| 短期免耕对黑土孔隙度的影响 |
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| 引用本文： | 李文凤,范如芹,张晓平,梁爱珍,时秀焕,申艳,杨学明.短期免耕对黑土孔隙度的影响[J].农业系统科学与综合研究,2010,26(4):458-462. |
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| 作者姓名： | 李文凤 范如芹 张晓平 梁爱珍 时秀焕 申艳 杨学明 |
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| 作者单位： | [1]中国科学院东北地理与农业生态研究所,吉林长春130012 [2]中国科学院研究生院,北京100049 [3]加拿大农业与农业食品部Harrow研究中心,加拿大安大略NOR1GO |
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| 基金项目： | 国家自然科学基金资助项目，国家科技支撑项目 |
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| 摘 要： | 对短期玉米免耕和秋翻处理对耕层黑土孔隙度的影响进行了分析。结果表明,耕作处理对土壤孔隙度影响较大,毛管孔隙和贮存孔隙在整个剖面内免耕均小于秋翻,但秋翻处理下的中小孔隙占有很大比例。两个处理之间的大孔隙数量相差很小,多在3%～8%之间。秋翻总孔隙度表现出表层和底层差异很大,而免耕孔隙分布相对均匀,且上下孔隙连通性较好。
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| 关 键 词： | 免耕 秋翻 黑土 孔隙度 |
Effects of Short-term No-tillage on Soil Porosity in Black Soil |
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| LI Wen-feng,FAN Ru-qin,ZHANG Xiao-ping,LIANG Ai-zhen,SHI Xiu-huan,SHEN Yan,YANG Xue-ming.Effects of Short-term No-tillage on Soil Porosity in Black Soil[J].System Sciemces and Comprehensive Studies In Agriculture,2010,26(4):458-462. |
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| Authors: | LI Wen-feng FAN Ru-qin ZHANG Xiao-ping LIANG Ai-zhen SHI Xiu-huan SHEN Yan YANG Xue-ming |
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| Institution: | 1.Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Changchun 130012,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;3.Greenhouse and Processing Crops Research Centre,Agriculture ＆ Agri-Food Canada,Ontario,N0R 1G0,Canada) |
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| Abstract: | Studied on the effects of Short-term no-tillage （NT） and moldboard plow （MP） on Black soil porosity.The results showed that tillage treatments influenced soil porosity significantly.Both capillary pores and storing pores of NT were smaller than that of MP in the soil profile,but the small and medium pores of MP had a large proportion.There were little differences in proportion of large pores,ranging from 3% to 8%,between NT and MP.The total porosity of MP showed a significant difference from surface layer to the bottom,while the pore distribution of NT was homogeneously and connectively. |
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| Keywords: | no-tillage black soil porosity |
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