This study was undertaken to help highlight the negative impacts of economic activities on wetlands in East Africa with a specific focus on Mara Bay and Masirori wetlands, Tanzania, a region where the local communitie...This study was undertaken to help highlight the negative impacts of economic activities on wetlands in East Africa with a specific focus on Mara Bay and Masirori wetlands, Tanzania, a region where the local communities still harness wetland resources for economic sustenance. Key economic activities and the negative impacts of the income-generating activities on the wetlands are identified, including the main goods harnessed, level of dependency of the locals to the wetlands, and the level of environmental knowledge of the locals on the wetlands’ ecosystem services. Both qualitative and quantitative tools and techniques viz.: questionnaires, semi-structured interviews, market surveys and spreadsheet analysis were used in this study. The proportion of wetland users involved in papyrus harvesting, food crop cultivation and fishing was 30%, 25% and 24%, respectively while charcoal/firewood and grass for livestock accounted for 12% and 7%, respectively. Significant differences in incomes for charcoal (p < 0.05) across the four villages were recorded but farming, fishing, mat making, herding and fish mongering were non-significant. About 6% of those interviewed had some considerable knowledge on wetland ecosystem services, while the rest (94%) lacked information. Issues identified as having detrimental impacts on the wetlands’ ecosystem services included conversion of sections of the wetlands into farmlands, grazing, charcoal burning, unsustainable fishing, overharvesting of papyrus and brick-making. Farming was found to be a major income-generating activity within the two wetlands. Other important economic activities were charcoal burning, fishing, mat making and fish mongering. The findings from the research are useful for devising appropriate strategies for wetland conservation. Such measures may include assigning wetland ecologists to the village governments, valuation of the wetlands, commissioning of a price and resource regulatory board for the wetland goods, creation of wetlands monitoring program, a fining展开更多
Our ecosystem provides us with essential services, most of which come without a price tag and hence are assumed to be ＂free gifts of nature＂ available in plenty. Much of the neoclassical thought and analysis was bas...Our ecosystem provides us with essential services, most of which come without a price tag and hence are assumed to be ＂free gifts of nature＂ available in plenty. Much of the neoclassical thought and analysis was based on this assumption until recently. The dynamic rise in population due to rapid industrialisation and urbanization has caused the realisation that ecosystem services are also limited. Environmental degradation is a common term used to describe the loss or impairment of ecosystem services. Migration is often a consequence of environ- mental degradation; when ecosystem services are impaired and survival comes at stake. But is the degradation of essential ecosystem services sufficient to motivate people to relocate？ Through a review of literature on migration and environmental degradation, this paper strives to answer the above question along with exploring ways how monitoring the deterioration of the environment on time can spare human inhabitants of any ecosystem the pains of migration in search of better means of survival and sustenance.展开更多
The return airway tunnel of bank 6 is an important tunnel for air return and auxiliary transportation.While under construction,the tunnel was seriously deformed, and the bottom was heavily squeezed.When completed,the ...The return airway tunnel of bank 6 is an important tunnel for air return and auxiliary transportation.While under construction,the tunnel was seriously deformed, and the bottom was heavily squeezed.When completed,the bottom was smoothed out several times and a lot of maintenance were done.But about half year later,the tunnel collapsed.To counter the problems mentioned above,we systematically expounded our ideas and designed for solving the problem of the sustenance of the return airway tunnel of section 6.展开更多
The distortion and dissolution of the concept of person has led to hideous atrocities,such as annihilation of the Jews in the previous century,the continued oppression of the Palestinian people,the massacre of Moslems...The distortion and dissolution of the concept of person has led to hideous atrocities,such as annihilation of the Jews in the previous century,the continued oppression of the Palestinian people,the massacre of Moslems in Srebrenica,the Rwandan genocide,racial discrimination,the manifold manipulations of man through science and technology,barbarous and iniquitous laws(such as the legalization of abortion,etc.),the horrendous killings by Islamic terrorists(such as ISIS in Syria and the Boko Haram insurgents in Nigeria),the increasing biomedical researches as in stem cell,etc.This paper seeks to make it clear that man occupies a central place in the created order.From this perspective,man enjoys a special status and should not to be treated as mere object.Thus,it is arguable that the ontological basis for a substance being denominated as person is its special dignity,which separates it from a mere thing.Human dignity,therefore,is an intrinsic quality of all human beings.Among other things,this paper will strive to investigate various violations of human dignity and the role of philosophy in sustaining the dignity of human person in the 21st century.展开更多
