Regional suitability analysis of endangered medicinal plant Dactylorhiza hatagirea / 中国中药杂志

The wild plant Dactylorhiza hatagirea commonly used in Tibetan medicine. In recent years, it is on the verge of extinction due to improper excavation and habitat deterioration. Based on the literature review, and the meteorological and ecological data of Qinghai Province and data derived from the field survey, this study took the altitude, humidity index, annual average wind speed, monthly average sunshine, precipitation and temperature in growing season, soil type and vegetation type as the zoning indexes, and applied ArcGIS software for spatial superposition analysis. The results showed that the D. hatagirea was primarily found in the alpine meadow in the east and south of Qinghai Province. The overall suitable area was about 30 700 km~2. Taking Qinghai Lake as the boundary for reference, the area in the south appeared to be more suitable, while the area in the east appeared to be secondary in suitability. Henan County, Zeku County, Jiuzhi County and Banma County were the main suitable areas covering the expanse of 12 454 km~2. Through the field verification, such zoning results appeared to be accurate, precise and illustrative. The spatial distribution of ecological suitability provides the decision-making basis for the resource investigation, environment protection and comprehensive resource management. It also provides the empirical case for developing the interdisciplinary research method in the suitability study of medicinal plants.

Study on sustainable development of Tibetan medicine resources on Qinghai-Tibet Plateau / 中国中药杂志

Through using the theoretical research results of traditional Chinese medicine resource management and sustainable utilization as references,this article systematically analyzes the relationship between economic subsystems for utilization of wild renewable resources in Tibetan medicine,resources,environment and social systems. It sorts out and designs the relationship diagram of the sustainable utilization system for Tibetan medicine resources,input and output relationship diagrams of economics subsystems for Tibetan medicine resources,development model diagram for Tibetan medical industrial chain,market development flow chart of wild herb resources of Tibetan medicine,causal circuit diagram of sustainable use mechanism for Tibetan medicine resources,cause tree of the stock and function for Tibetan medicine resources,cause tree of total income for Tibetan medicine resource utilization and tree diagram of compensation fund usage of Tibetan medicine resources. It provides an innovative research method for Tibetan medicine resources,and theoretical basis and relevant countermeasure for constructing sustainable approaches to development of wild renewable resources in Tibetan medicine.