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Issue 33, November 2024 articles

  1. Enhanced Rock Weathering: A bulwark against climate warming?

    Silicate and carbonate weathering by carbonic acid is a key component of the natural, mid- to long-term global carbon cycle. This process plays out in two key environments.

  2. Leaching losses under cropping and variable-rate irrigation

    The intensification of agricultural land typically includes irrigation to increase pasture and crop yields. This is often associated with an increase in nutrient inputs through fertiliser, increased stock numbers, and changing cropping patterns and management practices. However, irrigation and other...

  3. Benchmark results from New Zealand’s soil carbon monitoring programme for agricultural land

    Soil organic carbon (SOC) is critical for soil health. It is the basis of the soil food web and plays an important role in maintaining soil structure, retaining water, and nutrient cycling. Soils are large reservoirs of carbon, and globally they contain more carbon than the atmosphere and vegetation...

  4. S-map expands further and reaches 11 million hectares!

    Last year closed out with a significant achievement for S-map, New Zealand’s comprehensive online resource soil information system. In the latest update to S-map Online, released in August 2024, the coverage of S-map reached 11 million ha, or 73% of the multiple-use land (Land Use Capability classes...

  5. Updated estimates of soil water retention in S-map

    New Zealand is internationally recognised as having a high diversity of soil types, with S-map identifying 4,844 soil siblings (types) in the 41% of the country mapped so far. It would be too expensive to measure a wide range of attributes in the laboratory for all these siblings, so they are only m...

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