Professor Richard Harper
B.Sc. Agric. (Hons), PhD

Chair in Sustainable Water Management

About me

Chair in Sustainable Water Management and Leader Agriculture, School of Veterinary and Life Sciences.

The Agriculture Cluster encompasses 20 academic staff, 35 research officers and research fellows, 26 technical staff, 31 part-time teachers and 75 PhD and MSc students. Research strengths are in Agricultural Biotechnology, Animal Production, Crop and Pasture Production and Forestry Sciences. Other research in the Cluster includes soil and water management and climate change management. From 2016, undergraduate teaching will comprise majors in Animal Science, Animal Health and Crop and Pasture Science, the latter including an emphasis on sustainable intensification and new technologies.

I have a B.Sc. Agric. (Hons) and PhD (Soil Science), both from the University of Western Australia, and had twenty years science and policy experience with the Western Australian Government in programs addressing salinity, plantation and farm forestry and climate change mitigation. Prior to undertaking my PhD I spent several years in research and advisory roles in rural related industries. I joined Murdoch in 2009, in a position initially funded by Alcoa, and have developed a research program investigating the use of carbon mitigation investment to drive landscape scale change in soil and water management. This program currently comprises 8 PhD students and 1 Post-Doctoral Fellow.

Recent publications in collaboration with various authors have explored both the science and policy aspects of climate mitigation, using bioenergy, reforestation or soil amendments. This includes new approaches that enhance environmental co-benefits particularly in relation to soil and water management where there are many long-standing, intractable problems. The impacts of carbon mitigation on food security and the extension of market-based approaches to other environmental problems have also been investigated. I was a lead author on the recent (2014) IPCC Fifth Assessment Report (WGIII) chapter on mitigation using Agriculture, Forestry and other Land-Uses (AFOLU).

I am the Chair of the recently approved IUFRO Taskforce on Forests, Soil and Water (2015-2017), a visiting Professor with the Chinese Academy of Forestry, Vice-President of the Australian Council of Agricultural Deans and an associate editor of Soil Research.

Teaching area

I currently teach in the undergraduate units ENV102 (Intro to Environmental Science; surface and groundwater hydrology; climate change mitigation); ENV212 (Global and Regional Sustainability; food security, water security); ENV243 (Water and Earth; introductory hydrology, geomorphology and geology); ENV554 (Land Management; land capability, hydrology and land-use, climate change mitigation and land-use).

Recently completed Honours projects have been:

  1. Neil George (2013). The effect of Alkaloam on soil microbiology and organic matter in Perth sands (B.Sc. Biol. Honours). (with Dr G. O’Hara)
  2. Simon Yeap (2014) Dewatering of iron ore mines: exploring the implications of discharge water for soil properties and plant growth along receiving streams (B. Env. Sci. Hons). (with Prof. R. Bell)
  3. Sandra Vujasinovic (2014). A life cycle assessment of biomass production through a phase farming system (B. Env. Sci. Hons)
  4. Geraldine Treloar (2014). Groundwater pollution from relict land-fill sites (B. Env. Sci. Hons).
  5. Lewis Walden (2014). Prospects for carbon mitigation on saline abandoned land with saltbush (Atriplex spp). (B. Env. Sci. Hons).

Recently completed Independent Study Contract (ISC) (ENV395) projects have been:

  1. Lewis Walden (2013). The induction of water repellency following Eucalyptus globulus reforestation
  2. Tammy Partridge (2015) Economic viability of carbon reforestation on salinized and productive farmland in the Western Australian wheatbelt

Recently completed Master of Science (Environmental Science, ENV600) theses have been:

  1. G. Busby (2011). Clay amended sandy soils: A biophysical and economic assessment of amending sandy soils with clay as a carbon offset strategy (M.Sc. Env. Sci).
  2. R. Wochesländer (2011). Investigating the possible use of carbon sequestration for wetland restoration: a scoping study on the Swan Coastal Plain (M.Sc. Env. Sci).
  3. E. Smithers (2012). Ecosystem carbon dynamics following bauxite mining in jarrah (Eucalyptus marginata) forests in south-western Australia (M.Sc. Env. Sci).
  4. A. Gianatti (2012). Is growing trees for carbon credits in the low rainfall Western Australian wheatbelt after 10 years profitable? (M.Sc. Env. Sci).
  5. O. Cowell (2012). Emerging approaches to water quality improvement and options for the Peel-Harvey Catchment in Western Australia (M.Sc. Env. Sci).
  6. M. Ee Harrison (2013). Sustainability and impact assessment criteria for treated wastewater disposal into ephemeral creek systems in Karratha, Western Australia (M.Sc. Env. Sci).
  7. G. Fardin (2013). Investigating the consequences of flow barriers on water flows and nutrient export in the Peel Main Drain, Western Australia (M.Sc. Env. Sci).

