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Trend and variability of rainfall in two river basins in Sri Lanka: an analysis of meteorological data and farmers’ perceptions

Author

Listed:
  • L. Muthuwatta
  • H. P. T. W. Perera
  • N. Eriyagama
  • K. B. N. Upamali Surangika
  • W. W. Premachandra
Abstract
Selected rainfall characteristics derived by analyzing observed rainfall data in two Sri Lankan river basins (Malwathu Oya and Kalu Ganga) were compared with the perceptions of farmers. The rainfall characteristics used for this analysis are trends, onset and cessation dates, length of the growing period, number of rainy days, and length of the dry spell. Farmers’ perceptions of changes in those characteristics were collected through household surveys. The majority of farmers in both river basins failed to recognize the long-term upward trend in annual rainfall. They also failed to describe the adaptation measures they were currently practising.

Suggested Citation

  • L. Muthuwatta & H. P. T. W. Perera & N. Eriyagama & K. B. N. Upamali Surangika & W. W. Premachandra, 2017. "Trend and variability of rainfall in two river basins in Sri Lanka: an analysis of meteorological data and farmers’ perceptions," Water International, Taylor & Francis Journals, vol. 42(8), pages 981-999, November.
    • Handle: RePEc:taf:rwinxx:v:42:y:2017:i:8:p:981-999
    DOI: 10.1080/02508060.2017.1406784
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    Cited by:

    1. Sujith S. Ratnayake & Michael Reid & Nicolette Larder & Harsha K. Kadupitiya & Danny Hunter & Punchi B. Dharmasena & Lalit Kumar & Benjamin Kogo & Keminda Herath & Champika S. Kariyawasam, 2023. "Impact of Climate Change on Paddy Farming in the Village Tank Cascade Systems of Sri Lanka," Sustainability, MDPI, vol. 15(12), pages 1-30, June.
    2. Tao Wang & Jianzhong Yan & Xian Cheng & Yi Yu, 2020. "Irrigation Influencing Farmers’ Perceptions of Temperature and Precipitation: A Comparative Study of Two Regions of the Tibetan Plateau," Sustainability, MDPI, vol. 12(19), pages 1-16, October.
    3. Sujith S. Ratnayake & Michael Reid & Nicolette Larder & Danny Hunter & Md Kamrul Hasan & Punchi B. Dharmasena & Benjamin Kogo & Malalasiri Senavirathna & Champika S. Kariyawasam, 2024. "Climate and Land Use Change Pressures on Food Production in Social-Ecological Systems: Perceptions from Farmers in Village Tank Cascade Systems of Sri Lanka," Sustainability, MDPI, vol. 16(19), pages 1-23, October.

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