摘要
采用定位研究和土钻取样技术方法,观测2001~2003年间不同月份的土壤蓄水量数据,对闽北地区木荷林地、杉木林地、封山育林地和对照1m土层内的土壤蓄水量进行动态研究。研究结果表明：4种不同土地利用方式年、月平均土壤蓄水量大小顺序均为木荷林地〉杉木林地〉封山育林地〉对照,且月平均土壤蓄水量变化趋势基本一致,呈明显的＂W＂模式,每年的1~6月份土壤蓄水量均较高,6月份以后土壤蓄水量处于下降时期,至9月或10月达到年内最小值,而后土壤水分支出处于下降阶段,土壤蓄水量又开始回升。木荷林地、杉木林地、封山育林地和对照不同层次月平均土壤蓄水量的变化明显不同,对照0~20cm土壤蓄水量变异比木荷林地、杉木林地和封山育林地明显。木荷林地、杉木林地和对照不同层次土壤蓄水量随深度的增加呈逐渐增大趋势,封山育林地在0~60cm深度内呈增加趋势,而在60~100cm深度内则有减小趋势。其不同层次土壤蓄水量的大小顺序均为木荷林地〉杉木林地〉封山育林地〉对照。
By using the position research and soil sampling Research on soil water storage by different land use types,that is forest lands of Schima superba and Chinese fir,enclosing and tending forest and the control in northern Fujian were studied from 2001 to 2003 through in situ method of soil drilling.The results show that Yearly and Monthly mean water storage of soils in different land use types followed the order： the SS the CF enclosing and tending forest the control.And the patterns of annual soil water storage in four land use types were similar and showed as ＂W＂ shape mode.In general it was high in June,thereafter decreased until the lowest values in September or October,then increased again.There was obvious difference in monthly change of water storage in soil layers for the four land use types.Change of water storage in top 20cm soil in the control was more obvious in comparison with those in other three land use types.Water storage of soils in the SS,CF and the control increased with soil depth.While in enclosing and tending forest,water storage increased from topsoil until the soil depth of 60cm,then decreased to 1m depth.The order of water storage in different layers for the four land use types was same,that was the SS the CF enclosing and tending forest the control plot.
出处
《亚热带水土保持》
2011年第2期1-5,10,共6页
Subtropical Soil and Water Conservation
