| 活性炭对农田土壤孔隙结构的影响 |
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| 引用本文： | 丁奠元,赵英,方圆,冯浩.活性炭对农田土壤孔隙结构的影响[J].干旱地区农业研究,2018,36(1):36-42. |
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| 作者姓名： | 丁奠元 赵英 方圆 冯浩 |
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| 作者单位： | 扬州大学水利与能源动力工程学院;西北农林科技大学中国旱区节水农业研究院;西北农林科技大学资源环境学院;中国科学院水利部水土保持研究所; |
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| 基金项目： | 国家863计划项目（2013AA102904）；黄土高原土壤侵蚀与旱地农业国家重点实验室主任基金（K318009902-1427）；“111”项目（B12007） |
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| 摘 要： | 分析了农田土壤中施用不同用量活性炭(活性炭用量分别占土壤质量的0、0.1%、0.3%、0.6%、0.9%和1.2%)对土壤总孔隙的影响,及其随着时间(0、30、60 d和90 d)的变化;利用DE双指数模型计算了土壤毛管度和非毛管孔隙度,定量评价了活性炭对土壤不同大小等级孔隙状况的影响。结果表明:活性炭对土壤的毛管孔隙影响不大,主要增加了土壤的非毛管孔隙,培养90 d时,相比对照处理,活性炭处理(从低到高)的土壤非毛管孔隙度分别增加5.8%、2.5%、8.7%、9.1%和14.7%;活性炭处理减小了土壤容重,增大了土壤总孔隙度,培养90 d时,活性炭处理(从低到高)的总孔隙度比对照处理分别增加1.9%、1.8%、2.3%、2.7%和4.3%;活性炭处理显著减小了土壤毛管孔隙孔径(P0.05),而显著增大了土壤非毛管孔隙孔径(P0.05)。活性炭对土壤孔隙的影响随着时间的延长越来越明显,这可能主要与活性炭自身特性和添加活性炭所引起的有机质和微生物变化有关。
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| 关 键 词： | 活性炭 土壤孔隙结构 双指数土壤水分特征曲线模型 毛管孔隙 非毛管孔隙 |
Effect of addition of activated carbon on soil pore structure |
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| DING Dian-yuan,ZHAO Ying,FANG Yuan,FENG Hao.Effect of addition of activated carbon on soil pore structure[J].Agricultural Research in the Arid Areas,2018,36(1):36-42. |
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| Authors: | DING Dian-yuan ZHAO Ying FANG Yuan FENG Hao |
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| Institution: | School of hydraulic energy and power engineering, Yangzhou University, Yangzhou 225009, China; Institute of Water Saving Agriculture in Arid Areas of China, Northwest Agricultural and Forest University, Yangling 712100, China,Institute of Water Saving Agriculture in Arid Areas of China, Northwest Agricultural and Forest University, Yangling 712100, China; College of Natural Resources and Environment, Northwest Agriculture and Forestry University, Yangling712100, China,Institute of Water Saving Agriculture in Arid Areas of China, Northwest Agricultural and Forest University, Yangling 712100, China and Institute of Water Saving Agriculture in Arid Areas of China, Northwest Agricultural and Forest University, Yangling 712100, China; Institute of Water and Soil Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China |
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| Abstract: | |
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| Keywords: | activated carbon soil pore structure double-exponential water retention equation soil capillary pore soil non-capillary pore |
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