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
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
The study assessed women’s participation in the Communal Area Management Programme for Indigenous Resources (CAMPFIRE) activities in southeast Zimbabwe. The study collected data using an interview questionnaire admin...The study assessed women’s participation in the Communal Area Management Programme for Indigenous Resources (CAMPFIRE) activities in southeast Zimbabwe. The study collected data using an interview questionnaire administered to five CAMPFIRE committees in October 2014. There were relatively no differences in the selected attributes on CAMPFIRE committee composition across the five study communities i.e., 1) the number of people and their level of education, and 2) gender and age composition. There were more men (5 ± 0.11) than women (2 ± 0.02) in CAMPFIRE program committees across the five study communities. Men dominate leadership and decision making over CAMPFIRE in south-eastern Zimbabwe. Yet, it is the women who use most of the natural resources at household level, such as game meat, wild fruits and wild vegetables as relish, fuel wood as source of energy for cooking, and baskets woven from woodland products. It was concluded that despite all the benefits that a gender sensitive approach could bring to CAMPFIRE, women participation in CAMPFIRE programs in southeast Zimbabwe was still low as evidenced by their numbers in committees that make decisions for the program. There was need for deliberate action to ensure increased women participation in CAMPFIRE programs, especially at the decision-making level. A certain number of committee positions in CAMPFIRE should be reserved for women.展开更多
Illegal wood harvesting, a factor that threats conservation efforts, was assessed in Chimanimani National Park (CNP), Zimbabwe, in April 2016. The study identified preferred indigenous woody species, determined the us...Illegal wood harvesting, a factor that threats conservation efforts, was assessed in Chimanimani National Park (CNP), Zimbabwe, in April 2016. The study identified preferred indigenous woody species, determined the uses, and collected local people’s perceptions on forest resource management by-laws and forest resource conservation in quantity. A three-stage sampling design was adopted;that is, 1) purposive sampling, where three wards (Chikukwa ward 11, Chikwakwa ward 17 and Ngorima ward 5b) were selected as study areas from a total of seventeen wards in Chimanimani District, 2) random sampling, where three villages [Batanai (75 households), Chikukwa (110 households) and Tamuka (46 households)], totalling 231 households, were selected from a total of 15 villages spread over the three wards. The third stage was the random of households where 46 questionnaires were administered and collected in the 3 randomly selected villages representing 20% of the targeted population. The study results highlighted that illegally harvested indigenous woody plants were principally for household uses. Preferred woody species included those of Brachystegia, Terminalia, Acacia, Bauhinia, Pericopsis, Combretum and Pericopsis genera. Quantities collected ranged from 0.2 to 0.4 tons of firewood monthly to 3 to 6 tons mostly for tobacco curing. Most respondents reported that by-laws were not effective in combating illegal wood harvesting. It was concluded that CNP woodlands are under stress due to illegal wood harvesting. It is recommended that a robust community-based strategy to conserve woody species and natural resource utilisation be developed.展开更多
Our study focused on the effects of wood poaching on the vegetation structure and composition in Mukuvisi Woodland, Zimbabwe. Mukuvisi Woodland, located within the precincts of Harare urban area, Zimbabwe, suffers fro...Our study focused on the effects of wood poaching on the vegetation structure and composition in Mukuvisi Woodland, Zimbabwe. Mukuvisi Woodland, located within the precincts of Harare urban area, Zimbabwe, suffers from high illegal wood utilization pressure stemming from the need to fulfill alternative energy demands created by persistent electricity shortages and an unstable economic environment, particularly between 2000 and 2008. This results in a continuous flux of vegetation and a disturbed animal habitat driven mainly by anthropogenic activities. Due to the heterogeneity in vegetation utilisation trends, we used the stratified systematic random sampling technique, where the site was divided into two strata, central and boundary. Twelve 30 × 20 m permanent plots were established in which species name, species diversity, height, basal area, plant status, fire evidence, number of stems and saplings were recorded and assessed in April and May 2012. A total of 968 woody plants were assessed representing 47 woody plant species. All woody vegetation variables recorded and assessed showed no significant difference (P > 0.05) between the two strata, i.e., central and boundary, in Mukuvisi Woodland, except sapling density (P = 0.022). Principal Component Analysis indicated evidence of fire impacts on vegetation structure. The study concludes that illegal wood harvesting in Mukuvisi Woodland has not yet reached alarming proportions and can be contained. The study recommends collaborative arrangements with key stakeholders, promotion of the use of alternative energy sources and increased environmental education and awareness campaigns.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
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.
