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Soil Physico-Chemical Property Dynamics When Continually Growing Alfalfa (Medicago sativa) in the Loess Plateau of China


Affiliations
1 School of Agriculture, Ningxia University, Yinchuan, Ningxia, 750021, China
2 State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A & F University, Yangling, Shaanxi 712100, China
 

Continually growing alfalfa (Medicago sativa) is very common in the dry land region of the Loess Plateau, China. The objective was to study the dynamics of the soil physico-chemical properties in alfalfa field soils over time. The space-for-time method was used to study a succession gradient of alfalfa, which were seven aged fields (1, 5, 8, 11, 15, 18 and 22 years). The results showed that the soil water content increased between 1 and 11 years, and then significantly decreased at 15 years (6.9%), finally, increased from 15 to 22 years. Soil bulk density continually decreased, and the variability between each layer for a given growing year significantly fell from 1 to 22 years. Long-term (up to 22 years) alfalfa cultivation has an important influence on the soil structure of the upper layer (0- 70 cm), but has little effect on the deeper soil layer (70-100 cm). The soil organic carbon and soil carbon storage for the different soil layers in different planting years first decreased (1-11 years) and then increased (11-22 years). Total nitrogen storage (0-100 cm) first increased (1-5 years) and then decreased (after 5 years). The soil available K storage and soil alkali-hydrolyzale N storage, both increased as the number of cultivation years rose.

Keywords

Alfalfa, Soil Organic Carbon, Soil N Storage, Soil Structure.
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  • Baptista, R.B., de Morais, R.F., Leite, J.M., Schultz, N., Alves, B.J.R., Boddey, R.M. and Urquiaga, S. 2014. Variations in the N-15 natural abundance of plant-available N with soil depth: Their influence on estimates of contributions of biological N-2 fixation to sugar cane. Appl. Soil Ecol., 73: 124-129.

  • Brodsky, L., Szakova, J., Bazalova, M. and Penizek, V. 2006. Spatial variation features description of soil available P, K, Mg and soil pH by proportional effect. Plant Soil Environ., 52: 41-46.

  • Bronick, C.J. and Lal, R. 2005. Soil structure and management: a review. Geoderma, 124: 3-22.

  • Brye, K.R. and Kucharik, C.J. 2003. Carbon and nitrogen sequestration in two prairie topochronosequences on contrasting soils in southern Wisconsin. Am. Midl. Nat., 149: 90-103.

  • Chang, R.Y., Fu, B.J., Liu, G.H. and Liu, S.G. 2011. Soil carbon sequestration potential for “grain for green” project in Loess Plateau. China Environ. Manage., 48: 1158-1172.

  • Chang, S.J., Liu, N., Wang, X.Y., Zhang, Y.J. and Xie, Y. 2012. Alfalfa carbon and nitrogen sequestration patterns and effects of temperature and precipitation in three agro-pastoral ecotones of Northern China. Plos One, 7.

  • Conant, R.T., Paustian, K. and Elliott, E.T. 2001. Grassland management and conversion into grassland: Effects on soil carbon. Ecol. Appl., 11: 343-355.

  • Deng, L., Wang, K.B., Li, J.P., Shangguan, Z.P. and Sweeney, S. 2014. Carbon storage dynamics in alfalfa (Medicago sativa) fields in the Hilly-Gully region of the Loess Plateau, China. Clean Soil Air Water, 42: 1253-1262.

  • Fan, J., Hao, M.D., Malhi, S.S., Wang, Q.J. and Huang, M.B. 2011. Influence of 24 annual applications of fertilisers and/or manure to alfalfa on forage yield and some soil properties under dryland conditions in northern China. Crop Pasture Sci., 62: 437-443.

  • Ghimire, R., Norton, J.B. and Pendall, E. 2014. Alfalfa-grass biomass, soil organic carbon, and total nitrogen under different management approaches in an irrigated agroecosystem. Plant Soil, 374: 173-184.

  • Goh, K.M. 2004. Carbon sequestration and stabilization in soils: Implications for soil productivity and climate change. Soil Sci., Plant Nutr., 50: 467-476.

  • Guo, L.B. and Gifford, R.M. 2002. Soil carbon stocks and land use change: a meta analysis. Glob. Change Biol., 8: 345-360.

  • Jia, G.M., Cao, J., Wang, C.Y. and Wang, G. 2005. Microbial biomass and nutrients in soil at the different stages of secondary forest succession in Ziwulin, northwest China. Forest Ecol. Manag., 217: 117-125.

  • Jia, X.X., Wei, X.R., Shao, M.A. and Li, X.Z. 2012. Distribution of soil carbon and nitrogen along a revegetational succession on the Loess Plateau of China. Catena, 95: 160-168.

