| 活性炭对土壤入渗、蒸发特性及养分淋溶损失的影响 |
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| 引用本文： | 方圆,冯浩,操信春,丁奠元.活性炭对土壤入渗、蒸发特性及养分淋溶损失的影响[J].水土保持学报,2011,25(6):23-26. |
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| 作者姓名： | 方圆 冯浩 操信春 丁奠元 |
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| 作者单位： | 1. 西北农林科技大学水利与建筑工程学院,陕西,杨凌,712100;西北农林科技大学中国旱区节水农业研究院,陕西,杨凌,712100
2. 西北农林科技大学水利与建筑工程学院,陕西,杨凌,712100;西北农林科技大学中国旱区节水农业研究院,陕西,杨凌,712100;中国科学院水利部水土保持研究所,陕西,杨凌,712100 |
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| 基金项目： | 国家“十二五”863计划课题(2011AA100503); 中央高校基本科研业务费专项资金 |
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| 摘 要： | 通过室内土柱模拟试验,设置活性发质量分数为0%(对照),0.1%,0.3%,0.6%,0.9%及1.2%共6个处理,研究不同活性炭施入量对土壤入渗、蒸发特性及养分淋溶损失的影响.结果显示:随着活性炭用量的增加,土壤入渗能力先增强后减弱;100 min时,施加0.3%活性炭的土壤累积入渗量达到最大,高于对照的10.60%,而施加1.2%活性炭的土壤累积入渗量较对照的减少5.70%;33 d的土壤累积蒸发量随着活性炭施用量的增大而逐渐减小,与对照的相比最大减小量达21.35%;土壤淋溶液中硝态氮(NO3-)、土壤可溶性有机碳(DOC)的浓度随活性炭用量增大而减小,与对照的相比最大减小量分别为8.52%和47.11%.活性炭的施加对提高旱区农田蓄水保肥能力有重要意义.
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| 关 键 词： | 活性炭 土壤 入渗 蒸发 养分淋溶 |
Influence of Active Carbon on Soil Infiltration and Evaporation Characteristics and Nutrient Leaching Loss |
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| FANG Yuan,FENG Hao,CAO Xin-chun,DING Dian-yuan.Influence of Active Carbon on Soil Infiltration and Evaporation Characteristics and Nutrient Leaching Loss[J].Journal of Soil and Water Conservation,2011,25(6):23-26. |
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| Authors: | FANG Yuan FENG Hao CAO Xin-chun DING Dian-yuan |
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| Institution: | FANG Yuan1,2,FENG Hao1,3,CAO Xin-chun1,DING Dian-yuan1,2(1.College of Water Resource and Architectural Engineering,Northwest Agriculture and Forestry University,Yangling,Shaanxi 712100,2.Institute of Water Saving Agriculture in Arid Areas of China,3.Water and Soil Conservation Research Institute,China Academy of Sciences and Ministry of Water Resources,Shaanxi 712100) |
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| Abstract: | Soil columns experiment was used to investigate the effects of active carbon application on soil infiltration,evaporation characteristics and leaching loss of nutrients.There were six treatments with different active carbon's contents:0%(the control treatment),0.1%,0.3%,0.6%,0.9% and 1.2%.The results showed that:Along with the increase of active carbon application,the soil infiltration increased to a certain degree and then declined.After 100 minutes infiltration,the highest and lowest cumulative infiltrati... |
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| Keywords: | active carbon soil infiltration evaporation nutrient leaching |
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