生物多样性 ›› 2011, Vol. 19 ›› Issue (1): 85-92. DOI: 10.3724/SP.J.1003.2011.08145
收稿日期:
2010-06-03
接受日期:
2010-11-06
出版日期:
2011-01-20
发布日期:
2011-04-01
通讯作者:
唐明
作者简介:
*E-mail: tangm@nwsuaf.edu.cn基金资助:
Min Sheng1, Ming Tang2,*(), Fengfeng Zhang2, Yanhui Huang1
Received:
2010-06-03
Accepted:
2010-11-06
Online:
2011-01-20
Published:
2011-04-01
Contact:
Ming Tang
摘要:
为探明甘肃、宁夏和内蒙古盐碱土中AM真菌多样性及其与土壤因子间的关系, 2005年5月从甘肃、宁夏和内蒙古7个县(市)的盐碱土中采集主要植物的根围土壤样品, 研究了AM真菌物种多样性。在分离的4属28种AM真菌中, 球囊霉属(Glomus)20种, 多孢囊霉属(Diversispora)2种, 原囊霉属(Archaeospora)2种, 无梗囊霉属(Acaulospora)4种。其中根内球囊霉(G. intraradices)和薄壁原囊霉(Ar. leptotichum)的分离频度最高。相关分析和通径分析(path analysis)结果表明, AM真菌种的丰度与土壤有机质和速效N含量呈显著负相关; Cl-、CO32-、HCO3-、Na+、Ca2+、有机质、速效P和速效K直接影响AM真菌种的丰度, 而SO42-、K+、水溶性全盐、Mg2+、 pH和速效N则间接影响AM真菌种的丰度; 土壤有机质对AM真菌Shannon-Wiener多样性指数有显著直接负效应; Cl-、CO32-、K+、Mg2+、有机质、速效P和速效K直接影响Shannon-Wiener多样性指数, 而HCO3-、Na+、Ca2+、SO42-、水溶性全盐、pH和速效N则间接影响Shannon-Wiener多样性指数。冗余度分析结果表明, AM真菌种的相对多度与土壤因子间有显著相关性。可见, 甘肃、宁夏和内蒙古盐碱土中AM真菌种类丰富, 其多样性与土壤养分状况、盐度以及离子含量有关。
盛敏, 唐明, 张峰峰, 黄艳辉 (2011) 土壤因子对甘肃、宁夏和内蒙古盐碱土中AM真菌的影响. 生物多样性, 19, 85-92. DOI: 10.3724/SP.J.1003.2011.08145.
Min Sheng, Ming Tang, Fengfeng Zhang, Yanhui Huang (2011) Effect of soil factors on arbuscular mycorrhizal fungi in saline alkaline soils of Gansu, Inner Mongolia and Ningxia. Biodiversity Science, 19, 85-92. DOI: 10.3724/SP.J.1003.2011.08145.
