1. Sustainable Development Research Seminar (SDRS) Series
2023
Sustainable Crop
Intensification
Masoud Barati Kakolaki
2020 Batch
Amrita School for Sustainable Development
Date: 26th May 2023
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2. Sustainable Development Research Seminar (SDRS) Series
2023
Recap of SDRS 2022
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Interaction with farmer community
Sadivayal Villages
Climate
Science
Current Exposure
Probable Exposure
Current Adaptive
Capacity
Community-driven
strategies
Social
Science
Probability of consecutive wet and dry weeks
A) Kar Growing Season B) Thaladi Growing Season
Rice cultivation and water sustainability in peninsular India : Examining the challenges
of climate change through extreme rainfall events with the Markov chain approach
(Barati et al., 2023)
3. Sustainable Development Research Seminar (SDRS) Series
2023
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Location map of the Sadivayal Village, in the Tamil Nadu state of India
Study Area
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2023
Vulnerability status of rice cultivation
Exposure:
Rainfall variability, heavy rainfall,
inter-seasonal dry spells
Adaptive Capacity:
Farmers’ ability to switch to and
adopt an adaptive crop
calendar to climate change
Potential Impact:
Decrease in crop yield
Sensitivity:
Improper crop calendar and lack
of irrigation facility
Vulnerability
High
High
Low
High
5. Sustainable Development Research Seminar (SDRS) Series
2023
Methodologies
Daily Rainfall
data
Standard
Rainfall Analysis
Monthly rainfall
analysis
Seasonal rainfall
analysis
Weekly rainfall
analysis
6. Sustainable Development Research Seminar (SDRS) Series
2023
Methodologies
Daily Rainfall
data
Standard
Rainfall Analysis
Monthly rainfall
analysis
Seasonal rainfall
analysis
Weekly rainfall
analysis
Probability of
weekly rainfall
Occurrence
7. Sustainable Development Research Seminar (SDRS) Series
2023
Methodologies
Daily Rainfall
data
Standard
Rainfall Analysis
Monthly rainfall
analysis
Seasonal rainfall
analysis
Weekly rainfall
analysis
Probability of
weekly rainfall
Occurrence
Trend Analysis
Wet and dry spell analysis
Onset and withdrawal of monsoon
Weekly Rainfall Classification
8. Sustainable Development Research Seminar (SDRS) Series
2023
Methodologies
Daily Rainfall
data
Standard
Rainfall Analysis
Monthly rainfall
analysis
Seasonal rainfall
analysis
Weekly rainfall
analysis
Probability of
weekly rainfall
Occurrence
Trend Analysis
Irrigation
Planning
Wet and dry spell analysis
Onset and withdrawal of monsoon
Weekly Rainfall Classification
9. Sustainable Development Research Seminar (SDRS) Series
2023
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Results and Discussion
Average weekly rainfall distribution during major rice growing seasons in Sadivayal
10. Sustainable Development Research Seminar (SDRS) Series
2023
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Sadivayal rice cultivation calendar
SMW: Standard Meteorological Week, South-West Monsoon (SWM), North-East Monsoon (NEM)
8-Jun
Cont.…
11. Sustainable Development Research Seminar (SDRS) Series
2023
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Frequency of water stress occurrence in Kar season
Cont.…
Normal
Early
Late sowing
Kar
SMW
<5 Water stress 20 22 16 17 21 17 26 26 28 22 23 19 23 15 17 16 16 15 15 13
5-25 Avoid stress 7 10 16 13 10 16 8 10 8 12 12 12 12 14 12 16 11 13 10 7
25-50 Sufficient 11 4 5 7 5 3 4 3 3 3 4 4 3 8 6 1 5 5 5 5
>50 Excess 2 4 3 3 4 4 2 1 1 3 1 5 2 3 5 7 8 7 10 15
Classification
VS RES RIS
WR (mm) 20 21 22 23 30
VS RES RIS
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VS RES
37 38 39
31 32 33 34 35 36
25 26 27 28 29
12. Sustainable Development Research Seminar (SDRS) Series
2023
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Frequency of water stress occurrence in Thaladi season
Cont…
Normal
Early
Late sowing
Thaladi
SMW
<5 Water stress 15 15 13 15 4 12 2 8 7 16 19 22 25 28 31 33 36 37 36 38
5-25 Avoid stress 13 10 7 7 15 6 11 8 5 11 5 8 12 8 7 4 1 1 1 1
25-50 Sufficient 5 5 5 12 7 5 10 8 10 4 7 8 0 0 0 1 1 1 1 0
>50 Excess 7 10 15 5 13 16 16 15 17 8 8 1 2 3 1 1 1 0 1 0
RES RES
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RIS
WR (mm) 37 38 39 40 41
Classification
VS RES RIS
VS
VS RES
2 3 4
48 49 50 51 52 1
42 43 44 45 46
13. Sustainable Development Research Seminar (SDRS) Series
2023
Conclusion
Rainfall analysis in Sadivayal showed an uneven distribution of rainfall during the Kar
and Thaladi rice growing seasons. Therefore, rainfed rice cultivated in Sadivayal suffers
from the adverse effects of rainfall aberrations on rice crop growth.
Weekly rainfall classification showed that an adaptive strategy of early sowing was
proposed for the rainfed Thaladi rice. Namely, by shifting the sowing date to the 38th
SMW, the flowering stage is preserved from terminal water stress with a satisfying
rainfall contribution in earlier weeks.
According to the insufficient average seasonal rainfall during the Kar, and Thaladi rice-
growing seasons, the water demand for rice crops should be met by sustainable
regional measures like the Supplemental Irrigation technique.
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14. Sustainable Development Research Seminar (SDRS) Series
2023
THANK YOU
“Go out and serve the suffering. Learn to place
others in front of yourself.” – AMMA
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Acknowledgement
