Upon significant land-use changes, understanding how to measure the visual quality is crucial for landscape monitoring, and policymaking. This study aims to apply an expert protocol to the Alto Douro Wine Region (ADWR), an evolving and living cultural landscape classified by UNESCO.

Six visual basins representative of the heterogeneity of ADWR were evaluated: three subjected to monitoring since 2001, with less land use change and three unmonitored with higher change. The visual quality was assessed through an expert protocol divided into three attributes: physical, aesthetic, and psychophysical.

Results show that monitored landscapes obtained higher LVQ scores correlated with imageability, color diversity and land use mosaic. Regarding land-use change, landscapes with higher alteration coincide with lower visual quality. Respondents’ preferences and socio sociodemographic correlations are further discussed.

According to the findings, field enlargement and consequent destruction of traditional vineyards with terraces and olive grove hedges negatively affect the aesthetic value of the Douro landscape. As a result, the management efforts for maintaining terraces and olive grove hedges should have priority. LVQ protocols are powerful tools that should enter more into the landscape quality assessment routine as they are useful to identify priority measures and monitor landscape evolution through time.

在土地利用发生重大变化时，了解如何测量视觉质量对于景观监测和政策制定至关重要。本研究旨在将专家协议应用于上杜罗葡萄酒产区（ADWR），这是一个被联合国教科文组织列为不断发展和活跃的文化景观。

对代表 ADWR 异质性的 6 个可视盆地进行了评估：其中 3 个自 2001 年以来一直接受监测，土地利用变化较小，另外 3 个未监测，变化较大。视觉质量通过专家协议进行评估，分为三个属性：物理、美学和心理物理。

结果表明，监测的景观获得了与成像能力、色彩多样性和土地利用镶嵌相关的较高 LVQ 分数。关于土地利用变化，景观变化较大，视觉质量较低。进一步讨论了受访者的偏好和社会人口统计学相关性。

根据调查结果，田地扩大以及随之而来的对带有梯田和橄榄树篱的传统葡萄园的破坏对杜罗景观的审美价值产生了负面影响。因此，维护梯田和橄榄树篱的管理工作应优先考虑。LVQ 协议是强大的工具，应该更多地进入景观质量评估程序，因为它们有助于确定优先措施并监测景观随时间的演变。