摘要
对大青山区阳坡30a油松人工林生长季土壤水分特征进行研究，根据2006年的观测数据分析，得出以下结果：1）油松人工林0～20cm层土壤水分季节动态与降雨量变化相似，7月份土壤含水量最高，后逐渐减小趋于平缓，20～60cm层随季节变化波动很小，基本呈现水平趋势；2）土壤水分在垂直分布上可分为土壤水分速变层、活跃层、相对稳定层，3）0～60cm土层范围内，土壤含水量随密度增加，呈下降趋势，但表层变化规律不显著。
The soil moisture characteristics of 30a Pinus tabulaeforrnis plantation in south slope of Daqing - Mountains were studied. The results showed that （ 1 ） In 0 -20cm layer, the soil moisture seasonal dynamics were similar to the change of rainfall amount, the peaks appeared in July . In 20 - 60cm layers , the soil moisture changed slightly and stayed on one level. （2） The vertical distribution of soil water could be divided into three layers, variable speed- layer, active -layer and relatively stable -layer. （3） The soil moisture decreased with the increment of the density in 0 -60cm layer, it was not obvious in surface.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2009年第3期162-165,共4页
Journal of Arid Land Resources and Environment
基金
教育部博士基金项目(2005012900)
内蒙古教育厅项目(NJZZ07041)资助
关键词
油松人工林
土壤水分
林分密度
大青山
Pinus tabulaeformis plantation
soil moisture
stand density
Daqing- Mountains
