摘要
为了研究六盘山地区不同林地对土壤水分动态变化的影响,采用定点观测的方法,对海子流域不同林地土壤水分动态变化进行监测。结果表明:不同林地土壤含水量的垂直变化趋势相似,土壤含水量会随着土壤深度的增加而呈现减小趋势,但各变化曲线有所差异;各林地在0~20 cm土层土壤含水量变异系数都超过0.3,然后均呈现逐级减小趋势;观测期内各林地土壤含水量变化具有明显的季节性特征,故将其变化划分为3个阶段(消耗期、补给期、消退期)。
In order to study dynamic variation and influence of soil water content from different forest in Liupanshan area,dynamic variations of soil water content were analyzed by fixed-point monitoring methods at different forest along Haizi River.The results showed that the changes of soil moisture content in different forestland were similar. With the increasing of soil depth, soil water comtent will decrease. But the variation curves were different; in 0~20 cm soil layer, the variation coefficient of soil moisture content was over 0.3, then the trend gradually decreased. The change of soil water content in different forestland had an obvious seasonal characteristic, so the observing period could be divided into three period: consumed period,accumulated period and subsided period.
出处
《宁夏工程技术》
CAS
2016年第2期167-170,共4页
Ningxia Engineering Technology
基金
宁夏科技惠民计划项目"六盘山海子生态移民迁出区生态恢复与重建技术集成示范"
关键词
六盘山地区
不同林地
土壤含水量
Liupan Mountain area
different forestland
soil water
