【摘要】 本文通过对河套灌区小美旱杨贮盐浓度和生物量的研究,推求其采伐可带离灌区的盐量。主要结论为:尽管小美旱杨防护林采伐时可带走一部分盐分,但对于灌区盐分平衡的作用是非常小的,可以忽略不计。更多还原

【Abstract】 The salt ions content and biomass of Populus simonii×(Populus pyramidalis+Salix matsudana)cv.Poplaris shelterbelt were studied,the salt ions content of fell in the Hetao area was calculated.The conclusion is: felling shelterbelt can decrease saltness,but it does not influenced salt balance of Hetao area.更多还原