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Updating the mapping of soil organic matter with a high density sampling data: a case study in an intensive agricultural region, Eastern China

Research Scholar

Manman Fan, PhD candidate at the Nanjing University (China)
Rattan Lal, faculty mentor


  • Hometown: China
  • Degrees received: Master of Science in physical geography, Nanjing University, China.

What is the issue or problem addresses in your research?

Soil organic matter (SOM) is not only a crucial component for sustainable soil quality and productivity but has become increasingly important as the largest terrestrial carbon pool in view of global climate change. The objectives of my research are as follows: 1) updating the mapping of SOM content with sufficient samples in an intensive agricultural region; and 2) elucidating in detail the possible influences of natural and anthropogenic factors on the spatial variation of SOM.

What methodology did you use in your research?

Ordinary Kriging, semi-variogram, Multiple linear regression (MLR), One-way ANOVA and Automatic Linear model (ALM).

What are the purpose/rationale and implications of your research?

A better understanding of the SOM dynamics and its controls is a prerequisite for increasing soil productivity and also for mitigating global warming; consequently, detailed information about sustainable soil utilization and management should be provided.