Z is for Podzol

“Podzol Soils occur in areas of high rainfall and are usually associated with forest trees with an acid litter. The soils occur mainly in materials from silica-rich rocks. They cover 13% of New Zealand.”

In the Labs for Lincoln Uni’s Level 1 Soil Science course this week we have been looking at different soil profiles, describing horizons and classifying them to the NZ Soil Classification. Podzol is one that the students get to and ponder for a while. It’s abundance of different horizons can be quite confusing at first, but after working through them, can be appreciated as a beautiful.

Podzols - Landcare Research
Photo Credit: https://soils.landcareresearch.co.nz/describing-soils/nzsc/soil-order/podzol-soils

A Podzol generally has an Ah horizon, followed by a E, then all or one of; Bh, Bs, Bfm, making for a colourful soil description and something to get fresh soil science minds working. The E horizon is an eluviated horizon, where the weathering over thousands of years has leached any nutrients, organic matter, iron and aluminium oxides out of it making it a very pale horizon.

Read more on LandcareResearch’s ‘Describing Soils’ Webpage

References:

https://soils.landcareresearch.co.nz/describing-soils/nzsc/soil-order/podzol-soils

https://www.landis.org.uk/services/soilsguide/series.cfm?serno=729

The Colourful History of Soil Mapping

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A snapshot of the colourful history of soil mapping. #soilmaps #handpainted #colourful #history #newzealand #soil #lovesoil

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Why Blog?

Communication of science and what we do here in the Department is really key to helping people understand the challenges we face in the land based sector, especially when it comes to sustainable primary production and protecting the environment. Currently it’s something we do through outreach, farm days and such like. Another strategy is to use a Blog to reach a wider audience such as land users, the interested public and potential students at the UG and PG level.

 This is not an official Lincoln University blog site, it is designed to represent our views and do not necessarily reflect the views of our employer.

Lincoln University Department of Soil & Physical Sciences

The Department of Soil Science at Lincoln University, NZ is responsible for the delivery of all undergraduate and postgraduate soil-related courses, and many physical science courses.

http://www.lincoln.ac.nz/Lincoln-Home/About-Lincoln/Faculties-and-Divisions/Faculty-of-Agriculture-and-Life-Sciences/Department-of-Soil-and-Physical-Sciences/