Do Trees on Farms Improve Household Well-Being? Evidence From National Panel Data in Uganda
Do Trees on Farms Improve Household Well-Being? Evidence From National Panel Data in Uganda
复制标题
农场里的树木能改善家庭福祉吗？
DOI：
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发表时间：
2020
影响因子：
3.2
通讯作者：
A. Zezza
中科院分区：
文献类型：
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作者：
Daniel C. Miller;J. Muñoz;L. V. Rasmussen;A. Zezza
农场上的树木为非洲各地的家庭提供生计福利。然而，到目前为止，关于这种树如何随着时间的推移影响家庭福祉的证据仍然缺乏。在国家一级，证据尤其稀少，因为它对决策具有特殊价值。为了解决这一知识差距，我们使用来自乌干达的具有国家代表性的小组数据来研究农场种植树木如何影响家庭幸福的两个维度：1)收入和2)食品安全和营养。我们分析了2005-2006年、2010-2011年和2013-2014年乌干达国家小组调查的家庭数据，包括农场采用和放弃树木的措施、人口因素和其他社会经济变量。我们使用固定效应面板规格和概率模型来评估农场专门种植树木的面积与乌干达1395户家庭的家庭收入和营养结果之间的关系。我们的结果表明，种植树木，特别是果树，与家庭总消费量和营养结果(以5岁以下儿童的体重和消瘦状况为指标)的改善有关。这些发现表明，农场上的树木在乌干达和非洲及其他地区的其他国家的减贫和可持续发展努力中可以发挥重要作用。
Trees on farms provide livelihood benefits to households across Africa. To date, however, evidence on how such trees affect household well-being over time remains lacking. Evidence is especially sparse at the national level where it has particular value for policymaking. To address this knowledge gap, we use nationally representative panel data from Uganda to examine how on-farm tree growing may affect two dimensions of household well-being: 1) income and 2) food security and nutrition. We analyzed household-level data from the 2005–2006, 2010–2011, and 2013–2014 Ugandan National Panel Surveys, including measures on adoption and abandonment of trees on farms, demographic factors, and other socioeconomic variables. We used a fixed-effects panel specification and probabilistic models to assess the relationship between the area devoted to trees on farms and household income and nutrition outcomes for 1,395 households across Uganda. Our results show that growing trees especially fruit trees, was associated with improvements in both total household consumption and nutritional outcomes (proxied by weight and wasting status of children younger than 5 years old). These findings suggest the important role trees on farms can play in poverty reduction and sustainable development efforts in Uganda and other countries in Africa and beyond.