基于 QMEC 分析的青藏高原不同类型冰川前缘地土壤微生物功能潜力

Research output: Contribution to journalJournal articleResearchpeer-review

  • Jie Jie Zhang
  • Priemé, Anders
  • Xian Ke Chen
  • Han Chang Zhou
  • Qin Wei Zhang
  • Xu Liang Zhuang
  • Xiang Qin
  • Guo Qiang Zhuang
  • An Zhou Ma

Soil microorganisms dominate the biogeochemical cycles of elements in glacier forelands, which continue to expand due to the climate warming. We analyzed the soil microbial functional characteristics among three types of glacier forelands on the Tibetan Plateau: Yulong Glacier (Y), a temperate glacier; Tianshan Urumqi Glacier No. 1 (T), a sub-continental glacier; and Laohugou Glacier No. 12 (L), a continental glacier. Here, soil microbial functional genes were quantified using quantitative microbial element cycling technology (QMEC). We found that, in the three glacier forelands, the abundances of soil microbial functional genes related to hemicellulose degradation and reductive acetyl-CoA pathway were highest compared with other carbon-related functional genes. The main nitrogen cycling genes were involved in ammonification. The functional genes of the phosphorus cycle and sulfur cycle were related to organic phosphate mineralization and sulfur oxidation. Furthermore, the soils of the temperate glacier foreland with better hydrothermal conditions had the most complex microbial functional gene structure and the highest functional potentials, followed by those of the soils of continental glacier foreland with the driest environment. These significant differences in soil microbial functional genes among the three types of glacier forelands verified the impacts of geographic difference on microbial functional characteristics, as well as providing a basis for the study of soil microbial functions and biogeochemical cycles in glacier forelands.

Translated title of the contributionQMEC-based Analysis of the Soil Microbial Functional Potentials across Different Tibetan Plateau Glacier Forelands
Original languageChinese (Traditional)
JournalHuanjing Kexue/Environmental Science
Volume44
Issue number1
Pages (from-to)512-519
Number of pages8
ISSN0250-3301
DOIs
Publication statusPublished - 2023

Bibliographical note

CENPERM[2023].
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