[1]WANG Yue-hai,XU Jing-wei,HAN You-ji,et al.Characteristics of Root Morphology of Five Salt Tolerance Species of Seedlings in Yellow River Delta Area[J].Research of Soil and Water Conservation,2014,21(01):261-266.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 01
Page number:
261-266
Column:
Public date:
2014-02-28
- Title:
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Characteristics of Root Morphology of Five Salt Tolerance Species of Seedlings in Yellow River Delta Area
- Author(s):
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WANG Yue-hai1, XU Jing-wei1, HAN You-ji1, SI Qing-zhu2, JIANG Fu-cheng2
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1. Shandong Province Academy of Forestry Science, Ji’nan 250014, China;
2. Yellow River Delta Producing Base of Jinan Military Area Command, Dongying, Shandong 257231, China
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- Keywords:
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Yellow River Delta; salt tolerance species; seedling; root morphological characteristics
- CLC:
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S728.5
- DOI:
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- Abstract:
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Five species of tree seedling planted for 2 years including Fraxinnus chinensis Roxb, Ulmus pumila Linn.,Acer truncatum Bunge,Salix americana Linn.,Ailanthus altissima Swingle root morphological characteristics for root length, root quantity, root surface area, root volume, root fractal dimension and root order were analyzed. The result showed that root joint number, root length, root surface area, root tip length and root fractal dimension all demonstrated the same comparative sequence: Fraxinnus chinensis Roxb > Ulmus pumila Linn. > Acer truncatum Bunge > Salix americana Linn. > Ailanthus altissima Swingle. Root quantity and root length of five species of seedling were consistent with each other, slim root(d≤5 mm)quantity and slim root length were the largest proportion of the total root system, slim root carried on the main uptaked function. Sum of root length of 1~3 root order for five species of seedlings accounted for more than 70 percent of each species total root length; sum of root joint number of 1~4 root order for five species of seedlings accounted for more than 80 percent of each species total root joint number. Roots of 1~4 root order of Fraxinnus chinensis Roxb and Ulmus pumila Linn. were the main proportion of total root system of each species; roots of 0~2 root order of Salix americana Linn. and Ailanthus altissima Swingle were the main proportion of total root system of each species. Roots of Salix americana Linn. and Ailanthus altissima Swingle were strong, especially the wide root(d>5 mm) surface and volume were the large proportion. According to the root system structure parameter and root order analysis result, five species of seedling roots strong degree and generative ability sequences were in the sequence of Fraxinnus chinensis Roxb > Ulmus pumila Linn. > Acer truncatum Bunge > Salix americana Linn. > Ailanthus altissima Swingle, Fraxinnus chinensis Roxb and Ulmus pumila Linn. Seedling root quantities were large, their root orders were high, their lateral roots were prosperous and generative, uptaked and utilization for water and mineral elements from soil of the lateral root were more efficient.