Study On Application Of Remote Sensing In Quantitative Resource Survey Of Traditional Chinese Medicine

Sustainable utilization and bio-diversity protection of Traditional Chinese medicine ( TCM ) have been hotspot of present TCM study, the choice of appropriate method is one of the primary problems confronted with the study. This paper suggested that we should introduce modern technologies in TCM resource survey based on improvement of traditional methods, to form new methods that meeting the need of times development, and promote the sustainable development of TCM.In this paper ,the author explore the survey methods for the cultivated medicinal plant resources such as P. notogingseng based on remote sensing. Through the preliminary study by remote sensing technique and field survey, in the study area, to choose the optimal methods in the procedure for the survey. In this study, assisted with field survey, we had founded a set of survey method for P. notogingseng based on remote sensing technique, which include the remotely sensed data-source selecting, the remote sensing image processing, interpretation and validation etc. With different resolution remotely-sensing data at the study area, we calculated the area ,the natural storage and the yield of P. notoginseng. For maguan county ,with SPOT5(5m), the relative right rate of judgement, the relative precision of area and the relative precision of yield with statistics is 92.7% , 94.4% and 92.9% separately, and with TM(30m), the relative right rate of judgement, the relative precision of area values is only 71.4% and 58.8%, though, for qiubei county, with TM(30m), the relative precision of area with statistics can reach 74.7%, which showed that choosing appropriate remotely-sensing data and processing methods for different area, the remote sensing technique is feasible for resource survey of cultivated medicinal plants such as P. notoginseng.Sampling technology is also been involved in the study, the author suggested that we should introduce ground digital photography and low altitude remote sensing to improve the precision, reduce work error from people, enhance the supervision of survey. As for ground digital photography, the method's precision is also checked. the results depends on the heighth between the camera and field ground, when the distance is 3m, the coverage area can be...