Agricultural drought analysis of Chapai Nawabganj district in Bangladesh
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2012, Vol 2, Issue 9
Abstract
The occurrence of agricultural drought is associated with seasonal rainfall variability and can be reflected by seasonal soil moisture deficits that significantly affect crop production. The stochastic behaviors of the largest rainfall amounts were predicted using a first order Markov model. The analysis was carried out using mean, variance, simple and conditional probabilities of dry and wet days. An analysis of variance (ANOVA) was carried out on the rainfall data of some studied areas established and it was found that the annual and seasonal rainfall variability between the stations were insignificant. The daily rainfall data was used to represent the rainfall features of the Chapai Nawabganj district in this study. The monthly rainfall analysis of the different rainy seasons showed high variability. There was also significant monthly variability in rainy days. The analysis of rainfall found that approximately 75% rainfall amount occurred in the months June to September. The seasonal probabilities of occurrencr of rainfall amount were derived from the cumulative distribution function of rainfall amount. During the Kharif season, there were the highest rainfall amounts when compared with other seasons.
Authors and Affiliations
M. A. B. Barkotulla
Keywords
Related Articles
- EP ID EP37272
- DOI -
- Views 239
- Downloads 0
Biodiversity and seasonal dynamics of the cladoceran community in the wetlands of the Gharb and Loukkos plains in Morocco
The aim of this study was to describe the composition and structure of cladocerans of littoral areas with and without macrophytes from the wetlands in the Gharb and Loukkos plains (Morocco). Samples were taken between...
Effects of salinity on the DNA methylation pattern in barley shoots
Salinity is a crucial factor which inhibits crop production worldwide. Recent pieces of evidence reveal that epigenetic mechanisms modulate the gene expression in plants undergoing environmental stresses. Obviously, when...
Mapping and analyzing the risk of frost and chilling damage on horticultural crops (Study case: taftan border area, southeast of Iran)
Frosts have obvious effects on the energy, transport, and agriculture, while their greatest impact is on agriculture. Since chilling and frost cause’s lots of damage to crops in Taftan area, it is essential to examine t...
Microorganism’s application strategy for bio-phytoremediation of heavy metal: A review
Phytoremediation is a group of technologies that use plants to reduce, remove, de- grade, or immobilize environmental toxins, primarily those of anthropogenic origin, with the aim of restoring area sites to a condition...
Drought stress effect on morphological and physiological characteristics of different varieties of annual verbena (Verbena hybrida)
Water scarcity is emerging as a problematic issue day by day for plant growth and development. Regarding this issue use of drought resistant plant cultivars is one of the strategies to cope water deficit conditions. Drou...