采样地点 Sampling site | 植物种类 Plant species | 海拔 Elevation (m) | 经纬度 Locality |
---|---|---|---|
甘肃安西 Anxi County, Gansu | 苜蓿(Medicago sativa)、小麦(Triticum aestivum) | 1,135 | 40°29′N, 95°36′E |
甘肃敦煌 Dunhuang County, Gansu | 棉花(Gossypium herbaceum)、骆驼刺(Alhagi sparsifolia) | 1,050 | 40°25′N, 94°41′E |
甘肃玉门镇 Yumen Town, Gansu | 沙枣(Elaegnus angustifolia)、马蔺(Iris lactea)、芨芨草(Achnatherum splendens)、甘草(Glycyrrhiza uralensis) | 1,404 | 40°26′N, 97°00′E |
宁夏平罗 Pingluo County, Ningxia | 玉米(Zea mays)、葱(Allium fistulosum)、胡杨(Populus euphratica)、椿树(Ailanthus altissima)、砂柳(Salix gordejevii)、水稻(Oryza sativa)、冰草(Agropyron cristatum)、枸杞(Lycium chinense)、大米草(Spartina anglica)、芨芨草、白刺(Nitraria tangutorum) | 1,099 | 38°48′N, 106°16′E |
内蒙古呼和浩特市托克托县 Tuoketok County, Inner Mongolia | 白刺、芦苇(Phragmites australis) | 986 | 40°17′N, 111°09′E |
内蒙古哲里木盟奈曼旗 Naiman Banner, Zhelimu League, Inner Mongolia | 寸草苔(Carex duriuscula)、冰草、盐角草(Saliconia europaea)、芦苇、马蔺、柠条(Caragana korshinkii) | ||
内蒙古科尔沁左翼中旗 Ke′erqin Left Middle Banner, Inner Mongolia | 向日葵(Helianthus annnus)、羊草(Leymus chinensis)、筛草(Carex kobomugi) | 259 | 45°3′N, 121°28′E |
表1 甘肃、宁夏和内蒙古各采样点的植物种类、海拔和经纬度
Table 1 Plant species, elevation and locality of sampling sites in Gansu, Inner Mongolia and Ningxia
采样地点 Sampling site | 植物种类 Plant species | 海拔 Elevation (m) | 经纬度 Locality |
---|---|---|---|
甘肃安西 Anxi County, Gansu | 苜蓿(Medicago sativa)、小麦(Triticum aestivum) | 1,135 | 40°29′N, 95°36′E |
甘肃敦煌 Dunhuang County, Gansu | 棉花(Gossypium herbaceum)、骆驼刺(Alhagi sparsifolia) | 1,050 | 40°25′N, 94°41′E |
甘肃玉门镇 Yumen Town, Gansu | 沙枣(Elaegnus angustifolia)、马蔺(Iris lactea)、芨芨草(Achnatherum splendens)、甘草(Glycyrrhiza uralensis) | 1,404 | 40°26′N, 97°00′E |
宁夏平罗 Pingluo County, Ningxia | 玉米(Zea mays)、葱(Allium fistulosum)、胡杨(Populus euphratica)、椿树(Ailanthus altissima)、砂柳(Salix gordejevii)、水稻(Oryza sativa)、冰草(Agropyron cristatum)、枸杞(Lycium chinense)、大米草(Spartina anglica)、芨芨草、白刺(Nitraria tangutorum) | 1,099 | 38°48′N, 106°16′E |
内蒙古呼和浩特市托克托县 Tuoketok County, Inner Mongolia | 白刺、芦苇(Phragmites australis) | 986 | 40°17′N, 111°09′E |
内蒙古哲里木盟奈曼旗 Naiman Banner, Zhelimu League, Inner Mongolia | 寸草苔(Carex duriuscula)、冰草、盐角草(Saliconia europaea)、芦苇、马蔺、柠条(Caragana korshinkii) | ||
