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Cumulative effects of fragmentation and development on highly productive land in New Zealand

Land fragmentation is a growing issue in New Zealand, however, no consistent or regular national monitoring has been established. A methodology for assessing land fragmentation was applied nationally for the first time, revealing that the greatest proportion of fragmentation occurred on land used fo...

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Published in:New Zealand journal of agricultural research 2023-01, Vol.66 (1), p.1-24
Main Authors: Curran-Cournane, Fiona, Carrick, Sam, Barnes, Michelle G., Ausseil, Anne-Gaelle, Drewry, John J., Bain, Isaac A., Golubiewski, Nancy E., Jones, Haydon S., Barringer, James, Morell, Lance
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container_title New Zealand journal of agricultural research
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creator Curran-Cournane, Fiona
Carrick, Sam
Barnes, Michelle G.
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Bain, Isaac A.
Golubiewski, Nancy E.
Jones, Haydon S.
Barringer, James
Morell, Lance
description Land fragmentation is a growing issue in New Zealand, however, no consistent or regular national monitoring has been established. A methodology for assessing land fragmentation was applied nationally for the first time, revealing that the greatest proportion of fragmentation occurred on land used for diffuse rural residence (>0.40 to ≤2.0 ha) and small parcels (>2.0 to ≤8.0 ha) with a 128% and 73% increase, respectively, between 2002 and 2019. In New Zealand, the most highly productive land (Land Use Capability (LUC) class 1, 2 and 3) is most impacted by continued fragmentation with 38%, 28% and 17% of baseline area, respectively, occupied by medium sized parcels or smaller (≤40.0 ha) with a dwelling in 2019. Impacts were greatest for Auckland with 40%, 44% and 25% of the region's LUC 1, 2 and 3 land, respectively, occupied by small sized parcels or smaller with a dwelling, increasing to 64%, 67% and 47%, respectively, when including parcels ≤ 40.0 ha. Protection of LUC class 1 and 2 land, particularly, requires national attention. This metric provides an opportunity to evaluate land fragmentation and development over time that could serve both the assessment of policy performance and environmental reporting at national and regional levels.
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source Taylor and Francis Science and Technology Collection
subjects cumulative effects
Fragmentation
Land fragmentation
Land use
national policy
national reporting
New Zealand
urban expansion
versatile land
title Cumulative effects of fragmentation and development on highly productive land in New Zealand
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