Evaporation Process in Soil Surface Containing Calcic Nodules on the Northern Loess Plateau of China by Simulated Experiments
Zhu, Yuanjun3,4; Shao, Ming'an3,4; Shao, Hongbo1,2,3,4
发表期刊CLEAN-SOIL AIR WATER
ISSN1863-0650
2009-11-01
卷号37期号:11页码:866-871
关键词Calcic Nodules Northern Loess Plateau Of China Soil Evaporation Soil Surface Soil Water Cycle Water Absorption And Balance
产权排序[Shao, Hongbo] Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China; [Shao, Hongbo] Chinese Acad Sci, Yantai Inst Costal Zone Res Sustainable Dev, Yantai, Peoples R China; [Zhu, Yuanjun; Shao, Ming'an; Shao, Hongbo] Chinese Acad Sci, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling, Peoples R China; [Zhu, Yuanjun; Shao, Ming'an; Shao, Hongbo] NW A&F Univ, Minist Water Resources, Yangling, Peoples R China
通讯作者 Shao, HB, Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China
作者部门滨海湿地实验室
英文摘要Soil containing calcic nodules is widely present on the northern Loess Plateau of China owing to soil genesis under local climate conditions. In most studies, little attention is payed to the effect of calcic nodules on soil evaporation and ecoenvironment, resulting in inaccurate evaporation estimation in this kind of soil and further improper field water management measures and irrigation effects. In this paper, soil column experiments were conducted in order to investigate evaporation process in soil containing calcic nodules and the effect of calcic nodules on soil evaporation was determined. The results indicated that evaporation reduction was positively related to calcic nodule content (CNC = mass of calcic nodules/total mass), and could be estimated by the experiential equation: Esoil = E0 (1 – 0.4 CNC) (Esoil = actual evaporation, E0 = theory evaporation in soil without calcic nodules). When CNC was below 0.2, the impact could be neglected. While, as CNC exceeded 0.2, the impact needed to be considered during soil evaporation estimation. As CNC reached 0.5, soil evaporation could be reduced by 7.5 mm, accounting for around 10% of the total soil water. Water balance calculation in soil columns showed that water absorbed by calcic nodules was partially available to evaporation. Water available to evaporation was positively related to CNC, and this water could not exceed 63% of the water absorbed by calcic nodules. Generally, evaporation behavior was dominated by calcic nodule quantity and its water absorption. These results provide new ideas for irrigation measures in arid areas of the globe.; Soil containing calcic nodules is widely present on the northern Loess Plateau of China owing to soil genesis under local climate conditions. In most studies, little attention is payed to the effect of calcic nodules on soil evaporation and ecoenvironment, resulting in inaccurate evaporation estimation in this kind of soil and further improper field water management measures and irrigation effects. In this paper, soil column experiments were conducted in order to investigate evaporation process in soil containing calcic nodules and the effect of calcic nodules on soil evaporation was determined. The results indicated that evaporation reduction was positively related to calcic nodule content (CNC = mass of calcic nodules/total mass), and could be estimated by the experiential equation: E(soil) = E(0) (1 - 0.4 CNC) (E(soil) = actual evaporation, E(0) = theory evaporation in soil without calcic nodules). When CNC was below 0.2, the impact could be neglected. While, as CNC exceeded 0.2, the impact needed to be considered during soil evaporation estimation. As CNC reached 0.5, soil evaporation could be reduced by 7.5 mm, accounting for around 10% of the total soil water. Water balance calculation in soil columns showed that water absorbed by calcic nodules was partially available to evaporation. Water available to evaporation was positively related to CNC, and this water could not exceed 63% of the water absorbed by calcic nodules. Generally, evaporation behavior was dominated by calcic nodule quantity and its water absorption. These results provide new ideas for irrigation measures in arid areas of the globe.
文章类型Article
资助机构National Natural Science Foundation of China [40801104, 90502006]; West Light Foundation of the Chinese Academy of Sciences ; Education Ministry of China ; Northwest AF University ; Chinese Academy of Sciences ; Scientific Foundation of Northwest AF University [01140406]
收录类别SCI
语种英语
关键词[WOS]ROCK FRAGMENTS ; BARE SOILS ; COVERS ; MODEL ; EVAPOTRANSPIRATION ; ADSORPTION ; TRANSPORT ; MOISTURE ; REGIONS ; SYSTEM
研究领域[WOS]Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
WOS记录号WOS:000272479000011
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/4403
专题中国科学院海岸带环境过程与生态修复重点实验室_滨海湿地实验室
作者单位1.Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China
2.Chinese Acad Sci, Yantai Inst Costal Zone Res Sustainable Dev, Yantai, Peoples R China
3.Chinese Acad Sci, State Key Lab Soil Eros & Dryland Farming Loess P, Inst Soil & Water Conservat, Yangling, Peoples R China
4.NW A&F Univ, Minist Water Resources, Yangling, Peoples R China
推荐引用方式
GB/T 7714
Zhu, Yuanjun,Shao, Ming'an,Shao, Hongbo. Evaporation Process in Soil Surface Containing Calcic Nodules on the Northern Loess Plateau of China by Simulated Experiments[J]. CLEAN-SOIL AIR WATER,2009,37(11):866-871.
APA Zhu, Yuanjun,Shao, Ming'an,&Shao, Hongbo.(2009).Evaporation Process in Soil Surface Containing Calcic Nodules on the Northern Loess Plateau of China by Simulated Experiments.CLEAN-SOIL AIR WATER,37(11),866-871.
MLA Zhu, Yuanjun,et al."Evaporation Process in Soil Surface Containing Calcic Nodules on the Northern Loess Plateau of China by Simulated Experiments".CLEAN-SOIL AIR WATER 37.11(2009):866-871.
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