Vol. 11, Special Issue 9 (2022)

Author(s):
Arvind Swami, Deepika Unjan and Sheetal Chhaya

Abstract:
In the detrended yield during crop growing period rainfall (June –October) and detrend yield. It was found 9 districts of Chhattisgarh (Bemetara, Dantewada, Durg, Gariyaband, Jahangir Champa, Kondagaon, Korba, Koriya and Rajnandgaon) showed significant level and their out of 9 districts we were found 4 districts (Dantewada, Janjgir Champa, Korba and Koriya) of Chhattisgarh showed highly significant increasing trend at 1% level. Remaining 5 districts (Bemetara, Durg, Gariyaband, Kondagaon and Rajnandgaon) also increasing trend but significant at 5% level. Rest of 18 districts was showed increasing trend but non-significant during the study period (2011-2020). The ranges of annual PCI values were found that 20.1 to 29.3%. The maximum value was 29.3% found in Surajpur district, the minimum annual PCI was calculated that 20.1% in Jagdalpur district. In the result shows that of entire state of annual PCI value was 25.8%. It depicts (rainfall distribution) and in addition, the PCI distribution is not uniform over the entire study areas in annual basis. All districts was found that >20% of PCI values that considered in strong category irregularity of precipitation distribution. In seasonal PCI values of range found from 8.4-11.2%, the maximum SPCI value found that 11.2% in Surajpur district. While 8.4% in Bemetara district of minimum PCI value The average SPCI value in state of Chhattisgarh was found 10.3% this value depicted rainfall of Chhattisgarh according to SPCI categorization it comes under moderate precipitation districts. The maximum% contribution based on seasonal rainfall PCI value 47.6% in Jagdalpur, minimum% contribution 31.0% in Bemetara. Average percentage contribution SPCI of rainfall was 39.8% of the Chhattisgarh state.