Abstract
Purpose
Inconsistent controlling factors of soil water content (SWC) spatial variation across regions and spatial scales have been acknowledged in previous studies. However, universal principles explaining these inconsistencies are still needed to be explored. The main aim of this study was to conclude the universal principles across regions and scales.
Materials and methods
In this study, based on the surface (< 10-cm soil depth) SWC dataset from Meng et al. (2021) (https://doi.org/10.5194/essd-13-3239-2021) and the relevant environmental variables (climate including temperature and precipitation, topography including elevation and slope, soil including sand and clay contents, and vegetation including normalized difference vegetation index or NDVI) in a 1500 km × 1500 km study region in China, we calculated the correlations between them, and identified the controlling factors of surface SWC in different subregions and at different spatial scales.
Results and discussion
Local factors like temperature, precipitation, and clay content that controling the vertical soil water replenishment and removal dominated the surface SWC spatial variation in this dry study region (mean SWC ≤ 0.10 m3 m−3). Nonlocal factors like topography (e.g., elevation and slope) and soil porosity (sand content) determining the lateral soil water redistribution had outweighed effects in the representative wet subregion. In addition, topography also exerted considerable effects on SWC in this study region due to its great spatial variability, especially when spatial scale < 800 km. As NDVI was complicatedly controlled by other environmental variables, its effect on SWC performed dramatic regional differentiation. In contrast, effect of slope on SWC was more associated with its spatial variability as it was independent from other environmental variables.
Conclusions
This study emphasized that the inconsistencies of controlling factors of SWC spatial variation can be comprehensively explained by different regimes in the dry and wet conditions, spatial variability of environmental variables and the interactions among different environmental variables. These findings can deepen our understanding of the controls on SWC spatial variation across regions and scales.
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Data availability
All data used for this study are publicly available. The SWC for 2005–2015 was accessed from https://zenodo.org/record/4738556. The elevation data was from http://data.tpdc.ac.cn/zh-hans/. The temperature and precipitation were accessed from https://doi.org/10.5281/zenodo.3185722 and https://doi.org/10.5281/zenodo.3114194, respectively. The soil sand and clay contents were from https://data.isric.org/. The NDVI data for 2005–2015 was from http://www.gscloud.cn/.
References
Brocca L, Melone F, Moramarco T, Morbidelli R (2010) Spatial-temporal variability of soil moisture and its estimation across scales. Water Resour Res 46(2):W02516. https://doi.org/10.1029/2009wr008016
Djebou DCS, Singh VP, Frauenfeld OW (2014) Analysis of watershed topography effects on summer precipitation variability in the southwestern United States. J Hydrol 511:838–849. https://doi.org/10.1016/j.jhydrol.2014.02.045
Famiglietti JS, Rudnicki JW, Rodell M (1998) Variability in surface moisture content along a hillslope transect: Rattlesnake Hill. Texas J Hydrol 210(1–4):259–281. https://doi.org/10.1016/S0022-1694(98)00187-5
Famiglietti JS, Ryu D, Berg AA, Rodell M, Jackson TJ (2008) Field observations of soil moisture variability across scales. Water Resour Res 44(1):W01423. https://doi.org/10.1029/2006wr005804
Fatichi S, Katul GG, Ivanov VY, Pappas C, Paschalis A, Consolo A, Kim J, Burlando P (2015) Abiotic and biotic controls of soil moisture spatiotemporal variability and the occurrence of hysteresis. Water Resour Res 51(5):3505–3524. https://doi.org/10.1002/2014wr016102
