Climate change impacts cropping patterns in Assam by:

The correct answer is: d) All of the above.

Climate change is impacting cropping patterns in Assam by shifting suitable zones, changing rainfall patterns, and increasing temperature stress.

• Shifting suitable zones: Climate change is causing the average temperature to rise, which is leading to changes in the distribution of rainfall and the length of the growing season. This is making it difficult for farmers to grow the same crops in the same areas as they have in the past.
• Changing rainfall patterns: Climate change is also causing changes in the pattern of rainfall. In some areas, rainfall is becoming more erratic, with longer periods of drought followed by heavy rains. This can make it difficult for farmers to plan their planting and harvesting schedules.
• Increasing temperature stress: Climate change is also causing the average temperature to rise, which is putting stress on crops. Higher temperatures can lead to decreased yields and increased susceptibility to pests and diseases.

The primary rice-growing season in Assam is the Kharif season, which runs from June to October. The Rabi season, which runs from November to March, is also a major rice-growing season, but it is not as important as the Kharif season. The Zaid season, which runs from April to May, is a minor rice-growing season.