Using Individual Farm Management Plans To
Manage Land Use Change Effects Associated With
New Irrigation Development, Canterbury,
New Zealand
Author(s)
B. Ellwood, L. Mead, C. Mulcock & S Dawson
Abstract
Managing the environmental effects arising from intensive agriculture has
become a key issue in obtaining permission to abstract water for irrigation in
New Zealand. Hunter Downs Irrigation (HDI) is a proposed irrigation scheme
that would divert approximately 20 m3/s of flow from the Waitaki River to
40,000 hectares of lands in Canterbury, New Zealand. In addition to carrying out
extensive assessments of potential environmental effects of the proposed
scheme, it also needed to demonstrate how it would be able to implement and
maintain ongoing environmental management of irrigated agriculture.
Many of the effects arising from the new development are not readily
quantifiable in advance, as they depend on the particular mix of land uses that
will be established once the scheme is commissioned. These may also change
over time as they will depend not only on the biophysical environment (soils,
topography, climate etc.) but also on market drivers and other economic signals.
As the area supplied by this scheme is suitable for a range of land uses, the
challenge was to provide sufficient certainty to regulatory agencies and to the
public that adverse environmental effects generated by the irrigation scheme will
be minimised and that poor practices can either be avoided or can be identified
and remedied. At the same time farmers needed to have sufficient flexibility to
develop a wide range of agricultural enterprises. To achieve this an
environmental management system was developed that requires each farmer to
develop and use an environmental farm management plan that is linked to a
rigorous audit and compliance regime, and continuous improvement process, so
that farmers maintain up to date practices and by doing this it is assumed that the
environmental effects are the lowest possible for an irrigated agricultural system.
Keywords: Environmental Management System (EMS), irrigation management.
Keywords
Environmental Management System (EMS), irrigation management.
Related Book
Other papers in this volume
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