内蒙古科尔沁左翼中旗 Ke′erqin Left Middle Banner, Inner Mongolia | 向日葵(Helianthus annnus)、羊草(Leymus chinensis)、筛草(Carex kobomugi) | 259 | 45°3′N, 121°28′E |
AM真菌种属 Genera and species of AM fungi | 分离频度 Frequency (%) | AM真菌种属 Genera and species of AM fungi | 分离频度 Frequency (%) |
---|---|---|---|
无梗囊霉属 Acaulospora | 36.7 | 明球囊霉 G. clarum | 6.7 |
浅窝无梗囊霉 A. lacunosa | 3.3 | 缩球囊霉 G. constrictum | 66.7 |
皱壁无梗囊霉 A. rugosa | 6.7 | 副冠球囊霉 G. coronatum | 26.7 |
细凹无梗囊霉 A. scrobiculata | 16.7 | 透光球囊霉 G. diaphanum | 3.3 |
刺无梗囊霉 A. spinosa | 16.7 | 聚生球囊霉 G. fasciculatum | 10.0 |
原囊霉属 Archaeospora | 83.3 | 地球囊霉 G. geosporum | 76.7 |
格氏原囊霉 Ar. gerdemannii | 6.7 | 根内球囊霉 G. intraradices | 80.0 |
薄壁原囊霉 Ar. leptotichum | 80.0 | 木薯球囊霉 G. manihotis | 23.3 |
多孢囊霉属 Diversispora | 76.7 | 摩西球囊霉 G. mosseae | 33.3 |
幼套多孢囊霉 D. etunicatum | 3.3 | 膨果球囊霉 G. pansihalos | 3.3 |
地表多孢囊霉 D. versiforme | 73.3 | 具疱球囊霉 G. pustulatum | 16.7 |
球囊霉属 Glomus | 96.7 | 网状球囊霉 G. reticulatum | 3.3 |
聚丛球囊霉 G. aggregatum | 6.7 | 荫性球囊霉 G. tenebrosum | 43.3 |
白色球囊霉 G. albidum | 3.3 | 三壁球囊霉 G. trimurales | 3.3 |
澳洲球囊霉 G. australe | 26.7 | 疣壁球囊霉 G. verruculosum | 20.0 |
近明球囊霉 G. claroideum | 13.3 | 泡囊球囊霉 G. vesiculiferum | 3.3 |
表2 盐碱土中AM真菌的种类及其分离频度
Table 2 Frequency of AM fungal genera and species in saline alkaline soils
AM真菌种属 Genera and species of AM fungi | 分离频度 Frequency (%) | AM真菌种属 Genera and species of AM fungi | 分离频度 Frequency (%) |
---|---|---|---|
无梗囊霉属 Acaulospora | 36.7 | 明球囊霉 G. clarum | 6.7 |
浅窝无梗囊霉 A. lacunosa | 3.3 | 缩球囊霉 G. constrictum | 66.7 |
皱壁无梗囊霉 A. rugosa | 6.7 | 副冠球囊霉 G. coronatum | 26.7 |
细凹无梗囊霉 A. scrobiculata | 16.7 | 透光球囊霉 G. diaphanum | 3.3 |
刺无梗囊霉 A. spinosa | 16.7 | 聚生球囊霉 G. fasciculatum | 10.0 |
原囊霉属 Archaeospora | 83.3 | 地球囊霉 G. geosporum | 76.7 |
格氏原囊霉 Ar. gerdemannii | 6.7 | 根内球囊霉 G. intraradices | 80.0 |
薄壁原囊霉 Ar. leptotichum | 80.0 | 木薯球囊霉 G. manihotis | 23.3 |
多孢囊霉属 Diversispora | 76.7 | 摩西球囊霉 G. mosseae | 33.3 |
幼套多孢囊霉 D. etunicatum | 3.3 | 膨果球囊霉 G. pansihalos | 3.3 |
地表多孢囊霉 D. versiforme | 73.3 | 具疱球囊霉 G. pustulatum | 16.7 |
球囊霉属 Glomus | 96.7 | 网状球囊霉 G. reticulatum | 3.3 |
聚丛球囊霉 G. aggregatum | 6.7 | 荫性球囊霉 G. tenebrosum | 43.3 |
白色球囊霉 G. albidum | 3.3 | 三壁球囊霉 G. trimurales | 3.3 |
澳洲球囊霉 G. australe | 26.7 | 疣壁球囊霉 G. verruculosum | 20.0 |
