摘要
为了完善植生型生态混凝土适生性的判据,拌制了4组不同孔隙状态的生态混凝土,在其上种植百喜草,考察了百喜草的表观生长情况,测定了百喜草植物体内的脯氨酸含量、根系吸收面积及根系活力.结果表明,生态混凝土的植物适生性不仅取决于孔隙率,同时也受孔隙平均孔径的影响.孔隙率越高,平均孔径越大,越有利于植物的生长.对于百喜草而言,相比于孔隙率为36%、平均孔径小于4mm的生态混凝土,它在孔隙率为39.45%、平均孔径为6.4mm的混凝土中长势较好.
In order to provide more references for the suitability determination of eco-concrete for kinds of eco-concretes with different void statuses and the growth of the plant was observed. Then, planting, four were fabricated, in which Paspalum notatum Flugge was planted, several items of the plant were measured, including the content of proline in the plant, the ability of the roots in absorbing nutrition and the proportion of active part of the roots. The results show that （ 1 ） besides the void ratio, the average aperture also exert significant influence on the suitability of the plant; （2） the plant grows much better in the eco-concrete with a larger void ratio and a bigger average aperture; and （3） Paspalum notatum Flugge grows better in the eco-concrete with a void ratio of 39.45% and an average aperture of 6.4mm than in the eco-concrete with a void ratio of 36% and an average aperture of 4mm.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第12期5-9,共5页
Journal of South China University of Technology(Natural Science Edition)
基金
国家"863"计划资助项目(2003AA601040)
广东省科技厅社会发展计划项目(2006B36701004)
