State of bare soil surface as a spring drought indicator

Open access

Abstract

To evaluate soil moisture conditions in spring crops sowing term, data of bare soil surface state were used. Analysis included 32 stations throughout the Czech Republic. Number of days with dry soil surface in each year was compared with the average number of those days in the period 1961-2010 for a given station. The limits of the individual categories were then determined for the period 1961-2010. The individual values of the number of days with dry condition of soil in the early spring period were compared with acquired 10th, 25th, 75th and 90th percentile average (1961-2010). More days with dry soil are usually observed in April than in March. In both months there are 11 days with this condition of soil altogether on average. Dry early spring occurred mainly in 1961, 1968, 1974, 1981, 1990, 2002, 2003, 2007 and 2009. Wet spring occurred in years 1965, 1970, 1980, 2001 and 2006 at almost all stations. There is a significant correlation (p < 0.01) between number of days with dry condition of soil and elevation (r = −0.51, n = 32). Average number of days with dry condition of soil surface in March and April in the period 1961-2010 ranges from 5 to 21 days, which is similar to the median values. Trend analysis did not produce conclusive results, but linear trend of smoothing April data was significantly increased in most localities. The number of days with dry condition of soil in the past decades has no significant upward or downward trend. However four years (2002, 2003, 2007 and 2009) have been evaluated as dry and two years (2001 and 2006) were evaluated as wet. An amount of extreme spring weather increases.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • Blinka P.. 2005: Climatological evaluation of drought and dry periods on the territory of Czech Republic in the years 1876-2002. Meteorological bulletin 58. 1 10-18.

  • Brázdil R. Kirchner K. Voženílek V. (eds.) 2007: Vybrané prírodní extrémy a jejich dopady na Morave a ve Slezsku. Masarykova univerzita Český hydrometeorologický ústav Ústav geoniky AV ČR Brno. Praha Ostrava. 432 p. (in Czech).

  • Brázdil R. Trnka M. Dobrovolný P. Chromá K.. Hlavinka P. Žalud Z. 2009: Variability of droughts in the Czech Republic 1881-2006. Theoretical and applied climatology 97. 3-4 297-315.

  • Dubrovský M. Svoboda M. Trnka M. Hayes M. Wilhite D. Žalud Z. Hlavinka P. 2009: Application of relative drought indices in assessing climate-change impacts on drought conditions in Czechia. Theoretical and Applied Climatology. 96. 1-2 155-171.

  • Haberle J. Mikysková J. 2006: Relation of cereals yields and variability to soil-climate and production characteristics of districts of the Czech Republic. Journal of Central European agriculture 7. 4 661-668.

  • Hlavinka P. Trnka M. Semerádová D. Dubrovský M. Žalud Z. Možný M.. 2009: Effect of drought on yield variability of key crops in Czech Republic. Agricultural and forest meteorology. 149. 3-4 431-442.

  • Owe M. De Jeu R. Holmes T. 2008: Multisensor historical climatology of satellite- derived global land surface moisture. Journal of Geophysical Research: Earth Sur- face 113 F01002 doi:10.1029/2007JF000769.

  • Potop V. Boronean^ C. Možný M. Stépánek P.. Skalák P. 2013: Observed spatiotem- poral characteristics of drought on various time scales over the Czech Republic. Theoretical and Applied Climatology doi: 10.1007/s00704-013-0908-y.

  • Seneviratne S. I. Corti T. Davin E. L.. Hirschi M.. Jaeger E. B.. Lehner I. Teuling A. J.. 2010: Investigating soil moisture-climate interactions in a changing climate: a review. Earth-Science Reviews 99. 3 125-161.

  • Slabá N. 1972: Návod pro pozorovatele meteorologických stanic ČSSR. 2. preprac. vyd. Hydrometeorologický ústav. Sborníky predpisu Hydrometeorologického ústavu v Praze Sv. 7. Praha 222 p. (in Czech).

  • Takáč J.. 2013: Assessment of drought in agricultural regions of Slovakia using soil wrater dynamics simulation. Agriculture (Poľnohospodárstvo). 59 2 74-87.

  • Tekušová M.. Horecká V. Jančovičová Ľ. 2011: Stav povrchu pôdy vo vzťahu k zrážko- merným charakteristikám počas vegetačných období v Hurbanove. In: Salaš P. (ed.): “Rostliny v podminkách mčnícího se klimatu”. Lednice 20.-21.10.2011 Úroda vedecká príloha 2011 629-639 (in Czech).

  • Trnka M. Hlavinka P. Semerádová D.. Dubrovský M.. Žalud Z. Možný M. 2007: Agri- cultural drought and spring barley yields in the Czech Republic. Plant Soil and Environment 53 7. 306-316.

  • Trnka M. Semerádová D.. Dubrovský M. Žalud Z. Svoboda M. Hayes M. Wilhite D. 2004: Drought event probability in the Czech republic under the present and changed climatic conditions. In: 12. Poster Day. Bratislava: ÚH-SAV/GFÚ-SAV 64-75. ISBN 80-89139-05-1.

  • Velleman P. F. 1980: Definition and comparison of robust nonlinear data smoothing algorithms. Journal of the American Statistical Association 75. 371 609-615.

  • Zhao W. Li Z. L.. Wu H. Tang B. H.. Zhang X. Song X. Zhou G. 2012: Determination of bare surface soil moisture from combined temporal evolution of land surface temperature and net surface shortwave radiation. Hydrological Processes. 27 19 2825-2833.

  • Zidek D.. Lipina P. 2003: Návod pro pozorovatele meteorologických stanic CHMU. Metodický predpis č. 13 ČHMÚ Ostrava 90 p. (in Czech).

Search
Journal information
Impact Factor


CiteScore 2018: 0.52

SCImago Journal Rank (SJR) 2018: 0.312
Source Normalized Impact per Paper (SNIP) 2018: 0.615

Metrics
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 81 32 0
PDF Downloads 50 30 0