Past and future land use/land cover changes from multi-temporal Landsat imagery in Mpologoma catchment, eastern Uganda

Bunyangha, Jackson; Mwanjalolo, Majaliwa; Muthumbi, Agnes; Gichuki, Nathan; Egeru, Anthony

doi:10.1016/j.ejrs.2021.02.003

Cited by 29 publications

(44 citation statements)

References 59 publications

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“…All the three sites (COM, SHD, and Uncul) were similar by being wetland areas located close to each other within a 10 km radius and had been under the particular land use/cover type and climatic conditions for at least 30 years [42].…”

Section: Study Sitesmentioning

confidence: 99%

Soil Macroinvertebrate Response to Paddy Rice Farming Pathways in Mpologoma Catchment, Uganda

et al. 2022

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Agricultural practices play a major role in influencing soil fauna abundance and diversity. Interest in these practices has increased owing to the growing need for sustainable agricultural systems in this era of increasing agricultural intensification. In this study, two paddy rice farming pathways (smallholder and large-scale commercial) and an adjacent natural wetland in Mpologoma catchment were studied to determine the response of soil macroinvertebrates to paddy rice farming pathways. Eighteen macroinvertebrate taxa were observed, some of which were not the usual soil taxa (Hirudinea, Decapoda, Ephemeroptera, Trichoptera, and Odonata). SIMPER analysis showed that Oligochaeta, Gastropoda, and Coleoptera were the major taxa responsible for dissimilarity among sites. Macroinvertebrate richness and diversity also varied among sites. Some taxa showed habitat exclusivity: Diptera, Odonata, and Trichoptera were exclusive to both rice paddies; Decapoda, Chilopoda, Diplopoda, and Blattodea to natural wetland; Diplura and Ephemeroptera were exclusive to large-scale commercial paddies. NMDS ordination showed that macroinvertebrate distribution among sites was strongly correlated with soil pH and calcium and moderately correlated with phosphorus. These results indicate that wetland conversion to rice paddies could affect macroinvertebrate richness and diversity and underscore the importance of soil environment in influencing the macroinvertebrate community in rice paddies.

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Section: Study Sitesmentioning

confidence: 99%

Soil Macroinvertebrate Response to Paddy Rice Farming Pathways in Mpologoma Catchment, Uganda

et al. 2022

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“…In this study, pre-processing of the images like atmospheric and geometric corrections, suitable band selection, sub-setting, layer stacking and image enhancements (such as histogram equalization and focal analysis) were applied before performing the classification of the remote sensing data [6,16,31,47]. Atmospheric correction of the top of atmosphere (TOA) reflectance to surface reflectance removes atmospheric interference and it is required to implement the LULC changes detection [1,6,35]. Therefore, to obtain surface reflectance data, Landsat images were atmospherically corrected using FLASH algorithm in the ENVI software tools.…”

Section: Data Processing and Analysismentioning

confidence: 99%

“…Recently, geographical information systems (GIS) and remote sensing have been extensively used for LULC mapping and change detection across the world [6,16,[33][34][35]. Moreover, advances in remote sensing such as the use of digital image processing algorithms have increased the use of satellite imageries such as Landsat data in studies concerned with LULC changes across multiple spatial and temporal scales [35,36]. In this regard, several image classification algorithms have been developed and used for mapping LULC changes at a range of spatial scales [37].…”

Section: Introductionmentioning

confidence: 99%

Analysing land use/land cover changes and its dynamics using remote sensing and GIS in Gubalafito district, Northeastern Ethiopia

