Landcare Research - Manaaki Whenua

Landcare-Research -Manaaki Whenua

Erosion and sediment processes

Erosion and sediment processes encompasses a diversity of research and consultancy projects ranging from fundamental understanding of erosion processes, landscape dynamics and response in a changing environment, erosion and sediment modelling and tools for control and mitigation of soil and land degradation.

Erosion and Sediment processes research is involved in detailed physical process studies to large–scale catchment modelling, as well as investigating how erosion processes can be modified or mitigated. Traditional techniques are used as well as research into the development of new methods such as fingerprinting the sources of sediment using tracers, and the study of sediment dynamics in the Motueka, Raglan and Waipaoa catchments.

Reseach covers all land uses. Erosion assessment and mitigation efforts are currently focussed on sediment generation in the plantation forestry estate, and bank erosion with a focus on the stabilising characteristics of plants, particularly native plants.

Our research programmes also involve examining landscape response to climate and tectonic change and reconstruction of paleo–landscapes, which includes and utilises the research aspects mentioned above.


  • Fuller IC, Basher LR 2013. Riverbed digital elevation models as a tool for holistic river management: Motueka River, New Zealand. River research and applications 29(5): 619-633.
  • Fuller IC, Richardson JM, Basher L, Dykes RC, Vale SS 2012. Responses to river management? Geomorphic change over decadal and annual timescales in two gravel-bed rivers in New Zealand. In: Molina DA ed. River channels: types, dynamics and changes. New York, Nova Science. Pp. 137-164.
  • Phillips C, Marden M, Basher L 2012. Plantation forest harvesting and landscape response - what we know and what we need to know. New Zealand journal of forestry 56(4): 4-12.
  • Basher LR, Hicks DM, Clapp B, Hewitt T 2011. Sediment yield response to large storm events and forest harvesting, Motueka River, New Zealand. New Zealand Journal of Marine and Freshwater Research 45(3): 333-356.
  • De Rose RC, Basher LR 2011. Measurement of river bank and cliff erosion from sequential LIDAR and historical aerial photography. Geomorphology 126(1-2): 132-147.
  • Fuller IC, Basher L, Marden M, Massey C 2011. Using morphological adjustments to appraise sediment flux. Journal of hydrology, New Zealand 50(1): 59-80. <Go to ISI>://CABI:20113289094
  • Hicks DM, Shankar U, McKerchar AI, Basher L, Lynn I, Page M, Jessen M 2011. Suspended sediment yields from New Zealand rivers. Journal of hydrology, New Zealand 50(1): 81-142. <Go to ISI>://CABI:20113289095
  • Schmidt J, Cochrane T, Phillips C, Elliott S, Davies T, Basher L ed. 2008. Sediment dynamics in changing environments. Christchurch, N.Z., IAHS Press. 624 p.
  • Schmidt J, Almond PC, Basher L, Carrick S, Hewitt AE, Lynn IH, Webb TH 2005. Modelling loess landscapes for the South Island, New Zealand, based on expert knowledge. New Zealand journal of geology and geophysics 48(1): 117-133.
  • Watson A, Davie T, Basher L, Barringer J 2004. New Zealand - 6 : Motueka River. In: Tachikawa Y, James R, Abdullah K, Desa MNM ed. Catalogue of rivers for southeast Asia and the Pacific : Volume V. [Jakarta], UNESCO-IHP Regional Steering Committee for Southeast Asia and the Pacific. Pp. 159-175.
  • Basher LR, ed. 2003. The Motueka and Riwaka catchments : a technical report summarising the present state of knowledge of the catchments, management isues and research needs for integrated catchment management. Lincoln, Manaaki Whenua - Landcare Research. -120 p.
  • Cogle AL, Lane LJ, Basher LR 2003. Testing the hillslope erosion model for application in India, New Zealand and Australia. Environmental modelling and software 18: 825-830.
  • Forsyth PJ, Barrell DJA, Basher LR, Berryman KR 2003. Holocene landscape evolution of the Havelock and Upper Rangitata valleys, South Canterbury, New Zealand. Institute of Geological & Nuclear Sciences science report. 2003/22. Lower Hutt, Institute of Geological & Nuclear Sciences. -45 p.
  • Quine TA, Basher LR, Nicholas AP 2003. Tillage erosion intensity in the South Canterbury downlands, New Zealand. Australian Journal of Soil Research 41: 789-807.
  • Basher L 2002. Pedology from Ministry of Works to Landcare Research. In: Adams J ed. Jubilee reminiscences : fifty years of soil science memories. 3 ed. New Zealand Society of Soil Science occasional publication. Lincoln, New Zealand Society of Soil Science. Pp. 9-11.
  • Basher LR, Ross CW 2002. Soil erosion rates under intensive vegetable production on clay loam, strongly structured soils at Pukekohe, New Zealand. Australian Journal of Soil Research 40(6): 947-961.
  • Tonkin PJ, Basher LR 2001/3. Soil chronosequences in subalpine superhumid Cropp Basin, western Southern Alps, New Zealand. New Zealand journal of geology and geophysics 44(1): 37-45.
  • Basher LR, Ross CW 2001/11. Role of wheel tracks in runoff generation and erosion under vegetable production on a clay loam soil at Pukekohe, New Zealand. Soil and tillage research 62(3-4): 117-130.
  • Basher LR 2000. Surface erosion assessment using 137Cs : examples from New Zealand. Acta geologica hispanica 35(3-4): 219-228.
All Publications