| The ecology experiment method and clone plant community method were used to study the clone characteristics of Teraena mongolica in Orodos plateau, including clone architecture,ramet population characteristics,foraging behaviour,resource sharing,risk-spreading and so on . The results showed: (1) Tetraena mongolica had special patterns of clone growth:the guerrilla pattern, which shaped long dropping branch when covered by sands and the phalanx patterns, which produced from roots. The difference of spacer length and branching intensity in different populations was large, while the difference of branching angle in different community was small. Compared with the Qian Li mountain population, the Hai Nan population exhibited higher ramet density, smaller average ramet spacing and similar ramet height. (2) In phenotypes clone index, sand thickness had positive liner regression with spacer length,braching intensity,braching height,crown width respectively, which showed higher foraging behaviour, and no relationship existed in sand thickness and ramet number. For one Tetraena mongolica plant, the higher the ramet number was, the lower the risk of death was. The genet death rate can be effectively reduced by risk-sharing of clone ramet. (3) Water sharing was local, and water was transported in one component system, and exhibited water sharing. Water sharing had priority, which depended on distance between wet and dry water resources. The short the distances was, the higher the priority was. (4) Tetraena mongolica clone population expressed highly adaptive and plastic ecological strategy to environment. Key words: Tetraena mongolica Maxim.; Clone characteristics; Clone architecture; Ramet...
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