| 摘要: |
| 利用实测资料,对比分析了不同质地土壤埋深为0 m时潜水的蒸发与大气蒸发能力间的关系，研究了地表蒸发系数的变化规律；进而根据不同埋深的潜水蒸发情况，提出了用土壤粘粒含量表示的潜水蒸发公式，并计算了不同土壤在不同潜水埋深时的潜水蒸发量。 |
| 关键词: 土壤质地 潜水蒸发 大气蒸发 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金重大计划项目(90102012)，黄土高原土壤侵蚀与旱地农业国家重点实验室资助项目(10501-98) |
|
| Study on phreatic evaporation under different soil textures |
|
|
| Abstract: |
| Phreatic evaporation is an important part of water cycle in field.Soil texture is the main factor that influences the water retention and conduction in soil.The relationship between phreatic evaporation,especially the phreatic evaporation of 0 m water table and atmospheric evaporation under different soil texture is analyzed.A simple phreatic evaporation formula is put forward,which can be used in field drainage,control and improvement of saline and alkali soil and compensation of ground water. |
| Key words: phreatic evaporation atmospheric evaporation soil texture |
