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Spatial patterns and effects of soil organic carbon on grain productivity assessment in China

Liming Ye (UGent) , H TANG, J ZHU, Ann Verdoodt (UGent) and Eric Van Ranst (UGent)
(2008) SOIL USE AND MANAGEMENT. 24(1). p.80-91
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Abstract
In this paper, we present an assessment of the content and effects of cropland soil organic carbon (SOC) on grain productivity at the national scale in China using a Web-based Land Evaluation System. Homogeneous 5 km · 5 km grid data sets of climate, crop, soil and management parameters were created and grain production in 2005 was simulated. Attempts were made to incorporate SOC into the land evaluation procedure and to quantify the potential effects of SOC deficiency on grain productivity. Results were statistically analysed and the modelling approach was validated. National cropland SOC maps were generated. At the national scale, the cropland SOC content averaged 1.20, 0.58, 0.41, 0.31 and 0.26% for the five 20-cm sections consecutively from the surface downwards. At the regional scale it tended to decline slightly from northeast (1.63%) to southwest (1.11%). On average, 64% of grain yield was lost due to SOC deficiency for the humid provinces and 7% for the arid and sub-arid ones. Soil management options are suggested based on the simulation results.
Keywords
grain productivity, Soil organic carbon, land evaluation, China

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Chicago
Ye, Liming, H TANG, J ZHU, Ann Verdoodt, and Eric Van Ranst. 2008. “Spatial Patterns and Effects of Soil Organic Carbon on Grain Productivity Assessment in China.” Soil Use and Management 24 (1): 80–91.
APA
Ye, Liming, TANG, H., ZHU, J., Verdoodt, A., & Van Ranst, E. (2008). Spatial patterns and effects of soil organic carbon on grain productivity assessment in China. SOIL USE AND MANAGEMENT, 24(1), 80–91.
Vancouver
1.
Ye L, TANG H, ZHU J, Verdoodt A, Van Ranst E. Spatial patterns and effects of soil organic carbon on grain productivity assessment in China. SOIL USE AND MANAGEMENT. 2008;24(1):80–91.
MLA
Ye, Liming, H TANG, J ZHU, et al. “Spatial Patterns and Effects of Soil Organic Carbon on Grain Productivity Assessment in China.” SOIL USE AND MANAGEMENT 24.1 (2008): 80–91. Print.
@article{397109,
  abstract     = {In this paper, we present an assessment of the content and effects of cropland soil organic carbon (SOC) on grain productivity at the national scale in China using a Web-based Land Evaluation System. Homogeneous 5 km {\textperiodcentered} 5 km grid data sets of climate, crop, soil and management parameters were created and grain production in 2005 was simulated. Attempts were made to incorporate SOC into the land evaluation procedure and to quantify the potential effects of SOC deficiency on grain productivity. Results were statistically analysed and the modelling approach was validated. National cropland SOC maps were generated. At the national scale, the cropland SOC content averaged 1.20, 0.58, 0.41, 0.31 and 0.26\% for the five 20-cm sections consecutively from the surface downwards. At the regional scale it tended to decline slightly from northeast (1.63\%) to southwest (1.11\%). On average, 64\% of grain yield was lost due to SOC deficiency for the humid provinces and 7\% for the arid and sub-arid ones. Soil management options are suggested based on the simulation results.},
  author       = {Ye, Liming and TANG, H and ZHU, J and Verdoodt, Ann and Van Ranst, Eric},
  issn         = {0266-0032},
  journal      = {SOIL USE AND MANAGEMENT},
  keyword      = {grain productivity,Soil organic carbon,land evaluation,China},
  language     = {eng},
  number       = {1},
  pages        = {80--91},
  title        = {Spatial patterns and effects of soil organic carbon on grain productivity assessment in China},
  url          = {http://dx.doi.org/10.1111/j.1475-2743.2007.00136.x},
  volume       = {24},
  year         = {2008},
}

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