Understanding trends of land use land cover (LULC) changes is important for biodiversity monitoring and conservation planning, and identifying the areas affected by change and designing sustainable solutions to reduce...Understanding trends of land use land cover (LULC) changes is important for biodiversity monitoring and conservation planning, and identifying the areas affected by change and designing sustainable solutions to reduce the changes. The study aims to evaluate and quantify the historical changes in land use and land cover in Mukumbura (Ward 2), Mt Darwin, Zimbabwe, from 2002 to 2022. The objective of the study was to analyse the LULC changes in Ward 2 (Mukumbura), Mt Darwin, Northern Zimbabwe, for a period of 20 years using geospatial techniques. Landsat satellite images were processed using Google Earth Engine (GEE) and the supervised classification with maximum likelihood algorithm was employed to generate LULC maps between 2002 and 2022 with a five (5) year interval, investigating the following variables, forest cover, barren land, water cover and the fields. Findings revealed a substantial reduction in forest cover by 38.8%, water bodies (wetlands, ponds, and rivers) declined by 55.6%, whilst fields (crop/agricultural fields) increased by 93.3% and the barren land cover increased by 26.3% from 2002 to 2022. These findings point to substantial changes in LULC over the observed years. LULC changes have resulted in habitat fragmentation, reduced biodiversity, and the disruption of ecosystem functions. The study concludes that if these deforestation trends, cultivation, and settlement land expansion continue, the ward will have limited indigenous fruit trees. Therefore, the causes for LULC changes must be controlled, sustainable forest resources use practiced, hence the need to domesticate the indigenous fruit trees in arborloo toilets.展开更多
This study aimed at examining local people’s knowledge and perceptions of wildlife conservation in southeastern Zimbabwe. Data were collected between October and November in 2012 using a purposive sampling approach o...This study aimed at examining local people’s knowledge and perceptions of wildlife conservation in southeastern Zimbabwe. Data were collected between October and November in 2012 using a purposive sampling approach of households (n = 114) in communities adjacent to Gonarezhou National Park. Our results show that local people were aware of the Communal Areas Management Programme for Indigenous Resources (CAMPFIRE) and Gonarezhou, and their associated purposes. However, our results suggest that local people had inadequate knowledge about the Great Limpopo Transfrontier Conservation Area (GLTFCA) and its purpose. Moreover, mixed perceptions about the impact of the GLTFCA on local livelihoods and conservation in the study area were recorded. Finally, the results indicated that improving park-community relationships, education and awareness programmes on natural resources conservation could assist in raising the status of conservation in Gonarezhou and GLTFCA.展开更多
Wildlife reintroduction regulations require feasibility assessment to inform planning. The study aims to contribute to the existing knowledge on northern Gonarezhou National Park (GNP), southeastern Zimbabwe, prior to...Wildlife reintroduction regulations require feasibility assessment to inform planning. The study aims to contribute to the existing knowledge on northern Gonarezhou National Park (GNP), southeastern Zimbabwe, prior to the black rhino re-introduction project. The study objective was to assess browse availability and suitability for black rhino re-introduction in northern GNP. We stratified the study area into two strata, i.e. north and south of Runde River in GNP. A total of 96 sample plots measuring 20 m × 30 m (i.e., 48 plots in each study stratum) were randomly placed across the study strata, between March and April 2011. Woody plant variables recorded are: shrub height, shrub canopy diameters, evidence of browsing on woody plants, number of shrubs and woody species. Principal browse frequency of occurrence and proportional quality of woody species were categorized and analyzed in combination with knowledge on the woody species’ value to black rhino diet. Preferred woody species were determined using browse suitability/electivity index. A total of 3201 woody plants were recorded across the study strata. Woody species diversity and black rhino’s browse suitability/electivity value significantly (p = 0.001) differed across the study strata. However, there were no significant differences in shrub density, shrub canopy volume and density of browsed plants. Common principal forages were recorded and included: knob thorn Acacia (Acacia nigrescens), small-leaved sickle-bush (Dichrostachys cineria) and tamboti (Spirostachys africana). The study suggested that black rhino’s browse suitability, preferred browse woody species, woody species diversity and proportional browse availability, as selected attributes are favorably more pronounced in the northern side of the Runde River in GNP, suggesting it is more suitable as a sanctuary for the black rhino re-introduction programme. It was recommended that black rhinos could be re-introduced in the northern GNP area provided other important factors such as law enforcement are taken into consideration.展开更多
