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Journal of Soils and Sediments

, Volume 13, Issue 6, pp 981–988 | Cite as

Land use changes induced soil organic carbon variations in agricultural soils of Fuyang County, China

  • Lefeng Qiu
  • Jinxia Zhu
  • Yuanhong Zhu
  • Yang Hong
  • Ke Wang
  • Jinsong Deng
SOILS, SEC 1 • SOIL ORGANIC MATTER DYNAMICS AND NUTRIENT CYCLING • RESEARCH ARTICLE

Abstract

Purpose

The purpose of this study is to understand spatial and temporal variations of soil organic carbon (SOC) under rapid urbanization and support soil and environmental management.

Materials and methods

SOC data in 1979 and 2006, of 228 and 1,104 soil samples respectively, were collected from surface agricultural lands in Fuyang County, East of China. Land use data were also gathered at the same time.

Results and discussion

The mean SOC was 17.3 (±4.6) g/kg for the 1979 data and 18.5(±5.8) g/kg for 2006. There was a significant difference in SOC between the 2 years according to the t test result. Geostatistical analysis indicated that SOC had a moderate spatial correlation controlled by extrinsic anthropogenic activities. The spatial distribution of SOC, derived from ordinary kriging, matched the distribution of industry and urbanization. Using a six-level SOC classification scheme (<3.5, 3.5–5.8, 5.8–11.6, 11.6–17.4, 17.4–23.2, and >23.2 g/kg) created by Zhejiang Province, approximately 15 % of soil had SOC increase from low to high levels from 1979 to 2006.

Conclusions

The main cause of SOC variation in the study area was land use change from agriculture to industrial or urbanized uses. The increasing SOC trend near most towns may be attributed to use of organic manure, urban wastes, sewage sludge, and chemical fertilizers on agricultural land.

Keywords

Distribution pattern Geostatistics Land use Urbanization 

Notes

Acknowledgments

This study was financially supported by public welfare project from Science Technology Department of Zhejiang Province (#2010C3208).

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Institute of Rural DevelopmentZhejiang Academy of Agricultural SciencesHangzhouChina
  2. 2.Institute of Economic and Social DevelopmentZhejiang University of Finance and EconomicsHangzhouChina
  3. 3.Institute of Remote Sensing and Information System ApplicationZhejiang UniversityHangzhouChina
  4. 4.Department of Crop and Soil SciencesThe Pennsylvania State UniversityUniversity ParkUSA
  5. 5.School of Civil Engineering and Environmental SciencesUniversity of OklahomaNormanUSA

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