Effects of vegetation cover and slope length on nitrogen and phosphorus loss from a sloping land under simulated rainfall

• Autorzy: Qian J. , Zhang L.-P. , Wang W.-Y. , Liu Q.
• Języki publikacji: EN

Abstrakty

EN

In order to evaluate the effects of different slope lengths (1, 2, 3, 4, and 5 m) and different vegetation coverage ratios (20%, 45%, 60%, and 90%) on the mechanisms of nutrient loss and runoff producing processes, we have conducted 14 simulated rainfall experiments. The results show that N and P loss are decided by the concentration and the runoff volume, but when the amounts of N and P in topsoil are small, their loss content mostly depends on runoff volume. Dissolved nitrogen is the main form in the nitrogen loss, while nitrate nitrogen is the main component in dissolved nitrogen, but the proportion in the total nitrogen gradually decreases with slope length increasing or with the increase of vegetation cover; the main form of phosphorus losses is particulate phosphorus, and the excessive sediment-bound nutrient loss released into water might cause secondary pollution of an aquatic environment.

Słowa kluczowe

EN

vegetation cover; slope length; nitrogen loss; phosphorus loss; sloping land; simulated rainfall; nutrient loss

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2014
• Tom: 23
• Numer: 3
• Opis fizyczny: p.835-843,fig.,ref.

Twórcy

autor

Qian J.

• Zhejiang Provincial Key Laboratory of Subtropical Soil and Plant Nutrition, Key Laboratory of Polluted Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou-310058, China

autor

Zhang L.-P.

• Zhejiang Provincial Key Laboratory of Subtropical Soil and Plant Nutrition, Key Laboratory of Polluted Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou-310058, China

autor

Wang W.-Y.

• Zhejiang Provincial Key Laboratory of Subtropical Soil and Plant Nutrition, Key Laboratory of Polluted Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou-310058, China

autor

Liu Q.

• Zhejiang Provincial Key Laboratory of Subtropical Soil and Plant Nutrition, Key Laboratory of Polluted Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou-310058, China

Bibliografia

• 1. SCHEPERS J.S., RAUN W.R. Nitrogen in the Agriculture Systems. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, Soil Science Society of America pulishing: Madison, pp. 965, 2008.
• 2. YU S., HE Z.L. Surface runoff phosphorus (P) loss in relation to phosphatase activity and soil P fractions in Florida sandy soils under citrus production. Soil Biol. Biochem. 38, 619, 2006.
• 3. LI M., YAO W.Y., DING W.F., YANG J.F., CHEN J.N. Effect of grass coverage on sediment yield in the hillalopegully side erosion system. Journal of Geographical Science. 19, 321, 2009.
• 4. LIN C.W., LUO C.Y., PANG L.Y., HUANG J.J., TU S.H. Effect of different fertilization methods and rain intensities on soil nutrient loss from a purple soil. Scientia Agricultura Sinica. 44, 1847, 2011 [In Chinese].
• 5. PETER J.A., KLEINMAN M.S., SRINIVASAN C. J., DELL J.P., SCHMIDT A.N., SHARPLEY, BRYANT R.B. Role of rainfall intensity and hydrology in nutrient transport via surface runoff. J. Environ. Qual., 35, 1248, 2006.
• 6. ZHAO G.X., LI X.J., LI T., YUE Y.D., ZHANG R.Y. Analysis of soil nutrient situation under different cultivated land use types. Transactions of the CSAE. 21, 55, 2005 [In Chinese].
• 7. WANG H., WANG Q.J., SHAO M.A. Effect of soil bulk density on soil nutrient in runoff from loess slope. J. Soil Water Conserv., 21, 10, 2007 [In Chinese].
• 8. WANG J.F., BO J., QIU Y., CHEN L.D., YU L. Spatial heterogeneity of soil nutrients in a small catchment of the Loess plateau. Acta Ecologica Sinca. 22, 1173, 2002 [In Chinese].
• 9. PENG W.Y., ZHANG K.L., JIANG Z.S., KONG Y.P. Runoff and sediment changes characteristics after returning cropland to grass on the loess plateau. Scientia Geographica Sinica. 22, 397, 2002 [In Chinese].
• 10. ZHANG F.L. Effect of vegetation changes on soil erosion on the loess plateau, Pedosphere, 4, 420, 2006.
• 11. YU X. X., BI H. X., ZHU J. Z., WU B. Soil and water conservation by forest vegetation in loess area. Acta Phytoecol.Sin. 5, 433, 1997 [In Chinese].
• 12. ZHANG Y., LIU B.Y., ZHANG Q.C., XIE Y. Effect of different vegetation types on soil erosion by water. Acta Botanica Sinica. 45, 1204, 2003.
• 13. MORGAN R.P.C., RICKSON R.J. Slope Stabilization and Erosion Control: a bioengineering approach. Spon Press. London. pp. 288, 1995.
• 14. BOCHET E., RUBIO J.L., POESEN J. Modified topsoil islands within patchy Mediterranean vegetation in SE Spain. Catena, 38, 23, 1999.
• 15. BAO S.D. Soil and Agro-chemistry Analysis, third ed., Agriculture Press, Beijing: China, pp. 495, 2000.
• 16. BAJRACHARYA R.M., LAL R. Crusting effects on erosion processes under simulated rainfall on tropical, Alfisol. Hydrol. Process., 12, 1927, 1998.
• 17. LI Y., ZHU X.M., TIAN J.Y. Effectiveness of plant roots to increase the anti-scour ability of soil on the Loess Plateau. Chinese Sci. Bull., 36, 2077, 1991.
• 18. LIANG X.Q., TIANG G.M., LI H.C., YING X., ZHU S. Study on characteristic of nitrogen and Phosphorus loss from rice field by natural rainfall runoff. J. Soil Water Conserv. 19, 59, 2005.
• 19. Li D.R., DONG W.D., WANG F.J. Influence of Different Soil and Water Conservation Measurements on Phosphorus Loss on Orchard Slope Land of Red Soil. J. Soil Water Conserv. 18, 81, 2004 [In Chinese].
• 20. FU S.H., LIU B.Y. Evolution of the soil erosion model. Advance in earth sciences. 17, 78, 2002 [In Chinese].
• 21. LAMBERT M.G., DEVANTIER B.P., NES P., PENNY P.E. Losses of nitrogen, phosphorus and sediment in runoff from hill country under different fertilizer and grazing management regimes. New Zeal. J. Agr. Res. 28, 371, 1985.
• 22. GILLINGHAM A.G., THORROLD B.S. A review of New Zealand research measuring phosphorus in runoff from pasture. J. Environ. Qual. 29, 88, 2000.
• 23. FLEMING N.K., COX J.W. Carbon and phosphorus losses from dairy pasture in South Australia. Soil Research, 39, 969, 2001.
• 24. WANG X.Y., WANG J.Y., OU Y., YU Y. Phosphorous Loss from soil runoff sediment a slope plots. J. Soil Water Conserv., 22, 2, 1-5, 2008 [In Chinese].
• 25. ZHANG X.C., SHAO M.A., HUANG Z.B., LU Z.F. An experimental research on soil erosion and nitrogen loss under different vegetation cover, Acta Ecologica Sinca. 20, 1038, 2000 [In Chinese].