DODOMA, Tanzania (PAMACC News) - Mention of the word El Niño sends shivers to several communities in Africa who live in lowland areas. However, these extreme rainfall phenomena are exactly what Dodoma desperately needs to sustain lives of the speedy growing population in Tanzania’s capital city.
A team of local and international scientists from Sokoine University of Agriculture (SUA) and University College London (UCL) in collaboration with the Ministry of Water and Irrigation including the WamiRuvu Basin Water Board have been studying the Makutapora well-field (the only source of water for Dodoma city) to understand how the groundwater responds to different climatic conditions and human consumption.
“Through our research, we are seeking to understand groundwater resources in Makutapora, the renewability, the sustainability and critically how people use this precious resource,” said Richard Taylor, a Professor of Hydrogeology at the UCL and the Principal Investigator for a project known as GroFutures.
And after a few years of intensive research, the scientists have discovered that the well-field found in an area mainly characterised by usually seasonal rivers, vegetation such as acacia shrubs, cactus trees, baobab among others that thrive in dryland areas can only be recharged during extreme floods that often destroy agricultural crops and even property.
Dodoma became Tanzania’s capital city in 1974, though the administrative offices remained in Dar Es Salaam. Given a fact that the entire Dodoma region is semi-arid with an average annual rainfall of 550 mm, the current population of about 500,000 residents entirely rely on groundwater from the Makutapora well-field, from which they pump out 61 million litres of water every day, according to government records.
However, since 2016 when President John Pombe Magufuli issued an executive order to relocate all government ministries and institutions as well as diplomatic offices from Dar Es Salaam to Dodoma, the city has become a beehive of activities as people and authorities rush to put in place the right infrastructure to accommodate the expected rise in population.
As a result, the demand for water is expected to rise amid the changing climatic conditions, putting much more pressure on the Makutapora well-field.
“Makutapora is quite a special site, given that it is the longest known groundwater level record in Sub Saharan Africa,” said Prof Taylor. “A study of the well-field over the past 60 years reveals that recharge sustaining the daily pumping of water for use in Dodoma city occurs episodically and depends on heavy seasonal rainfall associated with El Niño Southern Oscillation,” said the professor.
So far, according to the loggers (data registering equipments) installed in several monitoring wells within the Makurapora basin, the water level has been declining since 2016 when positive recharge was recorded following the 2015-16 El Niño rains. The scientists attribute the decline to heavy abstraction of the water for domestic use, but also, they are in the process of finding out if tough climatic conditions, changes and variations could be another factor.
“In the end of the year 2015, we installed river stage gauges to record the amount of water in the streams. Through this, we can monitor an hourly resolution of the river flow and how the water flow is linked to groundwater recharge,” said Dr David Seddon, a research scientist from UCL.
According to Lister Kongola, a retired hydrologist who worked for the government from 1977 to 2012, the demand for water in Dodoma has been rising over the years, from 20 million litres in the 1970s, to 30 million in the 80s and to the current 61 million litres per day at the moment.
“With most government offices now relocating from Dar Es Salaam to Dodoma, the establishment of the University of Dodoma and other institutions of higher learning, health institutions, and emergence of several hotels in the city, the demand is likely going to double in the coming few years.
With the Trans-African Highway from Cape Town to Cairo crossing through Dodoma, it means that the city could soon become an important tourism destination.
Already, President Magufuli has issued 62 land title deeds for construction of diplomatic missions and five others to accredited global organisations to facilitate the shift from Dar Es Salaam to Dodoma.
“The ongoing study is a stitch in time,” said Kongola. “Based on the results, the government will be in a position to make informed decisions on whether to keep abstracting water only from Makutapora or find supplementary sources of water to meet the ever growing demand,” he said.
One of the alternative options would be to construct dams and also explore alternative sites with reliable aquifers. The other option is to pump water all the way from Lake Victoria which is over 600 kilometres away from Dodoma.
The good news, however, is that seasons with El Niño kind of rainfall are predictable. “By anticipating these events, we can actually amplify them through some very minimal but strategic engineering intervention that might allow us to actually increase the amount of water replenishment in the well-field,” said Prof Taylor.
DODOMA, Tanzania (PAMACC News) - Mention of the word El Niño sends shivers to several communities in Africa who live in lowland areas. However, these extreme rainfall phenomena are exactly what Dodoma desperately needs to sustain lives of the speedy growing population in Tanzania’s capital city.
