【摘要】 分别选取鸡粪有机肥和泥炭土作为岩石边坡植被恢复人工土壤的有机添加物,通过常规工程措施进行原料混配和人工土壤喷射,以研究草本植被成坪期内其对人工土壤抗蚀性的改良效果。运用水稳性团聚体含量、团聚度、分散率等指标,对人工土壤抗蚀性能进行分析,结果表明:(1)两种有机添加物对于提高人工土壤抗蚀性均有显著作用;(2)鸡粪有机肥组各处理水稳性团聚体含量、团聚度和分散率3项指标几乎都显著优于泥炭土组对应处理(p<0.05),鸡粪有机肥改善人工土壤抗蚀性效果显著优于泥炭土;(3)各指标相关性分析表明,鸡粪有机肥组有机质含量与团聚度、分散率和分散系数3个指标相关性显著,而泥炭土组有机质含量与所有指标相关性均不显著。(4)回归分析表明,相对于泥炭土,在人工土壤配比设计阶段,通过添加鸡粪有机肥能够更好地对人工土壤抗蚀性能进行预控。(5)在本研究中原料土壤∶鸡粪有机肥(质量比)为2.41~2.94时,人工土壤抗蚀性能效果最好。更多还原

【Abstract】 In order to study the effects of organic amendments on the anti-erodibility of synthetic soils for rock slope revegetation during the establishment period of pioneer herbaceous vegetation,choosing chicken manure(CM) and peat soil(PS) as organic amendments of synthetic soils for rock slope revegetation respectively,and mixing materials and spraying synthetic soils were applied conventional engineering measures.Water stable aggregate content(WSA),aggregate degree(AD),disperse rated(DR) and disperse coefficient(DC) were selected to analysis the anti-erodibility of synthetic soils.The results showed that:(1) chicken manure and peat soil played an important role in improving anti-erodibility of synthetic soils;(2) WSA,AD and DR of all treatments in group CM almost are significant superior to that in group PS(p<0.05),CM had a much better capability in improving anti-erodibility of synthetic soils;(3) Correlation analysis of all indexes showed that there were significant correlation between organic content and indexes in group including AD,DR and DC(p<0.05);(4) Regression analysis showed that applying CM can be propitious to anticipating control anti-erodibility of synthetic soils,compared to PS;(5) In this research,synthetic soils have the best anti-erodibility,if soil∶CM(weight∶weight) is 2.41-2.94.更多还原