策勒绿洲4种杨树的生理生态学特性的研究——P-V曲线和持水力的研究

Study on characteristics of ecophysiology of four poplars in the Cele oasis

通过对策勒绿洲的 4种杨树 (新疆杨、箭杆杨、胡杨和灰胡杨 )的P -V曲线和持水力的测定分析 ,得出了初步结论

A study on ecophysiological characteristics of Populus albavar.pyramidalis, P.nigra var.thevestina, P. euphratica and P. pruinosa has been made in this paper.It has concluded some results with many methods of measurement,such as P-V curves and comparison of water holding ability.According to the parametes of P-V curves and the values of water holding ability,the ability of drought resistance of P.alba var.pyramidalis and P. nigra var.thevestina (introduced species)is weaker than that of P.euphratica and P.pruinosa(native species).This is the result that P.euphratica and P. pruinos adjust the native environment for a long time. This result is more helpful and more meaningful to choose the best tree forming the oasis shelter forest and to improve the system of oasis shelter forest.