Land use changes on the slopes of Mount Elgon and the implications for the occurrence of landslides

Mugagga, Frank; Kakembo, Vincent; Buyinza, Mukadasi

doi:10.1016/j.catena.2011.11.004

Cited by 150 publications

(128 citation statements)

References 41 publications

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“…The largest land use conversion in East Africa over the last 50 years has been the expansion of agriculture. Similar studies by Mugagga et al (2012) and Barasa and Kakembo, (2013), revealed progressive conversion of forests and woodlands to agriculture over the last forty years. The increase in regenerating/ restoration forests as found out in the present study could be attributed to the 1995 Uganda Wildlife Authority forest restoration programme , which enabled collaborative management and active participation of all stake holders in the management of Mt Elgon Forest.…”

Section: Extent Of Land Use Changesupporting

confidence: 49%

“…The mean annual rainfall ranges from 1500mm on the eastern and northern slopes to 2000mm in the southern and the western slopes. The mean maximum and minimum temperatures are 23 0 C and 15 0 C respectively (Mugagga et al, 2012).…”

Section: Study Areamentioning

confidence: 99%

“…Human destruction of forests especially in the tropical and subtropical mountain environments he become a concern and the associated consequences on soil and water quality, biodiversity, global climatic and livelihood systems (Turner et al, 1995;Laurence, 1999;Noss, 2001;Armenteras et al, 2003: Mugagga et al, 2012. Annual humid tropical forest cover losses are estimated at 5.8 ± 1.4 million hectares (Frédéric et al, 2002;Hansen et al, 2008) with corresponding global carbon emissions ranging between +0.5 to +3.0 GtC yr-1 (Houghton, 2003b;Frédéric et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Land Use on Carbon Stocks and Implications for Climate Variability on the Slopes of Mount Elgon, Eastern Uganda

Mugagga¹

2015

IJRD

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We investigated the impact of land use change on carbon stocks and its implications to climate variability in Mountain environments. Remotely sensed biophysical data was used to determine the extent of land use change over the last two decades. Land uses were stratified thus; forest under restoration, woodlots/plantations, agricultural land, regenerating forest and intact forest. Carbon in above and below ground biomass was measured using the allometric equations, whilst soil samples were analyzed for total carbon by the dry combustion method. The differences in carbon stocks in various land uses were analyzed using Analysis of variance (ANOVA). Top soil layers (0-10cm) were found to store more carbon than the deeper ones. Furthermore, intact forest stored more soil organic carbon (> 45t/ha) compared to other land uses with the least in land under agriculture (about 1.5 t/ha). The decimation of land uses with high carbon stocks was noted to reduce the potential of Mt. Elgon as a carbon sink. This therefore calls for the scaling out and up of forest restoration programmes in and

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Section: Extent Of Land Use Changesupporting

confidence: 49%

Section: Study Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Effect of Land Use on Carbon Stocks and Implications for Climate Variability on the Slopes of Mount Elgon, Eastern Uganda

Mugagga¹

2015

IJRD

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“…Although landslides occur almost in all countries in Africa, they have been mostly reported in Cameroon, Ivory Coast, Kenya, Uganda, Rwanda and Ethiopia [4,5]. The East African Highlands are highly vulnerable to landslides as areas such as Ruwenzori in Uganda, Elgon in Uganda/Kenya, Aberdare Ranges in Kenya and Bukavu in Democratic Republic of Congo have been reporting landslide events [5,6].…”

Section: Global Regional and Local Overview Of Landslidesmentioning

confidence: 99%

“…disturbance or change of drainage patterns, improper irrigation, excavation or grading on slopes, and removal of vegetation) are common pre-conditioning factors for initiation and reactivation of landslides [6], and have been associated with occurrence of landslides on slopes of Mt. Kilimanjaro [16,44].…”

