Paper Presented at International Conferences/Seminars

  1. Sahat, S., Z. Yusop, M Askari  &A D Ziegler (2016) Estimation of Soil Erosion Rates in Oil Palm Plantation with Different Land Cove.  Soft Soil Engineering International Conference 2015 (SEIC2015).  IOP Conf. Series: Materials Science and Engineering 136 (2016) 012086 doi:10.1088/1757-899X/136/1/012086.
  2. Lloyd L. and Z. Yusop (2013) A macro focus with macro impact: Exploration of initial abstraction coefficient ratio in soil conservation services (SCS)  curve number (CN) methodology. 8th International Symposium  on Digital Earth. 26-29 Aug 2013, Kuching, Sarawak.
  3. Sairan, F., Idrus, D., Md Som, H., Mohd Kamil, N.A.F., Yusop, Z., Md Din, M.F. (2009) Assessment of the residential perception on the sewerage systems in Taman Ungku Aminah. International Conference on Industry Best Practices – Water Malaysia 2009. 19-21 May, Kuala Lumpur
  4. Soffee, N., Ujang, Z. and Yusop, Z. (2009) Evaluation of Kubang Pasu public water supply in the context of the new WHO water safety plans – A case study. International Conference on Industry Best Practices – Water Malaysia 2009. 19-21 May, Kuala Lumpur.
  5. Soffee, N. Ujang, Z. and Yusop, Z. (2009) The state of the art in management approach for assuring safe drinking water. International Conference on Industry Best Practices – Water Malaysia 2009. 19-21 May, Kuala Lumpur
  6. Zulkifli Yusop (2009) Water Supply Issues and Management Reform in Malaysia. The 1st Workshop on Water Supply Management System and Social Capital. Bandung 20 March.
  7. Mazlan H., T. Okuda, Zulkifli Yusop., S. Numata, S. Nishimura, M. Suzuki and T. Kondo (2005) Assessment of impact of landscape development on ecological services values and goods using integrated remote sensing and GIS techniques. International Workshop on The Landscape Level Rehabilitation of Degraded Tropical Forests. Tsukuba, Japan. (Abstract) Feb 2005
  8. Okuda, T., Mazlan H., Zulkifli Yusop., S. Numata, T. Kondo and K. Parker (2005). Application of GIS for sustainable forest management – linkage between the ecosystem management and forest rehabilitation. International Workshop on The Landscape Level Rehabilitation of Degraded Tropical Forests. Tsukuba, Japan. (Abstract).
  9. Zulkifli Yusop. and Maketab M. (2005) Roles of government agencies in environmental awareness activities: Experience of the Malaysian International Hydrology Program. Best of Both World Conference on Environmental Education for Sustainable Development, Kuala Lumpur, 6-8 Sept.
  10. Zulkifli Yusop., T. Okuda., Mazlan H. and S. Numata (2005) Estimation of soil and nutrient losses for quantifying watershed services. International Workshop on The Landscape Level Rehabilitation of Degraded Tropical Forests. Tsukuba, Japan.
  11. Ahmad, U.K., Ujang, Z., Zulkifli Yusop., Periaiah, N. and Selvaraju, G. (2004) Analysis of humic acid and fulvic acids from peat water samples employing solid phase extraction and fluorescence detection. Asia Water 2004 Conference, Kuala Lumpur.
  12. Chan, C.H., Zulkifli Yusop. and K.A. Mohd Nasir (2004) Modelling of watershed cumulative effects based on major land use using XPSWMM2000. 1st ASEAN Junior Scientists Workshop.
  13. Rahmat, S.N., Zulkifli Yusop. and M. Mohamed (2004) Non-point source pollution loadings from developed catchments in Skudai, 1st ASEAN Junior Scientists Workshop.
  14. Maketab M., Siti Nazahiyah R. and Zulkifli Yusop (2004) Non-Point Source Pollution Loadings from Residential And Commercial Area in Johor, Malaysia. 8th International Diffuse Pollution Conference, Kyoto Conference, Japan, 25-29 October
  15. Zulkifli Yusop., Maketab M. and Kamarul Azlan M. N. (2003) Water Quality and Pollution Loadings Assessment for Tebrau Catchment, Johor. East-Asia Regional Seminar on River Restoration, Kuala Lumpur 13-15 January 2003
  16. Zulkifli Yusop., Tan L.W., Kamarul Azlan M.N. and Maketab M. (2002) Stormwater quality and pollutant loadings from an urban catchment in Johor Bahru. Water Environmental Planning Seminar- Technologies of Water Resources Management, Kuala Lumpur, 15&16 October
  17. Maketab M, Zulkifli Yusop and Zaini U. (2002) Urban river rehabilitation- water quality and pollution loads of Sg. Tebrau, Johor. Water Environmental Planning Seminar- Technologies of Water Resources Management, Kuala Lumpur, 15&16 October
  18. Zulkifli Yusop., Abdul Rahim N. and Baharuddin K. (2001) Rainfall partitioning in an old growth tropical rain forest.  International Conference on Forestry and Forest Products Research (CFFPR 2001), Kuala Lumpur, 1-3 Oct.
