TY - JOUR
T1 - The dynamics of phosphorus fractions and the factors driving phosphorus cycle in Zoige Plateau peatland soil
AU - Luo, Ling
AU - Ye, Haoyang
AU - Zhang, Danhua
AU - Gu, Ji Dong
AU - Deng, Ouping
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/9
Y1 - 2021/9
N2 - Phosphorus (P) is an essential nutrient, limiting plant growth and microbial activity in many ecosystems. However, a few studies have been conducted to investigate P dynamics and the factors driving P dynamics in peatland soils. Therefore, this study chose Zoige Plateau peatland (the largest peatland in China) to reveal P dynamics and the possible driving factors through fractionating soil P and investigating a series of abiotic and biotic factors. It is found that season, peatland type, and soil depth could strongly affect P dynamics. H2O–P and NaHCO3–P (labile P) had lower content, while NaOH–P, HCl–P, Mix-P, and Residual-P (non-labile P) were the dominant fractions. Besides, the sum of P fractions was higher than the traditional measurement of total P, suggesting P storage might be underestimated in peatland soils. Moreover, it is observed that biotic factors affected P fractions more than abiotic factors, and fungi affected refractory P more than bacteria. This study provides essential information for understanding P cycling in peatland soils and emphasizes specific microbes related to P cycling, which should be paid more attention to in the future.
AB - Phosphorus (P) is an essential nutrient, limiting plant growth and microbial activity in many ecosystems. However, a few studies have been conducted to investigate P dynamics and the factors driving P dynamics in peatland soils. Therefore, this study chose Zoige Plateau peatland (the largest peatland in China) to reveal P dynamics and the possible driving factors through fractionating soil P and investigating a series of abiotic and biotic factors. It is found that season, peatland type, and soil depth could strongly affect P dynamics. H2O–P and NaHCO3–P (labile P) had lower content, while NaOH–P, HCl–P, Mix-P, and Residual-P (non-labile P) were the dominant fractions. Besides, the sum of P fractions was higher than the traditional measurement of total P, suggesting P storage might be underestimated in peatland soils. Moreover, it is observed that biotic factors affected P fractions more than abiotic factors, and fungi affected refractory P more than bacteria. This study provides essential information for understanding P cycling in peatland soils and emphasizes specific microbes related to P cycling, which should be paid more attention to in the future.
KW - Labile P
KW - Non-labile P
KW - P fractions
KW - Phosphatase
KW - Zoige Plateau peatland
UR - http://www.scopus.com/inward/record.url?scp=85103958535&partnerID=8YFLogxK
U2 - 10.1016/j.chemosphere.2021.130501
DO - 10.1016/j.chemosphere.2021.130501
M3 - 文章
C2 - 34126697
AN - SCOPUS:85103958535
SN - 0045-6535
VL - 278
JO - Chemosphere
JF - Chemosphere
M1 - 130501
ER -