Abstract
Many coastal tideland areas in southern Hangzhou Gulf in Zhejiang Province of China have been successively enclosed and reclaimed for agricultural land uses under a series of reclamation projects over the past 30 years. The variability of soil salinity was considerably great and an understanding of the temporal and spatial components of soil salinity variability is essential before decisions can be made about the feasibility of site-specific management. In this paper, a 5.35-ha field reclaimed in 1996 was selected as the study site and 112 bulk electrical conductivity (ECb) measurements were performed in situ by a hand held device in the topsoil (0–20 cm) at regular 20-m intervals across the field over a two-year period. Conventional statistics and geostatistical techinques were used to assess the spatial variability and temporal stability of soil-salinity distribution. The results indicated high coefficients of variation in topsoil salinity over the three samplings. Simple mean ECb comparison revealed that soil salinity increased from winter to spring. Kriged contour maps showed the spatial trend of salinity distribution and revealed the consistently high and low salinity areas of the field. In percentage terms, the proportions of the moderately saline class, strongly saline class, and extremely saline class were 37, 39, and 24%, respectively. Temporal stability map indicated that more than 60% of the study field was determined as the stable class. Based on the spatial and temporal characteristics, a similarity assessment map was created, which presented 5 homogenous sub-zones, each with different characteristics that can have an impact on the way the field is managed. It was concluded that saline soil land might be managed in a site-specific way based on the clearly defined management sub-regions within the field.
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References
Agrawal OP, Rao KVGK, Chauhan HS, Khandelwal MK (1995) Geostatistical analysis of soil salinity improvement with subsurface drainage system. Trans ASAE 38(5):1427–1433
Bao SD (2000) Soil and agricultural chemistry analysis (In Chinese). Chinese Agriculture Press. Beijing, China, p 179
Blackmore S (2000) The interpretation of trends from multiple yield maps. Comput Electro Agr 26:37–51
Chang YH, Scrimshaw MD, Emmerson RHC, Lester JN (1998) Geostatistical analysis of sampling uncertainty at the Tollesbury Managed Retreat site in Blackwater Estuary, Essex, UK: kriging and cokriging approach to minimise sampling density. Sci Total Environ 221:43–57
Chevallier T, Voltz M, Blanchart E, Chotte JL, Eschenbrenner V, Mahieu M, Albrecht A (2000) Spatial and temporal changes of soil C after establishment of a pasture on a long-term cultivated vertisol (Martinique). Geoderma 94:43–58
Chien YJ, Lee DY, Guo HY, Houng KH (1997) Geostatistical analysis of soil properties of mid-west Taiwan soils. Soil Sci 162:291–297
Ding NF, Li RA, Dong BR, Fu QL, Wang JH (2001) Orientation observation and study of salinity content and nutrient in newly reclaimed sandy soil. Chinese J Soil Sci 32(2):57–59 (in Chinese)
Doerge T (1999) Defining management zones for precision farming. Crop Insights 8(21):1–5
Fu QL, Li RA, Ge ZB (2001) Study on agricultural demonstration management zones in coastal region in Zhejiang province. In: Ding NF, Wang JH, Fu QL, Dong BR (eds) Study on water and salt movement of groundwater in coastal regions in north Zhejiang province (in Chinese). Zhejiang University Press, Hangzhou China, pp 74–77
Hajrasuliha S, Baniabbassi N, Metthey J, Nielsen DR (1980) Spatial variability of soil sampling for salinity studies in southwest Iran. Irrig Sci 1:197–208
Huggins DR, Alderfer AD (1995) Yield variability within a long-term corn management study: implications for precision farming. In: Robert PC, Rust RH Larson WE (eds) Site–specific management for agricultural system. Proceedings of the 2nd International Conference. ASA, CSSA, and SSSA, Madison, WI, USA, pp 417–426
Johnston AE, Goulding KWT, Powlton PR (1986) Soil acidification during more than 100 years under permanent grassland and woodland at Rothamsted. Soil Use Manag 2:3–10
Kang BT, Moormann FR (1997) Effect of some biological factors on soil variability in tropics. Effect of precleaning vegetation. Plant Soil 47:441–449
Kitanidis PK (1997) Introduction to geostatistics: application in hydrogeology. Cambridge University Press, Cambridge UK
Mahmut C, Cevat K (2003) Spatial and temporal changes of soil salinity in a cotton field irrigated with low-quality water. J Hydrol 272:238–249
Miller MP, Singer MJ, Nielsen DR (1988) Spatial variability of wheat yield and soil properties on complex hills. Soil Sci Soc Am J 52:1547–1553
Miyamoto S, Cruz I (1986) Choosing functions for semi-variograms of soil properties and fitting them to sampling estimates. J Soil Sci 37:617–639
Mulla DJ, Bhatti AU, Kunkel R (1990) Methods for removing spatial variability from field research trial. Adv Soil Sci 13:201–213
Ott WR (1995) Environmental statistics and data analysis. Lewis Publishers, New York, p 313
Paz-González P, Vieira SR, Taboada Castro MT (2000) The effect of cultivation on the spatial variability of selected properties of an umbric horizon. Geoderma 97:273–292
Perrier ER, Wilding LP (1986) An evaluation of computational methods for field uniformity studies. Adv Agron 39: 265–312
Rhoades JD, Miyamoto S (1990) Testing soils for salinity and sodicity Soil testing and plant analysis. In: Westerman RL (ed) Soil Science Society of Amercian, Inc. Madison, Wisconsin USA, pp 299–366
Shi Z, Wang K, Bailey JS, Jordan C, Higgins AH (2002a) Temporal changes in the spatial distribution of some soil properties on a temperate grassland site. Soil Use Manag 18:353–362
Shi Z, Wang RC, Huang MX (2002b) Detection of coastal saline land uses with multi-temporal landsat images in Shangyu City, China. Environ Manag 30(1):42–150
Sun B, Zhou SL, Zhao QG (2003) Evaluation of spatial and temporal changes of soil quality based on geostatistical analysis in the hill region of subtropic China. Geoderma 115:85–99
Utset A, Ruiz ME, Herrera J, de Leon DP (1998) A geostatistical method for soil salinity sample site spacing. Geoderma 86:143–151
Warrick AW, Nielsen DR (1980) Spatial variability of soil physical properties in the field. In: Hillel D (ed) Applications of soil physics. Academic Press, New York, pp 319–344
Wu YW, Chen TQ (1981) Empirical formulae for the determination of total salt content by electric conductivity of coastal saline soils in Zhejiang province. J Zhejiang Agric Univ 7(2):125–128 (In Chinese)
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An erratum to this article is available at http://dx.doi.org/10.1007/s00254-005-0035-x.
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Shi, Z., Li, Y., Wang, R.C. et al. Assessment of temporal and spatial variability of soil salinity in a coastal saline field. Environ Geol 48, 171–178 (2005). https://doi.org/10.1007/s00254-005-1285-3
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DOI: https://doi.org/10.1007/s00254-005-1285-3