Digital Soil Mapping

Using R for DSM

Korean Soil and Fertilizer Conference 2017

We were invited to present at the annual Korean Soil and Fertilizer Conference, 19. Oct. 2017  in Chung Ju (University of Chungbuk). The NAS (National Agricultural Sciences) symposium titled “Technology and Prospects of Digital Soil Mapping”. The conference was opened by the president of NAS highlighting the challenge of soil mapping and agriculture in S. Read more about Korean Soil and Fertilizer Conference 2017[…]

Digital Soil Mapping Training in Jeonju, Korea

Brendan Malone and Budiman Minasny recently conducted a 2-day digital soil mapping training at the Rural Development Agency (RDA) Headquarter in JeonJu, S. Korea, 17-18 October 2017. The training is part o fthe research collaboration between National Institute of Agricultural Sciences and the University of Sydney. It is also supported by the Australia Korea Foundation. Read more about Digital Soil Mapping Training in Jeonju, Korea[…]

More Data or a Better Model?

 A new paper published in Soil Science Society of America Journal by Sanjeewani Nimalka Somarathna Pallegedara Dewage as part of her PhD tried to answer this question by figuring out what matters most for DSM of soil carbon. In this study, Sanjee studied how diverse spatial modelling techniques perform under varying training sample sizes, in Read more about More Data or a Better Model?[…]

Mount Agung: Light will shine out of darkness

By: Dian Fiantis and Budiman Minasny Bali’s Mount Agung is likely to erupt soon. This eruption will be a catastrophic event, lava and ashes with high temperatures will be ejected causing severe risk to humans and their livelihoods. Ashes from the volcano will cause damages to farmers, destructing their crops and burying their farms. The Read more about Mount Agung: Light will shine out of darkness[…]

Adding Organic Matter in Soil has a limited effect on soil’s water holding capacity

Sequestering carbon in the soil via the addition of Organic Matter addition has been widely promoted to contribute to the mitigation of climate change. Enhancing soil organic matter can improve soil quality, i.e., increasing nutrient retention, improvement in soil structure, enhancing soil biotic activity and improvements in soil moisture and temperature regimes. Organic matter addition Read more about Adding Organic Matter in Soil has a limited effect on soil’s water holding capacity[…]

Digital soil mapping of soil carbon at the farm scale: A spatial downscaling approach

Initiated during 2015, Quentin Styc was a visiting intern student from France to our soil security laboratory for 3 months. I had this idea of spatial downscaling and trying to include observational data into the scheme. Quentin was happy to work on this little problem, and actually presented some preliminary results on this at the Read more about Digital soil mapping of soil carbon at the farm scale: A spatial downscaling approach[…]

Geochemical fingerprinting of volcanic soils used for wetland rice in West Sumatra, Indonesia

Toward the end of 2016, Prof. Dian Fiantis (Department of Soil Science, Faculty of Agriculture, Universitas Andalas, Kampus Limau Manis) spent around 3 months in our soil science research group. With her in her kit bag, were a number of soil samples collected from various sites around a few different volcanoes situated in West Sumatra, Read more about Geochemical fingerprinting of volcanic soils used for wetland rice in West Sumatra, Indonesia[…]

Rapid assessment of petroleum-contaminated soils with infrared spectroscopy

This is the first paper from our new PhD student in the Soil Security Laboratory, Wartini Ng. Soil sensing using infrared spectroscopy has been proposed as an alternative to conventional soil analysis to detect soil contamination. This study evaluated the use of field portable and laboratory bench top infrared spectrometers in both the near infrared (NIR) Read more about Rapid assessment of petroleum-contaminated soils with infrared spectroscopy[…]

Brendan Malone talks about DSM with R

What led up to this DSM “cookbook”? Things really kicked off in 2010 when I was invited with Budiman and Alex to prepare a digital soil mapping training course to a number of Australian government scientists and soil scientists. Digital soil mapping was becoming operationalised in Australia around this time with initiatives such as the Read more about Brendan Malone talks about DSM with R[…]

Dominique Arrouays talks about 4 per mille

What is Soil carbon 4 per mille initiative? The 4 per mille (or  4 per 1000) initiative was launched during the COP21 meeting in Paris by The French Minister of Agriculture, Stéphane Le Foll. This initiative aspires to increase the global soil organic carbon stocks by 0.4 percent per year as a compensation for the Read more about Dominique Arrouays talks about 4 per mille[…]