摘要: |
用压力膜法测定了同一质地(重壤土)不同干容重装填土、不同水分处理装填土、农田原状土的水分特征曲线,通过土壤水分特征曲线(θ-s)及土壤含水率(θ)和当量孔径(d)关系曲线的对照分析,发现干容重、水分处理及土壤的原状性对水分特征曲线有显著影响。 |
关键词: 土壤水分特征曲线 土壤水吸力 当量孔径 装填土 原状土 |
DOI: |
分类号:S512.103.5 |
基金项目:国家杰出青年基金资助项目(49725102)和原西北农业大学青年教师基金资助项目 |
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Study on soil water characteristic curves of soils of same quality (heavy loam) |
SONG Xi-yue FANG Peng MA Ling-jian XI Ya-jun HU Yin-gang LIU Shu-dong HE Bei-ru
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Abstract: |
Soil water characteristic curve that is obtained from disturbed soil of different dry density and disturbed soil of different water treatment and farm intact soil is measured with the method of soil moisture pressure membrane.By comparing and analyzing soil water characteristic curves and relation curve of soil moisture content and relative aperture,it is found that the influence of dry density and water treatment and intact nature on soil water characteristic curve is obvious. |
Key words: soil water characteristic curve soil moisture suction relative aperture disturbed soil intact soil |