Modeling The Climate Change Impact Of Rice Yield Towards Climate Resilient Future In Sri Lanka | 76605
ISSN: 2157-7617

Journal of Earth Science & Climatic Change
Open Access

Like us on:

Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)
Recommended Conferences
Google scholar citation report
Citations : 2558

Journal of Earth Science & Climatic Change received 2558 citations as per google scholar report

Journal of Earth Science & Climatic Change peer review process verified at publons
Indexed In
  • CAS Source Index (CASSI)
  • Index Copernicus
  • Google Scholar
  • Sherpa Romeo
  • Online Access to Research in the Environment (OARE)
  • Open J Gate
  • Genamics JournalSeek
  • JournalTOCs
  • Ulrich's Periodicals Directory
  • Access to Global Online Research in Agriculture (AGORA)
  • Centre for Agriculture and Biosciences International (CABI)
  • RefSeek
  • Hamdard University
  • OCLC- WorldCat
  • Proquest Summons
  • SWB online catalog
  • Publons
  • Euro Pub
Share This Page

Modeling the climate change impact of rice yield towards climate resilient future in Sri Lanka

3rd World Congress on Climate Change and Global Warming

Sarath Premalal Nissanka, A S Karunaratn, W M W Weerakoon, B V R Punyawardena, D Wallach, Sonali McDermid and Alex Ruane

University of Peradeniya, Sri Lanka Sabaragamuwa University, Sri Lanka Field Crops Research and Development Institute, Sri Lanka Natural Resources Managements Centre, Sri Lanka INRA, France NASA GISS, USA

ScientificTracks Abstracts: J Earth Sci Clim Change

DOI: 10.4172/2157-7617-C1-033

Statement of the Problem: The climate projections for Sri Lanka indicate a further warming trend and rainfall variability to become more pronounced in the future. Implications of climate change will be more severe on the rice farming since it requires more water and cultivating areas already exposed to upper limit of maximum temperature. Therefore, this study was initiated to quantitatively assess the impact of climate change on productivity of rice varieties by means of crop-climate modeling and to identify adaptation measures. Methodology & Theoretical Orientation: A leading representative rice farming district (Kurunegala) was used. Yield performances of commonly growing rice cultivars (Bg-300, Bg-357, Bg-358, At-308) were assessed using systematically calibrated DSSAT version 4.5 model for baseline (1980-2010), downscaled 20 Global Climate Models (GCMs, CMIP5-RCP8.5) for mid-century (2040-2069) and for climate sensitivities (AgMIP-C3MP) across three locations of Rajangane, Nikawaratiya and Btalagoda in the district. Randomly selected 104 farmer survey data collected for the two growing seasons (major [OctoberFebruary] and minor [April-September]) was used for the simulation. Findings: Cultivation seasons of minor and major showed diverse yield performances with diverse sensitivities to climate. Overall, major cultivation season reported that comparatively lower reduction in rice yields compared to minor season for the actually observed climate over baseline period. According to 20 GCMs of CIMP5- RCP 8.5 climate predictions for the study sites showed the yield drop of up to 16% in major season and it was up to 30% during minor season. Out of three sites Rjangane reported the lowest reduction (10%) in major season compared to Nikaweratriya (19%) and Batalagoda (18%). In Contrast, Batalagoda showed the lowest drop (24%) relatively to Rajnagane (30%) and Nikaweratiya (33%) in minor season. Conclusion: According to C3MP results two rice cultivar (Bg 300 and Bg 357) reported diverse yield performances with diverse sensitivities to climate for Batalagoda.

Sarath Premalal Nissanka is a Professor in Crop Science at the Department of Crop Science, Faculty of Agriculture, University of Peradeniya. He has graduated with a PhD in Agronomy from the University of Guelph, Canada. He has his expertise on agronomy, crop physiology and climate change and its impacts on agriculture and forest ecosystems.

Elektronik Sigara
wooden toys