Research areas

land and water management, non-wetting (water repellent) soils, carbon mitigation in the land sector, reforestation, desertification, aeolian geomorphology

Current projects

Evaluation of soil carbon in the Peel Region as a new option for engaging in the emerging carbon economy. 2010, Royalties for Regions, Peel Development Commission. Completed.

Impacts of China’s carbon reforestation programme on water yield and quality and determining the potential for collaboration for Australian universities and industry, 2011, Australian Government: Australia-China Agricultural Cooperation Agreement (ACACA), Completed.

Lead authorship of IPCC chapter on mitigation using the Agriculture, Forestry and other Land Uses (AFOLU) for the 5th Assessment Report, 2011, Dept Climate Change and Energy Efficiency. Completion 2014.

Primary Industries Adaptation Research Network; Forest node coordination, 2012, National Climate Change Adaptation Research Facility.

Assessing the nutritional benefits of claying and cultivation of sands, 2012, Grains Research and Development Corporation (with Prof. R. Bell, Murdoch).

EverCrop® Carbon Plus: Perennial based pasture cropping systems to manage soil carbon, 2012, DAFF, (with CRC Future Farm Industries, NSW DPI, DAFWA, CSIRO Land and Water).

Events and speaking engagements

Water: Agriculture, Food, Water and Energy Nexus. AusBiotech, Perth, WA. 10 July 2014.

Business Water Forum: Forgotten Groundwater. United States Study Centre at the University of Sydney; Stanford Woods Institute for the Environment. University House, Australian National University, 28-29 May 2014

Using emerging carbon mitigation markets to improve natural resource management, Vietnamese Academy of Forest Sciences, Hanoi 30 July 2014.

Carbon mitigation and the land: risks and opportunities. Winthrop Probus Club, Winthrop. 21 May 2014.

Managing land and water in water constrained environments. Australia Unlimited; Water Resources Management; Australian Trade Commission. Conrad Hilton, Dubai. 13 April 2014.

Using forests and soils to manage carbon in Australia. Chinese Academy of Forestry, Beijing, 23 September 2013.

Using emerging carbon mitigation markets to improve natural resource management, Northwest Agriculture and Forest University, Yangling, China, 16 September 2013.

Climate change and opportunities for agriculture. Sustainability Forum, Department of Agriculture and Food. Esplanade, Fremantle, 6 September, 2013.

Trees and sustainable agriculture. Presentation to Trees in Agriculture Workshop; Murdoch University 20 June 2013.

Using forest-based climate mitigation to manage water resources. IUFROLAT 2013, Third IUFRO Latin American Congress. 12-14 June, 2013, San José, Costa Rica.

Water and natural resource management: A Western Australian perspective. National NRM Chairs Forum, Mandurah, 21 March 2013.

Forestry: contributions to climate change adaptation. In “Climate change adaptation in the primary industries Masterclass.” NCCARF Primary Industries Adaptation Network, Canberra, 13 February 2013,

Increasing soil carbon storage in sandy soils with clay amendments. The CCRSPI (Climate Change Strategy for the Primary Industries) Conference 2012, Melbourne. 27-29 November 2012. p. 75.

Opportunities for soil and water management in the new carbon economy. South West Metro Region U3A (UWA) Inc. Melville Recreation Centre, 19 May 2012.

The soil component in forest drought responses. In “Managing future impacts of drought risk and mortality in Australian forests”, CRC Forestry/CSIRO, Melbourne, 21 February 2012.

Carbon sequestration: conflicts and benefits. 5th World Congress for Conservation Agriculture, Brisbane, 29 September 2011.

The adaptation applications of carbon forestry to improve climate resilience. In “Climate change adaptation in the primary industries Masterclass.” NCCARF Primary Industries Adaptation Network, Canberra, 22 February 2012.

The soil component in forest drought responses. In “Managing future impacts of drought risk and mortality in Australian forests”, CRC Forestry/CSIRO, Melbourne, 21 February 2012.

Soil carbon losses following wind erosion. Department of Agriculture and Food, Seminar. 3 November 2011.

The potential for the Carbon Farming Initiative to improve catchment condition. River Forum 2011 – Sharing Knowledge – Use – Responsibility. Perth Convention Centre, 2 November, 2011.

Evaluation of carbon sequestration in soils treated with Alkaloam. Chamber of Minerals and Energy of Western Australia. “Reduce and Renew: The resource industry’s proactive response to a changing climate. Perth Convention Centre, 23 September 2011.