文摘Understanding trends of land use land cover (LULC) changes is important for biodiversity monitoring and conservation planning, and identifying the areas affected by change and designing sustainable solutions to reduce the changes. The study aims to evaluate and quantify the historical changes in land use and land cover in Mukumbura (Ward 2), Mt Darwin, Zimbabwe, from 2002 to 2022. The objective of the study was to analyse the LULC changes in Ward 2 (Mukumbura), Mt Darwin, Northern Zimbabwe, for a period of 20 years using geospatial techniques. Landsat satellite images were processed using Google Earth Engine (GEE) and the supervised classification with maximum likelihood algorithm was employed to generate LULC maps between 2002 and 2022 with a five (5) year interval, investigating the following variables, forest cover, barren land, water cover and the fields. Findings revealed a substantial reduction in forest cover by 38.8%, water bodies (wetlands, ponds, and rivers) declined by 55.6%, whilst fields (crop/agricultural fields) increased by 93.3% and the barren land cover increased by 26.3% from 2002 to 2022. These findings point to substantial changes in LULC over the observed years. LULC changes have resulted in habitat fragmentation, reduced biodiversity, and the disruption of ecosystem functions. The study concludes that if these deforestation trends, cultivation, and settlement land expansion continue, the ward will have limited indigenous fruit trees. Therefore, the causes for LULC changes must be controlled, sustainable forest resources use practiced, hence the need to domesticate the indigenous fruit trees in arborloo toilets.
文摘This study aimed at examining local people’s knowledge and perceptions of wildlife conservation in southeastern Zimbabwe. Data were collected between October and November in 2012 using a purposive sampling approach of households (n = 114) in communities adjacent to Gonarezhou National Park. Our results show that local people were aware of the Communal Areas Management Programme for Indigenous Resources (CAMPFIRE) and Gonarezhou, and their associated purposes. However, our results suggest that local people had inadequate knowledge about the Great Limpopo Transfrontier Conservation Area (GLTFCA) and its purpose. Moreover, mixed perceptions about the impact of the GLTFCA on local livelihoods and conservation in the study area were recorded. Finally, the results indicated that improving park-community relationships, education and awareness programmes on natural resources conservation could assist in raising the status of conservation in Gonarezhou and GLTFCA.
文摘Wildlife reintroduction regulations require feasibility assessment to inform planning. The study aims to contribute to the existing knowledge on northern Gonarezhou National Park (GNP), southeastern Zimbabwe, prior to the black rhino re-introduction project. The study objective was to assess browse availability and suitability for black rhino re-introduction in northern GNP. We stratified the study area into two strata, i.e. north and south of Runde River in GNP. A total of 96 sample plots measuring 20 m × 30 m (i.e., 48 plots in each study stratum) were randomly placed across the study strata, between March and April 2011. Woody plant variables recorded are: shrub height, shrub canopy diameters, evidence of browsing on woody plants, number of shrubs and woody species. Principal browse frequency of occurrence and proportional quality of woody species were categorized and analyzed in combination with knowledge on the woody species’ value to black rhino diet. Preferred woody species were determined using browse suitability/electivity index. A total of 3201 woody plants were recorded across the study strata. Woody species diversity and black rhino’s browse suitability/electivity value significantly (p = 0.001) differed across the study strata. However, there were no significant differences in shrub density, shrub canopy volume and density of browsed plants. Common principal forages were recorded and included: knob thorn Acacia (Acacia nigrescens), small-leaved sickle-bush (Dichrostachys cineria) and tamboti (Spirostachys africana). The study suggested that black rhino’s browse suitability, preferred browse woody species, woody species diversity and proportional browse availability, as selected attributes are favorably more pronounced in the northern side of the Runde River in GNP, suggesting it is more suitable as a sanctuary for the black rhino re-introduction programme. It was recommended that black rhinos could be re-introduced in the northern GNP area provided other important factors such as law enforcement are taken into consideration.
