Vegetation and edaphic factors influence rapid establishment of distinct fungal communities on former coal-spoil sites
Vegetation and edaphic factors influence rapid establishment of distinct fungal communities on former coal-spoil sites
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DOI：
10.1016/j.funeco.2018.02.002
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发表时间：
2018-06-01
期刊：
影响因子：
2.9
通讯作者：
Griffith, Gareth Wyn
中科院分区：
文献类型：
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作者：
Detheridge, Andrew Paul;Comont, David;Griffith, Gareth Wyn
我们调查了南威尔士8个前煤矿遗址在22-27年前植被恢复后真菌群落的重建情况。将退化的煤矸石种植在牧羊草地上，将树苗种植在煤矸石上作为林地。土壤真菌种群元条形码（28S rRNA， D1区）显示林地和草地生境差异明显，但土壤变量对真菌群落结构的影响较弱。与根相关的担子菌在所有生境中占主导地位，林地中外生菌根真菌较多，草地中Clavariaceae/Hygrophoraceae （‘CHEG’真菌）较多。煤矸石草地群落组成与典型高地草地相似，表明繁殖体迁移不是限制因素。然而，真菌生物量（麦角甾醇）低3倍，反映了高容重和较差的结构。煤矸石土壤中真菌群落的重建是衡量恢复成功与否的重要指标。从真菌保护的角度来看，这些遗址是因农业集约化而导致栖息地丧失的蜡帽真菌的重要避难所。(C) 2018作者。Elsevier Ltd.出版。
We investigated re-establishment of fungal communities on eight former colliery sites in South Wales following revegetation 22-27 y earlier. Regraded bare coal-spoil was seeded to sheep-grazed grasslands, with saplings planted into coal-spoil for woodlands. Metabarcoding (28S rRNA, D1 region) of soil fungal populations showed that woodland and grassland habitats were clearly divergent but edaphic variables only weakly affected fungal community structure. Root-associated basidiomycetes dominated all habitats, with ectomycorrhizal fungi more abundant in woodlands and Clavariaceae/Hygrophoraceae ('CHEG' fungi) in grasslands. The composition of coal-spoil grassland communities resembled that of a typical upland grassland site, suggesting that propagule immigration was not a limiting factor. However, fungal biomass (ergosterol) was 3-fold lower, reflecting high bulk density and poor structure. Re-establishment of fungal communities in coal-spoil soils represents an important barometer of restoration success. From a fungal conservation perspective, such sites represent important refugia for waxcap fungi subject to habitat loss from agricultural intensification. (C) 2018 The Author(s). Published by Elsevier Ltd.