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Identifying Climatic Variables with Rice Yield Relationship and Land Cover Change Detection at Sylhet Region

  • Gazi Tamiz Uddin
  • Md. Altaf Hossain
  • Fahmida Ishaque

Asian Journal of Geographical Research, Page 1-12
DOI: 10.9734/ajgr/2019/v2i330088
Published: 31 July 2019

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Abstract

The study is conducted to determine the correlation between climatic parameters and rice yield. The present study is also undertaken to analyze the land cover change in Sylhet district between 2013 and 2018 using LANDSAT-8 images. Local climate and rice yield data are collected from BMD (Bangladesh Meteorological Department) and BRRI (Bangladesh Rice Research Institute) and BBS (Bangladesh Bureau of Statistics). ArcGIS 10.5 and SPSS software are used to show the vegetation condition and correlation coefficient between rice yield and climatic variables respectively. It is revealed from the result that rainfall is negatively correlated with Aman and Boro (local and HYV) rice whereas temperature and relative humidity showed a positive correlation with local Aman and Boro rice. On the other hand, relative humidity showed a strong linear relationship with HYV Boro rice. Finally, both temperature and relative humidity have substantial effects on yields in the Boro rice. Furthermore, vegetation condition is observed through NDVI and found the moderate-high vegetation in 2013. After that NDVI value is fluctuating which evidently signifies the rapid vegetation cover change due to a flash flood, flood and other climate changing aspects. Additionally, Forested and high land vegetation’s are endangered rapidly. Some adaptation strategies should be followed to minimize the effects of natural calamities for improving better vegetation condition.

Keywords:
  • Climatic parameters
  • rice yield
  • Landsat-8 satellite images
  • ArcGIS 10.5
  • NDVI.
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How to Cite

Uddin, G. T., Hossain, M. A., & Ishaque, F. (2019). Identifying Climatic Variables with Rice Yield Relationship and Land Cover Change Detection at Sylhet Region. Asian Journal of Geographical Research, 2(3), 1–12. https://doi.org/10.9734/ajgr/2019/v2i330088
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