Arid
DOI10.1071/SR12250
Distribution of organic carbon and nitrogen in soil aggregates of aspen (Populus simonii Carr.) woodlands in the semi-arid Loess Plateau of China
Gao, Hailong; Qiu, Liping; Zhang, Yanjiang; Wang, Liaohong; Zhang, Xingchang; Cheng, Jimin
通讯作者Qiu, Liping
来源期刊SOIL RESEARCH
ISSN1838-675X
EISSN1838-6768
出版年2013
卷号51期号:5页码:406-414
英文摘要

The distribution and turnover of organic carbon (OC) and nitrogen (N) associated with aggregates in soils is critical for understanding the behaviour of C and N in soils. We collected soil samples from aspen (Populus simonii Carr.) woodland in the semi-arid Loess Plateau of China to investigate the distribution of aggregate-associated OC and N. The distribution of aggregates and aggregate-associated OC and N were measured, and OC and N stocks in each aggregate fraction were calculated. Across the sites and soil depths, microaggregates and the silt + clay fraction dominated the distribution of soil aggregates, which varied with site. Organic C and N accumulated mainly in the macro- and micro-aggregate fractions in loamy soils but in the silt + clay fractions in sandy soils. The OC and N stocks in the bulk soil of aspen woodland were determined by the OC and N stocks associated with silt + clay fraction. The results of this study indicate that soil texture may play an important role in assessing the distributions of soil OC and N in both bulk soils and aggregate size fractions in aspen woodland, especially in semi-arid regions. Furthermore, the establishment of aspen woodland would result in greater accumulation of OC and N in loam soils than in sandy soils.


英文关键词aggregates aspen woodland Loess Plateau nitrogen organic carbon
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000324879900004
WOS关键词LAND-USE ; CONVENTIONAL-TILLAGE ; PHYSICAL PROTECTION ; MICROBIAL BIOMASS ; N-MINERALIZATION ; HILLY AREA ; MATTER ; DYNAMICS ; ECOSYSTEM ; FOREST
WOS类目Soil Science
WOS研究方向Agriculture
来源机构西北农林科技大学
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/179979
作者单位Northwest A&F Univ, Inst Soil & Water Convers, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China
推荐引用方式
GB/T 7714
Gao, Hailong,Qiu, Liping,Zhang, Yanjiang,et al. Distribution of organic carbon and nitrogen in soil aggregates of aspen (Populus simonii Carr.) woodlands in the semi-arid Loess Plateau of China[J]. 西北农林科技大学,2013,51(5):406-414.
APA Gao, Hailong,Qiu, Liping,Zhang, Yanjiang,Wang, Liaohong,Zhang, Xingchang,&Cheng, Jimin.(2013).Distribution of organic carbon and nitrogen in soil aggregates of aspen (Populus simonii Carr.) woodlands in the semi-arid Loess Plateau of China.SOIL RESEARCH,51(5),406-414.
MLA Gao, Hailong,et al."Distribution of organic carbon and nitrogen in soil aggregates of aspen (Populus simonii Carr.) woodlands in the semi-arid Loess Plateau of China".SOIL RESEARCH 51.5(2013):406-414.
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