Nonlinear Changes in Land Cover and Sediment Runoff in a New Zealand Catchment Dominated by Plantation Forestry and Livestock Grazing

Simple item page
dc.contributor.authorKamarinas, Ioannis
dc.contributor.authorJulian, Jason P.
dc.contributor.authorHughes, Andrew O.
dc.contributor.authorOwsley, Braden C.
dc.contributor.authorde Beurs, Kirsten M.
dc.date.accessioned2021-07-01T18:34:30Z
dc.date.available2021-07-01T18:34:30Z
dc.date.issued2016-10
dc.description.abstractLand cover can change frequently on intensively managed landscapes, affecting water quality across different spatiotemporal scales. Multi-resolution datasets are necessary in order to assess the extent and trends of these changes, as well as potential cross-scale interactions. In this study, both spatial and temporal analyses of land disturbance (i.e., soil exposure from vegetation removal) and water quality were performed on datasets ranging from daily to yearly time scales. Time-series analyses of land disturbance were compared against the water quality variables of total suspended solids (TSS), turbidity, and visual clarity for the Hoteo River catchment on the North Island of New Zealand for the 2000–2013 period. During forest harvest and recovery phases, exotic forests were the dominant disturbance, up to five times the area of grassland disturbance; while after recovery, grasslands assumed the dominant role, for up to 16 times the area of forest disturbance. Time-series of TSS from field sampling (2000–2013) and TSS-event analyses (2012–2014) displayed distinct nonlinear patterns, suggesting that after major events, sediment that is stored in the landscape is exhausted and a period of sediment build-up follows until the next major event. Time-series analyses also showed a connection between trends in connected land disturbance and visual water clarity, with connected disturbance having the potential to be a water quality indicator. Future research should be conducted at even finer spatiotemporal scales over longer periods in order to identify effects of localized land disturbances on downstream water quality.
dc.description.departmentGeography and Environmental Studies
dc.formatText
dc.format.extent19 pages
dc.format.medium1 file (.pdf)
dc.identifier.citationKamarinas, I., Julian, J. P., Hughes, A. O., Owsley, B. C., & de Beurs, K. (2016). Nonlinear changes in land cover and sediment runoff in a New Zealand catchment dominated by plantation forestry and livestock grazing. Water, 8(10): 436.
dc.identifier.doihttps://doi.org/10.3390/w8100436
dc.identifier.issn2073-4441
dc.identifier.urihttps://hdl.handle.net/10877/13805
dc.language.isoen
dc.publisherMultidisciplinary Digital Publishing Institute
dc.rights.holder© 2016 The Authors.
dc.rights.licenseThis work is licensed under a Creative Commons Attribution 4.0 International License.
dc.sourceWater, 2016, Vol. 8, No. 10, Article 436.
dc.subjectnonlinear relationships
dc.subjectland use change
dc.subjectsediment erosion
dc.subjectlandscape disturbance
dc.subjectriver water quality
dc.subjectplantation forestry
dc.subjectlivestock grazing
dc.subjectGeography and Environmental Studies
dc.titleNonlinear Changes in Land Cover and Sediment Runoff in a New Zealand Catchment Dominated by Plantation Forestry and Livestock Grazing
dc.typeArticle

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
water-08-00436.pdf
Size:
5.32 MB
Format:
Adobe Portable Document Format
Description:
Download

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
2.54 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

College of Liberal Arts