Comparison of root traits of Stipa krylovii and Allium polyrhizum under grazing in typical steppe.

Plant ecological adaptation is associated with root traits. To clarify the differences of root traits between two dominant species, and , under different grazing intensities (light, moderate, and heavy grazing intensities), we measured root traits, including root length, root surface area, root diam...

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Bibliographic Details
Published inYing yong sheng tai xue bao Vol. 33; no. 2; p. 360
Main Authors Li, Tian-Liang, Huo, Guang-Wei, Wu, Yun-Na
Format Journal Article
LanguageChinese
Published China 01.02.2022
Subjects
Allium
China
Grassland
Herbivory
Phenotype
Plant Roots
Poaceae
China
grazing
typical steppe
root
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Summary:Plant ecological adaptation is associated with root traits. To clarify the differences of root traits between two dominant species, and , under different grazing intensities (light, moderate, and heavy grazing intensities), we measured root traits, including root length, root surface area, root diameter, root volume, root tips, root bifurcations, specific root length, and specific surface area. We analyzed the root morphological patterns of tip proportion, length proportion, surface proportion and volume proportion of both species, and examined their ecological adaptation strategies under grazing. The results showed that grazing inhibited aboveground and belowground growth of , but promoted belowground growth of . In addition, the effects of grazing on belowground part of was greater than aboveground part. These results indicated that the growth of was maintained by the aboveground part and that of was maintained by the belowground part under grazing. Root length, root bifurcations, root surface area and root
ISSN:1001-9332
DOI:10.13287/j.1001-9332.202201.005