Occurrence of iron and associated bacterial populations in soils of a forested subtropical coastal catchment

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	Occurrence of iron and associated bacterial populations in soils of a forested subtropical coastal catchment
	Lin, Chaofeng ; Larsen, Eloise I. ; Grace, Peter R. ; Smith, James J.
发表期刊	EUROPEAN JOURNAL OF SOIL BIOLOGY
	2011
卷号	47 期号:5 页码:322-332
关键词	Forestry Management Seasonal Water-logging Tidal Flushing Bacterial Fe Cycling Subtropical Australia
产权排序	[Lin, CF; Larsen, EI; Grace, PR; Smith, JJ] Queensland Univ Technol, Biogeosci Discipline, Fac Sci & Technol, Inst Sustainable Resources, Brisbane, Qld 4001, Australia
通讯作者	Lin, CF, Chinese Acad Sci, Lab Environm Microbiol, Yantai Inst Coastal Zone Res, 17 Chunhui Rd, Yantai 264003, Peoples R China. [email protected]
英文摘要	Iron (Fe) biogeochemistry is potentially of environmental significance in plantation-forested, subtropical coastal ecosystems where soil disturbance and seasonal water-logging may lead to elevation of Fe mobilization and associated water quality deterioration. Using wet-chemical extraction and laboratory cultivation, we examined the occurrence of Fe forms and associated bacterial populations in diverse soils of a representative subtropical Australian coastal catchment (Poona Creek). Total reactive Fe was abundant throughout 0-30 cm soil cores, consisting primarily of crystalline forms in well-drained sand soils and water-logged loam soils, whereas in water-logged, low-clay soils, over half of total reactive Fe was present in poorly-crystalline forms due to organic and inorganic complexation, respectively. Forestry practices such as plantation clear-felling and replanting, seasonal water-logging and mineral soil properties significantly impacted soil organic carbon (C), potentially-bioavailable Fe pools and densities of S-, but not Fe-, bacterial populations. Bacterial Fe(III) reduction and abiotic Fe(II) oxidation, as well as chemolithotrophic S oxidation and aerobic, heterotrophic respiration were integral to catchment terrestrial Fe-C cycling. This work demonstrates bacterial involvement in terrestrial Fe cycling in a subtropical coastal circumneutral-pH ecosystem. (C) 2011 Elsevier Masson SAS. All rights reserved.
资助机构	Australian Research Council[LP0669786]; Forestry Plantations Queensland (FPQ); Institute for Sustainable Resources at the Queensland University of Technology (ISR, QUT).; QUT-China
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/5139
专题	海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
推荐引用方式 GB/T 7714	Lin, Chaofeng,Larsen, Eloise I.,Grace, Peter R.,et al. Occurrence of iron and associated bacterial populations in soils of a forested subtropical coastal catchment[J]. EUROPEAN JOURNAL OF SOIL BIOLOGY,2011,47(5):322-332.
APA	Lin, Chaofeng,Larsen, Eloise I.,Grace, Peter R.,&Smith, James J..(2011).Occurrence of iron and associated bacterial populations in soils of a forested subtropical coastal catchment.EUROPEAN JOURNAL OF SOIL BIOLOGY,47(5),322-332.
MLA	Lin, Chaofeng,et al."Occurrence of iron and associated bacterial populations in soils of a forested subtropical coastal catchment".EUROPEAN JOURNAL OF SOIL BIOLOGY 47.5(2011):322-332.

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