  19. Chappell, N.A., Zulkifli Yusop., Abdul Rahim N., Tych Wlodek and Baharuddin, K (2000) Modelling spatially-significant effects of selective, tropical forestry on water, nutrient and sediment flows. Paper presented at Symposium & Workshop on Forest-Water-People in the Humid Tropics: Past, Present and Future Hydrological Research for Integrated Land and Water Management, Bangi. 30 July – 4 August.
  20. Zulkifli Yusop., Abdul Rahim N. and Baharuddin K. (2000) Stream chemistry of rainforest catchments on metamorphic rocks. Paper presented at XXI International Union of Forestry Research Organizations (IUFRO) World Congress, Kuala Lumpur, 7-12 August.
  21. Mohd Awang, Zulkifli Yusop, Leong C.P. Baharuddin Kasran (1999) Rainfall chemistry in Peninsular Malaysia and its potential impacts on soil and vegetation: a case study. Workshop on Ecological Impact Monitoring of Acid Deposition in East Asia, Beijing, Sept 1999.
  22. Zulkifli Yusop, Abdul Rahim N., and Baharuddin K (1998) Evapotranspiration loss from a second growth forest of Peninsular Malaysia. Paper presented at International Conference on Hydrology and Water Resources of Humid Tropics, Ipoh, Malaysia, 24-26th 1998.
  23. Zulkifli Yusop. and Baharuddin K (1997) Nutrient fluxes via litterfall and canopy leaching in a secondary tropical rainforest site. Paper presented at 2nd. International Conference on Environmental Chemistry and Geochemistry in the Tropics, Kuala Lumpur, 7-11 April 1997.
  24. Mohd Shahwahid H.O., Awang Noor A.G., Abdul Rahim N., Zulkifli Yusop. and  Razani U. (1996) The economics of forested catchment management. Paper presented at Workshop  Malaysia-UK Programme for the Conversation, Management and Development of Forest Resources. FRIM, Kepong, KL 21-24 October 1996.
  25. Mohd Shahwahid H.O., Awang Noor G., Abdul Rahim Nik, Zulkifli Yusop. and Shahrudin Ismail (1995) Economic benefits of watershed protection and trade-offs, Paper presented at Environmental Economics Research Seminar organised by the Environmental Economic Research  Programme for South East Asia (EEPSEA) at Singapore 24-26 May 1995.
  26. Zulkifli Yusop., Abdul Rahim N. and Baharuddin K. (1993). Selective logging in Peninsular Malaysia: Impacts on streamwater chemistry. Paper presented at the International Symposium on Forest Hydrology. Canberra, 22‑26 Nov. 1993.
  27. Zulkifli Yusop., Saifuddin S. and Baharuddin K. (1993) Subsoil compaction of logging road and recovered site in a logged-over forest. Paper presented at Soil Science Conference Malaysia 1993, Penang, 19-21 April 1993.
  28. Samori,T., Naguchi, S., Tani, M., Zulkifli Yusop. & Baharuddin K (1993) Hydrological characteristics in tropical rain forest in Malaysia- suspended sediment and water quality. Paper presented at 104th. Annual Meeting of Japanese Forestry Society. Morioka, Japan.
  29. Zulkifli Yusop. and Abdul Rahim N. (1991) Logging and forest conversion: can we minimize their impacts on water resources? Paper presented at ASEAN Seminar on Land‑Use Decisions and Policies: Will Tropical Forest Survive Their Impact?? AIFM, Penang 28‑30 Oct. 1991
  30. Zulkifli Yusop., Anhar S. and Baharuddin K. (1990) Postlogging effects on suspended solids and turbidity ‑ five years observation. Paper presented at Workshop on Watershed Management and Development. UPM, IHP and UNESCO. Kuala Lumpur, 19 ‑ 23 Feb. 1990.
  31. Zulkifli Yusop. (1989)  Effects  of  selective  logging methods  on dissolved  nutrient exports in Berembun Watershed, Peninsular Malaysia. Paper presented at the Regional Seminar on Tropical Forest Hydrology. FRIM, IHP and UNESCO. Kuala Lumpur, 4 ‑ 8 Sept. 1989.
  32. Abdul Rahim N. and Zulkifli Yusop. (1988) Statistical analysis of water quality data using computer softwares. Paper presented at the Training Course on Computer Application in Watershed Management. ASEAN‑US Watershed Project. Kuala Lumpur, 14 ‑ 19 Nov. 1988.