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Economic Viability of Smallholder Agroforestry and Beekeeping Projects in Uluguru Mountains, Tanzania: A Cost Benefit Analysis 被引量:2
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作者 Willickister R. Kadigi Yonika M. Ngaga Reuben M. J. Kadigi 《Open Journal of Forestry》 2021年第2期83-107,共25页
Agroforestry and beekeeping are widely promoted as prospective Nature-</span></span><span><span><span style="font-family:""> </span></span></span><span... Agroforestry and beekeeping are widely promoted as prospective Nature-</span></span><span><span><span style="font-family:""> </span></span></span><span><span><span style="font-family:""><span style="font-family:Verdana;">Based Income Generating Activities (NIGAs) to improve livelihoods while at </span><span style="font-family:Verdana;">the same time enhancing biodiversity conservation in degrading</span><span style="font-family:Verdana;"> agro-ecologies. These activities can diversify and increase famers’ incomes and support in</span><span style="font-family:Verdana;">stinctive biota and fauna resilience. However, evidence to showcase and compare their long-term benefits is scant. We use the case of Uluguru</span><span style="font-family:Verdana;"> Mountains in Tanzania to evaluate and compare viability of agroforestry and beekeeping projects using the Cost</span></span></span></span><span><span><span style="font-family:""> </span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">Benefit Analysis (CBA) approach. The results of analysis yielded positive NPVs for both agroforestry and beekeeping projects at discount rates not higher than 8.2% and 8.5% respectively. Overall, the comparison of economic viability between agroforestry and beekeeping projects revealed that the former was relatively more profitable than the later in terms of both the NPV and Benefit</span></span></span><span><span><span style="font-family:""> </span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-family:Verdana;">Cost Ratio (BCR) criteria. However, the Internal Rate of Return (IRR) for beekeeping was slightly higher than that of agroforestry. Yet, we underscore the fact that these two projects can jointly be implemented to enhance livelihoods of farmers and support biodiversity conservation in the study </span></span></span><span style="font-family:Verdana;"><span style="font-family:Verdana;"><span style="font-fami 展开更多
关键词 Uluguru Mountains Uluguru Forestry Reserve Cost Benefit Analysis net present values Benefit Cost Ratios Nature-Based Income Generating Activities
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基于时间价值的保温系统节能净现值分析
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作者 叶晓青 陈金建 杨亮 《重庆建筑》 2016年第1期13-16,共4页
保温系统建设成本和运营成本之和为成本值,以最大能耗方案为基准,其他方案相对基准方案的能耗节约值为收益值,以此提出"节能净现值"概念。该文以重庆市某项目为例,对六种保温方案的节能净现值加以计算,结果表明,节能净现值越... 保温系统建设成本和运营成本之和为成本值,以最大能耗方案为基准,其他方案相对基准方案的能耗节约值为收益值,以此提出"节能净现值"概念。该文以重庆市某项目为例,对六种保温方案的节能净现值加以计算,结果表明,节能净现值越大,成本节约越明显。节能净现值能够较为全面的表示保温系统的成本和收益情况,其大小主要由保温系统所用砌块材料的能耗大小决定。 展开更多
关键词 时间价值 全生命周期 折现 节能净现值(JNPV)
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