文摘This study was undertaken to help highlight the negative impacts of economic activities on wetlands in East Africa with a specific focus on Mara Bay and Masirori wetlands, Tanzania, a region where the local communities still harness wetland resources for economic sustenance. Key economic activities and the negative impacts of the income-generating activities on the wetlands are identified, including the main goods harnessed, level of dependency of the locals to the wetlands, and the level of environmental knowledge of the locals on the wetlands’ ecosystem services. Both qualitative and quantitative tools and techniques viz.: questionnaires, semi-structured interviews, market surveys and spreadsheet analysis were used in this study. The proportion of wetland users involved in papyrus harvesting, food crop cultivation and fishing was 30%, 25% and 24%, respectively while charcoal/firewood and grass for livestock accounted for 12% and 7%, respectively. Significant differences in incomes for charcoal (p < 0.05) across the four villages were recorded but farming, fishing, mat making, herding and fish mongering were non-significant. About 6% of those interviewed had some considerable knowledge on wetland ecosystem services, while the rest (94%) lacked information. Issues identified as having detrimental impacts on the wetlands’ ecosystem services included conversion of sections of the wetlands into farmlands, grazing, charcoal burning, unsustainable fishing, overharvesting of papyrus and brick-making. Farming was found to be a major income-generating activity within the two wetlands. Other important economic activities were charcoal burning, fishing, mat making and fish mongering. The findings from the research are useful for devising appropriate strategies for wetland conservation. Such measures may include assigning wetland ecologists to the village governments, valuation of the wetlands, commissioning of a price and resource regulatory board for the wetland goods, creation of wetlands monitoring program, a fining
文摘Our ecosystem provides us with essential services, most of which come without a price tag and hence are assumed to be ＂free gifts of nature＂ available in plenty. Much of the neoclassical thought and analysis was based on this assumption until recently. The dynamic rise in population due to rapid industrialisation and urbanization has caused the realisation that ecosystem services are also limited. Environmental degradation is a common term used to describe the loss or impairment of ecosystem services. Migration is often a consequence of environ- mental degradation; when ecosystem services are impaired and survival comes at stake. But is the degradation of essential ecosystem services sufficient to motivate people to relocate？ Through a review of literature on migration and environmental degradation, this paper strives to answer the above question along with exploring ways how monitoring the deterioration of the environment on time can spare human inhabitants of any ecosystem the pains of migration in search of better means of survival and sustenance.
文摘The return airway tunnel of bank 6 is an important tunnel for air return and auxiliary transportation.While under construction,the tunnel was seriously deformed, and the bottom was heavily squeezed.When completed,the bottom was smoothed out several times and a lot of maintenance were done.But about half year later,the tunnel collapsed.To counter the problems mentioned above,we systematically expounded our ideas and designed for solving the problem of the sustenance of the return airway tunnel of section 6.
文摘The distortion and dissolution of the concept of person has led to hideous atrocities,such as annihilation of the Jews in the previous century,the continued oppression of the Palestinian people,the massacre of Moslems in Srebrenica,the Rwandan genocide,racial discrimination,the manifold manipulations of man through science and technology,barbarous and iniquitous laws(such as the legalization of abortion,etc.),the horrendous killings by Islamic terrorists(such as ISIS in Syria and the Boko Haram insurgents in Nigeria),the increasing biomedical researches as in stem cell,etc.This paper seeks to make it clear that man occupies a central place in the created order.From this perspective,man enjoys a special status and should not to be treated as mere object.Thus,it is arguable that the ontological basis for a substance being denominated as person is its special dignity,which separates it from a mere thing.Human dignity,therefore,is an intrinsic quality of all human beings.Among other things,this paper will strive to investigate various violations of human dignity and the role of philosophy in sustaining the dignity of human person in the 21st century.
