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	Organic matter enrichment and aggregate stabilization in a severely degraded ultisol after reforestation
	Bin, Zhang; Peng Xin-Hua
刊名	PEDOSPHERE
	2006-12-01
卷号	16期号:6页码:699-706
关键词	aggregate stability reforestation organic matter fractions soil C sequestration
ISSN号	1002-0160
通讯作者	Bin, Zhang(bzhang@issas.ac.cn)
英文摘要	Three types of soils: an eroded barren soil under continuous fallow, an eroded soil transplanted with Lespedeza shrubs (Lespedeza bicolor), and an eroded soil transplanted with camphor tree (Cinnamomum camphora) were investigated to quantify organic matter pools and aggregates in reforested soils using physical fractionation techniques and to determine aggregate stability in relation to the enrichment of soil organic carbon (SOC). Soil organic matter (SOM) was physically fractionalized into free particulate organic matter (fPOM), occluded particulate organic matter (oPOM), and mineralassociated organic matter (mOM). The SOM was concentrated on the surface soil (0-5 cm), with an average C sequestration rate of 20-25 g C m(-2) year(-1) over 14 years. As compared to the eroded barren land, organic C content of fPOM, oPOM, and mOM fractions of the soil under Lespedeza and under camphor tree increased 12-15, 45-54, and 3.1-3.5 times, respectively. A linear relationship was found between aggregate stability and organic C (r(2) = 0.45, P < 0.01), oPOM (r(2) = 0.34, P < 0.05), and mOM (r(2) = 0.46, P < 0.01) of aggregates. The enrichment of organic C improved aggregate stability of the soil under Lespedeza but not that under camphor tree. However, further research is needed on the physical and biological processes involved in the interaction of soil aggregation and SOC sequestration in ecosystem.
收录类别	SCI
WOS关键词	SOIL-STRUCTURE ; PHYSICAL FRACTIONATION ; SUBTROPICAL CHINA ; CARBON ; PARTICULATE ; MANAGEMENT ; CULTIVATION ; MECHANISMS ; STABILITY
WOS研究方向	Agriculture
WOS类目	Soil Science
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000243943400003
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558586
专题	南京土壤研究所
通讯作者	Bin, Zhang
作者单位	Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Bin, Zhang,Peng Xin-Hua. Organic matter enrichment and aggregate stabilization in a severely degraded ultisol after reforestation[J]. PEDOSPHERE,2006,16(6):699-706.
APA	Bin, Zhang,&Peng Xin-Hua.(2006).Organic matter enrichment and aggregate stabilization in a severely degraded ultisol after reforestation.PEDOSPHERE,16(6),699-706.
MLA	Bin, Zhang,et al."Organic matter enrichment and aggregate stabilization in a severely degraded ultisol after reforestation".PEDOSPHERE 16.6(2006):699-706.

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