Gomez-Plaza A, Alvarez-Rogel J, Albaladejo J, Castillo VM (2000) Spatial patterns and temporal stability of soil moisture across a range of scales in a semi-arid environment. Hydrol Process 14(7):1261–1277. https://doi.org/10.1002/(sici)1099-1085(200005)14:7%3c1261::Aid-hyp40%3e3.0.Co;2-d
Grayson RB, Western AW, Chiew FHS, Bloschl G (1997) Preferred states in spatial soil moisture patterns: Local and nonlocal controls. Water Resour Res 33(12):2897–2908. https://doi.org/10.1029/97wr02174
Hebrard O, Voltz M, Andrieux P, Moussa R (2006) Spatio-temporal distribution of soil surface moisture in a heterogeneously farmed Mediterranean catchment. J Hydrol 329(1–2):110–121. https://doi.org/10.1016/j.jhydrol.2006.02.012
Hu W, Si BC (2014) Revealing the relative influence of soil and topographic properties on soil water content distribution at the watershed scale in two sites. J Hydrol 516:107–118. https://doi.org/10.1016/j.jhydrol.2013.10.002
Joshi C, Mohanty BP (2010) Physical controls of near-surface soil moisture across varying spatial scales in an agricultural landscape during SMEX02. Water Resour Res 46(12):W12503. https://doi.org/10.1029/2010wr009152
Korres W, Reichenau TG, Schneider K (2013) Patterns and scaling properties of surface soil moisture in an agricultural landscape: An ecohydrological modeling study. J Hydrol 498:89–102. https://doi.org/10.1016/j.jhydrol.2013.05.050
Lai X, Zhu Q, Zhou Z, Liao K, (2017) Influences of sampling size and pattern on the uncertainty of correlation estimation between soil water content and its influencing factors. J Hydrol 555:41–50. https://doi.org/10.1016/j.jhydrol.2017.10.010
Li B, Rodell M (2013) Spatial variability and its scale dependency of observed and modeled soil moisture over different climate regions. Hydrol Earth Syst Sci 17(3):1177–1188. https://doi.org/10.5194/hess-17-1177-2013
Lv LG, Liao KH, Lai XM, Zhu Q, Zhou SL (2016) Hillslope soil moisture temporal stability under two contrasting land use types during different time periods. Environ Earth Sci 75(7). https://doi.org/10.1007/s12665-015-5238-1
Meng XJ, Mao KBA, Meng F, Shi JC, Zeng JY, Shen XY, Cui YK, Jiang LM, Guo ZH (2021) A fine-resolution soil moisture dataset for China in 2002–2018. Earth Syst Sci Data 13(7):3239–3261. https://doi.org/10.5194/essd-13-3239-2021
Minasny B, Hopmans JW, Harter T, Eching SO, Tuli A, Denton MA (2004) Neural networks prediction of soil hydraulic functions for alluvial soils using multistep outflow data. Soil Sci Soc Am J 68(2):417–429
Peng SZ, Ding YX, Liu WZ, Li Z (2019) 1 km monthly temperature and precipitation dataset for China from 1901 to 2017. Earth Syst Sci Data 11(4):1931–1946. https://doi.org/10.5194/essd-11-1931-2019
Penna D, Brocca L, Borga M, Dalla Fontana G (2013) Soil moisture temporal stability at different depths on two alpine hillslopes during wet and dry periods. J Hydrol 477:55–71. https://doi.org/10.1016/j.jhydrol.2012.10.052
Poggio L, de Sousa LM, Batjes NH, Heuvelink GBM, Kempen B, Ribeiro E, Rossiter D (2021) SoilGrids 2.0: producing soil information for the globe with quantified spatial uncertainty. Soil 7(1):217-240. https://doi.org/10.5194/soil-7-217-2021
Qiu JX, Mo XG, Liu SX, Lin ZH (2014) Exploring spatiotemporal patterns and physical controls of soil moisture at various spatial scales. Theor Appl Climatol 118(1–2):159–171. https://doi.org/10.1007/s00704-013-1050-6
Resurreccion AC, Moldrup P, Tuller M, Ferre TPA, Kawamoto K, Komatsu T, De Jonge LW (2011) Relationship between specific surface area and the dry end of the water retention curve for soils with varying clay and organic carbon contents. Water Resour Res 47(6):W06522. https://doi.org/10.1029/2010wr010229
Rosenbaum U, Bogena HR, Herbst M, Huisman JA, Peterson TJ, Weuthen A, Western AW, Vereecken H (2012) Seasonal and event dynamics of spatial soil moisture patterns at the small catchment scale. Water Resour Res 48(10):W10544. https://doi.org/10.1029/2011wr011518
