内容:文本/纯文本;charset="UTF-8" TY - JOUR A1 - Sinare, Hanna A1 - Peterson, Garry D. A1 - Börjeson, Lowe A1 - Gordon, Line J. TI -萨赫勒地区村庄景观的生态系统服务1952-2016:估算数据稀缺地区N2 -布基纳法索和更广泛的萨赫勒地区在降雨、人口和景观利用方面经历了实质性变化。这些变化改变了生态系统服务、人们从生态系统获得的好处以及农村生计。然而，由于社会、农业和生态数据的缺失和碎片化，很难评估这些变化的规模。我们估计了1952年至2016年布基纳法索农村地区10个主要供应生态系统服务的变化。我们使用了一个貌似合理的社会生态变化的简单模型来进行历史外推，填补了这些数据空白，并评估了历史变化。我们的方法结合了对历史航拍照片和卫星图像的解读，以及实地观察和采访。我们将该方法应用于两个行政区的6个村的6个时间点。我们通过分析每种服务产生的变化及其对人们的价值的一系列估计，对历史生态系统的使用进行了建模。研究发现，耕地生态系统服务功能在研究期间增加了1.5-23倍，而非耕地生态系统服务功能柴草、建筑材料和药品的价值则下降到以前的66-20%。 Per capita production of cultivated ecosystem services has remained relatively stable, while the per capita production of all other ecosystem services has decreased, to 54–11% of their 1952 values. Although alternatives are available for some ecosystem services, such as medicine and construction material, there are currently limited alternatives available for other services, such as firewood. Decline in wild food availability and consumption is likely to reduce the nutritional value of rural people’s food. Our analysis of changes demonstrates that shrubs and trees on fields generate many ecosystem services that are key to rural livelihoods, and that efforts to enhance crop yields should maintain shrubs and trees. Our approach for estimating historical ecosystem services may also be useful to apply in other data scarce regions. JO - Ecology and Society PB - The Resilience Alliance Y1 - 2022 P1 - 2022 VL - 27 IS - 3 C7 - 1 UR - //www.dpl-cld.com/vol27/iss3/art1/ DO - 10.5751/ES-13292-270301 KW - agroforestry KW - Burkina Faso KW - ecosystem services KW - landscape change KW - livelihoods KW - smallholder agriculture KW - West Africa ER -