2021

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Mapping and quantifying the status of Land use/Land cover (LULC) changes and drivers of change are important for identifying vulnerable areas for change and designing sustainable ecosystem services. This study analyzed the status of LULC changes and key drivers of change for the last 30 years through a combination of remote sensing and GIS with the surveying of the local community understanding of LULC patterns and drivers in the Gubalafto district, Northeastern Ethiopia. Five major LULC types (cultivated and settlement, forest cover, grazing land, bush land and bare land) from Landsat images of 1986, 2000, and 2016 were mapped. The results demonstrated that cultivated and settlement constituted the most extensive type of LULC in the study area and increased by 9% extent. It also revealed that a substantial expansion of bush land and bare land areas during the past 30 years. On the other hand, LULC classes that has high environmental importance such as grazing land and forest cover have reduced drastically through time with expanding cultivated and settlement during the same period. The grazing land in 1986 was about 11.1% of the total study area, and it had decreased to 5.7% in 2016. In contrast, cultivated and settlement increased from 45.6% in 1986 to 49.5% in 2016. Bush land increased from 14.8 to 21% in the same period, while forest cover declined from 8.9 to 2% in the same period. The root causes for LULC changes in this particular area include population growth, land tenure insecurity, and common property rights, persistent poverty, climate change, and lack of public awareness. Therefore, the causes for LULC changes have to be controlled, and sustainable resources use is essential; else, these scarce natural resource bases will soon be lost and will no longer be able to play their contribution in sustainable ecosystem services. Article Highlights Forest cover and grazing lands declined rapidly. Fluctuating trends in cultivated and settlement, bush land and bare land. Population pressure and associated demand are the main causes behind LULC changes in the study area.

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“…Land 2022, 11, 962 2 of 18 pollution, fragmentation and transformation [15][16][17][18][19]. Amid the ever-growing human population and changing climate, encroachment on wetlands is projected to exponentially increase in the near future [20][21][22]. This will further reduce the range of ecosystem services that society derives from these areas.…”

Section: Introductionmentioning

confidence: 99%

“…The information from the previous studies was not robust enough to guide policy or influence management or user decisions. Consequently, wetland encroachment is still high [20] mainly due to the conflict between resource users and conservation policies, which has fueled increased reduction in wetland area and quality. In 1994, Uganda's wetlands covered approximately 15.5% of the country's total land surface [66].…”

Section: Introductionmentioning

confidence: 99%

Preferred Attributes for Sustainable Wetland Management in Mpologoma Catchment, Uganda: A Discrete Choice Experiment

Bunyangha

Muthumbi

Egeru

et al. 2022

Land

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Sustainable wetland management is a focus of many countries worldwide. These mainly use protection as a key policy directive for conservation. However, avoidance directives tend to disenfranchise local populations. Thus, such management is often resisted and rarely effective. Tailoring management strategies to user preferences allows conservation to support community livelihoods for sustainable development. This study employed a discrete choice experiment to determine the wetland management attributes preferred by residents of Mpologoma catchment as a prelude to developing a co-management system. Listed in descending order, attribute preferences were paddy farmers’ schemes, fish farming, education and research, protected wetland area, and recreation and tourism. Respondents’ characteristics influenced their choices. Older adults were more likely to support fish farming. In contrast, existing paddy farmers tended to resist such focuses and an increase in protected wetland area. Additionally, respondents with higher education were opposed to paddy farmers’ schemes, and the preference for education and research was positively influenced by respondents’ income. Respondents were willing to pay between $0.64 and $1.76 per household for each unit improvement in the preferred attribute. Our results underscore the role of DCEs in unlocking individuals’ attribute preferences, whose integration into co-management systems can be important for sustainable wetland conservation.

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Past and future land use/land cover changes from multi-temporal Landsat imagery in Mpologoma catchment, eastern Uganda

Cited by 29 publications

References 59 publications

Soil Macroinvertebrate Response to Paddy Rice Farming Pathways in Mpologoma Catchment, Uganda

Soil Macroinvertebrate Response to Paddy Rice Farming Pathways in Mpologoma Catchment, Uganda

Analysing land use/land cover changes and its dynamics using remote sensing and GIS in Gubalafito district, Northeastern Ethiopia

Preferred Attributes for Sustainable Wetland Management in Mpologoma Catchment, Uganda: A Discrete Choice Experiment

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