Revealing the nutrient limitation and cycling for microbes under forest management practices in the Loess Plateau – Ecological stoichiometry

Jiaoyang Zhang, Xiaomei Yang, Yahui Song, Hongfei Liu, Guoliang Wang, Sha Xue*, Guobin Liu, Coen J. Ritsema, Violette Geissen

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Forest management practices are commonly used in plantation forestry to obtain renewable energy and harvest biomass, in addition to maintaining the ecological environment, by changing the flow of carbon (C) and nutrients in the food webs of terrestrial ecosystems. To identify which forest management practices, alleviate soil nutrient limitation and impact stoichiometric homeostasis in relation to microbes, we used a Pinus tabuliformis plantation in the Loess Plateau where forest management practices were conducted since 1999. Five forest management practices were implemented: two at the forest level (P. tabuliformis with and without ground litter, CK, LRL) and three of different vegetation restorations after clear-cutting (P. tabuliformis seedlings (SPL), grass land (GL), and shrub land (SL)). Generally, the threshold elemental ratios for carbon:nitrogen (TERC:N; 7.77) and carbon:phosphorus (TERC:P; 44.37) were lower than the ratios influenced by forest management practices. The forest management practices significantly influenced ecoenzymatic activity and the ratios of ecoenzymes; however, the scale of the ecoenzyme activities for acquiring both organic N and organic P to that for acquiring C still follow the global pattern. The regression coefficients of C:N and C:P between the soil and microbial community at 0–20 cm and 20–40 cm depths were also influenced by these practices. Thus, the influence of forest management practices on the soil microbial community was limited by N and P in the Loess Plateau. The soil microbial community changed ecoenzymatic activities and ratios of ecoenzymes and even changed microbial community in order to balance elemental limitations in the soil. Finally, forest management practices have a minimal impact on the stoichiometric homeostasis of the microbial community at our study site.

Original languageEnglish
Article number114108
JournalGeoderma
Volume361
DOIs
Publication statusPublished - 1 Mar 2020

Fingerprint

nutrient limitation
stoichiometry
loess
nutrient cycling
forest management
management practice
plateaus
plateau
microorganisms
microbial communities
nutrients
microbial community
Pinus tabuliformis
homeostasis
soil
carbon
plantation forestry
ecological restoration
clearcutting
renewable energy sources

Keywords

  • Ecological environment
  • Ecological stoichiometry
  • Forest management practices
  • Stoichiometric homeostasis
  • Threshold elemental ratio

Cite this

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title = "Revealing the nutrient limitation and cycling for microbes under forest management practices in the Loess Plateau – Ecological stoichiometry",
abstract = "Forest management practices are commonly used in plantation forestry to obtain renewable energy and harvest biomass, in addition to maintaining the ecological environment, by changing the flow of carbon (C) and nutrients in the food webs of terrestrial ecosystems. To identify which forest management practices, alleviate soil nutrient limitation and impact stoichiometric homeostasis in relation to microbes, we used a Pinus tabuliformis plantation in the Loess Plateau where forest management practices were conducted since 1999. Five forest management practices were implemented: two at the forest level (P. tabuliformis with and without ground litter, CK, LRL) and three of different vegetation restorations after clear-cutting (P. tabuliformis seedlings (SPL), grass land (GL), and shrub land (SL)). Generally, the threshold elemental ratios for carbon:nitrogen (TERC:N; 7.77) and carbon:phosphorus (TERC:P; 44.37) were lower than the ratios influenced by forest management practices. The forest management practices significantly influenced ecoenzymatic activity and the ratios of ecoenzymes; however, the scale of the ecoenzyme activities for acquiring both organic N and organic P to that for acquiring C still follow the global pattern. The regression coefficients of C:N and C:P between the soil and microbial community at 0–20 cm and 20–40 cm depths were also influenced by these practices. Thus, the influence of forest management practices on the soil microbial community was limited by N and P in the Loess Plateau. The soil microbial community changed ecoenzymatic activities and ratios of ecoenzymes and even changed microbial community in order to balance elemental limitations in the soil. Finally, forest management practices have a minimal impact on the stoichiometric homeostasis of the microbial community at our study site.",
keywords = "Ecological environment, Ecological stoichiometry, Forest management practices, Stoichiometric homeostasis, Threshold elemental ratio",
author = "Jiaoyang Zhang and Xiaomei Yang and Yahui Song and Hongfei Liu and Guoliang Wang and Sha Xue and Guobin Liu and Ritsema, {Coen J.} and Violette Geissen",
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doi = "10.1016/j.geoderma.2019.114108",
language = "English",
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Revealing the nutrient limitation and cycling for microbes under forest management practices in the Loess Plateau – Ecological stoichiometry. / Zhang, Jiaoyang; Yang, Xiaomei; Song, Yahui; Liu, Hongfei; Wang, Guoliang; Xue, Sha; Liu, Guobin; Ritsema, Coen J.; Geissen, Violette.

In: Geoderma, Vol. 361, 114108, 01.03.2020.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Revealing the nutrient limitation and cycling for microbes under forest management practices in the Loess Plateau – Ecological stoichiometry

AU - Zhang, Jiaoyang

AU - Yang, Xiaomei

AU - Song, Yahui

AU - Liu, Hongfei

AU - Wang, Guoliang

AU - Xue, Sha

AU - Liu, Guobin

AU - Ritsema, Coen J.

AU - Geissen, Violette

PY - 2020/3/1

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KW - Ecological environment

KW - Ecological stoichiometry

KW - Forest management practices

KW - Stoichiometric homeostasis

KW - Threshold elemental ratio

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DO - 10.1016/j.geoderma.2019.114108

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