文化遗产的活化利用是中华文化复兴的重要组成部分，同时也是旅游景观的重要元素。以西北地区国家级重点文物保护单位为例，运用核密度估算、标准差椭圆等空间分析方法，结合景观基因图谱构建的质性方法，识别并解析了西北地区文化遗产旅游景观的时空演化特征。结果表明：文化遗产整体呈“东密西疏”的空间分布，沿西北—东南轴线摆动，重心迁移与社会演进密切相关；基于生物学DNA结构，构建的文化遗产旅游景观基因框架包括历史变迁、核心区与多元融合、时代性与传承、扩展与集聚四类核心基因，形成可动态演化的时空基因图谱。研究为文化遗产分级保护、文旅融合发展及区域协同治理提供理论支撑与实践路径，推动遗产价值的系统识别与高效转化。

The activation and utilization of cultural heritage are crucial components of the revitalization of Chinese culture and integral elements of tourism landscapes. Using national key cultural heritage sites in the northwest region of China as a case study, this research employs spatial analysis methods such as kernel density estimation and standard deviation ellipses, combined with qualitative approaches derived from landscape genetics, to identify and analyze the spatiotemporal evolution characteristics of cultural heritage tourism landscapes in the northwest region. The results indicate that cultural heritage exhibits an overall spatial distribution pattern characterized by "dense in the east and sparse in the west, " oscillating along a northwest-southeast axis, with its center of gravity shifting in relation to social evolution. Based on the biological DNA analogy, the constructed framework of cultural heritage tourism landscapes includes four core genes: historical transitions, core areas and diversification, temporality and continuity, and expansion and aggregation, forming a dynamic spatiotemporal genetic map. This study provides theoretical support and practical pathways for graded protection of cultural heritage, integrated cultural-tourism development, and regional collaborative governance, thereby advancing systematic recognition and efficient transformation of heritage values. Meanwhile, this study offers a new paradigmatic reference for geographical inquiries into related cultural heritage.