Using carbon reforestation for water and environmental restoration. Seminar, Gyeongnam National University of Science and Technology, Jinju, South Korea, July 16 2011.

Carbon mitigation investment in forests and soils: implications for water management. Seminar, Centre for Water Research, The University of Western Australia, 22 June 2011.

Carbon investment in landscape restoration for biodiversity and watershed benefits. Invited Keynote, 1st International Conference on Arid Land/Desert Technology 10, Narita, Japan, 24-28 May, 2011.

Drawing lessons for climate change adaptation from recurrent droughts in Australian plantation forests. The CCRSPI (Climate Change Research Strategy for Primary Industries) Conference, Melbourne, Victoria, 15-17 February, 2011. p. 70.

Evolution of Australia’s forest climate change policies after 1997. Chinese Academy of Forestry, Beijing, 22 November, 2010.

Ecohydrological approaches to managing water yield and quality. Chinese Academy of Forestry, Beijing, 22 November, 2010.

Mining and sustainable water use: a Western Australian perspective. 13th International River Symposium, Perth, WA 11-14 October 2010.

Professional and community service

Chair, International Union of Forest Research Organizations (IUFRO) Taskforce on Forests, Soil and Water Interactions (2015-17)

Member, Australian Emissions Reduction Assurance Committee (2015-)

Member, Australian Council of Agricultural Deans (2014-)

Visiting Professor, Chinese Academy of Forestry (2013-).

Primary Industries Adaptation Research Network (PIARN), National Climate Change Adaptation Research Facility, Forestry Node Coordinator (2010-2013).

Murdoch University; Member of Academic Council (2013-14).

18th Congress for the International Soil Conservation Organization, El Paso, Texas, 2015. Member of International Advisory Committee.

International Conference on Arid Land (DTXI), San Antonio, Texas, 2013. Member of International Advisory Committee.

Soil Research, Associate editor (2010-).

Alcoa Chair in Sustainable Water Management, Murdoch (2009-2012).

International Conference on Arid Land (ICAL1/DTX), Narita, Japan, 2011. Member of International Advisory Committee.

WA Chamber of Commerce and Industry, Environment Committee (2011-14)

National Climate Change Adaptation Research Facility (NCCARF). Griffith University. Member of Management Committee (Murdoch Representative) (2010-12).

The University of Western Australia, Convocation. Chair of Awards sub-committee (2008-11), Deputy Warden (2011-12); Council Member (2008-2015).

Doctoral and masters supervisions

Recent thesis completions in Masters of Science (Environmental Science) (ENV600) include:

  1. G. Busby (2011). Clay amended sandy soils: A biophysical and economic assessment of amending sandy soils with clay as a carbon offset strategy.
  2. R. Wochesländer (2011). Investigating the possible use of carbon sequestration for wetland restoration: a scoping study on the Swan Coastal Plain.
  3. E. Smithers (2012). Ecosystem carbon dynamics following bauxite mining in jarrah (Eucalyptus marginata) forests in south-western Australia.
  4. A. Gianatti (2012). Is growing trees for carbon credits in the low rainfall Western Australian wheatbelt after 10 years profitable?
  5. O. Cowell (2012). Emerging approaches to water quality improvement and options for the Peel-Harvey Catchment in Western Australia.
  6. M. Ee (2013). Sustainability and impact assessment criteria for treated wastewater disposal into ephemeral creek systems in Karratha, Western Australia.
  7. G. Fardin (2013). Investigating the consequences of flow barriers on water flows and nutrient export in the Peel Main Drain, Western Australia.

Current PhD students are:

  1. Podjarnee Sangmanee – Carbon stores and dynamics under forests in deep (>10 m) soils (with Prof. B. Dell, Dr D. Henry).
  2. Stan Sochacki –Carbon mitigation using short rotation bioenergy systems (with Prof B. Dell, W/Prof. K. Smettem).
  3. Joanne Stewart – Carbon mitigation options for indigenous communities (with Dr M. Anda).
  4. John Ruprecht – Understanding the role of land-use change on hydrology and water resources (with Prof. B. Dell).
  5. Ning Liu – Climate change and responses in forests and water in SW Western Australia (with Prof. B. Dell; Prof. S. Liu)
  6. S.M. Mijan Uddin – Ecohydrological implications of water repellency and eucalypt forests (with Dr D. Henry, Prof. R. Bell)
  7. Lewis Walden – Evaluating and valuing the co-benefits and trade-offs of land-based carbon mitigation projects (with Prof. B. Dell)

 

Publications

Refereed journal papers and book chapters

Walden, L.L., Harper, R.J., Mendham, D.S., Henry, D.J. and Fontaine, J.B. (2015). Eucalyptus reforestation induces soil water repellency. Soil Research 53, 168–177

Dean, C., Kirkpatrick, J., Harper, R.J. and Eldridge, D.J. (2015). Optimising carbon sequestration in arid and semiarid rangelands. Ecological Engineering 74, 148-163.

