RELATIONS BETWEEN SOIL ORGANIC CARBON AND OTHER SOIL PHYSICOCHEMICAL INDICES UNDER DIFFERENT LAND USE PATTERNS

Yuefeng Guo (), Wei Qi, Yunfeng Yao, Fucang Qin, Yuhan Gao and Wenhao Zhao
Additional contact information
Yuefeng Guo: Desert Science and Engineering College, Inner Mongolia Agricultural University, Hohhot, P. R. China
Wei Qi: Desert Science and Engineering College, Inner Mongolia Agricultural University, Hohhot, P. R. China†Department of Planning Office, Design Institute of Water Conservancy and Hydroelectric Power in Inner Mongolia, Hohhot, P. R. China
Yunfeng Yao: Desert Science and Engineering College, Inner Mongolia Agricultural University, Hohhot, P. R. China
Fucang Qin: Desert Science and Engineering College, Inner Mongolia Agricultural University, Hohhot, P. R. China
Yuhan Gao: Desert Science and Engineering College, Inner Mongolia Agricultural University, Hohhot, P. R. China
Wenhao Zhao: Desert Science and Engineering College, Inner Mongolia Agricultural University, Hohhot, P. R. China

Surface Review and Letters (SRL), 2017, vol. 24, issue 03, 1-8

Abstract: This paper investigates the relations between soil organic carbon (SOC) and other physicochemical indices in low hills of Chifeng, Inner Mongolia, and thus to help with soil modification in low hills there. Grey relational analysis and stepwise regression analysis were used to uncover the relations of SOC with total N (TN), pH, available P (AP), available K (AK), and microbial biomass carbon (MBC) under eight land use patterns in a typical small watershed in Chifeng. The eight land uses were Prunus sibirica land, Caragana microphylla land, Populus simonii land, Ulmus pumila land, natural grassland, Pinus Tableulaeformis × P. sibirica mixed land, secondary forest of natural bush land, and agricultural land. The average SOC contents in the 0–100cm layer in the above eight land use patterns are 7.72, 5.32, 7.40, 6.11, 3.14, 10.26, 17.51 and 5.34g/kg, respectively, indicating significant differences. The relation coefficients of SOC with TN, pH, MBC, AK, and AP are 0.70, 0.66, 0.63, 0.57 and 0.55, respectively, under all land use patterns. SOC contents are significantly different among these land use patterns, and the relation coefficients of SOC with other physicochemical indices rank in the order as: TN>pH>MBC>AK>AP. The optimum regression equation of SOC (Y) with TN (X2) and pH (X5) was built: Y=−6.2698+19.3832X2+0.0102X5, (R2=0.85).

Keywords: Low hills in Inner Mongolia; soil organic carbon; soil chemical indices (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X17500391
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:24:y:2017:i:03:n:s0218625x17500391

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X17500391

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().