DOI: 10.1016/j.foreco.2017.06.003
Scopus记录号: 2-s2.0-85020721944
论文题名: Intensive management decreases soil aggregation and changes the abundance and community compositions of arbuscular mycorrhizal fungi in Moso bamboo (Phyllostachys pubescens) forests
作者: Qin H. ; Chen J. ; Wu Q. ; Niu L. ; Li Y. ; Liang C. ; Shen Y. ; Xu Q.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 400 起始页码: 246
结束页码: 255
语种: 英语
英文关键词: Arbuscular mycorrhizal fungi
; Glomalin-related soil protein
; Inorganic fertilization
; Phyllostachys pubescens
; Tillage
Scopus关键词: Agglomeration
; Agricultural machinery
; Agriculture
; Bamboo
; Biomass
; Carbon
; Fatty acids
; Forestry
; Fungi
; Proteins
; Arbuscular mycorrhizal fungi
; Glomalin-related soil protein
; Inorganic fertilization
; Phyllostachys pubescens
; Tillage
; Soils
; abundance estimation
; arbuscular mycorrhiza
; bamboo
; belowground biomass
; community composition
; fertilizer application
; forest management
; fungus
; genetic analysis
; inorganic compound
; organic carbon
; protein
; soil aggregate
; soil amendment
; tillage
; Fungi
; Phyllostachys pubescens
英文摘要: Intensive management practices, such as inorganic fertilization, soil tillage and understory removal, have been widely used to increase bamboo products and economic return in Moso bamboo (Phyllostachys pubescens) forests. Arbuscular mycorrhizal fungi (AMF) play a critical role in soil aggregation and carbon cycling. However, little is known about the effects of such long-term soil disturbance on soil AMF community composition and abundance, and their linkage to aggregation in Moso bamboo forests. We investigated soil chemical properties, water-stable soil aggregates, glomalin-related soil protein (GRSP), AMF community composition and biomass across a chronosequence of long-term intensively managed Moso bamboo forests (0, 10, 15, 20 and 25 years of intensive management) in a subtropical region of China. Our results showed that intensive management resulted in significant decreases in soil pH and high accumulations of soil available N, P and K contents. Both soil AMF biomass (indicated by neutral lipid fatty acid) and total GRSP content were significantly decreased with increasing duration under intensive management. High-throughput sequencing showed that intensive management greatly altered soil AMF community composition, and soil available N, P and K were important driving factors shaping it. Soil macroaggregate (>250 μm) proportion decreased by 20–29% in bamboo forest soils after 15 years of intensive management. Soil macroaggregate proportion and organic C content were found significantly and positively correlated with AMF biomass and total GRSP content, respectively, indicating a high risk of soil erosion and organic C depletion when AMF biomass was reduced in long-term intensively managed bamboo forests. In conclusion, our study suggests that long-term intensive management induced alterations in abundance and community composition of AMF are responsible for the decrease in soil aggregation in the Moso bamboo forests. Alternative management practices, such as reduced tillage and organic amendments, are urgently needed to improve AMF community in order to enhance soil aggregation and C sequestration in Moso bamboo forests. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64234
Appears in Collections: 影响、适应和脆弱性
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作者单位: The State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Lin'an, Hangzhou, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Lin'an, Hangzhou, China; Agricultural Technology Extension Centre, Lin'an Municipal Bureau of Agriculture, Lin'an, Hangzhou, China
Recommended Citation:
Qin H.,Chen J.,Wu Q.,et al. Intensive management decreases soil aggregation and changes the abundance and community compositions of arbuscular mycorrhizal fungi in Moso bamboo (Phyllostachys pubescens) forests[J]. Forest Ecology and Management,2017-01-01,400