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Abstract Based on database of ecological factors and geographic information space analysis method , we analyzed suitability of Wolfiporia extensa (Peck) Ginns producing regions, in the hope of providing reference for scientific zoning and cultivation. Ecological factors we analyzed mainly include temperature, altitude, and soil. Our analysis shows that Hubei, Anhui, Yunnan, Guizhou and Sichuan provinces are regions that have highest similarity with original producing areas of Wolfiporia externa (Peck) Ginns. This is basically consistent with actual conditions . In addition , we predicted some regions ( for example , Gansu ) that have not been recorded in literature , which provides scientific and reliable data support for seed introduction and expansion of Wolfiporia extensa (Peck) Ginns. Using the GIS-based program for the distribution prediction of traditional Chinese medicine (TCMGIS-II) to analyze suitabibty of Wolfiporia extensa (Peck) Ginns producing regions is scientific and accurate, and will provide important reference for seed introduction, cultivation and scientific zoning of Wolfiporia extensa (Peck) Ginns.
Key words Wolfiporia extensa (Peck) Ginns, Ecological factors, Suitability of producing regions
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Wolfiporia extensa ( Peck ) Ginns ( formerly known as Poria cocos F. A. Wolf) is a fungus in the Polyporaceae family. It is a wooddecay fungus but has a terrestrial growth habit. Normal in nature and sweet and bland in taste, it is attributive to heart, lung, attributive to heart and kidney , and has functions of water-discharging and damp-clearing, invigorating the spleen and tranquilizing heart . It has many common names, such as hoelen, poria, tuckahoe , China root , Fuling , Fushen , and matsuhodo. With triterpeneid effective composition , such as Pachymic acid and Pachymaran , Wolfiporia extensa ( Peck ) Ginns is one type of raw materials of Guizhi Fuling Capsule and is a type of traditional health food . Wide state of Wolfiporia extensa (Peck) Ginns is widely distributed and has been found in many parts of China. The /dentification of Production of Metería Medica has records that the most genuine Wolfiporia extensa ( Peck ) Ginns comes from Yunnan. Under the guidance of traditional Chinese medicine ( TCM ) theory, with over 2 000 years of clinical use, seed introduction and expansion, and cultivation, China has gradually established...