摘要
为揭示太行山中山区植被配置模式对其水土保持功能的影响,研究以荒坡为对照,在坡向与海拔高度相同、营造初期土壤条件相近的六种林分内设置径流小区,对其中的径流量、泥沙量、土壤理化性质及土壤的入渗率进行了监测。经统计分析,结果表明：不同配置间的水土保持功能具有显著差异（P〈0.05）,其大小顺序依次为荆条与红豆草立体配置、油松与荆条、红豆草混交、油松纯林、油松与荆条混交林、红豆草地、荆条灌木林、荒坡;不同植被类型的径流量及泥沙量与土壤有机质、全氮、速效磷、速效钾0、~80 min内的土壤入渗率成显著的负相关（P〈0.05）,而与土壤容重、毛管孔隙度、非毛管孔隙度及总孔隙度间的相关性并不显著（P〉0.05）。这说明,该区域上述植被类型间水土保持功能的差异性可能是因为不同植被配置模式对其所在立地的影响程度不同造成的。
To reveal the influence of vegetation arrangement patterns on function of soil and water conservation,compared with barren slope in this study,runoff plots were set in six stands with the same slope direction and altitude and similar soil condition at the initial stage of building in Taihang Mountain areas.The runoff amount,sediment content,soil physical and chemical properties and soil infiltration rate were monitored.By statistics analysis,the results showed that there were significantly different functions of soil and water conservation among different vegetation arrangement patterns（P 0.05）,and the decrease order was as follows： solid collocation of Vitex negundo L.var.heterophylla and Onobrychis pulchella,combination of Pinus tabulaeformis,Vitex negundo L.var.heterophylla and Onobrychis pulchella,pure forest of Pinus tabulaeformis,mixed plantation of Pinus tabulaeformis and Vitex negundo L.var.heterophylla,the grassland of Onobrychis pulchella,the shrubbery of Vitex negundo L.var.heterophylla and the barren slope.Secondly,there were significant negative correlations between the runoff amount,sediment content of different vegetation arrangements type and the organic matter,total N,available P,available K,0-80 minutes infiltration rate of soil（P 0.05）,however,there were not significant correlations between the runoff amount,sediment content of different vegetation arrangements type and soil bulk density,capillary porosity,non-capillary porosity,total porosity（P 0.05）.This showed that the difference of function of soil and water conservation of above vegetation types was probably because that different influence degrees of soil chemical property and soil infiltration rate in different vegetation arrangement patterns.
出处
《土壤通报》
CAS
CSCD
北大核心
2010年第5期1146-1152,共7页
Chinese Journal of Soil Science
基金
国家林业局林业科技支撑计划"华北土石山区植被恢复与重建技术试验示范"(2006BAD03A1103)资助
关键词
水土保持功能
植被配置
径流量
泥沙量
Function of soil and water conservation
Vegetation arrangements
Runoff amount
Sediment content
作者简介
吕皎（1963-），女，山西太原人，硕士，高级工程师。主要从事森林培育与林业生态方面的研究工作。