近明球囊霉 G. claroideum | 13.3 | 泡囊球囊霉 G. vesiculiferum | 3.3 |
Cl- | SO42- | CO32- | HCO3- | Na+ | K+ | Ca2+ | Mg2+ | 水溶性全盐 Soluble salt | pH | 有机质 Organic matter | 速效P Available P | 速效K Available K | 速效N Available N | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SR | -0.36 | 0.16 | 0.23 | 0.17 | -0.210 | 0.0084 | -0.0055 | -0.082 | 0.071 | 0.22 | -0.55* | -0.14 | 0.021 | -0.44* |
H | -0.26 | 0.21 | 0.11 | 0.15 | -0.092 | 0.069 | 0.058 | 0.0410 | 0.130 | 0.14 | -0.48* | -0.29 | 0.048 | -0.32 |
表3 土壤因子与AM真菌种的丰度(SR)和Shannon-Wiener多样性指数(H)的相关系数
Table 3 Correlation coefficients (r) between soil properties and AM fungal species richness (SR) and Shannon-Wiener diversity index (H)
Cl- | SO42- | CO32- | HCO3- | Na+ | K+ | Ca2+ | Mg2+ | 水溶性全盐 Soluble salt | pH | 有机质 Organic matter | 速效P Available P | 速效K Available K | 速效N Available N | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SR | -0.36 | 0.16 | 0.23 | 0.17 | -0.210 | 0.0084 | -0.0055 | -0.082 | 0.071 | 0.22 | -0.55* | -0.14 | 0.021 | -0.44* |
H | -0.26 | 0.21 | 0.11 | 0.15 | -0.092 | 0.069 | 0.058 | 0.0410 | 0.130 | 0.14 | -0.48* | -0.29 | 0.048 | -0.32 |
x1→y | x2→y | x3→y | x4→y | x5→y | x6→y | x7→y | x8→y | x9→y | x10→y | x11→y | x12→y | x13→y | x14→y | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
x1 | -0.24 | 0.07 | -0.04 | -0.02 | -0.20 | -0.03 | -0.002 | 0.24 | -0.01 | 0.04 | -0.40 | -0.01 | 0.09 | 0.14 | ||||||||||||||
x2 | 0.06 | -0.28 | 0.22 | 0.07 | -0.04 | -0.01 | 0.002 | -0.09 | 0.00008 | -0.11 | 0.67 | -0.01 | 0.01 | -0.34 | ||||||||||||||
x3 | 0.02 | -0.11 | 0.56 | 0.09 | -0.13 | -0.04 | 0.001 | 0.06 | -0.01 | -0.12 | 0.34 | -0.21 | 0.13 | -0.36 | ||||||||||||||
x4 | 0.04 | -0.14 | 0.38 | 0.13 | -0.09 | -0.04 | 0.001 | 0.07 | -0.01 | -0.10 | 0.17 | -0.19 | 0.11 | -0.18 | ||||||||||||||
x5 | -0.17 | -0.05 | 0.27 | 0.04 | -0.27 | -0.04 | -0.0003 | 0.20 | -0.01 | -0.04 | -0.06 | -0.10 | 0.14 | -0.12 | ||||||||||||||
x6 | -0.10 | -0.04 | 0.30 | 0.08 | -0.16 | -0.07 | -0.0007 | 0.36 | -0.01 | -0.05 | -0.21 | -0.22 | 0.18 | -0.05 | ||||||||||||||
x7 | -0.09 | 0.14 | -0.16 | -0.03 | -0.02 | -0.01 | -0.005 | 0.15 | -0.01 | 0.10 | -0.24 | 0.00 | 0.04 | 0.13 | ||||||||||||||
