post-Adaptation vulnerability of cereals to rainfall and temperature variability in the federal capital territory of Nigeria

Abstract

This study assessed the vulnerability of cereals yield to climate change using an integrated and multi-scale quantitative approach. The objectives of this study include determining the level of climate variability, assessment of cereals yield sensitivity index, determining climate exposure index, determining adaptive capacity of farmers, assessment of the post adaptation vulnerability of cereals yield to climate change. Socioeconomic data were obtained through administration of questionnaires. Thirty years data of temperature and rainfall as well as fifteen years data of annual cereals yield were used. Mean and standard deviation, standardized coefficient of skewness (Z 1) and kurtosis (Z 2), simple linear regression and time series statistics analysis were used in this study for the analysis of data. Finding depicts that the exposure index of rainfall is low but high for temperature. Cereals sensitivity index/degree of crop yield failure is more from 2000-2010 and significant difference was observed in sensitivity index for all the cereals. Adaptive capacity of farmers to climate change is high in Bwari and AMAC but low in Gwagwalada, Kuje, Abaji and Kwali. Post adaptation vulnerability of maize, rice and millet yield to rainfall and temperature is low in AMAC and Bwari but high in Gwagwalada, Kwali, Abaji and Kuje. Post adaptation vulnerability of sorghum in relation to rainfall is low in all the area councils in the FCT except Abaji. In relation to temperature, vulnerability of sorghum is high in Abaji and Kuje but low in AMAC, Gwagwalada, Kwali and Bwari. It was recommended that there is need to place climate change within the top priority of developmental context, and provision and infrastructure as well as reliable agricultural extension service.

Assessment of Urban Generated Climate Anomaly in Okene Town, Okene Local Government Area of Kogi State, Nigeria

“…It is obvious that temperature in the study area has been in an increase. The findings of this study affirm that observed by Hassan and Ishaya (2010); Ishaya and Hassan (2013); Adakayi and Ishaya (2016) in their assessment of annual temperature in some parts of Northern Nigeria, which they found out that temperature in recent been increasing steadily. This is likely due to increase in urbanization and anthropogenic activities as a result of population increase in Okene town.…”

Assessment of Croplands’ Exposure to Climate Variability in the Federal Capital Territory (FCT), Abuja, Nigeria

“…The method applied by Ishaya et al [23] and Anandhi et a. [33] in calculating exposure index was adopted in this research for the determination of Croplands exposure index to climate variability in FCT.…”

“…Gbetubo and Hassan (2005) [24], effect of climate change on agricultural productivity in Federal Capital Territory using temperature, rainfall and crops data (Aondoakaa, 2012), vulnerability of annual cereals yield to rainfall and temperature variability in the Federal Capital Territory of Nigeria [24] . Despite the wide coverage of the study on vulnerability in the FCT of Nigeria over the years, it was observed that no emphasis has been placed on assessing the exposure of croplands to climate variability in the Federal Capital Territory (FCT) Using Geo-Informatics Technique.…”

“…This drops to about 125 hours monthly average during the raining season. The maximum temperature during the dry season occurs in the month of March and ranges between 37 C in the south-west to about 30 C in the north-east [24].…”

“…It therefore shares some of the characteristics of both the forest and savannah (grassland) zones and has the potentials to produce both forest root crops and tubers such as yams and cassava, as well as savannah crops such as grains and cereals. The high agricultural potential in the FCT is exemplified not only by the current level of food crop production but also by the great variety of crops which can be sustained, including, as it does, such crops as roots and tubers (yam), legumes (groundnut and cowpea), grains (maize, sorghum and rice), seeds and nuts (melon seeds and benniseed), animal products (goats, cattle, sheep), fruits and vegetables [24].…”