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| 2种高分子保水材料对土壤持水能力的影响 | |
| 引用本文： | 庄文化,冯浩,吴普特,宁荣昌,史竹叶. 2种高分子保水材料对土壤持水能力的影响[J]. 中国水土保持科学, 2008, 6(3): 81-87 |
| 作者姓名： | 庄文化 冯浩 吴普特 宁荣昌 史竹叶 |
| 作者单位： | 1. 中国科学院,水利部,水土保持与生态环境研究中心,712100,陕西杨凌;西北农林科技大学水土保持研究所,712100,陕西杨凌;中国科学院研究生院,100049,北京 2. 中国科学院,水利部,水土保持与生态环境研究中心,712100,陕西杨凌;西北农林科技大学水土保持研究所,712100,陕西杨凌 3. 西北工业大学,710072,西安 |
| 基金项目： | 国家高技术研究发展计划(863计划) , 教育部跨世纪优秀人才培养计划 |
| 摘 要： | 采用离心机法，研究聚丙烯酸钠与聚丙烯酰胺2种高分子化合物在5种使用浓度（占干土质量0、0．01％、0．08％、0．2％与1％）的条件下对3种土壤（砂土、壤土、黏土）持水能力的影响。结果表明：3种土壤在0．01—1．5MPa水吸力时，持水能力随着2种高分子材料用量的增加而增加，砂土的作用效果较壤土、黏土更显著；2种高分子材料与土壤质量比控制在8／10000～2／1000范围内其作用效果较好，该用量条件下高分子吸持水分平均可释放83．7％供植物吸收利用。2种高分子材料对土壤持水能力的作用效果基本相同。 |
| 关 键 词： | 持水能力 高分子保水材料 土壤 水吸力 有效性 |
| 修稿时间： | 2007-08-15 |
Effects of two super absorbent polymers on water retention capacity of soil |
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| Zhuang Wenhua,Feng Hao,Wu Pute,Ning Rongchang,Shi Zhuye. Effects of two super absorbent polymers on water retention capacity of soil[J]. Science of Soil and Water Conservation, 2008, 6(3): 81-87 | |
| Authors: | Zhuang Wenhua Feng Hao Wu Pute Ning Rongchang Shi Zhuye |
| Affiliation: | Zhuang Wenhua1,2,3,Feng Hao1,Wu Pute1,Ning Rongchang4,Shi Zhuye1,2 (1.Institute of Soil , Water Conservation,MWR&CAS,2.Institute of Soil , Water Conservation,Northwest A&F University of Agriculture , Forestry:712100,Yangling,Shaanxi,3.Graduate University of Chinese Academy of Sciences,100049,Beijing,4.Northwest Institute of Technology Xi'an,710072,Xi'an:China) |
| Abstract: | The effects of two super absorbent polymers,Sodium Polyacrylate(SP) and Polyacrylamide(PAM),on water retention capacity of sand,loam,and clay were evaluated by using centrifugal method.Five concentrations of these polymers,0,0.01%,0.08%,0.2%,and 1%(on dry weight basis),were added to these three soils.The results show that the amount of water retained by the soil at each suction over the range of 0.01 MPa to 1.5 MPa significantly increased with the increasing of the two polymers;The effects on sand were more... |
| Keywords: | water retention capacity super absorbent polymer soil water suction availability |
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