岩石边坡植被恢复成坪期人工土壤抗蚀性研究  

Anti-erodibility of Synthetic Soils During Turf Stage of Rocky Slope Revegetation

作　　者：潘树林[1,2] 辜彬[2] 杨晓亮[2] 

机构地区：[1]宜宾学院矿业与安全工程学院,四川宜宾644007 [2]四川大学生命科学学院,四川成都610064

出　　处：《水土保持通报》2012年第6期1-5,10,共6页Bulletin of Soil and Water Conservation

基　　金：国家自然科学基金项目"岩石边坡植被恢复人工土壤动态特征与调控机制研究"(40971057)

摘　　要：以浙江省丹山市普陀区朱家尖机场周边岩石边坡植被恢复施工现场为研究对象,通过添加鸡粪(CM)和泥炭土(PS)两种有机物,组成两组不同配比成坪期人工土壤各12种。通过分析土壤机械组成、团聚体含量等指标,计算了人工土壤的无机黏粒类、微团聚体类、水稳性团聚体类、有机胶体类4大类11小类的抗蚀性因子。然后利用主成分法分析各因子对土壤抗蚀性的贡献,并据此对人工土壤抗蚀性和添加不同配比有机物的抗蚀效果进行了评价。结果表明:(1)人工土壤抗蚀性指标可压缩为微团聚类、无机胶粒类和水稳性团聚类3大类,其中团聚度、团聚状况、分散率为最佳抗蚀性评价指标;(2)由于PS组不能满足主成分分析,无法定量评价不同配比的抗蚀性效果;(3)通过相关主成分线性函数及综合指标函数分析,CM组处理质量比为:原土/CM=2.41时,人工土壤抗蚀性能最佳。Construction site of rocky slope surrounding Zhujiajian airport of Zhejiang Province was selected as the study site.Synthetic soils were constructed by adding chicken manure（CM） and peat soil（PS） with 12 different ratios.Based on the analyses of soil texture and aggregate composition,11 anti-erodibility parameters,which can be further classified into four groups including inorganic clay,micro-aggregate,water-stable aggregate and organic colloid,were calculated and compared.Principal component analysis was then applied to determine the contribution of each anti-erodibility factor.Furthermore,the anti-erodibility of the synthetic soils with organic amendments was evaluated.The results showed that the anti-erodibility indicators should be re-grouped into three categories： microaggregate,inorganic clay,water-stable aggregate,in which aggregation degree,aggregation status,dispersal rate were the best indicators for assessing anti-erodibility.As the PS group could not meet the minimum requirement of principal component analysis,no quantitative evaluation of anti-erodibility was conducted for the synthetic soils with different mixing ratios.Linear function analysis of the principal components and composite indicators showed that synthetic soils of the CM group have the best anti-erodibility with soil∶CM ratio of 2.41（weight basis）.

关 键 词：岩石边坡 人工土壤 成坪期 主成分分析 抗蚀性 指标 

分 类 号：S157.1[农业科学—土壤学]