Afforestation of cropland fundamentally alters the soil fungal community
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Afforestation of cropland fundamentally alters the soil fungal community Jinliang Liu & Thi hien Le & Huinan Zhu & Yuan Yao & Hailan Zhu & Yang Cao & Zhong Zhao
Received: 15 November 2019 / Accepted: 8 October 2020 # Springer Nature Switzerland AG 2020
Abstract Aims The objective of this study was to analyze the responses of the soil fungal community to the afforestation of cropland with single and mixed tree species. Methods We investigated changes in soil fungal community composition, diversity, structure and functional groups in the topsoil (0–20 cm) following afforestation. Six forest types were analyzed in this study: Robinia pseudoacacia (RP), Platycladus orientalis (PO), Pinus Responsible Editor: Luz E. de-Bashan. Jinliang Liu and Thi hien Le contributed equally to this work. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11104-020-04739-2) contains supplementary material, which is available to authorized users. J. Liu : T. Le : H. Zhu : Y. Yao : H. Zhu : Y. Cao : Z. Zhao (*) Key Comprehensive Laboratory of Forestry, College of Forestry, Northwest A&F University, Shaanxi Province 712100 Yangling, People’s Republic of China e-mail: [email protected] e-mail: [email protected]
tabuliformis (PT), Robinia pseudoacacia + Platycladus orientalis (RPPO), Robinia pseudoacacia + Pinus tabuliformis (RPPT), and Platycladus orientalis + Pinus tabuliformis (POPT). Results Soil fungal community composition and diversity significantly varied among cropland and forestland samples. Afforestation generally reduced soil fungal diversity and altered functional groups, and these variations were mainly mediated by tree species. Rare genera play an important role in the soil fungal network among cropland and forestland samples. Soil available phosphorus (AP) explained the largest portion of the variance in the soil fungal community. Soil available nutrients and microclimate were significantly associated with soil fungal diversity and richness. Conclusions Our observations indicate that afforestation of cropland fundamentally restructures soil fungal community composition, structure, diversity and functional groups. Nutrient availability was a principal factor regulating fungal community composition following afforestation.
J. Liu : T. Le : H. Zhu : Y. Yao : H. Zhu : Y. Cao : Z. Zhao
Keywords Afforestation . Pure and mixed tree species . Soil fungal community . Loess Plateau
State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, College of Forestry, Northwest A&F University, 712100 Yangling, People’s Republic of China
Introduction
J. Liu : T. Le : H. Zhu : Y. Yao : H. Zhu : Y. Cao : Z. Zhao Key Laboratory of Silviculture on the Loess Plateau State Forestry Administration, College of Forestry, Northwest A&F University, 712100 Yangling, People’s Republic of China
Fungi, a dominant microbiota component, play key roles in organic material decomposition, nutrient cycling and forest ecosystem functioning (ChavezVergara et al. 2016; Li
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