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DOI | 10.1016/j.foreco.2017.09.069 |
Micro vertical changes in soil pH and base cations over time after application of wood ash on forest soil | |
Hansen, Mette1; Bang-Andreasen, Toke2,3; Sorensen, Helle4; Ingerslev, Morten1 | |
2017-12-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 406 |
文章类型 | Article |
语种 | 英语 |
国家 | Denmark |
英文摘要 | Application of wood ash to forest soils is used to counteract acidification and to reintroduce nutrients otherwise lost by harvesting, particularly in silvicultural systems with intensified biomass removal. pH governs many essential processes like nutrient availability for plant uptake, heavy metal mobility and ecosystem functioning in forest soil, but changes in soil pH on a micro scale after ash application have not been reported. The aim of this study was therefore to investigate micro vertical changes in soil pH and base cations over time after application of wood ash on forest soil. A column experiment with repacked O- and A-horizon forest soil was constructed and treatments of 0, 3 and 9 t wood ash ha(-1) were applied on top of the soil in replicates of three. Soil cores were extracted from the columns monthly over one year for pH micro sensor measurements of O- and A-horizon (0-5 cm soil depth) and at four occasions (62, 152, 278 and 363 days after treatment) additional soil cores were extracted for base cation analysis. Results showed that ash application creates strong pH gradients ranging from pH 11 to 4.5 within the top 1-1.5 cm of the soil, with the highest variation within the first 50 days after application. Application of ash increases the nutrient availability. If micro scale variation is not considered, mean pH values can be a misleading indicator for the extreme conditions that can exists in the top part of the soil after ash application. |
英文关键词 | Soil pH Wood ash Micro sensor Base cations Forest |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416395800027 |
WOS关键词 | BACTERIAL COMMUNITY STRUCTURE ; FERTILIZATION ; CHEMISTRY ; ECOSYSTEMS ; GROWTH ; STAND ; BOREAL ; UPLAND ; SITES ; LOAM |
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/23980 |
专题 | 气候变化 |
作者单位 | 1.Univ Copenhagen, Dept Geosci & Nat Resource Management, Rolighedsvej 23, DK-1958 Frederiksberg C, Denmark; 2.Aarhus Univ, Dept Environm Sci, Frederiksborgvej 399, DK-4000 Roskilde, Denmark; 3.Univ Copenhagen, Dept Biol, Univ Pk 15, DK-2100 Copenhagen, Denmark; 4.Univ Copenhagen, Lab Appl Stat, Dept Math Sci, Univ Pk 5, DK-2100 Copenhagen, Denmark |
推荐引用方式 GB/T 7714 | Hansen, Mette,Bang-Andreasen, Toke,Sorensen, Helle,et al. Micro vertical changes in soil pH and base cations over time after application of wood ash on forest soil[J]. FOREST ECOLOGY AND MANAGEMENT,2017,406. |
APA | Hansen, Mette,Bang-Andreasen, Toke,Sorensen, Helle,&Ingerslev, Morten.(2017).Micro vertical changes in soil pH and base cations over time after application of wood ash on forest soil.FOREST ECOLOGY AND MANAGEMENT,406. |
MLA | Hansen, Mette,et al."Micro vertical changes in soil pH and base cations over time after application of wood ash on forest soil".FOREST ECOLOGY AND MANAGEMENT 406(2017). |
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