Detail publikace

Physically separated soil organic matter pools as indicators of carbon and nitrogen change under long-term fertilization in a Chinese Mollisol

MUSTAFA, A. SAEED, Q. NESHAD, M.T.K. NAN, S.HONGJUN, G. PING, Y. NAVEED, M.MINGGANG, X. DELAGO, A.N.

Originální název

Physically separated soil organic matter pools as indicators of carbon and nitrogen change under long-term fertilization in a Chinese Mollisol

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Isolation and quantification of soil organic matter (SOM) pools under the influence of management practices is needed for assessing the changes in soil fertility. However, the knowledge on how the active, slow and passive pools of SOM respond to long-term fertilization is scarce. Therefore, the present study was designed to isolate the active, slow, and passive pools of soil organic matter through physical fractionation under long-term fertilization. The treatments included; inorganic fertilization (NPK) either alone or combined with a normal dose of manure (MNPK) or a high dose of manure (1.5MNPK) with an unfertilized control (CK) for comparison. The isolated pools were analyzed and compared for their sizes, SOC and TN storage and their contribution to total SOC and TN sequestration. The results revealed that the fertilization enhanced the active, slow and passive pools of SOC and TN and their storage under applied treatments was patterned as 1.5MNK > MNPK > NPK > CK. The highest SOC and TN storage was observed in the active pool, while, greater response to fertilization (in terms of response ratio) was associated with the slow pool. Results show that fertilization enhanced the proportion of SOC and TN stocks to bulk SOC and TN stocks in active and slow pools, while a diminishing trend was found for passive pools. Moreover, the highest response ratio was found for TN sequestration in each pool as compared to SOC, suggesting preferential accumulation of TN over SOC in the studied soil. Nevertheless, the highest SOC and TN storage took place in the active pool. The slow pool showed greater response to applied fertilizer, with the highest values being observed under 1.5MNPK. This study concluded that long-term manure + inorganic fertilization is crucial for enhancing C and N sequestration by altering the size and response of SOM pools.

Klíčová slova

Physical fractionation; SOM pools; Climate change; Mollisol; SOM stability

Autoři

MUSTAFA, A.; SAEED, Q.; NESHAD, M.T.K.; NAN, S.;HONGJUN, G.; PING, Y.; NAVEED, M.;MINGGANG, X.; DELAGO, A.N.

Vydáno

1. 1. 2023

Nakladatel

ACADEMIC PRESS INC ELSEVIER SCIENCE

Místo

SAN DIEGO

ISSN

0013-9351

Periodikum

ENVIRONMENTAL RESEARCH

Ročník

216

Číslo

2023

Stát

Spojené státy americké

Strany od

114626

Strany do

114634

Strany počet

9

URL

https://www.sciencedirect.com/science/article/pii/S0013935122019533

BibTex

@article{BUT197046,
  author="MUSTAFA, A. and SAEED, Q. and NESHAD, M.T.K. and NAN, S. and HONGJUN, G. and PING, Y. and NAVEED, M. and MINGGANG, X. and DELAGO, A.N.",
  title="Physically separated soil organic matter pools as indicators of carbon and nitrogen change under long-term fertilization in a Chinese Mollisol",
  journal="ENVIRONMENTAL RESEARCH",
  year="2023",
  volume="216",
  number="2023",
  pages="9",
  doi="10.1016/j.envres.2022.114626",
  issn="0013-9351",
  url="https://www.sciencedirect.com/science/article/pii/S0013935122019533"
}