Abstract：The effects of salt-resisting water retentive agent on growth physiology and survival rate of Acacia crassicarpa in coastal sandy soil were studied.The results showed that it had no significant effects on physiological indexes when 1 000-2 000 g salt-resisting water retentive agent to each seedling was used.However,when 3 000-4 000 g salt-resisting water retentive agent to each seedling was used,enough rainwater could be absorbed and stored by soil.So more rainwater would be supplied for seedling during drought period,which would decrease drought stress to seedling and it would increase the water potential,water content and chlorophyll content of leaves.In addition,it would keep root vigor and maintain the root peroxidase(POD).Compared with CK,the height,DBH and crown width of seedling increased 0.52-0.74 m,0.6-0.8 cm and 15-25 cm,respectively.The survival rate and preserving rate increased 26.9%-32.2% and 20.1%-36.5%,respectively.
收稿日期: 2009-04-01
引用本文:
林杰. 耐盐保水剂对滨海沙地厚荚相思生理和成活率的影响[J]. 中国水土保持科学, 2009, 7(6): 92-97.
LIN Jie. Effects of salt-resisting water retentive agent on physiology and survival rate of Acacia crassicarpa in coastal sandy soil. SSWCC, 2009, 7(6): 92-97.
2009, Vol. 7 
