Propagation of Caragana tibetica and its ecological role in adaptation to arid desert environment

In order to understand the reproductive characteristics of Caragana tibetica in the desert areas and reveal its mechanism of adaptation to environment,the shrub structure,ramet characteristics,breeding tendency and clonal growth characteristics of C.tibetica clusters in the Alshan desert region of the Inner Mongolia Plateau were studied.The results showed that clonal propagation of C.tibetica was the dominant way in the arid desert region,and C.tibetica reproduced ramets mainly by branches covered by sand and had a clonal architecture of phalanx.C.tibetica was well adapted to the arid environment of desert region by the higher proportion of asexual reproduction,phalanx clonal architecture and well-developed root systems,which made it be one of the dominant species in the desert region.