Effect of Caliche Nodules on Soil Water Storage in the Northern Loess Plateau of China

doi:10.1002/clen.201800385

	Effect of Caliche Nodules on Soil Water Storage in the Northern Loess Plateau of China
	Gong, Tiexiong 3,4,5; Zhu, Yuanjun 3,4,5; Wang, Yunqiang 1; Hu, Wei 6; Shao, Ming'an 2,3,4,5
刊名	CLEAN-SOIL AIR WATER
	2019-07-01
卷号	47 期号:7 页码:8
关键词	available caliche nodule water storage caliche nodules caliche nodule water storage Loess plateau soil water storage
ISSN号	1863-0650
DOI	10.1002/clen.201800385
通讯作者	Zhu, Yuanjun(zhuyuanjun@foxmail.com)
英文摘要	Knowledge of water absorbed by caliche nodules is important for accurate soil water estimation. Simulated soil column experiments are used to investigate the effects of caliche nodules on soil profile water distribution and soil water estimation under given water supply conditions. The results indicate that for the treatments with five caliche nodules contents (CNC = 0, 10, 20, 30, and 40%), except for the top 0-0.1m soil layer, the soil water content (SWC) of other layers is significantly different between the treatments (P< 0.05). The SWC is positively correlated to CNC. There are significant differences (P< 0.05) in caliche nodule water content (CWC) in the top three soil layers for all treatments. For soils with less than 10% caliche nodules, the soil water storage (SWS) in deeper soil layer (0.3-0.4 m) is significantly higher than that in surface soil layers (P< 0.05). Caliche nodule water storage (CWS) and available caliche nodule water storage (ACWS) both increase with increasing CNC. Water storage in the caliche nodules increases with the increase in CNC. There are significant differences in ACWS among soil layers in all soils (P< 0.05). The total ACWS significantly increases with the increase in CNC (P< 0.01). If water is absorbed by caliche nodules, then the total water storage of soils with CNCs of 10, 20, 30, and 40% would be underestimated by 3, 8, 10, and 17%, respectively. This study contributes to accurate soil water estimation in soils with caliche nodules and provide a scientific basis for rational utilization of soil and water resources.
资助项目	National Natural Science Foundation of China[41371242] ; National Natural Science Foundation of China[41530854] ; National Key Project for Research and Development[2016YFC0501706]
WOS关键词	WEATHERED GRANITIC BEDROCK ; ROCK FRAGMENT COVER ; HYDRAULIC CONDUCTIVITY ; SPATIAL-DISTRIBUTION ; TEMPORAL STABILITY ; STONY SOILS ; HOLDING CHARACTERISTICS ; LABORATORY EXPERIMENT ; PREFERENTIAL FLOW ; SURFACE
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
语种	英语
出版者	WILEY
WOS记录号	WOS:000486776900003
资助机构	National Natural Science Foundation of China ; National Key Project for Research and Development
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/13348]
专题	地球环境研究所_生态环境研究室
通讯作者	Zhu, Yuanjun
作者单位	1.Chinese Acad Sci, Inst Earth Environm, Xian, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 5.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China 6.New Zealand Inst Plant & Food Res Ltd, Christchurch, New Zealand
推荐引用方式 GB/T 7714	Gong, Tiexiong,Zhu, Yuanjun,Wang, Yunqiang,et al. Effect of Caliche Nodules on Soil Water Storage in the Northern Loess Plateau of China[J]. CLEAN-SOIL AIR WATER,2019,47(7):8.
APA	Gong, Tiexiong,Zhu, Yuanjun,Wang, Yunqiang,Hu, Wei,&Shao, Ming'an.(2019).Effect of Caliche Nodules on Soil Water Storage in the Northern Loess Plateau of China.CLEAN-SOIL AIR WATER,47(7),8.
MLA	Gong, Tiexiong,et al."Effect of Caliche Nodules on Soil Water Storage in the Northern Loess Plateau of China".CLEAN-SOIL AIR WATER 47.7(2019):8.