A team of local and international scientists from Sokoine University of Agriculture (SUA) and University College London (UCL) in collaboration with the Ministry of Water and Irrigation including the WamiRuvu Basin Water Board have been studying the Makutapora well-field (the only source of water for Dodoma city) to understand how the groundwater responds to different climatic conditions and human consumption.
“Through our research, we are seeking to understand groundwater resources in Makutapora, the renewability, the sustainability and critically how people use this precious resource,” said Richard Taylor, a Professor of Hydrogeology at the UCL and the Principal Investigator for a project known as GroFutures.
And after a few years of intensive research, the scientists have discovered that the well-field found in an area mainly characterised by usually seasonal rivers, vegetation such as acacia shrubs, cactus trees, baobab among others that thrive in dryland areas can only be recharged during extreme floods that often destroy agricultural crops and even property.
Dodoma became Tanzania’s capital city in 1974, though the administrative offices remained in Dar Es Salaam. Given a fact that the entire Dodoma region is semi-arid with an average annual rainfall of 550 mm, the current population of about 500,000 residents entirely rely on groundwater from the Makutapora well-field, from which they pump out 61 million litres of water every day, according to government records.
However, since 2016 when President John Pombe Magufuli issued an executive order to relocate all government ministries and institutions as well as diplomatic offices from Dar Es Salaam to Dodoma, the city has become a beehive of activities as people and authorities rush to put in place the right infrastructure to accommodate the expected rise in population.
As a result, the demand for water is expected to rise amid the changing climatic conditions, putting much more pressure on the Makutapora well-field.
“Makutapora is quite a special site, given that it is the longest known groundwater level record in Sub Saharan Africa,” said Prof Taylor. “A study of the well-field over the past 60 years reveals that recharge sustaining the daily pumping of water for use in Dodoma city occurs episodically and depends on heavy seasonal rainfall associated with El Niño Southern Oscillation,” said the professor.
So far, according to the loggers (data registering equipments) installed in several monitoring wells within the Makurapora basin, the water level has been declining since 2016 when positive recharge was recorded following the 2015-16 El Niño rains. The scientists attribute the decline to heavy abstraction of the water for domestic use, but also, they are in the process of finding out if tough climatic conditions, changes and variations could be another factor.
“In the end of the year 2015, we installed river stage gauges to record the amount of water in the streams. Through this, we can monitor an hourly resolution of the river flow and how the water flow is linked to groundwater recharge,” said Dr David Seddon, a research scientist from UCL.
According to Lister Kongola, a retired hydrologist who worked for the government from 1977 to 2012, the demand for water in Dodoma has been rising over the years, from 20 million litres in the 1970s, to 30 million in the 80s and to the current 61 million litres per day at the moment.
“With most government offices now relocating from Dar Es Salaam to Dodoma, the establishment of the University of Dodoma and other institutions of higher learning, health institutions, and emergence of several hotels in the city, the demand is likely going to double in the coming few years.
With the Trans-African Highway from Cape Town to Cairo crossing through Dodoma, it means that the city could soon become an important tourism destination.
Already, President Magufuli has issued 62 land title deeds for construction of diplomatic missions and five others to accredited global organisations to facilitate the shift from Dar Es Salaam to Dodoma.
“The ongoing study is a stitch in time,” said Kongola. “Based on the results, the government will be in a position to make informed decisions on whether to keep abstracting water only from Makutapora or find supplementary sources of water to meet the ever growing demand,” he said.
One of the alternative options would be to construct dams and also explore alternative sites with reliable aquifers. The other option is to pump water all the way from Lake Victoria which is over 600 kilometres away from Dodoma.
The good news, however, is that seasons with El Niño kind of rainfall are predictable. “By anticipating these events, we can actually amplify them through some very minimal but strategic engineering intervention that might allow us to actually increase the amount of water replenishment in the well-field,” said Prof Taylor.
NAIROBI, Kenya (PAMACC News) - A recent study by scientists from the Kenya Markets Trust (KMT) has shown that temperatures in all the drylands had risen in the past 50 years, with devastating impact particularly on cattle and some food crops.
These findings coincided with a new report by the UN Food and Agriculture Organisation (FAO) released on the same day showing that the world is off track to meet most food and agriculture-related Sustainable Development Goals (SDG), with more than half of local livestock breeds at risk of extinction.
