草业学报 ›› 2022, Vol. 31 ›› Issue (4): 12-21.DOI: 10.11686/cyxb2021007
金玲1(), 陆颖1, 马红彬1,2,3, 谢应忠1,2,3, 沈艳1,2,3()
收稿日期:
2021-01-05
修回日期:
2021-04-06
出版日期:
2022-04-20
发布日期:
2022-01-25
通讯作者:
沈艳
作者简介:
Corresponding author. E-mail: nxshenyan@163.com基金资助:
Ling JIN1(), Ying LU1, Hong-bin MA1,2,3, Ying-zhong XIE1,2,3, Yan SHEN1,2,3()
Received:
2021-01-05
Revised:
2021-04-06
Online:
2022-04-20
Published:
2022-01-25
Contact:
Yan SHEN
摘要:
了解草地群落类型、分布及其与土壤环境的关系,对草地科学管理及生物多样性保护具有重要意义。以内蒙古鄂托克前旗荒漠草原的100个样地为研究对象,通过野外调查与室内分析相结合的方法,对试验区内100个样地的植物群落数量特征进行观测和分析,测定土壤理化因子,采用双向指示种法(two-way indicator species analysis,TWINSPAN),对植物群落数量进行分类,并采用典范对应分析法(CCA)分析植物群落与土壤因子的关系,结果表明: 1)研究区内荒漠草原分为黑沙蒿+短花针茅群落,短花针茅+芨芨草群落,冰草+芨芨草群落,黑沙蒿+苦豆子群落,中间锦鸡儿+牛枝子群落,短花针茅+猫头刺群落,苦豆子+短花针茅群落,大针茅+白刺群落8个类型。2)CCA排序结果表明,土壤主要理化因子与排序轴的相关性由大到小分别为碱解氮、速效钾、全磷、土壤容重、全氮、速效磷、有机质和总碳。碱解氮和速效钾对内蒙古鄂托克前旗荒漠草原植物群落分布影响较大。3)TWINSPAN分类与CCA排序结合反映了群落分布特征与环境因子之间的关系,可为内蒙古鄂托克前旗荒漠草原生态建设和可持续利用提供参考。
金玲, 陆颖, 马红彬, 谢应忠, 沈艳. 内蒙古鄂托克前旗荒漠草原植物群落的数量分类与排序[J]. 草业学报, 2022, 31(4): 12-21.
Ling JIN, Ying LU, Hong-bin MA, Ying-zhong XIE, Yan SHEN. Numerical classification and ordination of the desert steppe plant community in Etuokeqianqi, Inner Mongolia[J]. Acta Prataculturae Sinica, 2022, 31(4): 12-21.
图2 内蒙古鄂托克前旗荒漠草原100个样地群落的双向指示种分类树状图D: 分类次序Sort order; N: 组内样地数Number of plots in the group; 1~100: 样地编号Sample number; Ⅰ~Ⅷ: 群落编号Community number.
Fig.2 Dendrogram of two-way indicator species classification of 100 sample plots in desert steppe in Etuokeqianqi, Inner Mongolia
指标Index | 第1轴The first axis | 第2轴The second axis | 第3轴The third axis | 第4轴The fourth axis |
---|---|---|---|---|
特征值Eigenvalues | 0.4998 | 0.3147 | 0.1953 | 0.1465 |
累计解释变量Explained variation cumulative | 5.03 | 8.20 | 10.17 | 11.65 |
非典型相关Pseudo-canonical correlation | 0.7898 | 0.7781 | 0.7153 | 0.6216 |
累计解释拟合变量Explained fitted variation cumulative (%) | 33.87 | 55.20 | 68.44 | 78.37 |
表1 CCA排序统计
Table 1 CCA sorting statistics
指标Index | 第1轴The first axis | 第2轴The second axis | 第3轴The third axis | 第4轴The fourth axis |
---|---|---|---|---|
特征值Eigenvalues | 0.4998 | 0.3147 | 0.1953 | 0.1465 |
累计解释变量Explained variation cumulative | 5.03 | 8.20 | 10.17 | 11.65 |
非典型相关Pseudo-canonical correlation | 0.7898 | 0.7781 | 0.7153 | 0.6216 |
累计解释拟合变量Explained fitted variation cumulative (%) | 33.87 | 55.20 | 68.44 | 78.37 |
土壤因子 Soil factor | 解释变量 Explains (%) | 贡献值 Contribution (%) | 置换检验 Pseudo-F | 显著性 P | 土壤因子 Soil factor | 解释变量 Explains (%) | 贡献值 Contribution (%) | 置换检验 Pseudo-F | 显著性 P |
