Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.06.034 |
Nutrient optimization of tree growth alters structure and function of boreal soil food webs | |
Maaroufi, Nadia, I1,2; Palmqvist, Kristin3; Bach, Lisbet H.3; Bokhorst, Stef4; Liess, Antonia3,5; Gundale, Michael J.2; Kardol, Paul2; Nordin, Annika6; Meunier, Cedric L.3,7 | |
2018-11-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 428页码:46-56 |
文章类型 | Article |
语种 | 英语 |
国家 | Sweden; Netherlands; Germany |
英文摘要 | Nutrient optimization has been proposed as a way to increase boreal forest production, and involves chronic additions of liquid fertilizer with amounts of micro- and macro-nutrients adjusted annually to match tree nutritional requirements. We used a short-term (maintained since 2007) and a long-term (maintained since 1987) fertilization experiment in northern Sweden, in order to understand nutrient optimization effects on soil microbiota and mesofauna, and to explore the relationships between plant litter and microbial elemental stoichiometry. Soil microbes, soil fauna, and aboveground litter were collected from the control plots, and short- and long-term nutrient optimization plots. Correlation analyses revealed no relationships between microbial biomass and litter nutrient ratios. Litter C:N, C:P and N:P ratios declined in response to both optimization treatments; while only microbial C:P ratios declined in response to long-term nutrient optimization. Further, we found that both short- and long-term optimization treatments decreased total microbial, fungal, and bacterial PLFA biomass and shifted the microbial community structure towards a lower fungi:bacterial ratio. In contrast, abundances of most fungal- and bacterial-feeding soil biota were little affected by the nutrient optimization treatments. However, abundance of hemi-edaphic Collembola declined in response to the long-term nutrient optimization treatment. The relative abundances (%) of fungal-feeding and plant-feeding nematodes, respectively, declined and increased in response to both short-term and long-term treatments; bacterial-feeding nematodes increased relative to fungal feeders. Overall, our results demonstrate that long-term nutrient optimization aiming to increase forest production decreases litter C:N, C:P and N:P ratios, microbial C:P ratios and fungal biomass, whereas higher trophic levels are less affected. |
英文关键词 | Nematode Mesofauna Microbes Boreal forest Ecological stoichiometry Leaf litter quality Nutrient ratios |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000440770600006 |
WOS关键词 | ANTHROPOGENIC NITROGEN DEPOSITION ; STABLE-ISOTOPE RATIOS ; MICROBIAL BIOMASS ; NORWAY SPRUCE ; COMMUNITY STRUCTURE ; ECOSYSTEM PROCESSES ; FOREST ECOSYSTEMS ; SWEDISH FORESTS ; FERTILIZATION ; STOICHIOMETRY |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23689 |
专题 | 气候变化 |
作者单位 | 1.Swedish Univ Agr Sci SLU, Dept Ecol, Uppsala, Sweden; 2.Swedish Univ Agr Sci SLU, Dept Forest Ecol & Management, Umea, Sweden; 3.Umea Univ, Dept Ecol & Environm Sci EMG, Umea, Sweden; 4.Vrije Univ, Dept Ecol Sci, Vrije Universitek, Netherlands; 5.Halmstad Univ, Sch Business Sci & Engn, Rydberg Lab Appl Sci, Halmstad, Sweden; 6.Swedish Univ Agr Sci SLU, Dept Forest Genet & Plant Physiol, UPSC, Umea, Sweden; 7.AWI, Helmholtz Zentrum Polar & Meeresforsch, Biol Anstalt Helgoland, Helgoland, Germany |
推荐引用方式 GB/T 7714 | Maaroufi, Nadia, I,Palmqvist, Kristin,Bach, Lisbet H.,et al. Nutrient optimization of tree growth alters structure and function of boreal soil food webs[J]. FOREST ECOLOGY AND MANAGEMENT,2018,428:46-56. |
APA | Maaroufi, Nadia, I.,Palmqvist, Kristin.,Bach, Lisbet H..,Bokhorst, Stef.,Liess, Antonia.,...&Meunier, Cedric L..(2018).Nutrient optimization of tree growth alters structure and function of boreal soil food webs.FOREST ECOLOGY AND MANAGEMENT,428,46-56. |
MLA | Maaroufi, Nadia, I,et al."Nutrient optimization of tree growth alters structure and function of boreal soil food webs".FOREST ECOLOGY AND MANAGEMENT 428(2018):46-56. |
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