Recent Precipitation Trends in Six Districts of the Ken River Basin of Bundelkhand Region, India
Manish Dwivedi
Department of Soil and Water Conservation Engineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, India.
Alok Kumar Mishra
Department of Soil and Water Conservation Engineering, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, India.
Rajendra Prasad Pandey
Environmental Hydrology Division, National Institute of Hydrology, Roorkee, Uttarakhand, India.
Bijay Kumar Panday
Uttarakhand Jal Jeevan Mission, Dehradun, Uttarakhand, India.
Shakti Suryavanshi *
Environmental Hydrology Division, National Institute of Hydrology, Roorkee, Uttarakhand, India.
*Author to whom correspondence should be addressed.
Abstract
The future development and sustainable management of water resources will be greatly influenced by the trend analysis of precipitation. This paper focuses on the analysis of rainfall trends in the Bundelkhand region, particularly in six districts covering the Ken basin. Mann-Kendall test was employed to identify potential trends, and the Sen’s slope estimator was utilized to quantify the magnitude of change during 1990 to 2020. Given that a significant portion of rainfall occurs during the southwest monsoon season, the study included both seasonal (monsoon) and annual analyses. The findings indicated a decreasing trend in precipitation for both the monsoon season and the annual scale, although many districts exhibited insignificant trends. The outcomes of this study offer valuable insights for agriculture, related sectors, and contribute to the food and energy security considerations for the six districts in the Bundelkhand region and regions with similar physiography.
Keywords: Trend analysis, Mann-Kendall test, rainfall