According to the Kenyan study, which was commissioned by the Canada-based International Development Research Centre (IDRC) and the United Kingdom’s Department for International Development (DFID) — through the Pathways to Resilience in Semi-arid Economies (PRISE), changes in climatic conditions were driving pastoral communities into dire poverty.
“In all the 21 counties, we observed a 25.2 percent decline in cattle population between 1977 and 2016 on average, with Turkana County alone recording a devastating loss of about 60 percent in the same period, and this is directly linked to the increased heat,” said Dr Mohammed Yahya Said, the Lead Investigator and a consulting scientist at the KMT.
These findings correspond with the FAO global report which shows that on average, 60 percent of local livestock breeds are at risk of extinction in the 70 countries that had risk status information. “Specifically, across the world, out of 7155 local livestock breeds, 1940 are considered to be at risk of extinction. Examples include the Fogera cattle from Ethiopia or the Gembrong goat of Bali,” FAO reported.
It notes that this could be even higher as for two thirds of the local livestock breeds, especially in Africa, the Middle and Near East and Asia, there is no data on the animals' risk status.
According to Dr Said, changes in temperatures in Kenya are directly responsible for reduction of cattle population. “Our study found out that five counties have already surpassed the 1.5˚C mark, and such high temperatures are never good particularly for livestock,” he said.
The counties with the highest rise in temperatures include West Pokot and Elgeyo-Marakwet counties, which have recorded an increase of 1.91° C in the past 50 years, while Turkana and Baringo have both recorded (1.8° C) increase, Laikipia (1.59° C) and Narok (1.75° C) in the same period.
As a result of such occurrences, FAO reports that hunger is on the rise in many countries worldwide. “More than 820 million people are still hungry today,” says the report.
The number of hungry people in the world according to the UN has been on the rise for three years in a row, and is back to levels seen in 2010-2011. In parallel, the percentage of hungry people out of the total population has slightly increased, from 10.6 percent in 2015 to 10.8 percent in 2018.
Further, according to the UN, small-scale food producers - who represent the majority of all farmers in many developing countries - face disproportionate challenges in accessing inputs and services, and as a result, their incomes and productivity are systematically lower compared to larger food producers.
Even more badly, the UN report also warns of "no progress in conserving animal genetic resources and notes that ongoing efforts to preserve these resources appear inadequate". For example, less than one percent of local livestock breeds across the world have enough genetic material stored that would allow the breed to be reconstituted in case of extinction.
However, the conservation of plant genetic material was found to be faring on somewhat better.
At the end of 2018, global holdings of plant genetic materials conserved in gene banks in 99 countries and 17 regional and international centers totaled 5.3 million samples - a nearly three percent increase over the previous year. This is mainly due, however, to the transfer of existing materials to better, indicator-compliant storage facilities, rather than a reflection of newly added diversity collected from the field.
Efforts to secure crop diversity continue to be insufficient, caution the report, particularly for crop wild relatives, wild food plants and neglected and underutilized crop species.
However, according to KMT scientists, there is evidence that the Arabica coffee for example is getting extinct in Kenya and Ethiopia, while the yield from Robusta variety is going to more than double by the year 2050.
“These are very important findings for the country especially now that we are working towards the realization of the ‘Big Four’ development agenda,” said Mwangi Harry Gioche, the Director of Agriculture Research and Innovation at the Ministry of Agriculture, Livestock Fisheries and Irrigation during the dissemination of the findings of the Kenyan study.
This tenure transition has been driven by a number of factors including land tenure reforms, and market and demographic changes. Population pressure is also creating more consciousness around land in the ASALs and this is translating into emerging tensions around ownership and use. Options such as integrated land management can help take into account both pastoralists’ needs, as well as emerging forms of more intensified livestock investments by establishing land use zones that allow both free movements of large herds as well as livestock intensification under private land tenure. Land zoning can be facilitated through appropriate enabling policies and spatial planning processes.
Such integrated frameworks should provide security to pastoralists and enable them to negotiate for various financial, livelihood and technological opportunities in light of climatic shocks and changing tenure regimes.
NAIROBI, Kenya (PAMACC News) - A recent study by scientists from the Kenya Markets Trust (KMT) has shown that temperatures in all the drylands had risen in the past 50 years, with devastating impact particularly on cattle and some food crops.
