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| 聚丙烯酰胺(PAM)对不同土壤坡地水分养分迁移过程的影响 | |
| 引用本文： | 王辉,王全九,邵明安.聚丙烯酰胺(PAM)对不同土壤坡地水分养分迁移过程的影响[J].灌溉排水学报,2008,27(2):86-89. |
| 作者姓名： | 王辉 王全九 邵明安 |
| 作者单位： | 1. 湖南农业大学,工学院,长沙,410128;中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西,杨凌,712100 2. 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西,杨凌,712100;西安理工大学,水资源研究所,西安,710048 3. 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室,陕西,杨凌,712100;中国科学院,地理科学与资源研究所,北京,100101 |
| 基金项目： | 中国科学院"百人计划" , 国家自然科学基金 , 湖南农业大学校科研和教改项目 |
| 摘 要： | 采用室内人工降雨模拟试验,分析了小降雨强度下聚丙烯酰胺(PAM)对塿土和砂黄土坡面土壤水分养分迁移过程的影响。试验结果表明,与对照相比较,PAM处理降低坡地入渗速率,增大了地表径流量,砂黄土表现更显著,其径流系数提高了约113%;PAM对土壤硝态氮流失过程影响甚微,但对径流磷和钾的流失特征影响显著;施加PAM分别增加塿土坡地径流磷和径流钾流失量近55%和100%,分别提高了砂黄土坡地径流磷和径流钾流失量1.4倍和4.8倍。因此,水蚀环境不严重的黄土坡地,采用地表施加PAM方式来降低土壤养分流失的途径是不适宜的。 |
| 关 键 词： | 人工降雨 土壤质地 土壤养分 黄土坡面 聚丙烯酰胺(PAM) |
| 文章编号： | 1672-3317(2008)02-0086-04 |
| 修稿时间： | 2007年2月27日 |
Influence of Polyacrylamide on Transportation of Soil Water and Nutrients on the Sloped Land with Different Soils |
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| WANG Hui,WANG Quan-jiu,SHAO Ming-an.Influence of Polyacrylamide on Transportation of Soil Water and Nutrients on the Sloped Land with Different Soils[J].Journal of Irrigation and Drainage,2008,27(2):86-89. | |
| Authors: | WANG Hui WANG Quan-jiu SHAO Ming-an |
| Institution: | WANG Hui1,2,WANG Quan-jiu2,4,SHAO Ming-an2,3(1.College of Engineering , Technology,Hunan Agricultural University,Changsha 410128,China,2.State Key Laboratory of Soil Erosion , Dryl, Farming on the Loess Plateau,Institute of Water , Soil Conservation,Chinese Academy of Sciences , Ministry of Water Resource,Yangling 712100,3.Institute of Geographical Sciences , Natural Resources Research,CAS,Beijing 100101,4.Institute of Water Resource,Xi\'an University of Technology,Xi\'an 710048... |
| Abstract: | By the method of artificial rainfall simulated experiments,the influences of polyacrylamide(PAM)on the transportation processes of soil water and nutrients were conducted on the sloped loess land with clay loam soil and sandy soil at light rainfall.Results show that,as compared with check experiments,PAM use decreased the infiltration rate,and increased the surface runoff.In particular,PAM treatment had great improvement of surface runoff for the sloped land with sandy soil,and it's runoff coefficient had b... |
| Keywords: | simulated rainfall soil texture soil nutrients loess slope polyacrylamide(PAM) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |