摘要
以金沙江干热河谷地区3种采取不同水土保持措施的坡耕地小区为例,以裸地小区为对照,采用TDR法观测0~20 cm土层土壤含水量,分析不同措施小区的土壤水分变化特征,结果表明:不同措施小区0~20 cm土层的土壤含水量均呈现弱变异;不同措施对土壤含水量有较大影响,按表层土壤含水量排序为坡改梯小区>掏钵种植小区>横坡耕作小区>裸地小区。
Taking the sloped land area where used 3 different soil and water conservation measures in the dry-hot valley of Jinsha River as an example and taking bare land area as contrast,the paper observed the soil moisture content of 0 ～ 20 cm layer by using TDR method and analyzed the variation characteristics of soil moisture of the area with different measures. The outcomes show that a) the soil moisture content of 0 ～ 20 cm layer of the area with different measures all shows slight variation and; b) different measures have greater influence to the soil moisture content,ordering by moisture content of topsoil of terracing area>pot planting area>contour plowing area>bare land area.
出处
《中国水土保持》
2018年第8期41-43,68,共4页
Soil and Water Conservation in China
基金
全国水土流失动态监测项目(CJSBJC-2-JCWW-2016-019)
关键词
坡面
水土保持措施
土壤含水量
变异系数
金沙江干热河谷
slope surface
soil and water conservation measure
soil moisture
variation coefficient
the dry-hot valley of Jinsha River
