globalchange  > 全球变化的国际研究计划
DOI: 10.1038/s41598-019-49278-8
WOS记录号: WOS:000484656700016
论文题名:
A Granger causality analysis of groundwater patterns over a half-century
作者: Singh, Nitin K.; Borrok, David M.
通讯作者: Singh, Nitin K.
刊名: SCIENTIFIC REPORTS
ISSN: 2045-2322
出版年: 2019
卷: 9
语种: 英语
WOS关键词: AQUIFER SYSTEM ; CLIMATE-CHANGE ; LEVEL TRENDS ; DEPLETION ; IRRIGATION ; LOUISIANA ; INFERENCE ; MODELS ; TESTS ; FOOD
WOS学科分类: Multidisciplinary Sciences
WOS研究方向: Science & Technology - Other Topics
英文摘要:

Groundwater depletion in many areas of the world has been broadly attributed to irrigation. However, more formal, data-driven, causal mechanisms of long-term groundwater patterns have not been assessed. Here, we conducted the first Granger causality analysis to identify the "causes" of groundwater patterns using the rice-producing parishes of Louisiana, USA, as an example. Trend analysis showed a decline of up to 6 m in groundwater level over 51 years. We found that no single cause explained groundwater patterns for all parishes. Causal linkages were noted between groundwater and area harvested, number of irrigation wells, summer precipitation totals, and drought. Bi-directional linkages were noted between groundwater and rice yield, suggesting feedback between both time series. Causal linkages were absent between groundwater and many drivers where significant correlations were noted, highlighting the importance of using robust causal relationships over illusive correlations to detect the cause. These results advance our understanding of groundwater dynamics and can reveal a key connection between food and groundwater.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/146789
Appears in Collections:全球变化的国际研究计划

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作者单位: Missouri Univ Sci & Technol, Geosci & Geol & Petr Engn, Rolla, MO 65409 USA

Recommended Citation:
Singh, Nitin K.,Borrok, David M.. A Granger causality analysis of groundwater patterns over a half-century[J]. SCIENTIFIC REPORTS,2019-01-01,9
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