Review and update of a Nutrient Transfer model used for estimating nitrous oxide emissions from complex grazed landscapes, and implications for nationwide accounting

Simple item page
dc.citation.issue5
dc.citation.volume51
dc.contributor.authorVibart R
dc.contributor.authorGiltrap D
dc.contributor.authorSaggar S
dc.contributor.authorMackay A
dc.contributor.authorBetteridge K
dc.contributor.authorCostall D
dc.contributor.authorRollo M
dc.contributor.authorDraganova I
dc.contributor.editorZhu-Barker. X
dc.coverage.spatialUnited States
dc.date.accessioned2024-03-11T21:00:45Z
dc.date.accessioned2024-07-25T06:34:00Z
dc.date.available2022-06-25
dc.date.available2024-03-11T21:00:45Z
dc.date.available2024-07-25T06:34:00Z
dc.date.issued2022-09-30
dc.description.abstractIn New Zealand, nitrous oxide emissions from grazed hill pastures are estimated using different emission factors for urine and dung deposited on different slope classes. Allocation of urine and dung to each slope class needs to consider the distribution of slope classes within a landscape and animal behavior. The Nutrient Transfer (NT) model has recently been incorporated into the New Zealand Agricultural GHG Inventory Model to account for the allocation of excretal nitrogen (N) to each slope class. In this study, the predictive ability of the transfer function within the NT model was explored using urine deposition datasets collected with urine sensor and GPS tracker technology. Data were collected from three paddocks that had areas in low (<12°), medium (12-24°), and high slopes (>24°). The NT model showed a good overall predictive ability for two of the three datasets. However, if the urine emission factors (% of urine N emitted as N2 O-N) were to be further disaggregated to assess emissions from all three slope classes or slope gradients, more precise data would be required to accurately represent the range of landscapes found on farms. We have identified the need for more geospatial data on urine deposition and animal location for farms that are topographically out of the range used to develop the model. These new datasets would provide livestock urine deposition on a more continuous basis across slopes (as opposed to broad ranges), a unique opportunity to improve the performance of the NT model.
dc.description.confidentialfalse
dc.edition.editionSeptember/October 2022
dc.format.pagination930-940
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/35633569
dc.identifier.citationVibart R, Giltrap D, Saggar S, Mackay A, Betteridge K, Costall D, Rollo M, Draganova I. (2022). Review and update of a Nutrient Transfer model used for estimating nitrous oxide emissions from complex grazed landscapes, and implications for nationwide accounting.. J Environ Qual. 51. 5. (pp. 930-940).
dc.identifier.doi10.1002/jeq2.20377
dc.identifier.eissn1537-2537
dc.identifier.elements-typejournal-article
dc.identifier.issn0047-2425
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/70436
dc.languageeng
dc.publisherJohn Wiley and Sons Inc on behalf of American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
dc.publisher.urihttps://acsess.onlinelibrary.wiley.com/doi/10.1002/jeq2.20377
dc.relation.isPartOfJ Environ Qual
dc.rights(c) The author/sen
dc.rights.licenseCC BY 4.0en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectAgriculture
dc.subjectAnimals
dc.subjectNitrogen
dc.subjectNitrous Oxide
dc.subjectNutrients
dc.subjectSoil
dc.titleReview and update of a Nutrient Transfer model used for estimating nitrous oxide emissions from complex grazed landscapes, and implications for nationwide accounting
dc.typeJournal article
pubs.elements-id453560
pubs.organisational-groupOther
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
Published
Size:
1.2 MB
Format:
Adobe Portable Document Format
Description:
Download
Thumbnail Image
Name:
Evidence
Size:
329.99 KB
Format:
Microsoft Word XML
Description:
Download
Collections
Journal Articles