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Ecosystem service delivery in Karst landscapes: anthropogenic perturbation and recovery

Journal Article


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Abstract


  • Covering extensive parts of China, Karst landscapes are exceptional because rapid and intensive land use change has caused severe ecosystem degradation within only the last 50 years. The twentieth century intensification in food production through agriculture has led to a rapid deterioration of soil quality, evidenced in reduced crop production and rapid loss of soil. In many areas, a tipping point appears to have been passed as basement rock is exposed and ‘rocky desertification’ dominates. Through the establishment of the “Soil processes and ecological services in the karst critical zone of SW China” (SPECTRA) Critical Zone Observatory (CZO) we will endevaour to understand the fundmental processes involved in soil production and erosion, and investigate the integrated geophysical-geochemical-ecological responses of the CZ to perturbations. The CZ spans a gradient from undisturbed natural vegetation through human perturbed landscapes. We seek to understand the importance of heterogeneity in surface and below-ground morphology and flow pathways in determining the spatial distribution of key stocks (soil, C, vegetation, etc.) and their control on ecosystem service delivery. We will assess the extent to which the highly heterogeneous critical zone resources can be restored to enable sustainable delivery of ecosystem services. This paper presents the CZO design and initial assessment of soil and soil organic carbon stocks and evidence for their stability based on caesium-137 (137Cs) data.

Authors


  •   Quine, Timothy (external author)
  •   Guo, Dali (external author)
  •   Green, Sophie (external author)
  •   Tu, Chenglong (external author)
  •   Hartley, Iain (external author)
  •   Zhang, Xinyu (external author)
  •   Dungait, Jennifer (external author)
  •   Wen, Xuefa (external author)
  •   Song, Zhaoliang (external author)
  •   Liu, Hongyan (external author)
  •   Buss, Heather L. (external author)
  •   Barrows, Tim T.
  •   Evershed, Richard (external author)
  •   Johnes, Penny (external author)
  •   Meersmans, Jeroen (external author)

Publication Date


  • 2017

Citation


  • Quine, T., Guo, D., Green, S. M., Tu, C., Hartley, I., Zhang, X., Dungait, J., Wen, X., Song, Z., Liu, H., Buss, H., Barrows, T., Evershed, R., Johnes, P. & Meersmans, J. (2017). Ecosystem service delivery in Karst landscapes: anthropogenic perturbation and recovery. Acta Geochimica, 36 (3), 416-420.

Scopus Eid


  • 2-s2.0-85020625170

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1043&context=smhpapers1

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers1/43

Number Of Pages


  • 4

Start Page


  • 416

End Page


  • 420

Volume


  • 36

Issue


  • 3

Place Of Publication


  • China

Abstract


  • Covering extensive parts of China, Karst landscapes are exceptional because rapid and intensive land use change has caused severe ecosystem degradation within only the last 50 years. The twentieth century intensification in food production through agriculture has led to a rapid deterioration of soil quality, evidenced in reduced crop production and rapid loss of soil. In many areas, a tipping point appears to have been passed as basement rock is exposed and ‘rocky desertification’ dominates. Through the establishment of the “Soil processes and ecological services in the karst critical zone of SW China” (SPECTRA) Critical Zone Observatory (CZO) we will endevaour to understand the fundmental processes involved in soil production and erosion, and investigate the integrated geophysical-geochemical-ecological responses of the CZ to perturbations. The CZ spans a gradient from undisturbed natural vegetation through human perturbed landscapes. We seek to understand the importance of heterogeneity in surface and below-ground morphology and flow pathways in determining the spatial distribution of key stocks (soil, C, vegetation, etc.) and their control on ecosystem service delivery. We will assess the extent to which the highly heterogeneous critical zone resources can be restored to enable sustainable delivery of ecosystem services. This paper presents the CZO design and initial assessment of soil and soil organic carbon stocks and evidence for their stability based on caesium-137 (137Cs) data.

Authors


  •   Quine, Timothy (external author)
  •   Guo, Dali (external author)
  •   Green, Sophie (external author)
  •   Tu, Chenglong (external author)
  •   Hartley, Iain (external author)
  •   Zhang, Xinyu (external author)
  •   Dungait, Jennifer (external author)
  •   Wen, Xuefa (external author)
  •   Song, Zhaoliang (external author)
  •   Liu, Hongyan (external author)
  •   Buss, Heather L. (external author)
  •   Barrows, Tim T.
  •   Evershed, Richard (external author)
  •   Johnes, Penny (external author)
  •   Meersmans, Jeroen (external author)

Publication Date


  • 2017

Citation


  • Quine, T., Guo, D., Green, S. M., Tu, C., Hartley, I., Zhang, X., Dungait, J., Wen, X., Song, Z., Liu, H., Buss, H., Barrows, T., Evershed, R., Johnes, P. & Meersmans, J. (2017). Ecosystem service delivery in Karst landscapes: anthropogenic perturbation and recovery. Acta Geochimica, 36 (3), 416-420.

Scopus Eid


  • 2-s2.0-85020625170

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1043&context=smhpapers1

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers1/43

Number Of Pages


  • 4

Start Page


  • 416

End Page


  • 420

Volume


  • 36

Issue


  • 3

Place Of Publication


  • China