Ryu D, Famiglietti JS (2006) Multi-scale spatial correlation and scaling behavior of surface soil moisture. Geophys Res Lett 33(8):L08404. https://doi.org/10.1029/2006gl025831
Seneviratne SI, Corti T, Davin EL, Hirschi M, Jaeger EB, Lehner I, Orlowsky B, Teuling AJ (2010) Investigating soil moisture–climate interactions in a changing climate: A review. Earth-Sci Rev 99(3–4):125–161. https://doi.org/10.1016/j.earscirev.2010.02.004
Suo LZ, Huang MB, Zhang YK, Duan LX, Shan Y (2018) Soil moisture dynamics and dominant controls at different spatial scales over semiarid and semi-humid areas. J Hydrol 562:635–647. https://doi.org/10.1016/j.jhydrol.2018.05.036
Takagi K, Lin H (2011) Temporal dynamics of soil moisture spatial variability in the Shale Hills Critical Zone Observatory. Vadose Zone J 10(3):832–842
Takagi K, Lin HS (2012) Changing controls of soil moisture spatial organization in the Shale Hills Catchment. Geoderma 173:289–302. https://doi.org/10.1016/j.geoderma.2011.11.003
Teuling AJ, Troch PA (2005) Improved understanding of soil moisture variability dynamics. Geophys Res Lett 32(5):L05404. https://doi.org/10.1029/2004gl021935
Tong YP, Wang YQ, Song Y, Sun H, Xu YT (2020) Spatiotemporal variations in deep soil moisture and its response to land-use shifts in the Wind-Water Erosion Crisscross Region in the Critical Zone of the Loess Plateau (2011–2015), China. Catena 193:104643. https://doi.org/10.1016/j.catena.2020.104643
Wang T, Franz TE, You J, Shulski MD, Ray C (2017) Evaluating controls of soil properties and climatic conditions on the use of an exponential filter for converting near surface to root zone soil moisture contents. J Hydrol 548:683–696. https://doi.org/10.1016/j.jhydrol.2017.03.055
Wang TJ, Wu DD, Zhan CS (2020) Comparison of environmental controls on soil moisture spatial patterns at mesoscales: Observational evidence from two regions in China. Geoderma 374:114451. https://doi.org/10.1016/j.geoderma.2020.114451
Western AW, Grayson RB, Bloschl G (2002) Scaling of soil moisture: A hydrologic perspective. Annu Rev Earth Planet Sci 30:149–180. https://doi.org/10.1146/annurev.earth.30.091201.140434
Zarlenga A, Fiori A, Russo D (2018) Spatial variability of soil moisture and the scale issue: a geostatistical approach. Water Resour Res 54(3):1765–1780. https://doi.org/10.1002/2017wr021304
Zhang P, Shao Ma, Zhang X (2015) Scale-dependence of temporal stability of surface-soil moisture in a desert area in northwestern China. J Hydrol 527:1034–1044. https://doi.org/10.1016/j.jhydrol.2015.05.015
Zhao Y, Wang Y, Zhang X, Wang L, Hu W, Wang T (2020) Specific-scale correlations between soil water content and relevant climate forcing factors across two climate zones. J Hydrol 585:124800. https://doi.org/10.1016/j.jhydrol.2020.124800
Zhu Q, Castellano MJ, Yang G (2018) Coupling soil water processes and the nitrogen cycle across spatial scales: Potentials, bottlenecks and solutions. Earth-Sci Rev 187:248–258. https://doi.org/10.1016/j.earscirev.2018.10.005
Zhu Q, Lin H (2011) Influences of soil, terrain, and crop growth on soil moisture variation from transect to farm scales. Geoderma 163(1–2):45–54. https://doi.org/10.1016/j.geoderma.2011.03.015
Funding
This study was financially supported by the National Natural Science Foundation of China (42125103 and 42271061), the Youth Innovation Promotion Association, Chinese Academy of Sciences (2020317), and NIGLAS Foundation (E1SL002).
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Lai, X., Zhu, Q., Li, L. et al. Principles responsible for the inconsistent controlling factors of surface soil water content spatial variation across regions and scales. J Soils Sediments 23, 1877–1888 (2023). https://doi.org/10.1007/s11368-023-03427-9
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DOI: https://doi.org/10.1007/s11368-023-03427-9