Volume 41 Issue 3
Sep.  2022
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LI Dan, WANG Jie-hui, HU De-yue, LI Xu-dong, ZHANG Zhong-feng, LI Xia, ZHANG Zhong-chao, LU Xing-hui, ZHAO Hong-xia. Relationship between Functional Traits of Fine Roots and Rhizosphere Soil Nutrients of 8 Ornamental Bamboos in Western Shandong Province[J]. JOURNAL OF BAMBOO RESEARCH, 2022, 41(3): 63-71. doi: 10.12390/jbr2022086
Citation: LI Dan, WANG Jie-hui, HU De-yue, LI Xu-dong, ZHANG Zhong-feng, LI Xia, ZHANG Zhong-chao, LU Xing-hui, ZHAO Hong-xia. Relationship between Functional Traits of Fine Roots and Rhizosphere Soil Nutrients of 8 Ornamental Bamboos in Western Shandong Province[J]. JOURNAL OF BAMBOO RESEARCH, 2022, 41(3): 63-71. doi: 10.12390/jbr2022086

Relationship between Functional Traits of Fine Roots and Rhizosphere Soil Nutrients of 8 Ornamental Bamboos in Western Shandong Province

doi: 10.12390/jbr2022086
  • Received Date: 2022-06-28
  • Underground ecological adaptation strategies of different bamboo species were investigated in order to reveal the relationship between functional traits of fine roots and rhizosphere soil of ornamental bamboo species in urban areas of northern China. Taking 8 ornamental bamboo species in Liaocheng Bamboo Garden of Shandong Province as research subjects, samples of root system and rhizosphere soil were obtained in consecutive soil layers of 10 cm in depth below the soil surface. The soil physical and chemical properties and the morphological parameters of fine roots were determined. The results showed that (1) The soil nutrient content of different bamboo species varied greatly and decreased with the increase of soil depth. The contents of organic matter, total N, available P and available K in the 0~10 cm soil layer of Phyllostachys bambusoides and Phyllostachys glauca were higher, but those of Phyllostachys aureosulcata McClure ‘Spectabilis’, Phyllostachys bissetii and Oligostachyum lubricum were lower. (2) The correlation between fine root morphological parameters of different bamboo species was significant, with clear vertical distribution pattern. Fine root biomass was significantly and positively correlated with total root length, root surface area, root volume, and fine root length density. Root tissue density was significantly and negatively correlated with specific root length, specific root surface area, and fine root length density. P. bambusoides and P. glauca had higher fine root biomass and root tissue density, while P. bissetii and O. lubricum had higher specific root length and specific root surface area. (3) Fine root biomass, total root length, root surface area, root volume, and fine root length density were significantly and positively correlated with contents of soil organic matter and total N. The content of available K made the highest contribution (34.2%) to the fine root morphological variation. P. bambusoides and P. glauca have good environmental adaptability and can be effectively used for urban greening in northern China. An appropriate increase in the fertility of top soil is beneficial to the growth of fine roots.
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