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Lungmuana,

Spatial Variability in Temporal Trends of Precipitation and its Impact on the Agricultural Scenario of Mizoram

Abstract Views :220 | PDF Views:117

Authors

S. Saha ¹, D. Chakraborty ², B. U. Choudhury ², S. B. Singh ¹, N. Chinza ³, C. Lalzarliana ⁴, S. K. Dutta ¹, S. Chowdhury ¹, T. Boopathi ¹, Lungmuana ¹, A. R. Singh ¹, S. V. Ngachan ²

Affiliations
1 ICAR Research Complex for NEH Region, Mizoram Centre, Kolasib 796 081, IN
2 ICAR Research Complex for NEH Region, Umiam 796 103, IN
3 Directorate of Economics and Statistics, and Government of Mizoram, 796 001, IN
4 Directorate of Crop Husbandry, Government of Mizoram, 796 001, IN

Source

Current Science, Vol 109, No 12 (2015), Pagination: 2278-2282

Abstract

Long-term monthly rainfall observations (1986-2014) were analysed for 12 rain-gauge stations installed at variable altitudes of Mizoram. Our objective was to assess the temporal change in the standardized precipitation index (SPI) values at different timescales using Mann-Kendall trend tests. Significant reductions in post-monsoon and winter rainfall were recorded for most of the sites. Increasing dryness during the winter months may intensify the acute water shortage in Mizoram. Our results emphasize the altitudinal insensitivity of mean monthly rainfall trend and prove the urgent need for adopting suitable water management practices to cope with the water scarcity problem to increase the resiliency of rabi agriculture in Mizoram in near future.

Keywords

Agriculture, Rainfall Pattern, Standardized Precipitation Index, Spatial Variability.

Full Text

References

Das, A., Ghosh, P. K., Choudhury, B. U., Patel, D. P., Munda, G. C., Ngachan, S. V. and Chowdhury, P., Climate change in northeast India: recent facts and events – worry for agricultural management. ISPRS Archives XXXVIII-8/W3 Workshop Proceedings: Impact of Climate Change on Agriculture, 2009, pp. 32–37.

Ravindranath, N. H. et al., Climate change vulnerability profiles for North East India. Curr. Sci., 2011, 101(3), 384–394.

Jhajharia, D., Shrivastava, S. K., Sarkar, D. and Sarkar, S., Temporal characteristics of pan evaporation trends under the humid conditions of northeast India. Agric. For. Meteorol., 2009, 149, 763–770.

Jain, S. K., Kumar, V. and Saharia, M., Analysis of rainfall and temperature trends in northeast India. Int. J. Climatol., 2013, 33(4), 968–978.

Saikia, U. S. et al., Shift in monsoon rainfall pattern in the North Eastern region of India post 1991. J. Agrometeorol., 2013, 15(2), 162–164.

WMO, Standardized Precipitation Index User Guide. (eds Svoboda, M., Hayes M. and Wood, D.) WMO-No. 1090, World Meteorological Organization, Geneva, Switzerland, 2012, pp. 8–24.

McKee, T. B., Doesken, N. J. and Kleist, J., The relationship of drought frequency and duration to time scales. In Proceedings of the IX Conference on Applied Climatology. American Meteorological Society, Boston, MA, 1993, pp. 179–184.

Naresh Kumar, M., Murthy, C. S., Sesha Sai, M. V. R. and Roy, P. S., On the use of Standardized Precipitation Index (SPI) for drought intensity assessment. Meteorol. Appl., 2009, 16, 381–389.

Jha, S., Sehgal, V. K., Raghava, R. M. and Sinha, M., Trend of standardized precipitation index during Indian summer monsoon season in agroclimatic zones of India. Earth Syst. Dyn. Discuss., 2013, 4, 429–449.

Multi COB-Bearing Popcorn (Puakzo) Maize:A Unique Landrace of Mizoram, North East, India

Abstract Views :373 | PDF Views:82

Authors

A. Ratankumar Singh ¹, S. B. Singh ², S. K. Dutta ³, T. Boopathi ¹, Lungmuana ⁴, S. Saha ⁴, M. Thoithoi Devi ⁴, N. Hemanta Singh ¹

Affiliations
1 Division of Crop Protection, ICAR-Research Complex for NEH Region, Mizoram Centre, Kolasib 796 081, IN
2 Division of Social Science, ICAR-Research Complex for NEH Region, Mizoram Centre, Kolasib 796 081, IN
3 Division of Horticulture, ICAR-Research Complex for NEH Region, Mizoram Centre, Kolasib 796 081, IN
4 Division of Natural Resource Management, ICAR-Research Complex for NEH Region, Mizoram Centre, Kolasib 796 081, IN

Source

Current Science, Vol 110, No 8 (2016), Pagination: 1392-1393

Abstract

Mizoram is a mountainous (Lushai hill range) state with closely spaced intermountain valleys, demographically dominated by indigenous tribes (Mizo) constituting 94.4% of the total population. These tribal populations ensure the conservation of plant genetic resources for the future, for the food and nutritional security of an increasing population. Since 1976, in the northeastern hill region intensive collections of maize landraces were made by ICAR-NBPGR, New Delhi and diversity of landraces maize from this region comprised 36% of the total collection from whole India, which was the highest number of accession among other regions.

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