AIMS Geosciences, 2017, 3(4): 561-575. doi: 10.3934/geosci.2017.4.561.

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Influence of Climate Factors on Rice Yields in Cambodia

1 Ministry of Environment, Phnom Penh, Cambodia
2 Graduate School for International Development and Cooperation, Hiroshima University, 1-5-1 Kagamiyama, Higashi-Hiroshima, 739-8529, Japan
3 Agricultural Genetics Institute, Hanoi, Vietnam

Temperature and precipitation have been known as the key determinant factors to affect rice production in climate change. In this study, the relationship between climate variables and rice yields during 1993–2012 in Cambodia was analyzed and evaluated. The Ordinary Least Squares analysis was applied to examine the relationship of three climate variables (TCV) including maximum temperature, minimum temperature and rainfall against seasonal rice yields. By this period, a remarkable increasing trend of annual temperature was observed whilst rainfall was not significantly changed. The TCV explains approximately 63% and 56% of the variability of rice yields in wet and dry seasons, respectively. It is found that in Cambodia, non-climate factors such as fertilizers, water, cultivars, and soil fertility cause 40% variation to rice yields, whereas the remaining 60% can be influenced by climate variability. The levels of temperature difference (LTD) between maximum and minimum temperatures of the wet season (WS) and dry season (DS) were 7.0 and 8.6 oC, respectively. The lower value of LTD may cause the reduction of rice in WS (2.2 tons/ha) as compared to that of DS (3.0 tons/ha). Rice yield has increased 50.5% and 33.8% in DS and WS, respectively, may due to the improvement of rice cultivation practices in Cambodia such as the better use of fertilizers, pest and weed control, and irrigation, and more effective rice cultivated protocol, as the increased trend of temperature may detrimentally affect rice yield. The breeding of heat and drought tolerance rice varieties and development of irrigation system are effective to reduce the negative influence from climate change to rice production in Cambodia.
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Keywords Cambodia; climate variables; rice yield; dry season; wet season; climate change

Citation: Dek Vimean Pheakdey, Tran Dang Xuan, Tran Dang Khanh. Influence of Climate Factors on Rice Yields in Cambodia. AIMS Geosciences, 2017, 3(4): 561-575. doi: 10.3934/geosci.2017.4.561


  • 1. Rosenzweig C, Casassa G, Karoly DJ (2007) Assessment of observed changes and responses in natural and managed systems. In: Rosenzweig C and Casassa G. Author, Climate Change 2007: Impacts, adaptation and vulnerability. Cambridge University Press: Cambridge, United Kingdom, 81-131.
  • 2. Molua EL (2002) Climate variability, vulnerability and effectiveness of farm-level adaptation options: The challenges and implications for food security in Southwestern Cameroon. Environ Dev Econ 7: 529-545.
  • 3. Peng S, Huang J, Sheehy JE, et al. (2004) Rice yields decline with higher night temperature from global warming. Pro Natl Acad Sci USA 101: 9971-9975.    
  • 4. Sarker MAR, Alam K, Gow J (2012) Exploring the relationship between climate change and rice yield in Bangladesh: An analysis of time series data. Agr Syst 112: 11-16.    
  • 5. Kotir JK (2011) Climate change and variability in Sub-Saharan Africa: a review of current and future trends and impacts on agriculture and food security. Environ Dev Sustain 13: 587-605.    
  • 6. Mertz O, Halsnaes K, Olesen J, et al. (2009) Adaptation to climate change in developing countries. Environ Manage 43: 743-752.    
  • 7. Lobell DB, Schlenker W, Costa-Roberts J (2011) Climate trends and global crop production since 1980. Sci 333: 616-620.    
  • 8. Schlenker W, Lobell DB (2010) Robust negative impacts of climate change on African agriculture. Environ Res Lett 5: 1-8.
  • 9. Tubiello FN, Rosenzweig C (2008) Developing climate change impact metrics for agriculture. Integr Assess 8: 165-184.
  • 10. Welch JR, Vincent J, Auffhammer M, et al. (2010) Rice yields in tropical/subtropical Asia exhibit large but opposing sensitivities to minimum and maximum temperatures. Proc Natl Acad Sci USA 107: 14562-14567.    
  • 11. Yusuf AA, Francisco HA (2009) Climate change vulnerability mapping for Southeast Asia. Economy and Environment Program for Southeast Asia (EEPSEA), Singapore.
  • 12. Thomas TS, Tin P, Ros B, et al. (2013) Cambodian agriculture: Adaptation to climate change impact. International Food Policy Research Institute (IFPRI).
  • 13. Somkhit B (2012) Simulation of climate change impact on lowland paddy rice production potential in Savannakhet province, Laos. (Doctorate degree of Engineering Sciences). University of Natural Resources and Life Sciences, Vienna.
  • 14. Parry M, Rosenzweig C, Iglesias A, et al. (1999) Climate change and world food security: A new assessment. Glob Environ Chang 9: 51-67.    
  • 15. Gregory PJ, Ingram JSI, Brklacish M (2005) Climate change and food security. Philos Trans R Soc B Biol Sci 360: 2139-2148.    
  • 16. McCarthy JJ, Canziani OF, Leary NA, et al. (2001) Climate change 2001: Impacts, adaptation, and vulnerability. Contribution of working group II to third assessment report of the Intergovernmental Panel on Climate Change, Int J Climatol 22: 1285-1286.
  • 17. USAID (2010) Kampot Investment Profile.
  • 18. Wang H, Velarde O, Bona S, et al. (2012) Patterns of varietal adoption and economics of rice production in Asia. Wang H, Pandey S, Velarde O, et al (eds). International Rice Res Institute.
  • 19. Parry ML, Carter TR, Konijn NT (1988) The impact of climatic variation on agriculture. Vol 2: Assessments of semi-arid region. JAS 113: 281-284.
  • 20. Lobell DB, Burke MB (2010) On the use of statistical models to predict crop yield responses to climate change. Agric For Meteorol 150: 1443-1452.    
  • 21. Hughes L (2000) Biological consequences of global warming: Is the signal already apparent? Trends Ecol Evol 15: 56-61.    
  • 22. Vouillamoz JM, Valois R, Lun S, et al. (2016) Can groundwater secure drinking-water supply and supplementary irrigation in new settlements of North-West Cambodia? Hydrogeol J 24: 195-209.    
  • 23. Pheav S, Seng V, Reyes R, et al. (2003) Characterization of the Soil at the Stung Chinit Irrigation and Rural Infrastructure Project (SCIRIP). A final report submitted to GRET-CEDAC Stung Chinit project, Kampong Thom, Cambodia.
  • 24. Meehl GA, Stocker TF, Collins WD, et al. (2007). Global Climate Projections. Solomon S, Qin D, Manning M, et al. (2007) (Eds). Cambridge University Press, Cambridge, UK. And New York NY.
  • 25. Hatfield JL, Prueger JH (2015). Temperature extremes: effects of plant growth and development. Weather. Clim Extremes 10: 4-10.    
  • 26. Krishnan P, Ramakrishnan B, Reddy KR, et al. (2011). High-temperature effects on rice growth, yield, and grain quality. In: Advances in Agronomy (Sparks DL, eds). Burlington: Academic Press, 111: 87-206.


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