Bustamante, M, Robledo-Abad, C., Harper, R., Mbow, C, Ravindranath, N.H., Sperling, F, Haberl, H., de Siqueira Pinto, A. Smith, P. (2014). Co-benefits, trade-offs, barriers and policies for greenhouse gas mitigation in the agriculture, forestry and other land use (AFOLU) sector. Global Change Biology 20: 3270–3290.

Smith P, Bustamante M, Ahammad H, Clark H, Dong H, Elsiddig EA, Haberl H, Harper R, House J, Jafari M, Masera O, Mbow C, Ravindranath NH, Rice CE, Robledo Abad C, Romanovskaya A, Sperling F, Tubiello FN (2014) Agriculture, Forestry and Other Land Use (AFOLU). In ‘Climate Change 2014: Mitigation of Climate Change. Contribution of Working Group III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change’. (Eds O Edenhofer, R Pichs-Madruga, Y Sokona, E Farahani, S Kadner, K Seyboth, A Adler, I Baum, S Brunner, P Eickemeier, B Kriemann, J Savolainen, S Schlömer, C von Stechow, T Zwickel, JC Minx) pp. 811-922. (Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.

Churchman, G.J., Noble, A., Bailey, G., Chittleborough, D.J and Harper, R.J. (2014). Clay addition and redistribution to enhance carbon sequestration in soils. In Soil Carbon, Hartemink, A.E. and McSweeney, K. (Eds). Progress in Soil Science 26: 327-335. (Springer International Publishing: New York).

Harper, R.J., Sochacki, S.J., Smettem, K.R.J. and Robinson, N. (2014). Managing water in agricultural landscapes with short rotation biomass plantations. GCB Bioenergy 6 544-555.

Smith, P., Haberl, H., Popp, A., Erb, K.H., Lauk, C., Harper, R.J., Tubiello, F., de Siqueira Pinto, A., Jafari, M., Sohi, S., Masera, O., Böttcher, H., Berndes, G., Bustamante, M., Ahammad, H., Clark, H., Dong, H., Abdalla Elsiddig, E., Mbow, C., Ravindranath, N.H., Rice, C.W., Sperling, F., Herrero, M., House, J.I., and Rose, S. (2013). How much land based greenhouse gas mitigation can be achieved without compromising food security and environmental goals? Global Change Biology 19: 2285-2302.

Harper, R.J. and Tibbett, M. (2013). The hidden carbon in deep mineral soils Plant and Soil 368: 641-648.

Sochacki S.J., Harper R.J., Smettem, K.R.J., Dell, B. and Wu, H. (2013). Evaluating a sustainability index for nutrients in a short rotation energy cropping system. GCB Bioenergy 5: 315-326.

Harper, R.J., Smettem, K.R.J, Townsend, P.V., Bartle, J.R and McGrath, J.F. (2012). Broad-scale restoration of landscape function with timber, carbon and water investment. In “Forest Landscape Restoration: Integrating Social and Natural Sciences”, Stanturf, J. A.; Lamb, D.; Madsen, P. (Eds) World Forests 15: 275-292. (Springer: New York).

George, S.J., Harper, R.J., Hobbs, R.J., Tibbett, M. (2012). A sustainable agricultural landscape for Australia: interlacing carbon sequestration, biodiversity and salinity management in agroforestry systems. Agriculture, Ecosystems and Environment 163: 28-36.

Harper, R.J., Okom, A.E.A., Stilwell, A.T., Tibbett, M., Dean, C., George, S.J., Sochacki, S.J., Mitchell, C.D., Mann, S.S., Dods, K. (2012). Reforesting degraded agricultural landscapes with Eucalypts: effects on soil carbon storage and soil fertility after 26 years. Agriculture, Ecosystems and Environment 163: 3-13.

Mitchell, C.D., Harper, R.J., Keenan, R.J. (2012). Status and prospects of carbon forestry in Australia. Australian Forestry 75, 200-212.

Dean, C., Roxburgh, S.H., Harper, R.J., Eldridge, D.J., Watson, I.W., Wardell-Johnson, G.W. (2012) Accounting for space and time in soil carbon dynamics in timbered rangelands. Ecological Engineering 38, 51-64.

