| Pistachio (Pistacia vera L.) has great economic value as a precious nut and woody-oil plant. In order to develop pistachio in China, study and determining the suitable planting areas of pistachio in China is one of our main tasks. This will help us avoiding blind introduction and provide scientific basis for introduction decision. In this dissertation, according to Theory of tree introduction, such as Climatic analogies, Factors theory, Ecological factor analysis and so on, on the basis of analysis on suitable climatic -ecological areas and suitable soil areas of pistachio in China, combined with the results obtained from eco-biological research, the suitable planting regions of pistachio are demarcated. At last, suggestions of developing pistachio in China are given.On the basis of climatic data from 147 meteorological stations in China, 9 climatic factors that mainly effect on cultivation of pistachio are compared with these in original by the method of optimal ratio of fuzzy similarity. According to results and combining with practical introduction and cultivation experiments, 3 kind of suitable climatic and ecological regions of Central-Asia type and Mediterranean type of pistachio are demarcated respectively. The study also indicates that the result of weighted regionalization is better than the one of equal regionalization.Soil texture, soil PH value and calcium content in soil of 52 soil type that mainly distribute in 60 soil regions and 3 soil zones of China are compared with these in original by the method of grey gethering, According to result of grey gethering, 52 soil type are divided four grades which are most suitable, suitable, less suitable and not suitable for cultivation of pistachio. Then in the light of the grades of soil type that each soil region is composed of, 3 kind of suitable soil regions of pistachio are delimited.Eco-biological characteristics are studied in 8 introduced plantations by the method of observation and comparison, studies indicate that, (1) The adaptation of pistachio Central-Asia type in Kashi is the best, the adaptation in other plantations in proper order are Baoding, Linfen, Gangu and Kunming. (2) The adaptation of pistachio Mediterranean type in Shexian is the best, the other plantations in proper order are Gangu, Baoding Linfen and Langfang. (3) The hardiness of pistachio Central-Asia type is better than pistachio Mediterranean type. (4) The sequence of hardiness of pistachio and its rootstocks is as follows: P. chinensis > P. vera (Xinjiang) > Kerman > P. atlantica > UCB I > PG I .According to the regionalization results of suitable climatic - ecological regions and suitable soil regions of pistachio in China, climatic factor and soil factor are synthetically analysed by the method of calculating weighted Haiming distance. On the basis of the values of weighted Haiming distance, combined with the results obtained fromeco-biological research, practical introduction, cultivation experiments and taken some crucial conditions into consideration, the suitable planting regions of pistachio Central-Asia type and pistachio Mediterranean type in China are demarcated respectively. The extensive area of China is divided into most suitable, suitable, less suitable and not suitable planting regions for pistachio Central-Asia type and Mediterranean type cultivation.In the light of regionalization results of the suitable planting areas of pistachio in China, considered the introduction history and present situations, some proposals concerning pistachio development in China are given below. (1) We can develop pistachio Central-Asia type in Kashi region, north China upland plain and northwest loessal hilly region at present. (2) In Xichang city, easten Yunnan Highland, Hanzhong basin and west Hubei valley and hilly land, we can develop pistachio Mediterranean type. (3) we must pay attention to study on breeding and cultivated technology of pistachio.
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