---|---|---|---|---|---|---|---|---|---|
H6 | 4.6 | 30.8 | 4.7 | 0.006 | H7 | 1.4 | 9.1 | 1.4 | 0.064 |
H 3 | 2.9 | 19.4 | 3.0 | 0.002 | H4 | 1.0 | 6.8 | 1.1 | 0.324 |
H8 | 1.7 | 11.3 | 1.8 | 0.010 | H5 | 1.0 | 6.6 | 1.1 | 0.376 |
H1 | 1.6 | 11.1 | 1.8 | 0.008 | H2 | 0.7 | 4.9 | 0.8 | 0.780 |
表2 内蒙古鄂托克前旗荒漠草原土壤因子与CCA排序轴相关分析
Table 2 Correlation analysis between soil factors and CCA ordination axis of desert steppe in Etuokeqianqi, Inner Mongolia
土壤因子 Soil factor | 解释变量 Explains (%) | 贡献值 Contribution (%) | 置换检验 Pseudo-F | 显著性 P | 土壤因子 Soil factor | 解释变量 Explains (%) | 贡献值 Contribution (%) | 置换检验 Pseudo-F | 显著性 P |
---|---|---|---|---|---|---|---|---|---|
H6 | 4.6 | 30.8 | 4.7 | 0.006 | H7 | 1.4 | 9.1 | 1.4 | 0.064 |
H 3 | 2.9 | 19.4 | 3.0 | 0.002 | H4 | 1.0 | 6.8 | 1.1 | 0.324 |
H8 | 1.7 | 11.3 | 1.8 | 0.010 | H5 | 1.0 | 6.6 | 1.1 | 0.376 |
H1 | 1.6 | 11.1 | 1.8 | 0.008 | H2 | 0.7 | 4.9 | 0.8 | 0.780 |
图5 内蒙古鄂托克前旗荒漠草原CCA物种排序1: 猪毛蒿A. scoparia; 2: 黑沙蒿A. ordosica; 3: 甘遂E. kansui; 4: 苦豆子S. alopecuroides; 5: 骆驼蓬P. harmala; 6: 华北白前C. mongolicum;7: 蒙古虫实C. mongolicum; 8: 牛枝子L. potaninii ; 9: 冰草A. cristatum; 10: 砂蓝刺头E. gmelini; 11: 赖草L. secalinus; 12: 雾冰藜B. dasyphylla; 13: 白草P. flaccidum;14: 刺藜C. aristatum;15: 芨芨草A. splendens; 16: 二色棘豆O. bicolor; 17: 短花针茅S. breviflora; 18: 芦苇P. australis; 19: 碱蓬S. glauca; 20: 披针叶野决明T. lanceolata; 21: 猪毛菜S. collina; 22: 长芒草S. bungeana; 23: 丛生隐子草C. caespitosa; 24: 中间锦鸡儿C. intermedia; 25: 狭叶锦鸡儿C. stenophylla; 26: 阿尔泰狗娃花A. altaicus; 27: 圆头藜C. strictum; 28: 狗尾草S. viridis; 29: 甘草G. uralensis; 30: 猫头刺O. aciphylla; 31:白刺N. tangutorum; 32: 早熟禾P. annua; 33: 北莎草C. fuscus; 34: 冷蒿A. frigida; 35: 冬青叶兔唇花L. ilicifolius; 36: 蒺藜T. terrester; 37: 蒙古韭A. mongolicum; 38: 银灰旋花C. ammannii; 39: 沙蓬A. squarrosum; 40: 细枝山竹子C. scoparium; 41: 艾蒿A. argyi; 42: 蒲公英T. mongolicum; 43: 倒羽叶风毛菊S. runcinata; 44: 斜茎黄耆A. laxmannii; 45: 西伯利亚蓼P. sibiricum; 46: 苦苣菜S. oleraceus; 47: 脓疮草P. alaschanica; 48: 角茴香H. erectum; 49: 硬阿魏F. bungeana; 50: 蓼子朴I. salsoloides; 51: 车前P. asiatica; 52: 节节草E. ramosissimum; 53: 少花米口袋G. verna; 54: 大针茅S. grandis; 55: 苦荬菜I. polycephala; 56: 盐爪爪K. foliatum; 57: 细裂叶莲蒿A. gmelinii; 58: 远志P. tenuifolia; 59: 滨藜A. patens; 60: 角蒿I. sinensis; 61: 女娄菜S. aprica; 62: 唐松草T. sibiricum; 63: 兴安天门冬A. dauricus; 64: 二裂委陵菜P. bifurca; 65: 二色补血草L. bicolor; 66: 黄花补血草L. aureum; 67: 尖头叶藜C. acuminatum; 68: 藜C. album; 69: 草木犀M. officinalis; 70: 鼠掌老鹳草G. sibiricum.
Fig.5 CCA species ordination of desert steppe in Etuokeqianqi, Inner Mongolia
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