x8 | -0.13 | 0.06 | 0.07 | 0.02 | -0.12 | -0.06 | -0.002 | 0.44 | -0.01 | 0.01 | -0.52 | -0.16 | 0.15 | 0.16 | ||||||||||||||
x9 | -0.14 | 0.00 | 0.29 | 0.04 | -0.18 | -0.06 | -0.002 | 0.35 | -0.02 | -0.03 | -0.13 | -0.16 | 0.17 | -0.07 | ||||||||||||||
x10 | 0.06 | -0.19 | 0.41 | 0.09 | -0.07 | -0.02 | 0.003 | -0.04 | -0.003 | -0.16 | 0.62 | -0.05 | 0.03 | -0.47 | ||||||||||||||
x11 | -0.08 | 0.15 | -0.15 | -0.02 | -0.01 | -0.01 | -0.0009 | 0.18 | -0.002 | 0.08 | -1.26 | -0.12 | 0.04 | 0.65 | ||||||||||||||
x12 | -0.003 | -0.005 | 0.28 | 0.06 | -0.07 | -0.04 | 0.00002 | 0.17 | -0.01 | -0.02 | -0.39 | -0.41 | 0.15 | 0.13 | ||||||||||||||
x13 | -0.09 | -0.01 | 0.33 | 0.07 | -0.17 | -0.06 | -0.0008 | 0.31 | -0.01 | -0.02 | -0.24 | -0.28 | 0.22 | -0.01 | ||||||||||||||
x14 | -0.05 | 0.13 | -0.28 | -0.03 | 0.04 | 0.005 | -0.0009 | 0.10 | 0.00 | 0.10 | -1.13 | -0.07 | -0.002 | 0.73 |
表4 土壤因子(xi)与AM真菌种的丰度(y)的通径分析
Table 4 Path analysis of correlation between soil factors (xi) and AM fungal species richness (y)
x1→y | x2→y | x3→y | x4→y | x5→y | x6→y | x7→y | x8→y | x9→y | x10→y | x11→y | x12→y | x13→y | x14→y | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
x1 | -0.24 | 0.07 | -0.04 | -0.02 | -0.20 | -0.03 | -0.002 | 0.24 | -0.01 | 0.04 | -0.40 | -0.01 | 0.09 | 0.14 | ||||||||||||||
x2 | 0.06 | -0.28 | 0.22 | 0.07 | -0.04 | -0.01 | 0.002 | -0.09 | 0.00008 | -0.11 | 0.67 | -0.01 | 0.01 | -0.34 | ||||||||||||||
x3 | 0.02 | -0.11 | 0.56 | 0.09 | -0.13 | -0.04 | 0.001 | 0.06 | -0.01 | -0.12 | 0.34 | -0.21 | 0.13 | -0.36 | ||||||||||||||
x4 | 0.04 | -0.14 | 0.38 | 0.13 | -0.09 | -0.04 | 0.001 | 0.07 | -0.01 | -0.10 | 0.17 | -0.19 | 0.11 | -0.18 | ||||||||||||||
x5 | -0.17 | -0.05 | 0.27 | 0.04 | -0.27 | -0.04 | -0.0003 | 0.20 | -0.01 | -0.04 | -0.06 | -0.10 | 0.14 | -0.12 | ||||||||||||||
x6 | -0.10 | -0.04 | 0.30 | 0.08 | -0.16 | -0.07 | -0.0007 | 0.36 | -0.01 | -0.05 | -0.21 | -0.22 | 0.18 | -0.05 | ||||||||||||||
x7 | -0.09 | 0.14 | -0.16 | -0.03 | -0.02 | -0.01 | -0.005 | 0.15 | -0.01 | 0.10 | -0.24 | 0.00 | 0.04 | 0.13 | ||||||||||||||
x8 | -0.13 | 0.06 | 0.07 | 0.02 | -0.12 | -0.06 | -0.002 | 0.44 | -0.01 | 0.01 | -0.52 | -0.16 | 0.15 | 0.16 | ||||||||||||||
x9 | -0.14 | 0.00 | 0.29 | 0.04 | -0.18 | -0.06 | -0.002 | 0.35 | -0.02 | -0.03 | -0.13 | -0.16 | 0.17 | -0.07 | ||||||||||||||
