当前位置: 首页 > 文章 > 分根装置中接种AMF对1~2mm土壤水稳性团聚体的影响 植物营养与肥料学报 2010,16 (6) 1546-1550
Position: Home > Articles > Influence of arbuscular mycorrhizal fungi inoculation on 1-2mm soil water stable aggregates in split root system Journal of Plant Nutrition and Fertilizers 2010,16 (6) 1546-1550

分根装置中接种AMF对1~2mm土壤水稳性团聚体的影响

作  者:
彭思利;申鸿;袁俊吉;郭涛
单  位:
西南大学资源环境学院
关键词:
菌丝;球囊霉素相关土壤蛋白;通径分析
摘  要:
采用分根装置研究了丛枝菌根真菌侵染白三叶草(Trifolium repens)后对中性紫色土1~2 mm土壤水稳性团聚体(WSA1-2mm)含量的影响,并运用通径分析对其主要影响因子进行了量化比较。结果表明,接种Glomus intrara-dices、G.mosseae和G.etunicatum的菌根室土壤有机质、球囊霉素相关土壤蛋白(GRSP)含量均有增加的趋势;接种3种菌种都显著增加了菌根室土壤WSA1-2mm含量。通径分析结果表明,菌丝密度对WSA1-2mm含量有较大的直接效应(直接通径系数0.678),而GRSP对WSA1-2mm的影响系数较小,既有直接效应又有间接效应,但以直接效应为主。菌丝和GRSP对1~2mm土壤水稳性团聚体作用大小的差异可能源于二者作用机制的不同。
译  名:
Influence of arbuscular mycorrhizal fungi inoculation on 1-2mm soil water stable aggregates in split root system
作  者:
PENG Si-li,SHEN Hong,YUAN Jun-ji,GUO Tao(College of Resources and Environment,Southwest University,Chongqing 400716,China)
关键词:
hyphae;glomalin related soil protein;path analysis
摘  要:
A split root device experiment was used to investigate the influence of arbuscular mycorrhizal(AM) fungi inoculation on 1-2 mm soil water stability aggregates(WSA1-2mm) in the neutral purple soil while white clover(Trifolium repens) as the host plants.The results show that compared with the non-mycorrhial treatment,the contents of organic matter and glomalin related soil protein(GRSP) of mycorrhizal soil are slightly increased under the inoculation with Glomus intraradices,G.mosseae and G.etunicatum,while the WSA1-2mm contents of mycorrhizal soil are significantly increased.The results of path analysis indicate that the hyphae density has a high direct effect on WSA1-2mm(direct path coefficient is 0.678),GRSP has both direct and indirect effect,but through direct effect mainly.The different mechanism of these factors may account for the difference.

相似文章

计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