文摘The study assessed women’s participation in the Communal Area Management Programme for Indigenous Resources (CAMPFIRE) activities in southeast Zimbabwe. The study collected data using an interview questionnaire administered to five CAMPFIRE committees in October 2014. There were relatively no differences in the selected attributes on CAMPFIRE committee composition across the five study communities i.e., 1) the number of people and their level of education, and 2) gender and age composition. There were more men (5 ± 0.11) than women (2 ± 0.02) in CAMPFIRE program committees across the five study communities. Men dominate leadership and decision making over CAMPFIRE in south-eastern Zimbabwe. Yet, it is the women who use most of the natural resources at household level, such as game meat, wild fruits and wild vegetables as relish, fuel wood as source of energy for cooking, and baskets woven from woodland products. It was concluded that despite all the benefits that a gender sensitive approach could bring to CAMPFIRE, women participation in CAMPFIRE programs in southeast Zimbabwe was still low as evidenced by their numbers in committees that make decisions for the program. There was need for deliberate action to ensure increased women participation in CAMPFIRE programs, especially at the decision-making level. A certain number of committee positions in CAMPFIRE should be reserved for women.
文摘Illegal wood harvesting, a factor that threats conservation efforts, was assessed in Chimanimani National Park (CNP), Zimbabwe, in April 2016. The study identified preferred indigenous woody species, determined the uses, and collected local people’s perceptions on forest resource management by-laws and forest resource conservation in quantity. A three-stage sampling design was adopted;that is, 1) purposive sampling, where three wards (Chikukwa ward 11, Chikwakwa ward 17 and Ngorima ward 5b) were selected as study areas from a total of seventeen wards in Chimanimani District, 2) random sampling, where three villages [Batanai (75 households), Chikukwa (110 households) and Tamuka (46 households)], totalling 231 households, were selected from a total of 15 villages spread over the three wards. The third stage was the random of households where 46 questionnaires were administered and collected in the 3 randomly selected villages representing 20% of the targeted population. The study results highlighted that illegally harvested indigenous woody plants were principally for household uses. Preferred woody species included those of Brachystegia, Terminalia, Acacia, Bauhinia, Pericopsis, Combretum and Pericopsis genera. Quantities collected ranged from 0.2 to 0.4 tons of firewood monthly to 3 to 6 tons mostly for tobacco curing. Most respondents reported that by-laws were not effective in combating illegal wood harvesting. It was concluded that CNP woodlands are under stress due to illegal wood harvesting. It is recommended that a robust community-based strategy to conserve woody species and natural resource utilisation be developed.
文摘Our study focused on the effects of wood poaching on the vegetation structure and composition in Mukuvisi Woodland, Zimbabwe. Mukuvisi Woodland, located within the precincts of Harare urban area, Zimbabwe, suffers from high illegal wood utilization pressure stemming from the need to fulfill alternative energy demands created by persistent electricity shortages and an unstable economic environment, particularly between 2000 and 2008. This results in a continuous flux of vegetation and a disturbed animal habitat driven mainly by anthropogenic activities. Due to the heterogeneity in vegetation utilisation trends, we used the stratified systematic random sampling technique, where the site was divided into two strata, central and boundary. Twelve 30 × 20 m permanent plots were established in which species name, species diversity, height, basal area, plant status, fire evidence, number of stems and saplings were recorded and assessed in April and May 2012. A total of 968 woody plants were assessed representing 47 woody plant species. All woody vegetation variables recorded and assessed showed no significant difference (P > 0.05) between the two strata, i.e., central and boundary, in Mukuvisi Woodland, except sapling density (P = 0.022). Principal Component Analysis indicated evidence of fire impacts on vegetation structure. The study concludes that illegal wood harvesting in Mukuvisi Woodland has not yet reached alarming proportions and can be contained. The study recommends collaborative arrangements with key stakeholders, promotion of the use of alternative energy sources and increased environmental education and awareness campaigns.
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.
