 37.14±26.56a |
A | 80.13±11.52a | 87.50±16.40b | 311.63±92.28a | 36.50±15.57a | 33.38±25.39a | |
B | 58.13±24.93b | 92.75±23.61b | 271.63±62.53a | 25.33±15.25a | 33.00±27.49a | |
C | 57.25±21.74b | 124.75±30.12a | 269.38±93.87a | 22.00±10.41a | 51.75±27.97a | |
重要值 Important values (%) | CK | 19.87±7.20a | 28.93±2.46a | 41.47±2.26b | 1.95±0.86b | 5.59±1.95a |
A | 18.76±2.08a | 20.78±1.62b | 52.28±2.66a | 4.06±0.60a | 4.12±0.78a | |
B | 18.01±2.45a | 26.03±2.78ab | 48.48±4.09ab | 2.10±0.64b | 5.38±1.62a | |
C | 13.02±2.44a | 30.29±3.49a | 47.67±3.95ab | 2.08±0.56b | 6.95±1.39a |
表2 不同处理功能群生物量、密度、群落高度和重要值
Table 2 The biomass, density, community height, and importance value for different treatments functional groups
项目 Items | 处理 Treatments | 多年生根茎禾草 Perennial rhizomatous grass | 多年生丛生禾草 Perennial bunchgrass | 多年生杂类草 Perennial forbs | 灌木或半灌木 Shrub/semi-shrub | 1年生或2年生植物 Annuals/biennial plant |
---|---|---|---|---|---|---|
生物量 Biomass (g·m-2) | CK | 45.77±21.12a | 70.04±29.64b | 74.21±25.32b | 5.91±8.40a | 9.16±7.60a |
A | 43.20±26.68a | 59.72±29.68b | 103.67±24.77ab | 10.09±6.63a | 4.53±4.89a | |
B | 55.73±21.91a | 114.17±49.25a | 136.03±87.83a | 7.78±7.19a | 7.43±7.97a | |
C | 38.28±30.88a | 136.95±50.97a | 130.71±57.73ab | 5.99±6.67a | 17.34±23.06a | |
密度 Density (plant·m-2) | CK | 111.63±56.48a | 122.75±39.06a | 178.25±94.47a | 2.40±1.52a | 29.00±24.24a |
A | 84.25±46.14a | 72.13±17.22b | 184.63±42.59a | 2.75±2.61a | 14.88±9.89a | |
B | 103.88±38.88a | 97.25±37.25ab | 247.25±167.91a | 2.67±1.63a | 33.00±32.70a | |
C | 73.38±63.91a | 87.38±23.60ab | 224.00±107.12a | 3.43±2.23a | 23.75±13.58a | |
高度 Height (cm) | CK | 75.00±19.56ab | 100.63±41.32ab | 248.75±87.46a | 30.4±15.65a | 37.14±26.56a |
A | 80.13±11.52a | 87.50±16.40b | 311.63±92.28a | 36.50±15.57a | 33.38±25.39a | |
B | 58.13±24.93b | 92.75±23.61b | 271.63±62.53a | 25.33±15.25a | 33.00±27.49a | |
C | 57.25±21.74b | 124.75±30.12a | 269.38±93.87a | 22.00±10.41a | 51.75±27.97a | |
重要值 Important values (%) | CK | 19.87±7.20a | 28.93±2.46a | 41.47±2.26b | 1.95±0.86b | 5.59±1.95a |
A | 18.76±2.08a | 20.78±1.62b | 52.28±2.66a | 4.06±0.60a | 4.12±0.78a | |
B | 18.01±2.45a | 26.03±2.78ab | 48.48±4.09ab | 2.10±0.64b | 5.38±1.62a | |
C | 13.02±2.44a | 30.29±3.49a | 47.67±3.95ab | 2.08±0.56b | 6.95±1.39a |
图8 各监测指标的双变量相关性分析B:生物量Biomass; D:密度Density; H:高度Height; IV:重要值Important value; PR:多年生根茎禾草Perennial rhizome grass; PB:多年生丛生禾草Perennial bunchgrass; PF:多年生杂类草Perennial forbs; SS:灌木或半灌木Shrub/semi-shrubs; AB:1年生或2年生植物Annuals/biennial plant; TP: 全磷 Total P; TN: 全氮Total N; TC: 全碳Total C. *:表示差异显著Indicates significant differences at 0.05 level. *: P≤0.05
Fig.8 Bivariate correlation analysis of each monitoring indicator
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