Study on temporal stability of soil moisture of gravel-mulched field

doi:10.16058/j.issn.1005-0930.2015.06.017

	Study on temporal stability of soil moisture of gravel-mulched field
	Zhao, Wenju; Li, Xiaoping; Fan, Yanwei; Yu, Wen; Tang, Xuefen
刊名	Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering
	2015-12-01
卷号	23 期号:6 页码:1245-1253
关键词	Gravel Least squares approximations Regression analysis Soil moisture Stability Correlation coefficient Least square methods Relative deviations Spatial distribution patterns Spearman rank correlation Statistical regression analysis Temporal stability The mean relative difference
ISSN号	10050930
DOI	10.16058/j.issn.1005-0930.2015.06.017
英文摘要	Study temporal stability of soil moisture can obtain accurate and reliable tempo-spatial distribution patterns of soil moisture. Regarded gravel-sand mulched field in northwestern arid area with history of more than 300 years as the research object. The average relative deviation, Spearman rank correlation coefficient were used to study the temporal stability of soil moisture of gravel-mulched field in region of northwest Jingtai. The results show that only a few time points belong to weak variation of soil moisture of bare land (CK), new gravel-mulched field (NGM), middle gravel-mulched field (MGM), old gravel-mulched field (OGM), others belong to medium variation. The average relative (-14.81%-12.84%) and the standard deviation (0.78%-18.99%) vary in a narrow range, we can choose the representative measuring point 39, point 42, point 10 and point 4 to represent the estimation average soil moisture of bare land, NGM, MGM, OGM. Spearman rank correlation coefficient and significance level were high. Statistical regression analysis of represent points soil moisture and average soil moisture with least square method showed that the correlation coefficient lay between 0.8640-0.9973, standard error and average deviation were smaller. To provide a theoretical basis for monitoring points of soil moisture in the area reasonable layout, implement accurately forecast of soil moisture. © 2015, Editorial Board of Journal of Basic Science and Engineering. All right reserved.
语种	中文
出版者	Editorial Board of Journal of Basic Science and
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112386]
专题	能源与动力工程学院新能源学院
作者单位	School of Energy and Power Engineering, Lanzhou University of Technology, Gansu; 730050, China
推荐引用方式 GB/T 7714	Zhao, Wenju,Li, Xiaoping,Fan, Yanwei,et al. Study on temporal stability of soil moisture of gravel-mulched field[J]. Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering,2015,23(6):1245-1253.
APA	Zhao, Wenju,Li, Xiaoping,Fan, Yanwei,Yu, Wen,&Tang, Xuefen.(2015).Study on temporal stability of soil moisture of gravel-mulched field.Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering,23(6),1245-1253.
MLA	Zhao, Wenju,et al."Study on temporal stability of soil moisture of gravel-mulched field".Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering 23.6(2015):1245-1253.