中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Comparison of soil hydraulic properties with different levels of soil salinity and sodicity

文献类型:期刊论文

作者Liu Yingying1; She Dongli1,2; Gao Xuemei1; Wang Peng1; Xu Wentao1; Liu Yi3
刊名ARABIAN JOURNAL OF GEOSCIENCES
出版日期2015-08-01
卷号8期号:8页码:5351-5360
关键词Disc permeameter Salt content Negative pressure hydraulic head Soil hydraulic properties
ISSN号1866-7511
DOI10.1007/s12517-014-1514-8
英文摘要Increases in soil salinity and/or sodicity are degrading soils worldwide. To address the problem, more information is needed about the effects of salinity and sodicity on soil hydraulic properties, as well as on the relative effects of other interacting soil properties. In this study, tests were conducted using an infiltrometer with negative hydraulic heads (0, -3, -6, and -9 cm) to compare the soil hydraulic properties of two kinds of soils (soil 1: a sullage-puddle silt soil collected from a coastal reclamation region in China; soil 2: a yellow brown soil collected from a water-saving area) with different soil salt contents. The results showed that with increasing soil salt content, the parameters including the steady infiltration rate, sorptivity, and the unsaturated hydraulic conductivity decreased with decreasing negative heads for soil 2. As the soil salt contents decreased for soil 2, the contribution of fine pores (< 0.1 mm) to water flow increased, while that of macropores (> 0.5 mm) decreased. Soil salt content had no significant effects on the hydraulic conductivity of soil 1 due to its very poor soil structure that the salt could not make significantly worse. Soil texture played a major role in determining whether soil salt contents would significantly affect hydraulic properties.
资助项目National Nature Science Foundation of China[51109063] ; State Key Laboratory of Soil and Sustainable Agriculture (Institute of Soil Science, Chinese Academy of Sciences)[Y412201423]
WOS研究方向Geology
语种英语
WOS记录号WOS:000360068200006
出版者SPRINGER HEIDELBERG
源URL[http://202.127.146.157/handle/2RYDP1HH/224]  
专题中国科学院武汉植物园
通讯作者She Dongli
作者单位1.Hohai Univ, Key Lab Efficient Irrigat Drainage & Agr Soil Wat, Coll Water Conservancy & Hydropower Engn, Minist Educ, Nanjing 210098, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China
3.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China
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GB/T 7714
Liu Yingying,She Dongli,Gao Xuemei,et al. Comparison of soil hydraulic properties with different levels of soil salinity and sodicity[J]. ARABIAN JOURNAL OF GEOSCIENCES,2015,8(8):5351-5360.
APA Liu Yingying,She Dongli,Gao Xuemei,Wang Peng,Xu Wentao,&Liu Yi.(2015).Comparison of soil hydraulic properties with different levels of soil salinity and sodicity.ARABIAN JOURNAL OF GEOSCIENCES,8(8),5351-5360.
MLA Liu Yingying,et al."Comparison of soil hydraulic properties with different levels of soil salinity and sodicity".ARABIAN JOURNAL OF GEOSCIENCES 8.8(2015):5351-5360.

入库方式: OAI收割

来源:武汉植物园

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