Sochacki S.J., Harper R.J. and Smettem, K.R.J. (2012) Bio-mitigation of carbon from reforestation of abandoned farmland. GCB Bioenergy 4, 193-201.

Townsend, P.V., Harper, R.J., Brennan, P.D, Wu, S., Smettem, K.R.J. and Cook, S.E. (2012). Multiple environmental services as an opportunity for watershed restoration. Forest Policy and Economics 17, 45-58.

Dean, C., Wardell-Johnson, G. W. and Harper, R.J. (2012). Carbon management of commercial rangelands in Australia: major pools and fluxes. Agriculture, Ecosystems & Environment 148, 44-64.

Kurosawa, K., Aikawa, S., Oda, Y., Kojima, T, Kawarasaki, S., Saito, M, Sugunuma, H., Harper, R.J. and Tanouchi, H. (2012). An analysis of root biomass in a sapling cultivation experiment for afforestation on salt affected land. Journal of Arid Land Studies 22, 131-134.

Harper, R.J., Smettem, K.R.J., Sochacki, S.J., Nakagami, Y., Honda, S., Takahashi, F., Kawamoto, K, and Bulinski, J. (2011). Using carbon reforestation for water and environmental restoration. Journal of Arid Land Studies 21, 57-61.

Bi, H., Long, Y., Turner, J., Lei, Y., Snowdon, P., Li, Y., Harper, R., Zerihun, A. and Ximenes, F. (2010). Additive prediction of aboveground biomass for Pinus radiata (D. Don) plantations. Forest Ecology and Management 259, 2301-2314.

Kurosawa, K., Suganuma, H., Aikawa, S., Kawarasaki, S., Hamano, H., Utsugi, H, Abe. Y., Kojima, T., Harper, R., Luff, J., Stock, W., Lund, M. and Bannister, M. (2010): Long-term changes in precipitation characteristics at Sturt Meadows, Western Australia. Journal of Ecotechnology Research, 16, 27-31.

Harper, R.J., Sochacki, S.J., Smettem, K.R.J. and Robinson, N. (2010). Bioenergy feedstock potential from short rotation woody crops in a dryland environment. Energy & Fuels 24, 225-231.

Harper, R. J., Gilkes, R. J., Hill, M.J and Carter, D.J. (2010). Wind erosion and soil carbon dynamics in south-western Australia. Aeolian Research 1, 129-141.

Kojima, T., Inaba, K., Koyanagi, S., Suganuma, H., Kurosawa, K., Kawarasaki, S., Tanouchi, H. Harper, R.J, Yamada, K., Hamano, H. (2009). Improvement effect of semi-arid land afforestation on soil environment. Journal of Arid Land Studies 19, 141-144.

Harper RJ, Smettem KRJ, Carter JO and McGrath JF (2009). Drought deaths in Eucalyptus globulus (Labill.) plantations in relation to soils, geomorphology and climate. Plant and Soil 324, 199-207.

Glindemann, R., Harper, R.J. and Dawkins, S. (2009). Land use, forestry and native title. In Hodgkinson, D. (Ed), Australian Climate Change Law and Policy. (LexisNexis, Sydney).

Smettem, K.R.J. and Harper, R.J. (2009). Using trees to manage local and regional water balances, pp. 37-52, In “Agroforestry for Natural Resource Management”, I.K. Nuberg, B.H. George and R.F. Reid (Eds). (CSIRO Publishing: Melbourne).

Harper, R.J., Smettem, K.R.J., Reid, R.F., Callister, A., McGrath, J.F. and Brennan, P.B. (2009). Pulpwood crops, pp. 199-218, In “Agroforestry for Natural Resource Management”, I.K. Nuberg, B.H. George and R.F. Reid (Eds). (CSIRO Publishing: Melbourne).

Sochacki S.J., Harper RJ and Smettem, K.R.J. (2007). Estimation of woody biomass for short rotation bio-energy species in south-western Australia. Biomass & Bioenergy 31, 608-616.

Harper RJ, Beck AC, Ritson P, Hill MJ, Mitchell CD, Barrett DJ, Smettem KRJ, Mann SS (2007) The potential of greenhouse sinks to underwrite improved land management. Ecological Engineering 29, 329-341.

Pracilio G, Smettem KRJ, Bennett, D., Harper RJ and Adams ML (2006) Site assessment of a woody crop where a shallow hardpan soil layer constrained plant growth. Plant and Soil 288, 113-125.

Robinson, N., Harper, R. J. and Smettem, K. R. J. (2006). Soil water depletion by Eucalyptus spp. tree belts integrated into dryland agricultural systems. Plant and Soil 286, 141-151.

