首页|Changes in climatic conditions drive variations in arbuscular mycorrhizal fungi diversity and composition in semi-arid oak forests
Changes in climatic conditions drive variations in arbuscular mycorrhizal fungi diversity and composition in semi-arid oak forests
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
Arbuscular mycorrhizal fungi(AMF)play a vital role in plant productivity and ecosystem functions.However,their responses to abiotic factors(i.e.,climate,physiography,and soil properties)are unknown,especially across climatic gradients and slope aspects in arid and semi-arid ecosys-tems.In this study,using 60 composite soil samples,direct and indirect effects of climate factors and slope aspects on AMF diversity,composition and spore density were studied.The findings indicate that climate has a more direct influ-ence on soil properties(P＜0.001)in comparison to slope aspect(P=0.449).In contrast,climate significantly affected AMF diversity and composition,with the highest diversity in dryer areas.Soil pH had the highest correlation with dif-ferent facets of AMF diversity.Structural equation modeling(SEM)indicated that only a small part of the variation in AMF diversity and spore density could be explained by cli-mate characteristics,slope aspect and soil properties.Based on SEM results,climate was the most important determi-nant of AMF diversity and spore density;slope aspect had a less critical role.The outputs suggest that variations in AMF diversity are derived by the direct effects of climate and the indirect effect of soil chemical properties.In addi-tion,with increasing dryness,sporulation and AMF diversity increased.
AMF diversity and compositionPhysiographic factorsSemi-arid ecosystemsZagros forest
Nahid Jafarian、Javad Mirzaei、Reza Omidipour、Yahya Kooch、Yanbo Hu
展开 >
Department of Forest Science,Faculty of Agriculture,Ilam University,Ilam 69315-516,Iran
Department of Range and Watershed Management,Faculty of Agriculture,Ilam University,Ilam 69315-516,Iran
Faculty of Natural Resources and Marine Sciences,Tarbiat Modares University,Noor 46417-76489,Mazandaran,Iran
NETL
NSTL
万方数据
