Greenhouse gas inventory at an institution level: a case study of Massey University, New Zealand

2012 ◽  
Vol 2 (4) ◽  
pp. 178-185
Author(s):  
Zulfiqar Haider Butt
2015 ◽  
Vol 6 (3-4) ◽  
pp. 141-150 ◽  
Author(s):  
Gui-Bing Hong ◽  
Chih-Ming Ma ◽  
Chih-Cheng Hsiao ◽  
Chang-Tang Chang

2018 ◽  
Vol 58 (6) ◽  
pp. 973 ◽  
Author(s):  
Natasha Swainson ◽  
Stefan Muetzel ◽  
Harry Clark

Enteric methane (CH4) emissions make up approximately one-third of all New Zealand’s carbon dioxide equivalent greenhouse gas emissions. In current national inventory calculations, fixed values are used to estimate emissions from sheep; 20.9 g CH4 per kg dry matter intake (DMI) for sheep <1 year old and 16.8 g CH4 per kg DMI for sheep >1 year old. These values have been principally derived from trials where intake was estimated, and CH4 emissions were measured indirectly using the sulfur hexafluoride tracer technique. Using New Zealand sheep data collected between 2009 and 2015, where intake was accurately measured and CH4 emissions were measured for a minimum of 48 h in respiration chambers (n = 817), updated sheep methane prediction algorithms suitable for use in the national greenhouse gas inventory were derived. A single equation for all sheep based on daily DMI (kg) alone (ln(g CH4/day) = 0.763 × ln(DMI) + 3.039) explained 76% of the variation in CH4 emissions. Splitting the dataset into two age classes (sheep <1 year old and sheep >1 year old) provided two alternative equations; (sheep >1 year old), ln(g CH4/day) = 0.765 × ln(DMI) + 3.09 and (sheep <1 year old), ln(g CH4/day) = 0.734 × ln(DMI) + 0.05(metabolisable energy) + 2.46. An analysis of concordance suggests that a better fit to the data is obtained by using a two-algorithm approach. The use of these updated algorithms in the national inventory resulted in small changes to estimated emissions both within and between years.


2017 ◽  
Vol 142 ◽  
pp. 351-359 ◽  
Author(s):  
Michela Marchi ◽  
Federico Maria Pulselli ◽  
Silvia Mangiavacchi ◽  
Fabio Menghetti ◽  
Nadia Marchettini ◽  
...  

2018 ◽  
Vol 45 (2) ◽  
pp. 292-308 ◽  
Author(s):  
Rosi Crane ◽  
B. J. GILL

William Smyth, unable to get work in a New Zealand museum, ran a commercial taxidermy business at Caversham, Dunedin, from about 1873 to 1911 or 1912. His two decades of correspondence with Thomas Frederic Cheeseman at the Auckland Museum provide a case study of Smyth's professional interaction with one of New Zealand's main museums. We have used this and other sources to paint a picture of Smyth's activities and achievements during a time when there was great interest in New Zealand birds but few local taxidermists to preserve their bodies. Besides the Auckland Museum, Smyth supplied specimens to various people with museum connections, including Georg Thilenius (Germany) and Walter Lawry Buller (New Zealand). Smyth was probably self-taught, and his standards of preparation and labelling were variable, but he left a legacy for the historical documentation of New Zealand ornithology by the large number of his bird specimens that now reside in public museum collections in New Zealand and elsewhere.


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