Spatial variability of soil phosphorus in field scale

Abstract

Abstract: In this paper,the spatial variability of soil total P and Olsen-P at the depths of 0～10 and 10～20 cm in a field-scale was examined by using traditional statistics combined with geostatistics methods.A sampling grid of 30 m×42 m including 49 pairs of soil sampling points was established in the Shenyang Experimental Station of Ecology,Chinese Academy of Sciences.The results showed that the variance coefficients were much higher for Olsen-P(46.56%～56.42%)than for total P(11.68%～13.33%).Both total P and Olsen-P in the two soil depths had strongly spatial structures and similar spatial correlation ranges.The parameters derived from best-fitted models showed that the spatial variability of both total P and Olsen-P was mainly affected by structural factors,with C/(C₀+C)being higher than 66% for all the variables.The kriging contour maps showed that both total P and Olsen-P in the two soil depths had similar spatial distribution patterns.A more precise sampling scheme could be made based on the spatial distribution pattern of test soil properties combined with traditional variance coefficients.To recognize the strong variability of soil Olsen-P in field-scale is of significance for better understanding the P cycling in farm ecosystems and for precise agriculture.

Key words: Soil, Phosphorus, Spatial variability, Geostatistics, Field scale

CLC Number:

S158

JIANG Yong, LIANG Wenju, ZHANG Yuge . Spatial variability of soil phosphorus in field scale[J]. Chinese Journal of Applied Ecology, 2005, 16(11): 2086-2091.

References

[1] Brus DJ, Spatjens LEEM, de Gruijter JJ. 1999. A sampling scheme for estimating the mean extractable phosphorus concentration of fields for environmental regulation. Geoderma, 89:129～ 148
[2] Cahoon LB, Ensign SH. 2004. Spatial and temporal variability in excessive soil phosphorus levels in eastern North Carolina. Nutr Cycl Agroecosyst, 69:111 ～ 125
[3] Cambardella CA, Moorman AT, Novak JM, et al. 1994. Field-scale variability of soil properties in central Iowa soils. Soil Sci Soc Am J, 58:1501 ～ 1511
[4] Chen F-S(陈伏生),Zeng D-F(曾德慧),Chen G-S(陈广生).2004. Effect of land use change on spatial distribution pattern of soil total nitrogenin Keerqin sandy land.Chin J Appl Ecol(应用生态学报),15(6):953～957(in Chinese)
[5] Chien YJ, Lee DY, Guo HY, et al. 1997. Geostatistics analysis of soil properties of mid-west Taiwan soils. Soil Sci, 162:291～ 298
[6] Gamma Design Software. 2000. GS +:Geostatistics for the Environmental Sciences 5.1 User' s Guide. MI, USA:Gamma Design Software, Plainwell.
[7] Gao X-Z(高祥照),Hu K-L(胡克林),Guo Y(郭焱),et al.2002.Spatial variability of soil nutrients and crop yield and site-specific fertilizer management.sci Agric Sin(中国农业科学),35(6):660～666(in Chinese)
[8] Guo X-D(郭旭东),Fu B-J(傅伯杰),Ma K-M(马克明),et al.2000.SpatiaJ variability of soil nutrients based on geostatistics combined with GIS-A case study in Zunhua city of Hebei Province.Chin J Appl Ecol(应用生态学报),11(4):557～563(in Chinese)
[9] Jarvie HP, Neal C, Williams RJ. 2004. Assessing changes in phosphorus concentrations in relation to in-stream plant ecology in lowland permeable catchments:Bringing ecosystem functioning into water quality monitoring. Water Air Soil Poll:Focus, 4:641 ～ 655
[10] Jiang Y(姜勇),Liang W-J(梁文举),Wen D-Z(闻大中).2003.Middle-and Micro-Elements in Cultivated Soils of Shenyang Suburbs.Beijing:China Agricultural Science and Technology Press.(in Chinese)
[11] Jiang Y(姜勇),Zhang Y-G(张玉革),Liang W-J(梁文举),et al.2003.Spatial variability of soil nutrientsin cultivated surface soil of Sujiatun District,Shenyang City.Chin J Appl Ecol(应用生态学报),14(10):1673～1676(in Chinese)
[12] Jiang Y(姜勇),Zhang Y-G(张玉革),Wen D-Z(闻大中),et al.2003.Spatial heterogeneity of exchangeable iron content in cultivated soils of Shenyang suburbs.J Soil Water Cons(水土保持学报),17(1):119～121(in Chinese)
[13] Jiang Y, Liang WJ, Wen DZ, et al. 2005. Spatial heterogeneity of DTPA-extractable zinc in cultivated soils induced by city pollution and land use. Sci China C, 48(supp.):82～91
[14] Lark RM, Ferguson RB. 2004. Mapping risk of soil nutrient deficiency or excess by disjuction and indicator kriging. Geoderma,118:39～53
[15] Liang WJ, Li Q, Jiang Y, et al. 2003. The effect of cultivation on the spatial distribution of nematode trophic groups in black soil. Pedosphere, 13(2) :97 ～ 102
[16] Lopez-Granados F, Jurado-Exposito M, Atenciano S, et al. 2002.Spatial variability of agricultural soil properties in southern Spain.Plant Soil, 246:97 ～ 105
[17] Page AL, Miller RH, Keeney DR. 1982. Methods of soil analysis,Part 2:Chemical and Microbiological Properties. 2nd ed. Wisconsin,USA:ASA and SSSA Inc.
[18] Paz-González A, Vieira SR, Tahoada Castro MT. 2000. The effect of cultivation on the spatial variability of selected properties of an umbric horizon. Geoderma, 97:272 ～ 292
[19] Wang J(王军),Fu B-J(傅伯杰),Qiu Y(邱扬),et al.2002.Spatial heterogeneity of soil nutrients in a small catchment of the Loess Plateau.Acta Ecol Sin(生态学报),22(8):1173～1178(in Chinese)
[20] White JG, Welch RM, Norvell WA. 1997. Soil zinc map of the USA using geostatistics and geographic information systems. Soil Sci Soc Am J, 61:185 ～ 194
[21] Withers PJA, Edwards AC, Foy RH. 2001. Phosphorus cycling in UK agriculture and implications for phosphorus loss from soil. Soil Use Man, 17:139～149
[22] Xue Z-P(薛正平),Yang X-W(杨星卫),Duan X-S(段项锁),et al.2002.Spatial variability of soil nutrient and reasonable sampling number.Trans CSAE(农业工程学报),18(4):6～9(in Chinese)
[23] Zhang Y-G(张玉革),Jiang Y(姜勇),Liang W-J(梁文举),et al.2004.Vertical variation of soil pH and Olsen-P in aquic brown soil as affected by land use.J Soil Water Cons(水土保持学报),18(4):89～92(in Chinese)