Spatio-temporal Variability of Reference Evapotranspiration and Trend Analyze of Crop Water Requirement

Ronald Mayengbam *

Department of Environmental Sciences and NRM, College of Forestry, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, 211007, India.

Shraddha Rawat

Department of Environmental Sciences and NRM, College of Forestry, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, 211007, India.

*Author to whom correspondence should be addressed.


Abstract

The study was aimed to analyse the trend of Reference Evapotranspiration (ETo) for estimation of Crop Water Requirement (CWR) for Rice (Oryza sativum) cultivation in Manipur from 2011-2021 in 16 districts (Bisnupur, Churachandpur, Jiribam, Imphal East, Kamjong, Senapati, Imphal West, Tengnoupal, Ukhrul, Thoubal, Noney, Pherzwal, Chandel, Kakching, Tamenglong and Kangpokpi) ETo and CWR was estimated using CROPWAT. Spatial trends of climate variables were analysed using Mann– Kendall test and Sen’s slope estimator.

Keywords: Crop water requirement, cropwat, rice, reference evapotranspiration, rice cultivation


How to Cite

Mayengbam , R., & Rawat , S. (2024). Spatio-temporal Variability of Reference Evapotranspiration and Trend Analyze of Crop Water Requirement. International Journal of Environment and Climate Change, 14(2), 382–391. https://doi.org/10.9734/ijecc/2024/v14i23953

Downloads

Download data is not yet available.

References

Gautam U, Nema AK, Jaiswal RK. Estimation of Crop Water Requirement (CWR) of major vegetable crops of selected agro-climatic zones of Madhya Pradesh, India. Int. J. Curr. Microbiol. App. Sci. 2019;8(10):895-904.

Kumari M, Singh OP, Meena DC. Crop water requirement, water productivity and comparative advantage of crop production in different regions of Uttar Pradesh, India. International Journal of Current Microbiology and Applied Sciences. 2017;6(7):2043-2052.

Hussain S, Mubeen M, Nasim W, Fahad S, Ali M, Ehsan MA, Raza A. Investigation of irrigation water requirement and evapotranspiration for water resource management in southern punjab, Pakistan. Sustainability. 2023;15(3):1768.

Allen RG, Pereira LS, Raes D, Smith M. Crop evapotranspiration guidelines for computing crop water requirements. Irrig. Drain. Food and Agriculture Organization of the United Nations (FAO), Rome, Italy. 1998;56.

Ndayisaba F, Guo H. Isabwe A, Bao A, Nahayo L, Khan G, Kayiranga A, Karamage, FM Nyesheja E. Inter-annual vegetation changes in response to climate variability in rwanda. Journal of Environmental Protection. 2017; 8(4).

Tadesse M. Spatial and temporal variability analysis and mapping of reference evapotranspiration for jimma zone, Southwestern Ethiopia. International Journal of Natural Resource Ecology and Management. 2021;6(3):108-115.

Jhajharia D, Singh PV. Trends in temperature, diurnal temperature range and sunshine duration in Northeast India. International Journal of Climatology. 2011;31(9):1353-1367.

Lokhande JN, Kale MU, Wadatkar SB. Trend of crop water requirement at Akola (Maharashtra), India. Journal of Applied and Natural Science. 2017;9.1: 441-444.