Artificial Macropore Installation to Degraded Soils for Carbon Storage
Background / Objectives
Soils are largest carbon storage in terrestrial region, and buffer materials for global warming. However, soils are degraded in climate change and removed by heavy rain. Soil pore structure has dual porosity nature of macropore and micropore, which controls the solute transport in soils. We introduced artificial macropore to enhance infiltration, recover the vegetation and effectively accumulate the organic matter.
Field experiment showed that rainfall was effectively stored and soil organic matter was increased, along with recovered weed flora. We estimate that this technique recovers 20% of terrestrial carbon budget which is similar to large afforestation. This technique is simple, thus many people can use as a countermeasure for land degradation.