Application of DPSIR model to identify the drivers and impacts of land use and land cover changes and climate change on land, water, and livelihoods in the L. Kyoga basin: implications for sustainable management

Abstract

Land use, land cover, and climate change impacts are current global challenges that are affecting many sectors, like agricultural production, socio-economic development, water quality, and causing land fragmentation. In developing countries like Uganda, rural areas with high populations dependent on agriculture are the most affected. The development of sustainable management measures requires proper identification of drivers and impacts on the environment and livelihoods of the affected communities. This study applied drivers, pressure, state, impact, and response model in the L. Kyoga basin to determine the drivers and impacts of land use, land cover, and climate change on livelihoods and the environment. The objective of this study was to determine the drivers and impacts of land use, land cover, and climate changes on the environment and livelihoods in the L. Kyoga basin and suggest sustainable mitigation measures. Focus group discussions, key informant interviews, field observations, and literature reviews were used to collect data. Population increase and climate change were the leading drivers, while agriculture and urbanization were the primary pressures, leading to degraded land, wetlands, and forests; loss of soil fertility, hunger, poverty, poor water quality, which are getting worse. The local communities, government, and non-government institutions had responses to impacts, including agrochemicals, restoration, and conservation approaches. Although most responses were at a small/pilot scale level, most responses had promising results. The application of policies and regulations to manage impacts was also found to be weak. Land use, land cover changes, and climate change occur in the L. Kyoga basin with major impacts on land, water, and community livelihoods. With the observed increase in climate change and population growth, drivers and impacts are potentially getting worse. Therefore, it is essential to expand interventions, provide relief, review policies and regulations, and enforce them. The findings are helpful for decisions and policy-makers to design appropriate management options.

Physical and chemical water quality characteristics in six wetlands of Lake Tana, Ethiopia

“…Wondim, Mosa, and Alehegn 2016; Dersseh et al 2020; Enyew, Assefa, and Gezie 2020; Ayele and Atlabachew 2021b; Damtie, Mengistu, and Meshesha 2021; Dersseh et al 2022), who studied three shallow bays along the Lake Tana shoreline and reported the highest eutrophication in the agriculture-impacted bays due to invasion of the wetlands and inshore lake by water hyacinth. The ndings also agree with studies carried out in other African Lakes, for example, in the Lake Kyoga basin of Uganda byObubu et al (2022), Lake Victoria of Kenya byOtieno et al (2022), in Lake Victoria of Uganda byWanda et al (2015), and in the African Great Lakes(Plisnier et al 2022). …”

Social-Ecological Landscape Sustainability in Ghana and Nigeria: Applying the DPSIR- SEL Framework

“…In Nigeria, the driving forces of LULC changes include agricultural expansion, livestock production systems, artisanal shing, agricultural production and capacity development constraints, livelihood status and options, and institutional and policy support. These activities have led to converting natural areas into built-up areas and agricultural land, with potential impacts such as habitat loss, reduced biodiversity, and increased soil erosion [55], [56].…”

¿Cómo proteger los humedales costeros peruanos? Una respuesta a partir de un modelo conceptual de sus impulsores de cambio

“…Thus, it is necessary to increase the efforts to study DCh in unprotected areas, where they could be occurring more frequently. It is important to consider that a systematic search for specialized literature (as the one conducted in this research) is an auxiliary tool to identify DCh; there are other direct methods or tools to estimate these (como la utilizada en esta investigación) constituye una herramienta auxiliar para la identificación de IC; existen otros métodos o herramientas directas para contabilizar de estos impactos, tales como las entrevistas (Shalizi et al, 2020), uso de imágenes satelitales (Lahai et al, 2022) y anotaciones observacionales (Obubu et al, 2022). Estas estrategias pueden ser utilizadas en especial para aquellos humedales menos estudiados.…”

“…Esto último nos permite insistir en la necesidad de un adecuado planeamiento territorial. Los humedales costeros generalmente se encuentran rodeados por urbanizaciones que, en muchos casos, generan la alteración en la sedimentación y la dinámica de nutrientes (Faulkner, 2004); además de causar efectos negativos sobre el régimen hidrológico y de relacionarse con la deposición de los contaminantes químicos por el mal manejo de las aguas residuales (Rodríguez et al, 2017; Camas-Guardamino impacts, such as interviews (Shalizi et al, 2020), satellite images (Lahai et al, 2022), and observational notes (Obubu et al, 2022).…”