Standardization and fragmentation:Exploring the triggering mechanism of landscape genetic variation in Lanzhou Hekou ancient town
Due to the impact of homogeneous construction,interrupted tourism investment,and population outflow,some traditional villages have become spaces where landscape standardiza-tion and landscape fragmentation coexist.This article takes the ancient town of Hekou in Lan-zhou city,Gansu province as a case study,and uses the DFRI genetic theory and landscape ge-netic mutation model as the research basis.Starting with landscape genetic sequencing,partici-patory observation and semi-structured interviews were conducted to explore the mechanism of local landscape genetic variation since the construction of the ancient town project in 2014.The results show that:(1)Capital investment,elite behavior,and ideological changes can activate the response bases in the landscape genes,leading to changes in the base sequence.(2)Capital investment is the physical mechanism and external driving force for inducing landscape genetic variation.The spatial heterogeneity,non-sustainability,and purpose of capital investment in the ancient town project will affect the results of landscape genetic variation.(3)Elite groups driv-ing village practices are the chemical mechanism and practical subjects for inducing landscape genetic variation,and rural governance,tourism development,and intangible cultural heritage inheritance led by the villagers committee and tourism companies can induce cultural landscape construction,improve villagers'quality,and change the livelihood patterns.(4)The change in ideology brought about by urbanization and social transformation is the biological mechanism and potential factor inducing landscape genetic variation.Urban culture,industrial transforma-tion,and cultural evolution can insert into hidden segments of the landscape genes,thereby af-fecting the results of landscape genetic variation.Based on the analysis of the inducing mecha-nisms,this article proposes genetic optimization strategies for landscape standardization and fragmentation.
traditional villageslandscape standardizationlandscape fragmentationlandscape gene variationtriggering mechanismsHekou ancient town
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