IEECAS OpenIR  > 生态环境研究室
Specific-scale correlations between soil water content and relevant climate forcing factors across two climate zones
Zhao, Yali1,3,5; Wang, Yunqiang1,2,4,5,7; Zhang, Xingchang3,5; Wang, Li3,5; Hu, Wei6; Wang, Ting1
2020-06-01
发表期刊JOURNAL OF HYDROLOGY
ISSN0022-1694
卷号585页码:13
摘要

Soil water content (SWC) is determined through water exchanges between surface soil and the atmosphere, and changes in SWC will influence both energy conversions and water cycles. Being affected by different climate forcing factors (forcings), SWC is spatially and temporally variable, occurring at various intensities and scales. We compared scale-specific controls on SWC in a sub-humid and a semiarid climate zone based on a multivariate empirical mode decomposition (MEMD) method in conjunction with a multivariate dataset, including SWC (collected separately seven times within five soil layers to a depth of 500 cm) and eight measured climate forcing factors (i.e., precipitation, temperature, normalized differential vegetation index (NDVI), elevation, clay, silt, sand and soil organic carbon (SOC)). We also identified the percent variance of intrinsic mode functions (IMFs) and residuals relative to the original data. Two to three IMFs of SWC were further obtained in the two climate zones. IMFs explained the percent variance of SWC (79.3%), NDVI (77.3%), clay content (76.6%) and SOC (93.9%) to the original data in the sub-humid climate zone, while residuals from all environmental variables (except for SOC) yielded most of the total variance (55.5-93.2%) in the semiarid climate zone. Correlations between the two climate zones exhibited different IMF characteristics (scales) and different climatic conditions. Forcings of the two climate zones also played different roles in controlling SWC. Precipitation and temperature controlled large-scale SWC in both climate zones, namely, NDVI had an inverse effect on SWC between the two climate zones, SOC had a moderate and large-scale effect on SWC in the sub-humid climate zone and clay content had a comparatively critical effect on SWC in the semiarid climate zone. Scale-specific controls of soil properties on SWC were depth dependent in the sub-humid climate zone, while similar characteristics were obtained among the five soil layers in the semiarid climate zone. The specific scale dependence of SWC and relevant forcings were similar regardless of soil water condition (dry or wet). Our results offer insight into relationships between SWC and the main forcings of two different regional climate zones and their scale-dependent controls.

关键词Deep soil Scale dependence Climate zone Soil water content Multivariate empirical mode decomposition
DOI10.1016/j.jhydrol.2020.124800
关键词[WOS]MOISTURE SPATIAL VARIABILITY ; TEMPORAL STABILITY ; LOESS PLATEAU ; LAND-USE ; UNCERTAINTY PRINCIPLE ; DEPTH PERSISTENCE ; STORAGE ; PATTERNS ; PRECIPITATION ; TRANSECT
收录类别SCI
语种英语
资助项目National Key Research and Development Program of China[2019YFA0607303] ; National Natural Science Foundation of China[41530854] ; National Natural Science Foundation of China[41722106] ; Youth Innovation Promotion Association, CAS
WOS研究方向Engineering ; Geology ; Water Resources
项目资助者National Key Research and Development Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association, CAS
WOS类目Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号WOS:000544230000058
出版者ELSEVIER
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/15029
专题生态环境研究室
第四纪科学与全球变化卓越创新中心
通讯作者Wang, Yunqiang
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China
2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
4.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing 100875, Peoples R China
5.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China
6.New Zealand Inst Plant & Food Res Ltd, Private Bag 4704, Christchurch 8140, New Zealand
7.Xi An Jiao Tong Univ, Dept Earth & Environm Sci, Xian 710049, Peoples R China
推荐引用方式
GB/T 7714
Zhao, Yali,Wang, Yunqiang,Zhang, Xingchang,et al. Specific-scale correlations between soil water content and relevant climate forcing factors across two climate zones[J]. JOURNAL OF HYDROLOGY,2020,585:13.
APA Zhao, Yali,Wang, Yunqiang,Zhang, Xingchang,Wang, Li,Hu, Wei,&Wang, Ting.(2020).Specific-scale correlations between soil water content and relevant climate forcing factors across two climate zones.JOURNAL OF HYDROLOGY,585,13.
MLA Zhao, Yali,et al."Specific-scale correlations between soil water content and relevant climate forcing factors across two climate zones".JOURNAL OF HYDROLOGY 585(2020):13.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhao, Yali]的文章
[Wang, Yunqiang]的文章
[Zhang, Xingchang]的文章
百度学术
百度学术中相似的文章
[Zhao, Yali]的文章
[Wang, Yunqiang]的文章
[Zhang, Xingchang]的文章
必应学术
必应学术中相似的文章
[Zhao, Yali]的文章
[Wang, Yunqiang]的文章
[Zhang, Xingchang]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。