Study on the Spatial Distribution of the Exposure and Reserves of Tibetan Medicinal Zhaxun in the Tibet Autonomous Region based on GIS Technology
This study aims to systematically analyze the spatial distribution characteristics of exposed Tibetan medicinal Zhaxun in the Tibet Autonomous Region,providing scientific evidence for their sustainable utilization and conservation.Conducted on-site measurements of six ecological impact factors related to the exposure points of Tibetan medicinal Zhaxun,including geological types,geomorphological characteristics,elevation,slope,dis-tribution of vegetation types,and annual average temperature.Using ArcGIS 10.8 software and GIS data of the Ti-bet Autonomous Region,the research team performed spatial overlay analysis of the gathered impact factors from field research to predict the spatial distribution of Tibetan medicinal Zhaxun within the Tibet Autonomous Re-gion.Validation of GIS prediction results was conducted through sampling based on field investigation data.The resultes show that:(1)Tibetan medicinal are primarily distributed in 30 counties across Shigatse City,Shannan City,Nyingchi City,Lhasa City,and Ngari Prefecture within the Tibet Autonomous Region.Most residues are found in cliff faces,rock crevices,or caves within high mountain valleys and river areas.Mainly located in forma-tions from the Paleogene,Triassic,and Cretaceous periods,widespread across ten river basins including the Langqin Tsangpo,Xiangquan River,and Majia Tsangpo River basins.The GIS technology successfully covered the predicted range of six validation points sampled in actual fieldwork,validating the scientific rigor and feasibil-ity of this research approach.(2)This study successfully analyzed the spatial distribution characteristics of Tibet-an medicinal Zhaxun in the Tibet Autonomous Region through a combination of field surveys and GIS technolo-gy.The resulting predictions not only provide clues for future surveys and research on Tibetan medicinal resourc-es but also offer a scientific basis for the sustainable utilization and conservation of Tibetan medicinal Zhaxun re-sources.
NETL
NSTL
万方数据