These findings coincided with a new report by the UN Food and Agriculture Organisation (FAO) released on the same day showing that the world is off track to meet most food and agriculture-related Sustainable Development Goals (SDG), with more than half of local livestock breeds at risk of extinction.
According to the Kenyan study, which was commissioned by the Canada-based International Development Research Centre (IDRC) and the United Kingdom’s Department for International Development (DFID) — through the Pathways to Resilience in Semi-arid Economies (PRISE), changes in climatic conditions were driving pastoral communities into dire poverty.
“In all the 21 counties, we observed a 25.2 percent decline in cattle population between 1977 and 2016 on average, with Turkana County alone recording a devastating loss of about 60 percent in the same period, and this is directly linked to the increased heat,” said Dr Mohammed Yahya Said, the Lead Investigator and a consulting scientist at the KMT.
These findings correspond with the FAO global report which shows that on average, 60 percent of local livestock breeds are at risk of extinction in the 70 countries that had risk status information. “Specifically, across the world, out of 7155 local livestock breeds, 1940 are considered to be at risk of extinction. Examples include the Fogera cattle from Ethiopia or the Gembrong goat of Bali,” FAO reported.
It notes that this could be even higher as for two thirds of the local livestock breeds, especially in Africa, the Middle and Near East and Asia, there is no data on the animals' risk status.
According to Dr Said, changes in temperatures in Kenya are directly responsible for reduction of cattle population. “Our study found out that five counties have already surpassed the 1.5˚C mark, and such high temperatures are never good particularly for livestock,” he said.
The counties with the highest rise in temperatures include West Pokot and Elgeyo-Marakwet counties, which have recorded an increase of 1.91° C in the past 50 years, while Turkana and Baringo have both recorded (1.8° C) increase, Laikipia (1.59° C) and Narok (1.75° C) in the same period.
As a result of such occurrences, FAO reports that hunger is on the rise in many countries worldwide. “More than 820 million people are still hungry today,” says the report.
The number of hungry people in the world according to the UN has been on the rise for three years in a row, and is back to levels seen in 2010-2011. In parallel, the percentage of hungry people out of the total population has slightly increased, from 10.6 percent in 2015 to 10.8 percent in 2018.
Further, according to the UN, small-scale food producers - who represent the majority of all farmers in many developing countries - face disproportionate challenges in accessing inputs and services, and as a result, their incomes and productivity are systematically lower compared to larger food producers.
Even more badly, the UN report also warns of "no progress in conserving animal genetic resources and notes that ongoing efforts to preserve these resources appear inadequate". For example, less than one percent of local livestock breeds across the world have enough genetic material stored that would allow the breed to be reconstituted in case of extinction.
However, the conservation of plant genetic material was found to be faring on somewhat better.
At the end of 2018, global holdings of plant genetic materials conserved in gene banks in 99 countries and 17 regional and international centers totaled 5.3 million samples - a nearly three percent increase over the previous year. This is mainly due, however, to the transfer of existing materials to better, indicator-compliant storage facilities, rather than a reflection of newly added diversity collected from the field.
Efforts to secure crop diversity continue to be insufficient, caution the report, particularly for crop wild relatives, wild food plants and neglected and underutilized crop species.
However, according to KMT scientists, there is evidence that the Arabica coffee for example is getting extinct in Kenya and Ethiopia, while the yield from Robusta variety is going to more than double by the year 2050.
“These are very important findings for the country especially now that we are working towards the realization of the ‘Big Four’ development agenda,” said Mwangi Harry Gioche, the Director of Agriculture Research and Innovation at the Ministry of Agriculture, Livestock Fisheries and Irrigation during the dissemination of the findings of the Kenyan study.
This tenure transition has been driven by a number of factors including land tenure reforms, and market and demographic changes. Population pressure is also creating more consciousness around land in the ASALs and this is translating into emerging tensions around ownership and use. Options such as integrated land management can help take into account both pastoralists’ needs, as well as emerging forms of more intensified livestock investments by establishing land use zones that allow both free movements of large herds as well as livestock intensification under private land tenure. Land zoning can be facilitated through appropriate enabling policies and spatial planning processes.
Such integrated frameworks should provide security to pastoralists and enable them to negotiate for various financial, livelihood and technological opportunities in light of climatic shocks and changing tenure regimes.