Harper, R.J. and Smettem, K.R.J. (2006). Using soil and climatic data to estimate carbon sequestration and recharge reduction at farm, watershed and regional scales Journal of Arid Land Studies 15, 255-258.

Smettem, K.R.J., Harper, R.J. and Watanabe, F. (2006). Can concepts of ecological optimality provide guidance for predicting the performance of replanted perennial vegetation in dryland areas? Journal of Arid Land Studies 15, 367-370.

Pracilio G, Adams ML, Smettem KRJ and Harper RJ (2006). Determination of spatial distribution patterns of clay and plant available potassium contents in surface soils at the farm scale using high resolution gamma ray spectrometry. Plant and Soil 282, 67-82.

Archibald, R. D., Harper, R. J., Fox, J. E. D., and Silberstein, R. P. (2006). Tree performance and root-zone salt accumulation in three dryland Australian plantations. Agroforestry Systems 66, 191-204.

Harper, R.J., Robinson, N., Smettem, K.R.J., Sochacki, S.J. (2005). Phase farming with trees: the acceleration of farm forestry to combat dryland salinity. International Forestry Review 7, 276-7.

Smettem, K.R.J., Pracilio, G., Oliver, Y.M. and Harper R.J. (2005). Data availability and scale in hydrologic applications. Y. Pachepsky and W.J. Rawls (Eds), Development of Pedotransfer Functions in Soil Hydrology, Developments in Soil Science 30, 253-271.

Harper, R.J., Smettem, K.R.J. and Tomlinson, R.J. (2005). Using soil and climatic data to estimate the performance of trees, carbon sequestration and recharge potential at the catchment scale. Australian Journal of Experimental Agriculture 45, 1389-1401.

Harper, R. J., and Gilkes, R. J. (2004). The effects of clay and sand additions on the strength of sandy topsoils. Australian Journal of Soil Research, 42, 39-44.

Harper, R. J., and Gilkes, R. J. (2004). Aeolian influences on the soils and landforms of the southern Yilgarn Craton of semi-arid, south-western Australia. Geomorphology, 59, 215-235.

Hatton, T. J., Dawes, W., and Harper, R. J. (2002). Woodlots in rotation with agriculture. In ‘Trees, Water and Salt – an Australian guide to using trees for healthy catchments and productive farms’ (Stirzaker, R., Vertessy, R., and Sarre, A. Eds) (Rural Industries Research and Development Corporation: Canberra). pp 43-55.

Ryan, P. J., Harper, R. J., Laffan, M. D., Booth, T. H., and McKenzie, N. J. (2002). Site assessment for farm forestry in Australia and its relationship to scale, productivity and sustainability. Forest Ecology and Management, 171, 133-152.

Harper, R. J., and Gilkes, R. J. (2001). Some factors affecting the distribution of carbon in soils of a dryland agricultural system in southwestern Australia. In ‘Assessment Methods for Soil Carbon Pools.’ (R. Lal, J. M. Kimble, R. F. Follett, and B. A. Stewart Eds), pp. 577-91. (Lewis Publishers: Boca Raton, Florida.)

Harper, R. J., McKissock, I., Gilkes, R. J., Carter, D. J., and Blackwell, P. S. (2000). A multivariate framework for interpreting the effects of soil properties, soil management and landuse on water repellency. Journal of Hydrology, 231-232, 371-83.

Wong, M. T. F., and Harper, R. J. (1999). Use of on-ground gamma-ray spectrometry to measure plant-available potassium and other topsoil attributes. Australian Journal of Soil Research 37, 267-77.

McKissock, I., Gilkes, R. J., Harper, R. J. and Carter, D. J. (1998). Relationships of water repellency to soil properties for different spatial scales of study. Australian Journal of Soil Research 36, 495-507.

Harper, R. J. and Gilkes, R. J. (1994). Evaluation of the 137Cs technique for estimating wind erosion losses for some sandy Western Australian soils. Australian Journal of Soil Research 32, 1369-87.

Harper, R. J. and Gilkes, R. J. (1994). Soil attributes affecting water repellency and the utility of soil survey in predicting its occurrence. Australian Journal of Soil Research 32, 1109-24.

Harper, R. J. and Gilkes, R. J. (1994). Hardsetting in the surface horizons of sandy soils and its implications for soil classification and management. Australian Journal of Soil Research 32, 603-19.

Harper, R. J., Gilkes, R. J., and Robson, A. D. (1982). Biocrystallization of quartz and calcium phosphates in plants: a re-evaluation of the evidence. Australian Journal of Agricultural Research 33, 563-71.

