Soil organic carbon storage changes in coastal wetlands of the modern Yellow River Delta from 2000 to 2009
Open Access
- 10 February 2012
- preprint content
- Published by Copernicus GmbH
- Vol. 9 (6), 2325-2331
- https://doi.org/10.5194/bgd-9-1759-2012
Abstract
Soil carbon sequestration plays an essential role in mitigating CO2 increases and the subsequently global greenhouse effect. The storages and dynamics of soil organic carbon (SOC) of 0–30 cm soil depth in different landscape types including beaches, reservoir and pond, reed wetland, forest wetland, bush wetland, farmland, building land, bare land (severe saline land) and salt field in the modern Yellow River Delta (YRD), were studied based on the data of the regional survey and laboratory analysis. The landscape types were classified by the interpretation of remote sensing images of 2000 and 2009, which was calibrated by field survey results. The results revealed an increase of 10.59 km2 in the modem YRD area from 2000 to 2009. The SOC density varied ranging from 0.73 kg m−2 to 21.60 kg m−2 at depth of 30 cm. There were ~3.97 × 106 t and 3.98 × 106 t SOC stored in the YRD in 2000 and 2009, respectively. The SOC storages changed greatly in beaches, bush wetland, farm land and salt field which were affected dominantly by anthropogenic activities. The area of the YRD increased greatly within 10 yr, however, the small increase of SOC storage in the region was observed due to landscape changes, indicating that the modern YRD was a potential carbon sink and anthropogenic activity was a key factor for SOC change.Keywords
This publication has 37 references indexed in Scilit:
- Evaluating the ecological performance of wetland restoration in the Yellow River Delta, ChinaEcological Engineering, 2009
- Denitrification potential and its relation to organic carbon quality in three coastal wetland soilsScience of The Total Environment, 2008
- Historical advances in the study of global terrestrial soil organic carbon sequestrationWaste Management, 2007
- Export of dissolved organic carbon from an upland peatland during storm events: Implications for flux estimatesJournal of Hydrology, 2007
- Some perspectives on carbon sequestration in agricultureAgricultural and Forest Meteorology, 2007
- The effects of erosional and management history on soil organic carbon stores in ephemeral wetlands of hummocky agricultural landscapesGeoderma, 2006
- Potential impacts of a warming climate on water availability in snow-dominated regionsNature, 2005
- Carbon cycling in earth systems—a soil science perspectiveAgriculture, Ecosystems & Environment, 2004
- Global warming in the twenty-first century: An alternative scenarioProceedings of the National Academy of Sciences of the United States of America, 2000
- The value of the world's ecosystem services and natural capitalNature, 1997