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The impact of heating on the hydraulic properties of soils sampled under different plant cover

文献类型:期刊论文

作者Novak, Viliam1; Lichner, L'ubomir1; Zhang, Bin2; Knava, Karol1
刊名BIOLOGIA
出版日期2009-06-01
卷号64期号:3页码:483-486
关键词hydraulic conductivity retention curve soil water repellency
ISSN号0006-3088
DOI10.2478/s11756-009-0099-2
通讯作者Novak, Viliam(novak@uh.savba.sk)
英文摘要The impact of heating on the peristence of water repellency, saturated hydraulic conductivity, and water retention characteristics was examined on soils from both forest and meadow sites in southwest Slovakia shortly after a wet spell. The top 5 cm of meadow soils had an initial water drop penetration time WDPT at 20A degrees C of 457 s, whereas WDPT in the pine forest was 315 s for the top 5 cm and 982 s if only the top 1 cm was measured. Heating soils at selected temperatures of 50, 100, 150, 200, 250 and 300A degrees C caused a marked drop in water drop penetration time WDPT from the initial value at 20A degrees C. However, samples collected in different years and following an imposed cycle of wetting and drying showed much different trends, with WDPT sometimes initially increasing with temperature, followed by a drop after 200-300A degrees C. The impact of heating temperature on the saturated hydraulic conductivity of soil was small. It was found for both the drying and wetting branches of soil water retention curves that an increase in soil water repellency resulted in a drop in soil water content at the same matric potential. The persistence of soil water repellency was strongly influenced by both the sampling site and time of sampling, as it was characterized by the results of WDPT tests.
收录类别SCI ; ISTP
WOS关键词WATER REPELLENT SOILS ; FOREST SOILS ; SANDS ; FIRE ; CLAY ; FLOW
WOS研究方向Life Sciences & Biomedicine - Other Topics
WOS类目Biology
语种英语
WOS记录号WOS:000265939800015
出版者VERSITA
URI标识http://www.irgrid.ac.cn/handle/1471x/2558767
专题南京土壤研究所
通讯作者Novak, Viliam
作者单位1.Slovak Acad Sci, Inst Hydrol, SK-83102 Bratislava, Slovakia
2.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714
Novak, Viliam,Lichner, L'ubomir,Zhang, Bin,et al. The impact of heating on the hydraulic properties of soils sampled under different plant cover[J]. BIOLOGIA,2009,64(3):483-486.
APA Novak, Viliam,Lichner, L'ubomir,Zhang, Bin,&Knava, Karol.(2009).The impact of heating on the hydraulic properties of soils sampled under different plant cover.BIOLOGIA,64(3),483-486.
MLA Novak, Viliam,et al."The impact of heating on the hydraulic properties of soils sampled under different plant cover".BIOLOGIA 64.3(2009):483-486.

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来源:南京土壤研究所

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