首页|毛乌素沙地东南缘不同植被盖度下土壤水分特征分析

毛乌素沙地东南缘不同植被盖度下土壤水分特征分析

扫码查看
2007年利用EC-5土壤水分探头对毛乌素沙地东南缘土壤水分进行了定位观测,分析了不同植被盖度下土壤水分的时空分布特征及土壤蓄水量的差异.结果表明:在时间尺度上,固定沙地土壤水分含量表现为:秋季>春季>夏季,半固定沙地和流动沙地土壤水分含量为:夏季>秋季>春季.在垂直方向上,固定沙地整个剖面土壤水分变化成"S"型曲线变化,半固定沙地和流动沙地土壤水分成反"S"型曲线变化.0-200cm沙层中,流动沙地土壤蓄水量最大,半固定沙地次之,固定沙地最差.
The characteristics of soil water in different vegetation coverage on the south-eastern margin Mu us sandy land
The soil water on southeastern margin in mu us sandy land had been observed. The difference of soil water storage capacity and spatial and temporal distribution of soil water had been analyzed in different vegetation coverage. The results showed that on time scales, the soil water content in fixed sandy land is autumn > spring > summer, but in semi fixed dune and moving dune the soil water content is summer > autumn > spring. On verti-cal, in whole profiles, the Varity of soil water content in fixed sandy land forms a S curve, but in semi fixed dune and moving dune soil water content form a anti -S curve. In 0 -200cm sand layer, the soil water storage capacity in moving dune is the largest, in fixed sandy land that is the least, and the number of that in semi fixed dune is in the middle of those three types.

Mu Us Sandyfixed sand dunessoil moisture content

崔利强、吴波、杨文斌、李刚铁、赵名彦、李禾

展开 >

内蒙古农业大学,呼和浩特,010019

中国林业科学研究院林业研究所,国家林业局森林培育重点实验室,北京,100091

中国林业科学研究院林业新技术研究所,北京,100091

北京林业大学,教育部水土保持与荒漠化防治重点实验室,北京,100083

展开 >

毛乌素沙地 土壤水分含量 固定沙地 蓄水量

国家科技支撑计划课题中国林业科学研究院基金重点项目

2007BAC03A10CAFYBB2007008

2010

干旱区资源与环境
中国自然资源学会干旱半干旱地区研究委员会 内蒙古农业大学

干旱区资源与环境

CSSCICSCDCHSSCD北大核心
影响因子:1.492
ISSN:1003-7578
年,卷(期):2010.24(2)
  • 23
  • 9