  • Jiang, H.M., Jiang, J.P., Jia, Y., Li, F.M. and Xu, J.Z. 2006. Soil carbon pool and effects of soil fertility in seeded alfalfa fields on the semiarid Loess Plateau in China. Soil Biol. Biochem., 38: 2350-2358.

  • Jiang, J.P., Xiong, Y.C., Jia, Y., Li, F.M., Xu, J.Z. and Jiang, H.M. 2007. Soil quality dynamics under successional alfalfa field in the semi-arid Loess Plateau of northwestern China. Arid Land Res. Manag., 21: 287-303.

  • Lal, R. 2004. Soil carbon sequestration to mitigate climate change. Geoderma, 123: 1-22.

  • Li, Y.S. and Huang, M.B. 2008. Pasture yield and soil water depletion of continuous growing alfalfa in the Loess Plateau of China. Agr. Ecosyst. Environ., 124: 24-32.

  • Qian, P. and Schoenau, J.J. 2007. Using an anion exchange membrane to predict soil available N and S supplies and the impact of N and S fertilization on canola and wheat growth. Pedosphere, 17: 77-83.

  • Sainju, U.M. and Lenssen, A.W. 2011. Dryland soil carbon dynamics under alfalfa and durum-forage cropping sequences. Soil Till. Res., 113: 30-37.

  • Six, J., Elliott, E.T. and Paustian, K. 1999. Aggregate and soil organic matter dynamics under conventional and no-tillage systems. Soil Sci. Soc. Am. J., 63: 1350-1358.

  • Six, J., Elliott, E.T. and Paustian, K. 2000. Soil structure and soil organic matter: II. A normalized stability index and the effect of mineralogy. Soil Sci. Soc. Am. J., 64: 1042-1049.

  • Su, Y.Z., Liu, W.J., Yang, R. and Chang, X.X. 2009. Changes in soil aggregate, carbon, and nitrogen storages following the conversion of cropland to alfalfa forage land in the marginal oasis of northwest China. Environ. Manage., 43: 1061-1070.

  • Zhang, L.Q., Wei, X.R., Hao, M.D. and Zhang, M. 2015. Changes in aggregate-associated organic carbon and nitrogen after 27 years of fertilization in a dryland alfalfa grassland on the Loess Plateau of China. J. Arid Land, 7: 429-437.

  • Zhang, T.J., Wang, Y.W., Wang, X.G., Wang, Q.Z. and Han, J.G. 2009. Organic carbon and nitrogen stocks in reed meadow soils converted to alfalfa fields. Soil Till. Res., 105: 143-148.

  • Zhou, Z.Y., Sun, O.J., Huang, J.H., Li, L.H., Liu, P. and Han, X.G. 2007. Soil carbon and nitrogen stores and storage potential as affected by land-use in an agro-pastoral ecotone of northern China. Biogeochemistry, 82: 127-138.


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  • Soil Physico-Chemical Property Dynamics When Continually Growing Alfalfa (Medicago sativa) in the Loess Plateau of China

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Authors

Jianping Li
School of Agriculture, Ningxia University, Yinchuan, Ningxia, 750021, China
Yingzhong Xie
School of Agriculture, Ningxia University, Yinchuan, Ningxia, 750021, China
Lei Deng
State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A & F University, Yangling, Shaanxi 712100, China
Kaibo Wang
State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A & F University, Yangling, Shaanxi 712100, China
Xiaowei Li
School of Agriculture, Ningxia University, Yinchuan, Ningxia, 750021, China

Abstract


Continually growing alfalfa (Medicago sativa) is very common in the dry land region of the Loess Plateau, China. The objective was to study the dynamics of the soil physico-chemical properties in alfalfa field soils over time. The space-for-time method was used to study a succession gradient of alfalfa, which were seven aged fields (1, 5, 8, 11, 15, 18 and 22 years). The results showed that the soil water content increased between 1 and 11 years, and then significantly decreased at 15 years (6.9%), finally, increased from 15 to 22 years. Soil bulk density continually decreased, and the variability between each layer for a given growing year significantly fell from 1 to 22 years. Long-term (up to 22 years) alfalfa cultivation has an important influence on the soil structure of the upper layer (0- 70 cm), but has little effect on the deeper soil layer (70-100 cm). The soil organic carbon and soil carbon storage for the different soil layers in different planting years first decreased (1-11 years) and then increased (11-22 years). Total nitrogen storage (0-100 cm) first increased (1-5 years) and then decreased (after 5 years). The soil available K storage and soil alkali-hydrolyzale N storage, both increased as the number of cultivation years rose.

Keywords


Alfalfa, Soil Organic Carbon, Soil N Storage, Soil Structure.

References