The Naxi of Northwest Yunnan,China use medicinal plants to treat skin conditions related to traditional lifestyles in extreme environments.However,modernization endangers both the medicinal plants used to treat skin c...The Naxi of Northwest Yunnan,China use medicinal plants to treat skin conditions related to traditional lifestyles in extreme environments.However,modernization endangers both the medicinal plants used to treat skin conditions and traditional knowledge.Therefore,investigation and documentation of the medicinal plants used and associated traditional knowledge is necessary.In this study,we conducted an ethnobotanical survey in 12 Naxi communities in Northwest Yunnan.For this purpose,we used semistructured surveys to interview 840 informants from Naxi communities.We used informant consensus factor and use frequency as quantitative indices to evaluate the importance of medicinal plant species.A total of 161 medicinal plant species belonging to 69 families were documented.The highest informant consensus factor(ICF)values were recorded for skin nourishing(ICF?0.849),frostbite and chapped skin(ICF?0.833).These skin treatments are highly related to the environment and lifestyle of Naxi communities.The main active compounds of plants used to treat skin conditions in Naxi communities are known to have skin-treating properties.This study reveals that the skin conditions treated by the Naxi are associated with traditional medicine culture and social economic development.In addition,this study uses ethnobotanical indices to explain how skin condition treatments are linked to the natural environment of Naxi communities.展开更多
The orbit perturbation of meteorologic satellite is used for the inversion of stress drop dynamic field of regional crustal structure. Rapid scanning over vast area is carried out to obtain short term earthquake-gener...The orbit perturbation of meteorologic satellite is used for the inversion of stress drop dynamic field of regional crustal structure. Rapid scanning over vast area is carried out to obtain short term earthquake-generating precursor field of seismic source and near-source districts in order to predict the three earthquake elements: epicenter, magnitude and commencement time of earthquake with the same effect as weather forecast. Taking the strong earthquakes that occurred in recent years in the NW of Yunnan as examples, direct deduction has been made for Lijiang and Wuding earthquakes, and curves of dynamic characteristics of stress drop before and after earthquakes as well as abnormal fluctuations of precursor stress drop and commencement time of earthquake have been plotted.展开更多
基金This study was funded by Natural Science Foundation of China(No.31670340 and No.31970357)Bio-Innovation Center of DR PLANT,Kunming Institute of Botany,Chinese Academy of Sciences.
文摘The Naxi of Northwest Yunnan,China use medicinal plants to treat skin conditions related to traditional lifestyles in extreme environments.However,modernization endangers both the medicinal plants used to treat skin conditions and traditional knowledge.Therefore,investigation and documentation of the medicinal plants used and associated traditional knowledge is necessary.In this study,we conducted an ethnobotanical survey in 12 Naxi communities in Northwest Yunnan.For this purpose,we used semistructured surveys to interview 840 informants from Naxi communities.We used informant consensus factor and use frequency as quantitative indices to evaluate the importance of medicinal plant species.A total of 161 medicinal plant species belonging to 69 families were documented.The highest informant consensus factor(ICF)values were recorded for skin nourishing(ICF?0.849),frostbite and chapped skin(ICF?0.833).These skin treatments are highly related to the environment and lifestyle of Naxi communities.The main active compounds of plants used to treat skin conditions in Naxi communities are known to have skin-treating properties.This study reveals that the skin conditions treated by the Naxi are associated with traditional medicine culture and social economic development.In addition,this study uses ethnobotanical indices to explain how skin condition treatments are linked to the natural environment of Naxi communities.
文摘The orbit perturbation of meteorologic satellite is used for the inversion of stress drop dynamic field of regional crustal structure. Rapid scanning over vast area is carried out to obtain short term earthquake-generating precursor field of seismic source and near-source districts in order to predict the three earthquake elements: epicenter, magnitude and commencement time of earthquake with the same effect as weather forecast. Taking the strong earthquakes that occurred in recent years in the NW of Yunnan as examples, direct deduction has been made for Lijiang and Wuding earthquakes, and curves of dynamic characteristics of stress drop before and after earthquakes as well as abnormal fluctuations of precursor stress drop and commencement time of earthquake have been plotted.
