Evaporation Process in Soil Surface Containing Calcic Nodules on the Northern Loess Plateau of China by Simulated Experiments

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科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

	Evaporation Process in Soil Surface Containing Calcic Nodules on the Northern Loess Plateau of China by Simulated Experiments
	Zhu, Yuanjun 3,4; Shao, Ming'an 3,4; Shao, Hongbo 1,2,3,4
刊名	CLEAN-SOIL AIR WATER
	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
ISSN号	1863-0650
通讯作者	Shao, HB, Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao 266042, Peoples R China
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
文献子类	Article
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.
学科主题	Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS关键词	ROCK FRAGMENTS ; BARE SOILS ; COVERS ; MODEL ; EVAPOTRANSPIRATION ; ADSORPTION ; TRANSPORT ; MOISTURE ; REGIONS ; SYSTEM
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
语种	英语
WOS记录号	WOS:000272479000011
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]
公开日期	2011-07-21
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/4404]
专题	烟台海岸带研究所_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.