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《Acta Botanica Boreali-occidentalia Sinica》 2003-07
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Investigation on the characteristics of biology and ecology of Populus euphratica and Populus pruinosa

LI Zhi jun,LIU Jian ping,YU Jun,ZHOU Zheng li (Institute of Plant Science and Technology,Tarim University of Agricultural Reclamation,Alar, Xinjiang 843300,China)  
It was studies that geographic distribution,habitat, characteristics of biology and ecology of Populus euphration and Populus pruinosa in 6 different populations. The results indicated that abloom phenophase, growth and development extent,output of flower and fruit,seed propagation ,clonal propagation,the structure of community and luxuriant state of 6 different populations were different in different habitat.When water table level is from 3 to 7 m, growth of the population is bad,breeding rate of seed propagation and vegetative propagation wad very low,the age structure of community is ageing and population have the tendency of decline,influencing factor was changes in the water table level,soil moisture and soil salt.When water table level is from 1.5 to 2.5 m, growth of the population is normal,the output of fruit and flower is high. Populus euphration and Populus pruinosa were dominant species in various community,the vertical structure of community was divided into three layers,no closing and the phenomenon of floor window was universal in horizontal structure of community.
【Fund】: 国家自然科学基金资助项目 3 0 0 60 0 0 7
【CateGory Index】: S718.4
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