globalchange  > 气候减缓与适应
DOI: 10.1007/s10533-017-0380-3
Scopus记录号: 2-s2.0-85029903270
论文题名:
Organic matter distribution and retention along transects from hilltop to kettle hole within an agricultural landscape
作者: Nitzsche K.N.; Kaiser M.; Premke K.; Gessler A.; Ellerbrock R.H.; Hoffmann C.; Kleeberg A.; Kayler Z.E.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 136, 期:1
起始页码: 47
结束页码: 70
语种: 英语
英文关键词: Depressional wetland ; Erosion ; Land management ; Organo-mineral interaction ; Soil organic matter ; Stable isotopes
Scopus关键词: agricultural land ; cation ; erosion ; isotopic composition ; kettle hole ; land management ; organic matter ; soil organic matter ; spatiotemporal analysis ; stable isotope ; transect ; wetland
英文摘要: In agricultural landscapes, the spatio-temporal distribution of organic matter (OM) varies greatly across landscape structures and soil types. We investigated patterns of organic carbon (OC) content, polyvalent cations, and isotopic values for specific OM fractions along transects spanning topographic positions from erosional to depositional areas, including aquatic sediments within a single kettle hole. We hypothesized different drivers exist at different scales. At the transect scale, we hypothesized (1) landscape form and land management to explain patterns of isotopic and OC content from different OM fractions. At the aggregate scale, (2) we expected different OM-mineral associations to explain stabilized OM. We also hypothesized, (3) that shallow sediment δ13C and δ15N of the kettle hole reflected different terrestrial sources. We found that distinct differences in the OM turnover rates existed between the fractions suggesting that different processes are affecting the transformation rates that are recorded in the isotopic composition patterns. Erosion along with plant productivity drive mineral-associated fractions over the transect, while microbial decomposition and slurry influence freely available and aggregated OM fractions. The type and magnitude of OM-mineral associations changed along the transect while binding OM of different decomposition status. OM in mineral-associated fractions in kettle hole sediments were derived from clay- and silt-sized particles from the field, whereas OM in freely available and aggregated fractions potentially originated from macrophytes. We conclude that kettle holes constitute important sinks for terrestrial OM across the landscape. © 2017, Springer International Publishing AG.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83226
Appears in Collections:气候减缓与适应
气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: Leibniz Centre for Agricultural Landscape Research (ZALF), Institute of Landscape Biogeochemistry, Eberswalder Str. 84, Muencheberg, Germany; Department of Environmental Chemistry, University of Kassel, Nordbahnhofstr. 1a, Witzenhausen, Germany; Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Chemical Analytic and Biogeochemistry, Mueggelseedamm 310, Berlin, Germany; Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Zuercherstrasse 111, Birmensdorf, Switzerland; Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, Germany; Leibniz Centre for Agricultural Landscape Research (ZALF), Institute of Soil Landscape Research, Eberswalder Str. 84, Muencheberg, Germany; Leibniz Centre for Agricultural Landscape Research (ZALF), Agricultural Landscape Data Centre, Eberswalder Str. 84, Muencheberg, Germany; State Laboratory Berlin-Brandenburg, Department Geology, Soil, Waste, Stahnsdorfer Damm 77, Kleinmachnow, Germany; Lawrence Livermore National Laboratory, Center for Accelerator Mass Spectrometry, Livermore, CA, United States; Department of Soil and Water Systems, University of Idaho, Moscow, ID, United States; Research Institute for Humanity and Nature (RIHN), 457-4 Motoyama, Kamigamo, Kita-ku, Kyoto, Japan

Recommended Citation:
Nitzsche K.N.,Kaiser M.,Premke K.,et al. Organic matter distribution and retention along transects from hilltop to kettle hole within an agricultural landscape[J]. Biogeochemistry,2017-01-01,136(1)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Nitzsche K.N.]'s Articles
[Kaiser M.]'s Articles
[Premke K.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Nitzsche K.N.]'s Articles
[Kaiser M.]'s Articles
[Premke K.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Nitzsche K.N.]‘s Articles
[Kaiser M.]‘s Articles
[Premke K.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.