x10 | 0.06 | -0.19 | 0.41 | 0.09 | -0.07 | -0.02 | 0.003 | -0.04 | -0.003 | -0.16 | 0.62 | -0.05 | 0.03 | -0.47 | ||||||||||||||
x11 | -0.08 | 0.15 | -0.15 | -0.02 | -0.01 | -0.01 | -0.0009 | 0.18 | -0.002 | 0.08 | -1.26 | -0.12 | 0.04 | 0.65 | ||||||||||||||
x12 | -0.003 | -0.005 | 0.28 | 0.06 | -0.07 | -0.04 | 0.00002 | 0.17 | -0.01 | -0.02 | -0.39 | -0.41 | 0.15 | 0.13 | ||||||||||||||
x13 | -0.09 | -0.01 | 0.33 | 0.07 | -0.17 | -0.06 | -0.0008 | 0.31 | -0.01 | -0.02 | -0.24 | -0.28 | 0.22 | -0.01 | ||||||||||||||
x14 | -0.05 | 0.13 | -0.28 | -0.03 | 0.04 | 0.005 | -0.0009 | 0.10 | 0.00 | 0.10 | -1.13 | -0.07 | -0.002 | 0.73 |
x1→y | x2→y | x3→y | x4→y | x5→y | x6→y | x7→y | x8→y | x9→y | x10→y | x11→y | x12→y | x13→y | x14→y | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
x1 | -0.73 | 0.06 | -0.03 | -0.004 | 0.18 | 0.06 | -0.03 | 0.29 | 0.01 | 0.06 | -0.46 | -0.01 | 0.12 | 0.21 |
x2 | 0.19 | -0.22 | 0.15 | 0.01 | 0.04 | 0.02 | 0.03 | -0.11 | -0.0001 | -0.17 | 0.78 | -0.01 | 0.01 | -0.53 |
x3 | 0.05 | -0.09 | 0.38 | 0.01 | 0.12 | 0.08 | 0.02 | 0.07 | 0.01 | -0.18 | 0.39 | -0.38 | 0.17 | -0.55 |
x4 | 0.14 | -0.11 | 0.26 | 0.02 | 0.08 | 0.09 | 0.02 | 0.09 | 0.01 | -0.16 | 0.20 | -0.35 | 0.14 | -0.27 |
x5 | -0.53 | -0.03 | 0.18 | 0.01 | 0.25 | 0.09 | -0.005 | 0.24 | 0.01 | -0.06 | -0.07 | -0.19 | 0.19 | -0.18 |
x6 | -0.30 | -0.03 | 0.20 | 0.01 | 0.15 | 0.15 | -0.01 | 0.44 | 0.02 | -0.08 | -0.25 | -0.41 | 0.24 | -0.08 |
x7 | -0.28 | 0.11 | -0.11 | -0.01 | 0.02 | 0.02 | -0.07 | 0.18 | 0.01 | 0.15 | -0.28 | 0.00 | 0.05 | 0.20 |
x8 | -0.41 | 0.04 | 0.05 | 0.003 | 0.12 | 0.12 | -0.02 | 0.53 | 0.02 | 0.02 | -0.60 | -0.29 | 0.20 | 0.25 |
x9 | -0.42 | 0.00 | 0.19 | 0.01 | 0.17 | 0.12 | -0.03 | 0.42 | 0.02 | -0.04 | -0.15 | -0.29 | 0.23 | -0.11 |
x10 | 0.19 | -0.15 | 0.28 | 0.01 | 0.06 | 0.05 | 0.04 | -0.04 | 0.004 | -0.25 | 0.72 | -0.09 | 0.04 | -0.73 |
x11 | -0.23 | 0.12 | -0.10 | -0.003 | 0.01 | 0.02 | -0.01 | 0.22 | 0.002 | 0.12 | -1.46* | -0.23 | 0.06 | 1.01 |
x12 | -0.01 | 0.00 | 0.19 | 0.01 | 0.07 | 0.08 | 0.0002 | 0.20 | 0.01 | -0.03 | -0.45 | -0.75 | 0.20 | 0.19 |
x13 | -0.29 | -0.01 | 0.22 | 0.01 | 0.16 | 0.12 | -0.01 | 0.37 | 0.02 | -0.03 | -0.28 | -0.52 | 0.29 | -0.01 |
