| 保水剂对土壤水分蒸发的影响研究 |
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| 引用本文： | 马生丽,孙凡,汪亚峰. 保水剂对土壤水分蒸发的影响研究[J]. 渝西学院学报(自然科学版), 2012, 0(3): 62-66 |
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| 作者姓名： | 马生丽 孙凡 汪亚峰 |
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| 作者单位： | [1]西南大学资源环境学院,重庆北碚400716 [2]中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京海淀100085 |
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| 摘 要： | 研究在不同温度梯度下保水剂的粒径和用量对土壤水分蒸发的影响．结果表明：土壤水分蒸发前期保水剂粒径小则保水效果较好，保水剂用量越高则土壤水分稳定蒸发阶段时间长．25℃时土壤水分蒸发率会出现波动现象；保水剂粒径大（0．8—2mm）时，保水剂用量小会加速土壤水分的蒸发．
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| 关 键 词： | 保水剂 土壤水分 土壤水分蒸发 |
Study on the effect of water - retaining agent on soil water evaporation |
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| Affiliation: | MA Sheng - li , SUN Fan , WANG Ya - feng ( 1. College of Resources and Environments, Southwest China University, Beibei Chongqing 400716, China; 2. Key Laboratories of City and Regional Ecological National, Research Center for EcoEnvironmental Sciences, Chinese Academy of Sciences, Haidian Beijing 100085, China) |
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| Abstract: | This paper mainly studies the size and amount of water - retaining agent in different temperature gradient on soil moisture to evaporate under the influence. Research results show： pre -evaporation of soil moisture retention agent with a small particle size performs better, and with higher amount of insurance agent used more time is consumed in stable soil water evaporation stage. At 25 ℃ there will be fluctuation with the soil moisture evaporation rate; For large aquasorb size （0.8 ~ 2 mm）, the small amount of insurance agent will speed up soil moisture evaporation. |
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| Keywords: | water - retaining agent soil moisture evaporation of soil moisture |
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