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Te Pūheke opens a pathway towards improved environmental stewardship

04 May 2022

If Aotearoa New Zealand is to successfully transition to a more sustainable, resilient future without sacrificing productivity, then the full impact of various land-use practices needs to be well-understood and appropriately managed.

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Called Te Pūheke (‘the flows’), the research aims to accelerate take-up of sustainable agricultural practices by creating new tools that integrate real-time data on biophysical land-use impacts with economic, social wellbeing and mātauranga Māori modelling. The tools could be used by farmers, Māori land trustees, catchment groups and other land users, as well as senior stakeholders and decision-makers.

Led by Dr John Reid, Senior Research Fellow I Kairangahau Matua at UC’s Ngāi Tahu Research Centre | Kā Waimaero and Professor Matthew Wilson of UC’s School of Earth and Environment | Te Kura Aronukurangi, the new approach is being driven by technological advances in remote sensing, alongside other enhanced data collection methods.

Sustainable Development Goal (SDG) 15 - Life on Land Sustainable Development Goal (SDG) 15 - Life on Land

Dr John Reid explains, “Until recently, there has really been no way of accurately pinpointing which land management practice is better than another or who is operating within sustainable limits. We need to be able to identify who they are and what they are doing so that we can then spread their practices to others. High-resolution data, now starting to be captured, is opening up a way to achieve that.”

Dr Reid and Professor Wilson lead a team of internationally prominent researchers and practitioners. Feeding into the model will be multispectral aerial imaging and radar data, integrated with satellite technology to create detailed maps of the ground down to the square centimetre.

“If you can imagine a traffic light system applied across the landscape, what we are seeking to do is build up a picture of what current land management practices look like with green areas being the most sustainable. We can also measure how much is being produced and identify high production areas. In turn, that will enable us to find the farms that are both highly productive and environmentally sustainable.

“The question then is, ‘what happens if all Aotearoa New Zealand was farming in that way? What would be the impact on GDP and climate emissions? We hope to use the model to find out whether or not it will be possible for Aotearoa New Zealand’s farming sector to become carbon neutral.”

Another goal will be to show how sustainable farming practices can generate positive social impacts, such as higher quality drinking water.

“We will also consider the impact on Māori values, and relationships with wāhi tapu sites, sacred places and areas.”

Alongside this research, Dr Reid is co-leading the development of a national Eco-index to measure biodiversity with fine-scale accuracy which will also link in with Te Pūheke.  “This new integrated, multidisciplinary, cross-cultural evaluation and prediction framework will highlight positive stories of good land management practices and open a pathway towards a more sustainable future.”


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