Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017WR021692 |
Soil Texture Often Exerts a Stronger Influence Than Precipitation on Mesoscale Soil Moisture Patterns | |
Dong, Jingnuo; Ochsner, Tyson E. | |
2018-03-01 | |
发表期刊 | WATER RESOURCES RESEARCH
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ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:3页码:2199-2211 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Soil moisture patterns are commonly thought to be dominated by land surface characteristics, such as soil texture, at small scales and by atmospheric processes, such as precipitation, at larger scales. However, a growing body of evidence challenges this conceptual model. We investigated the structural similarity and spatial correlations between mesoscale (approximate to 1-100 km) soil moisture patterns and land surface and atmospheric factors along a 150 km transect using 4 km multisensor precipitation data and a cosmic-ray neutron rover, with a 400 m diameter footprint. The rover was used to measure soil moisture along the transect 18 times over 13 months. Spatial structures of soil moisture, soil texture (sand content), and antecedent precipitation index (API) were characterized using autocorrelation functions and fitted with exponential models. Relative importance of land surface characteristics and atmospheric processes were compared using correlation coefficients (r) between soil moisture and sand content or API. The correlation lengths of soil moisture, sand content, and API ranged from 12-32 km, 13-20 km, and 14-45 km, respectively. Soil moisture was more strongly correlated with sand content (r=-0.536 to -0.704) than with API for all but one date. Thus, land surface characteristics exhibit coherent spatial patterns at scales up to 20 km, and those patterns often exert a stronger influence than do precipitation patterns on mesoscale spatial patterns of soil moisture. |
英文关键词 | cosmic-ray neutron multisensor precipitation SSURGO scaling |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430364900043 |
WOS关键词 | SPATIAL VARIABILITY ; WATER CONTENT ; OKLAHOMA MESONET ; NETWORKS ; CATCHMENTS ; NEXRAD ; PROBES |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/20843 |
专题 | 资源环境科学 |
作者单位 | Oklahoma State Univ, Dept Plant & Soil Sci, Stillwater, OK 74078 USA |
推荐引用方式 GB/T 7714 | Dong, Jingnuo,Ochsner, Tyson E.. Soil Texture Often Exerts a Stronger Influence Than Precipitation on Mesoscale Soil Moisture Patterns[J]. WATER RESOURCES RESEARCH,2018,54(3):2199-2211. |
APA | Dong, Jingnuo,&Ochsner, Tyson E..(2018).Soil Texture Often Exerts a Stronger Influence Than Precipitation on Mesoscale Soil Moisture Patterns.WATER RESOURCES RESEARCH,54(3),2199-2211. |
MLA | Dong, Jingnuo,et al."Soil Texture Often Exerts a Stronger Influence Than Precipitation on Mesoscale Soil Moisture Patterns".WATER RESOURCES RESEARCH 54.3(2018):2199-2211. |
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