Conferences – abstracts and papers

Harper, R.J., Sochacki, S.J., Walden, L.L. and Smettem, K.R.J. (2015). Using emerging carbon markets to manage dryland salinity: some recent approaches from southwestern Australia. IUFRO Unit 1.02.05. Unit 1.02.05 Symposium: Silviculture and Management of Dryland Forests. Stellenbosch University, 16-19 March 2015.

Harper, R.J. and Mitchell, C.D. (2014). Continued evolution of Australian forest-climate change policies.  XXIV IUFRO World Congress 2014 – Salt Lake City, Utah, United States, 5-11 October 2014 “Sustaining Forests, Sustaining People: The Role of Research”. International Forestry Review, 16: 90.

Sochacki, S.J., Harper, R.J., Smettem, K.R.J. and Dell, B. (2014). A sustainability index for improving nutrient management in short rotation bioenergy systems. XXIV IUFRO World Congress 2014 – Salt Lake City, Utah, United States, 5-11 October 2014 “Sustaining Forests, Sustaining People: The Role of Research”. International Forestry Review, 16: 261.

Harper, R.J., Sochacki, S.J. and Ruprecht, J. (2014). Optimising water co-benefits from forest carbon mitigation. XXIV IUFRO World Congress 2014 – Salt Lake City, Utah, United States, 5-11 October 2014 “Sustaining Forests, Sustaining People: The Role of Research”. International Forestry Review, 16: 243.

Harper, R., Brouwers, N., Dell, B., Ellsworth, D., Hardy, G., Joyce, L., McGrath, J., McGuire, D., Mitchell, P., Stanturf, J., and Liu, S. (2014). Understanding past climate impacts on forests to devise future climate change management strategies. GCUA Workshop 5 “The Future of Forests – To Manage Forests for People”, June 25-27, 2014, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden

Ruprecht, J., Sparks, T. and Harper, R.J. (2014) River recovery from salinization: Denmark River Western Australia. Salinity Forum 2014; University of California Riverside, June 16-18, 2014.

Harper, R.J., Sochacki, S.J. and Smettem K.R.J. (2014). Salinity control using carbon mitigation investment: some recent approaches. Salinity Forum 2014; University of California Riverside, June 16-18, 2014.

Harper, R.J., Sochacki, S.J., Bell, R.W., Chittleborough, D.J., Churchman, G.J., Setia, R., Carter, J., Smith, P., Gottschalk, P. and George, N. (2013). Increasing soil carbon storage in sandy soils with clay amendments. Desert Technology 11, San Antonio, Texas, 19-21 November, 2013.

Jeong, J., McGuire, D., Bolan, N.S., Naidu, R, Harper, R.J., Kim, C. (2013). Soil carbon storage as impacted by stand age and site quality of Pinus radiata plantations in South Australia. p. 27. 9th International Carbon Dioxide Conference, Beijing. 3-7 June 2013.

Jeong, J., McGuire, D., Bolan, N.S., Naidu, R, Harper, R.J., Kim, C. (2013). Carbon stocks across a stand age sequence in Pinus radiata plantations in South Australia. p. 26. 9th International Carbon Dioxide Conference, Beijing. 3-7 June 2013.

Harper, R.J., Dell, B., Mitchell, C.D., Ruprecht, J.K., Smettem, K.R.J. and Sochacki, S.J. (2013) Using forest-based climate mitigation to manage water resources. IUFROLAT 2013, Third IUFRO Latin American Congress. 12-14 June, 2013, San José, Costa Rica.

Sochacki, S.J, Harper, R.J. and Gianatti, A. (2012). Using abandoned land to mitigate carbon in Australian farming systems. The CCRSPI (Climate Change Strategy for the Primary Industries) Conference 2012, Melbourne. 27-29 November 2012. p. 55.

Harper, R.J., Sochacki, S.J., Bell, R.W., Chittleborough, D.J., Churchman, G.J., Summers, R., Tibbett, M. and Smith, P. (2012). Increasing soil carbon storage in sandy soils with clay amendments. The CCRSPI (Climate Change Strategy for the Primary Industries) Conference 2012, Melbourne. 27-29 November 2012. p. 75.

Harper, R.J. The adaptation applications of carbon forestry to improve climate resilience. In “Climate change adaptation in the primary industries Masterclass.” NCCARF Primary Industries Adaptation Network, Canberra, 22 February 2012.

Harper, R.J. The soil component in forest drought responses. In “Managing future impacts of drought risk and mortality in Australian forests”, CRC Forestry/CSIRO, Melbourne, 21 February 2012.

Smettem, K.R.J., Harper, R.J., Waring, R.H and Callow, N. (2011). Managing perennial revegetation in a changing climate: some lessons from ecohydrology. American Geophysical Union, Fall Meeting 2011. San Francisco, California, 5-9 December, 2011.

