[Resources and utilization of medicinal plants in countries and regions involved in "the Belt and Road" Initiative].

The protection, development, and utilization of medicinal plant resources are important cornerstones of maintaining human health. However, due to factors such as the reduction of high-quality land resources, deterioration of ecological environments, and excessive and disorderly resource development, medicinal plant resources are becoming scarce, and some of them are insufficiently supplied. With the proposal of "the Belt and Road" Initiative, the cooperation between China and "the Belt and Road" partners(the countries and regions involved in "the Belt and Road" Initiative)is increasingly close, which provides a new opportunity for carrying out trade of medicinal plant resources and alleviating the problem of imbalance and relative inadequacy of medicinal plant resources in countries.

[Effects of weeds on crops and their ecological control in ecological agriculture of Chinese materia medica].

Weeds is one of the important parts of agricultural ecosystem of Chinese materia medica. Weeds is a double-edged sword with advantages and disadvantages for the cultivated medicinal plants. In this study, we firstly analyzed the positive and negative effects of weeds on the yield and quality of Chinese materia medica.

[No-tillage:core strategies for sustainable development of ecological agriculture of Chinese materia medica].

Ecological agriculture is a crucial way for agriculture of Chinese materia medica, which emphasizes the application of ecological principles in the cultivation of traditional Chinese medicine. While long-term intensive farming and modern chemical agriculture have threatened soil health, the sustainable development of ecological agriculture of Chinese materia medica is constrained. No-til-lage can reduce both frequency and intensity of tillage.

[Application of traditional Chinese medicine(TCM) traceability system based on TCM quality characteristics and HACCP system].

It is crucial to establish a complete set of traditional Chinese medicine(TCM) quality traceability management process system, in order to stabilize the pricing order of TCM market and reconstruct the transmission path of TCM quality signals. In this study, we reviewed the mature experience of food and drug supervision at home and abroad, analyzed the quality characteristics of TCM, and put forward that the quality control of TCM products can learn from the hazard analysis and critical control point(HACCP) system in food safety quality control. This study points out that the HACCP system provides not only technical guidance for the traceability management of TCM, but also ideas for improving the quality of TCM products and the safety risk control of TCM.

[Population characteristics and threatened of wild Angelica sinensis in Gansu province].

The study aims to investigate spatial distribution pattern and age structure of wild Angelica sinensis in Gansu province.Ten plots each with an area of 100 m2 were set and the spatial coordinates of all wild A. sinensis individuals were measured within each plot.

[Community structure and diversity of soil bacteria in rhizosphere of Salvia miltiorrhiza and Salvia miltiorrhiza f. alba based on pyrosequencing].

Rhizosphere bacteria play a vital role in plant nutrition absorption,growth and disease resistance. In this study,high-throughput sequencing technology was used to analyze the rhizosphere bacterial communities of Salvia miltiorrhiza and S. miltiorrhiza f.

[Research on protection mode of Dao-di herbs-taking the protection mode of geographical indications as an example].

Dao-di herbs have been synonymous with quality medicinal herbs in our mind hearts since ancient times and are the essence of Chinese medicine culture. The development of genuine regional herbs faces problems such as insufficient supply of local resources and lack of competitive advantages. It is necessary to seek a suitable model to protect and develop authentic medicinal materials.

[Research on competitiveness of traditional Chinese medicine industry's international trade based on diamond theory].

China has a long history of the international trade of traditional Chinese medicine(TCM).And the export products mainly composed of Chinese herbal medicine and its extracts with Chinese patent herbal medicine and health care products as complementary items.The international trade of TCM faces problems of structural disequilibrium in export products and trade barriers.

[Progress in researches on pathogens, epidemiology and integrated control of diseases on Salvia miltiorrhiza in China].

Danshen (Salvia miltiorrhiza) is a perennial herbal plant as a bulk commodity of traditional Chinese medicinal material. With the growing market demand, the planting scale of Danshen has been fast enlarged. The occurance of diseases on Danshen has become as a major threaten of its production.

[Species diversity of ex-situ cultivated Chinese medicinal plants].

Ex-situ conservation is an important means to protect biological genetic resources. Resource protection has received more and more attention with the continuous improvement of the comprehensive utilization of traditional Chinese medicine resources. In this paper, the research and compilation of the species list of ex-situ cultivated medicinal plants in 12 Chinese Academy of Sciences botanic gardens and 19 specialized medicinal botanic gardens in China were carried out.

[Influence of Nagoya Protocol on traditional Chinese medicine].

The three objectives of the Convention on Biological Diversity (CBD) are the conservation of biological diversity, the sustainable use of its components and the fair and equitable sharing of benefit sarising from the utilization of genetic resources.The Nagoya Protocol significantly advances the CBD's third objective by providing a strong basis for greater legal certainty and transparency for both providers and users of genetic resources.In June 2016, the Chinese government approved the accession to the Nagoya Protocol.

[Analysis of characteristics and problems of international trade of Poria cocos in China].

Poria cocos is one of medical materials frequently used in China and well marketed at home and abroad. Based on the analysis of exports and imports data of P. cocos, we found that large proportions of P.

[Diversity and distribution of the threatened medicinal vascular plants in Lancang].

The rich diversity in medicinal plants provides an important material basic for the development of Traditional Chinese medicine in China. It is important to explore the present situation of medicinal plants within special regions in order to provide scientific instructions for their sustainable protection and exploitation and utilization. In this study, we carried out the field survey according to the guideline of national survey of Chinese material medica resources and the guideline of plant species diversity survey and estimation at county level with the line transect method.