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2022 Newsletters
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Landslide victory: using satellite data to spot dammed rivers after the Kaikoura quake
19 May 2022
Just after midnight on 14 November 2016, New Zealand experienced its most powerful and complex seismic event since the 1855 Wairarapa earthquake. Initially centred close to Culverden, north Canterbury, the magnitude 7.8 quake triggered a complicated series of northward-spreading fault ruptures. The ...
Newsletter
Pūtaiao
Making “un-poplar” decisions: a framework for better tree choices in our hill country
19 May 2022
Around 20% of Aotearoa New Zealand is classed as “hill country” – much of it marginal pastoral agricultural land with low productive potential. Often steep and treeless, hill country is prone to soil erosion and rapid surface runoff after rainfall.
Newsletter
Pūtaiao
Predator modelling applied to study of COVID health equity
19 May 2022
The COVID-19 pandemic has been disruptive of many science activities over the past 2 years. Fieldwork, conferences, hui, workshops – much work has had to be rescheduled or moved online. However, scientists are lateral thinkers. The pandemic has also brought new and wide-ranging opportunities to appl...
Newsletter
Pūtaiao
COVID
Kauri dieback going to the dogs
19 May 2022
Manaaki Whenua wildlife ecologist Dr Al Glen is working with the Auckland Council and Zach Carter from the University of Auckland to test the ability of trained dogs to sniff out Phytophthora agathidicida, the causative organism of kauri dieback.
Newsletter
Pūtaiao
Celebrating our achievements
19 May 2022
During 2021 Angela Brandt was seconded to work with the Parliamentary Commissioner for the Environment on a major new report: Space invaders – A review of how we manage weeds that threaten native ecosystems. The report, which sets out whether Aotearoa New Zealand is doing the best job it can to mana...
Newsletter
Pūtaiao
Celebrating our achievements
From collect to connect – rebalancing our collections and databases
19 May 2022
Manaaki Whenua is the custodian of a number of Nationally Significant Collections and Databases (NSCDs) on behalf of everyone in Aotearoa New Zealand.
Newsletter
Pūtaiao
Reducing nitrogen losses from dairy farms on stony soils
8 March 2022
In the past two decades, much dryland farming has been converted to irrigated dairy farming in Aotearoa New Zealand, notably in eastern areas of Te Wai Pounamu (the South Island). Here, soils are largely shallow, free-draining, and stony, and dairy conversions have contributed to concerns about incr...
Newsletter
Pūtaiao
Land
Managing lucerne to fix soil N losses
8 March 2022
Lucerne is a widely used grazing fodder crop, and like other legumes, is able to fix nitrogen (N) in the soil. Well-managed lucerne is highly productive and the plant also has deep roots, which allow water extraction from well below 2 m depth and extract N from the soil.
Newsletter
Pūtaiao
Improved soil information for Aotearoa
8 March 2022
The Soils Portal, Pātaka Oneone, is Manaaki Whenua’s website for comprehensive infomation about New Zealand’s soil resources. It has been running for 15 years, and currently attracts some 40,000 visitors per year.
Newsletter
Pūtaiao
How intensified irrigation affects soil physical properties – a pilot study
8 March 2022
New Zealand agriculture has seen rapid land-use change in recent decades, with a decrease in sheep numbers and corresponding rise in dairy cow numbers. This has been matched in the Canterbury region by an expansion in irrigated areas.
Newsletter
Pūtaiao
Soil
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