Difference of Soil Nutrient between Topsoil and Subsoil and its Influencing Factors

Abstract:

Taking the representative alluvial plain of the Yellow River-Fengqiu county as example, difference of available K (AK), total (TK) and total (TP) between topsoil and subsoil and corresponding factors was studied. The result shows that average content of AK in topsoil is lower than it in subsoil, spatial variation of AK in topsoil is similar with it in subsoil. TK in topsoil shows more randomness than in subsoil. TP in topsoil has a stronger spatial correlation than in subsoil. The spatial distribution of TK and TP are quite consistent with landform in topsoil and subsoil, but AK does not have this trend. The difference of TK between two layers is related with surface deposit and irrigation condition. AK is mainly affected by surface deposit and farming intensity such as fertilization. The difference of TP is unrelated with elevation, the distance to the Yellow River, roads and water channel and residential areas.

• Periodical: Applied Mechanics and Materials (Volumes 246-247)
• Pages: 561-565
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.246-247.561
• Online since: December 2012
• Authors: Xiao Bing Liu, Xuan Song, Jie Chen, Peng Fei Liu
• Keywords: Influencing Factor, Spatial Distribution, Subsoil, Topsoil

References

[1] Pu, Y.L., Xie, D.L., Qu, M., Yang, J. H (2010) Effects of land use and landscape position on soil nutrient in hilly region of Chongqing West. J. Journal of Soil and Water Conservation. 24(5): 1009-2242.

[2] Zheng, B. J,. Wang, Z.F., Tan, X. L (2008) Effects of land use patterns on the physic-chemical properties of the soil profile in purple hilly areas. J. Journal of Southwest University (Natural Science Edition) 30(3): 101-106.

[3] Liu, X. J., Xu, X. N., Chen, X. L (2009) Study on the content of four metal elements in different forest soil. J. Journal of Soil and Water Conservation 23(1): 127-131.

[4] Bewket W., Stroosnijer L (2003) Effects of agroecological land use succession on soil properties in Chemoga watershed, Blue Nile basin, Ethiopia. J. Geoderma 111(1): 85-88.

DOI: 10.1016/s0016-7061(02)00255-0

[5] Zhang, Q.Y., Li, F.D., Liu, M.Y. (2006) Effect of land use on soil properties in debris flow bottomland: A case study at Xiaojiang basin, Yunnan. J. Wuhan University Journal of Natural Sciences 11(4): 870-874.

DOI: 10.1007/bf02830179

[6] T. M. Burgess, R. Webster (1980) Optimal interpolation and isarithmic mapping of soil properties. J. Journal of Soil Science 31(2): 315-331.

DOI: 10.1111/j.1365-2389.1980.tb02084.x

[7] Qu, K.Y., Dai, L.M., Feng, H. M. (2009) Soil fertility characteristics of main forest types in easten mountain areas of Liaoning. J. Chinese Journal of Soil Science. 40: 558-562.

[8] Shepherd, T.G., Saggar, S., Newman, R.H. (2001) Tillage-indued changes to soil structure and organic carbon fractions in New Zealand soil. J. Australian Journal of Soil Research. 39(3): 465-589.

DOI: 10.1071/sr00018