New Zealand Soil Classification

Authors

NZSC Working Group

Alan E. Hewitt, PhD

Andre Eger, PhD

Published

May 7, 2026

New Zealand Soil Classification

4th edition

Manaaki Whenua - Landcare Research New Zealand Ltd

Landcare Research Science Series No. 1

© Landcare Research New Zealand Ltd 2025

No part of this work covered by copyright may be reproduced or copied in any form or by any means (graphic, electronic or mechanical, including photocopying, recording, taping, information retrieval systems, or otherwise) without the written permission of the publisher.

Cataloguing in publication:

HEWITT, A.E. and NZSC Working Group
New Zealand soil classification / A.E. Hewitt. – 4th edition – Lincoln, N.Z.:
Manaaki Whenua Press 2025.
(Landcare Research science series, ISSN 1172-269X; no.1)
ISBN 978-0-478-34710-4 1

Soils – New Zealand – Classification. I.
Manaaki Whenua – Landcare Research New Zealand Ltd. II. Title. III. Series.

UDC 631.44 (931)

First published as DSIR Land Resources Scientific Report No.19, 1992. Reprinted with corrections as Landcare Research Science Series No. 1, 1998 (2nd edition) and Landcare Research Science Series No. 1, 2010 (3rd edition). This is the 4th edition with further updates and corrections.

First edition editing and desktop publishing by A.D. Pritchard and printing by The Caxton Press.


Welcome!

This is the 4th edition of the New Zealand Soil Classification (NZSC).

Introductory information about the NZSC is available at The New Zealand Soils Portal.