x14 | -0.14 | 0.10 | -0.19 | -0.01 | -0.04 | -0.01 | -0.01 | 0.12 | -0.002 | 0.16 | -1.31 | -0.13 | 0.00 | 1.13 |
表5 土壤因子(xi)与AM真菌Shannon-Wiener多样性指数(y)的通径分析
Table 5 Path analysis of correlation between AM fungal Shannon-Wiener diversity index (y) and soil factors (xi)
x1→y | x2→y | x3→y | x4→y | x5→y | x6→y | x7→y | x8→y | x9→y | x10→y | x11→y | x12→y | x13→y | x14→y | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
x1 | -0.73 | 0.06 | -0.03 | -0.004 | 0.18 | 0.06 | -0.03 | 0.29 | 0.01 | 0.06 | -0.46 | -0.01 | 0.12 | 0.21 |
x2 | 0.19 | -0.22 | 0.15 | 0.01 | 0.04 | 0.02 | 0.03 | -0.11 | -0.0001 | -0.17 | 0.78 | -0.01 | 0.01 | -0.53 |
x3 | 0.05 | -0.09 | 0.38 | 0.01 | 0.12 | 0.08 | 0.02 | 0.07 | 0.01 | -0.18 | 0.39 | -0.38 | 0.17 | -0.55 |
x4 | 0.14 | -0.11 | 0.26 | 0.02 | 0.08 | 0.09 | 0.02 | 0.09 | 0.01 | -0.16 | 0.20 | -0.35 | 0.14 | -0.27 |
x5 | -0.53 | -0.03 | 0.18 | 0.01 | 0.25 | 0.09 | -0.005 | 0.24 | 0.01 | -0.06 | -0.07 | -0.19 | 0.19 | -0.18 |
x6 | -0.30 | -0.03 | 0.20 | 0.01 | 0.15 | 0.15 | -0.01 | 0.44 | 0.02 | -0.08 | -0.25 | -0.41 | 0.24 | -0.08 |
x7 | -0.28 | 0.11 | -0.11 | -0.01 | 0.02 | 0.02 | -0.07 | 0.18 | 0.01 | 0.15 | -0.28 | 0.00 | 0.05 | 0.20 |
x8 | -0.41 | 0.04 | 0.05 | 0.003 | 0.12 | 0.12 | -0.02 | 0.53 | 0.02 | 0.02 | -0.60 | -0.29 | 0.20 | 0.25 |
x9 | -0.42 | 0.00 | 0.19 | 0.01 | 0.17 | 0.12 | -0.03 | 0.42 | 0.02 | -0.04 | -0.15 | -0.29 | 0.23 | -0.11 |
x10 | 0.19 | -0.15 | 0.28 | 0.01 | 0.06 | 0.05 | 0.04 | -0.04 | 0.004 | -0.25 | 0.72 | -0.09 | 0.04 | -0.73 |
x11 | -0.23 | 0.12 | -0.10 | -0.003 | 0.01 | 0.02 | -0.01 | 0.22 | 0.002 | 0.12 | -1.46* | -0.23 | 0.06 | 1.01 |
x12 | -0.01 | 0.00 | 0.19 | 0.01 | 0.07 | 0.08 | 0.0002 | 0.20 | 0.01 | -0.03 | -0.45 | -0.75 | 0.20 | 0.19 |
x13 | -0.29 | -0.01 | 0.22 | 0.01 | 0.16 | 0.12 | -0.01 | 0.37 | 0.02 | -0.03 | -0.28 | -0.52 | 0.29 | -0.01 |
x14 | -0.14 | 0.10 | -0.19 | -0.01 | -0.04 | -0.01 | -0.01 | 0.12 | -0.002 | 0.16 | -1.31 | -0.13 | 0.00 | 1.13 |
图1 盐碱土中AM真菌种的相对多度的冗余度分析(RDA)结果
Fig. 1 Ordination from a re- dundancy analysis (RDA) showing the relationship (P = 0.048) between the relative abundance of AM fungal spe- cies and soil factors
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