Section: Controlling Factors For Landslide Occurrencementioning

confidence: 99%

Review of Spatial and Temporal Distribution of Landslides in Tanzania

Ja¹,

Kervyn²

2017

J Ecosyst Ecogr

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This paper intended to inventorize the occurrence of landslides in Tanzania in temporal and spatial terms. Specifically, the inventory focused on identifying areas in Tanzania which are prone to landslides, identifying the frequency of landslide occurrence in the country, identifying the underlying and triggering factors for landslides, the socio-economic impacts of landslides and assessing the people's perception of landslides in Tanzania. Identification and mapping of landslide was achieved through the use primary and secondary sources of information. Primary data was acquired through exploratory field visit to the 5 landslide scars in the north and south Pare Mountains in the northern highlands of Tanzania. Short discussion with local people in the areas was made to gain insights into their perception of landslides. Secondary data was acquired through the review of achieved sources. This review was made in respect of the landslides that were not covered by the aforementioned exploratory field visit. The EM-DAT was also used to provide information on the number of landslide events, fatalities and socio-economic impacts. Google Earth™ search and image interpretation were used to located and describe landslides in other regions of the country that were not covered by the aforementioned exploratory field study. A 90 m resolution Digital Elevation Model (DEM) from USGS for Tanzania was used to map the landslide scars identified through Google Earth search. Google Earth search and image interpretation were supported by secondary information from archived sources. The inventory noted that landslides in Tanzania have received relatively limited attention both in the literature and in government disaster management plans. With exception of studies conducted in Uluguru Mountain in 1970s, no formal landslide research has been made in recent years. Despite extensive web searches, no landslide inventory has been made in Tanzania. This may presumably be due to existing assumption that landslides in Tanzania have low frequency of occurrence and are localized compared to other disasters such as floods, epidemics and drought, whose occurrence affect many more people, drawing more community, government and media attention. This has thus, affected the way landslide events are reported and managed in the country. This assertion however, does not preclude the fact that one/few landslide events, depending on their magnitude, where they occur and nature of elements at risk, can affect significant number of people and vice versa. This inventory has also documented cultural perspectives on landslides. Care must be taken to incorporate appropriate indigenous knowledge and people's perception pertaining to landslides and other disasters as these are critical in designing and implementing culturallyinformed and low cost disaster management strategies. This may, in turn, obviate the need or reduce cost for early warning systems. Landslide information provided by some reviewed sources is limited in time and space. Most of the visi...

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Land use changes due to energy policy as a determining factor for morphological processes in fluvial systems in São Paulo State, Brazil

Lupinacci

Conceição

Simon

et al. 2017

Earth Surf Processes Landf

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The number of hydroelectric dams used for energy production and the cultivation of sugar cane crops for ethanol production have increased significantly in the southeastern region of Brazil. These land use/land cover changes (LULCC) associated with energy policy can affect landscape changes over a range of temporal and spatial scales. This article focuses on how human–landscape interactions have influenced geomorphological dynamics in the lower course of the Piracicaba River for two different scenarios that represent pre‐dam and post‐dam conditions in 1962 and 2007, respectively, and the expansion of sugar cane crops after 1975. This assessment was performed by mapping land use and geomorphological changes in the study area in the 1962 and 2007 scenarios, in addition to quantifying the sedimentation rates upstream from the Barra Bonita Reservoir using 210Pb. The main land uses identified for the 1962 scenario were pastures, meadows, annual crops and forests. However, the main land use change was the expansion of sugar cane cropland from 4 to 39%. In the 1962 scenario, the lower course of the Piracicaba River had a predominantly meandering pattern, and there were pronounced alluvial plains in the region. In the 2007 scenario, oxbow lakes were not mapped, and the river terraces were reduced in area due to construction of the Barra Bonita Reservoir. The changes in the sedimentation rates indicate an association between the construction of the Barra Bonita Reservoir and the expansion of sugar cane crops. It was therefore not possible to assess the specific influences of each anthropogenic change on the sedimentation processes, reinforcing that the human–landscape systems in São Paulo State associated with energy policy are complex. Copyright © 2017 John Wiley & Sons, Ltd.

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Land use changes on the slopes of Mount Elgon and the implications for the occurrence of landslides

Cited by 150 publications

References 41 publications

The Effect of Land Use on Carbon Stocks and Implications for Climate Variability on the Slopes of Mount Elgon, Eastern Uganda

The Effect of Land Use on Carbon Stocks and Implications for Climate Variability on the Slopes of Mount Elgon, Eastern Uganda

Review of Spatial and Temporal Distribution of Landslides in Tanzania

Land use changes due to energy policy as a determining factor for morphological processes in fluvial systems in São Paulo State, Brazil

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