Harper, R.J. Carbon sequestration: conflicts and benefits. 5th World Congress for Conservation Agriculture, Brisbane, 29 September 2011.

Woscheslander, R., Harper, R.J. and Kobryn, H. (2011). Using the Carbon Farming Initiative to drive wetland restoration in south-western Western Australia. The 7th International Symposium on Digital Earth (ISDE7) 23 – 25 August 2011

Harper, R.J. and Smettem, K.R.J. and Mitchell, C.D. (2011). Using carbon and water ecosystem services to restore catchment function. The 7th International Symposium on Digital Earth (ISDE7) 23 – 25 August 2011

Stewart, J, Harper, R.J. and Anda, M. (2011). Developing a model of carbon sinks and sources for Indigenous communities in Australia. 2011 International Congress on Modelling and Simulation (MODSIM 2011), Perth Convention and Exhibition Centre in Perth, Western Australia, 12-16 December 2011

McGrath, J.F., Dumbrell, I., Harper, R.J., Crombie, D.S and White, D. (2011). Optimising water use and minimising drought risks in biomass production. An Australian perspective. Bioenergy Australia 2011 Conference, Towards 2020 – growing our sustainable future. Novotel Twin Waters Resort, Queensland, 24-25 November 2011.

Mitchell, C.D. and Harper, R.J. Australian regulatory developments in using forests for carbon mitigation. Beyond a Carbon Price: A Framework for Climate Change Regulation in Australia. Workshop, Melbourne University, 11-12 August, 2011.

Harper, R.J., Smettem, K.R.J. and McGuire, D.O. (2011). Interactions of soils, forest growth and catchment hydrology: examples from southern Australia. IUGG 2011 (International Union of Geodesy and Geophysics General Assembly), Melbourne, Australia. 28 June – 7 July 2011.

Kurosawa, K., Aikawa, S., Kojima, T, Kawarasaki, S., Saito, M, Harper, R.J. and Tanouchi, H. An analysis of root biomass in a sapling cultivation experiment for afforestation on salt affected land. 1st International Conference on Arid Land/Desert Technology 10, Narita, Japan, 24-28 May, 2011. p. 40.

Harper, R.J., Townsend, P.V. and Smettem, K.R.J. Bundling environmental services from catchment reforestation. 1st International Conference on Arid Land/Desert Technology 10, Narita, Japan, 24-28 May, 2011. p. 60.

Harper, R.J. Using carbon investment to achieve water and other NRM benefits. Australian Oil Mallee Industry Conference, South of Perth Yacht Club, Applecross, WA. 15 April 2011.

Mitchell, C.D and Harper, R.J. Status and prospects of carbon forestry in Australia. ABARES Outlook 2011 Conference, Canberra, 1-2 March 2011.

Harper, R.J., McGrath, J.F., Smettem, K.R.J., McGuire, D., Baker, T. and Evans, B. Drawing lessons for climate change adaptation from recurrent droughts in Australian plantation forests. The CCRSPI (Climate Change Research Strategy for Primary Industries) Conference, Melbourne, Victoria, 15-17 February 2011. p. 70.

Harper, R.J. and Smettem, K.R.J. Using reforestation to improve water quality in large agricultural watersheds. International Conference on Integrated Water Management, 2-5 February 2011, Murdoch University, Western Australia.

Harper, R.J. and Smettem, K.R.J. Using carbon mitigation to restore water quality in large deforested watersheds. International Association of Hydrological Sciences, 5th International Symposium on Integrated Water Resources Management/3rd International Symposium on Methodology in Hydrology, 19-21 November 2010, Nanjing, China.

Harper, R.J. Carbon investment in landscape restoration for biodiversity and watershed benefits. 3rd Beijing Forest Forum: Low-carbon economy and carbon forestry. 27-28 September 2010. Beijing, China.

Harper, R.J. and Tibbett, M. (2010). Previously unreported organic carbon stores in deep regolithic soils. XXIII IUFRO World Congress, 23-28 August 2010, Seoul, South Korea. International Forestry Review, 12: 166.

Harper, R.J., Sochacki, S.J., Smettem, K.R.J. and Kojima, T. (2010). Bio-mitigation of carbon through the reforestation of abandoned farmland. XXIII IUFRO World Congress, 23-28 August 2010, Seoul, South Korea. International Forestry Review, 12: 3.

Harper, R.J. and Buizer, M. (2010). Evolution of Australian climate change policy in the post-Kyoto period. XXIII IUFRO World Congress, 23-28 August, 2010, Seoul, South Korea. International Forestry Review, 12: 175.