Impacts of vegetation type on soil phosphorus availability and fractions near the alpine timberline of the Tibetan Plateau

• Autorzy: Zhang L. , Wu Y. , Wu N. , Luo P. , Liu L. , Hu H.
• Języki publikacji: EN

Abstrakty

EN

Soil phosphorus (P) availability and fractions are influenced to a large extent by land use and cover changes. Inorganic P (IP) and organic P (OP) fractions in surface soils (0-20 cm) under typical vegetation types, including subalpine coniferous forests, alpine shrubs, and alpine shrub-meadows, near the alpine timberline of the eastern Tibetan Plateau of China, were measured by a modified Hedley fraction method. The results showed that OP is the dominant soil P fraction and the main source of available P in alpine soils near the timberline. Soil organic carbon, total nitrogen, and total P contents were higher in subalpine coniferous forests than in alpine shrubs and alpine shrub-meadows. Concentrations of soil labile P (the sums of Resin-IP, NaHCO3-IP, and NaHCO3-OP) were higher in subalpine coniferous forests than in alpine shrubs and alpine shrub-meadows, an observation that may be partially ascribed to the presence of deep litter layers generated by trees. Concentrations of soil labile and moderately organic P (NaHCO3-OP and NaOH-OP) in subalpine coniferous forests were also greater than in alpine shrubs and alpine shrub-meadows. Greater amounts of soil stable OP (extracted by concentrated HCl and cHCl.OP) were accumulated in alpine shrub-meadows compared to alpine shrubs or subalpine coniferous forests. The reduced availability of OP may be attributed mainly to increasing recalcitrant soil organic matter input in alpine shrub-meadows and alpine shrubs. Concentrations of IP associated with Ca minerals and parent materials (extracted by diluted HCl and HCl-IP, and extracted by concentrated HCl and cHCl-IP, respectively) were lower in subalpine coniferous forests, indicating that coniferous forests are more likely to use recalcitrant IP than alpine shrubs and alpine shrub-meadows. In this alpine region, land cover changes from subalpine coniferous forests to alpine shrubs and alpine shrub-meadows near the alpine timberline could decrease soil P conservation, availability, and supplementation.

Słowa kluczowe

EN

alpine timberline; phosphorus availability; phosphorus fractions; Tibetan Plateau; vegetation type

PL

dostepność fosforu; frakcja fosforu; typ roślinności; Wyżyna Tybetańska

• Wydawca: Museum and Institute of Zoology, Polish Academy of Sciences
• Czasopismo: Polish Journal of Ecology
• Rocznik: 2011
• Tom: Vol. 59, nr 2
• Strony: 307--316
• Opis fizyczny: Bibliogr. 40 poz.,Rys., tab.,

Twórcy

autor

Zhang L.

autor

Wu Y.

autor

Wu N.

autor

Luo P.

autor

Liu L.

autor

Hu H.

• Chengdu Institute of Biology, Chinese Academy of Sciences, P. O. Box 416, Chengdu 610041, China,

Bibliografia

• 1. Adams M.A., Pate J.S. 1992 – Availability of organic and inorganic forms of phosphorus to lupins – Plant. Soil. 145: 107–113.
• 2. Aerts R., Chapin F.S. 2000 – The mineral nutrition of wild plants revisited: a re-evaluation of processes and patterns – Adv. Ecol. Res. 30: 1–67.
• 3. Bate D.B., Barrett J.E., Poage M.A., Virginia R.A. 2008 – Soil phosphorus cycling in an Antarctic polar desert – Geoderma, 144: 21–31.
• 4. Beck M.A., Elsenbeer H. 1999 – Biogeochemical cycles of soil phosphorus in southern Alpine spodosols – Geoderma, 91: 249–260.
• 5. Blum J.D., Klaue A., Nezat C.A., Driscoll C.T., Johnson C.E., Siccama T.G., Eagar C., Fahey T.J., Likens G.E. 2002 – Mycorrhizal weathering of apatite as an important calcium source in base-poor forest ecosystems – Nature, 417: 729–731.
• 6. Brookes P.C., Powlson D.S., Jenkinson D.S. 1982 – Measurement of microbial biomass phosphorus in soils – Soil Biol. Biochem, 14: 319–321.
• 7. Bowman W.D. 1994 – Accumulation and use of nitrogen and phosphorus following fertilization in two alpine tundra communities – Oikos, 70: 261–270.
• 8. Cassagne N., Remaury M., Gauquelin T., Fabre A. 2000 – Forms and profile distribution of soil phosphorus in alpine Inceptisols and Spodosols (Pyrenees, France) – Geoderma, 95: 161–172.
• 9. Chen C.R., C ondron L.M., Davis M.R., Sherlock R.R. 2004 – Effects of plant species on microbial biomass phosphorus and phosphatase activity in a range of grassland soils – Biol. Fertil. Soils. 40: 313–322.
• 10. Chen C.R., C ondron L.M., Xu Z.H. 2008 – Impacts of grassland afforestation with coniferous trees on soil phosphorus dynamics and associated microbial processes: A review – For. Ecol. Manag. 255: 396–409.
• 11. Condron L.M., Davis M.R., Newman R.H., C ornforth I.S. 1996 – Influence of conifers on the forms of phosphorus in selected New Zealand grassland soils – Biol. Fertil. Soils. 21: 37–42.
• 12. Cross A.F., Schlesinger W.H. 1995 – A literature-review and evaluation of the Hedley fractionation-applications to the biogeochemical cycle of soil-phosphorus in natural ecosystems – Geoderma, 64: 197–214.
• 13. Cross A.F., Schlesinger W.H. 2001 – Biological and geochemical controls on phosphorus fractions in semiarid soils – Biogeochemistry, 52: 155–172.
• 14. Duxbury J.M., Smith M.S., Doren J.W. 1989 – Soil organic matter as a source and a sink of plant nutrients (In: Dynamics of Soil Organic Matter in Tropical Ecosystems, Eds: D.C. Coleman, J.M. Oades, G.Uehara) – University of Hawaii Press, Honolulu, Hawaii, pp. 33–67.
• 15. Frossard E., Condron L.M., Oberson A., Sinaj S., Fardeau J.C. 2000 – Processes governing phosphorus availability in temperate soils – J. Environ. Qual. 29: 15–23.
• 16. Gao Y.X., Li M.S. 2000 – Soils of Hengduan Mountains – Science Press, Beijing, pp 116–136 (in Chinese).
• 17. George T.S., Gregory P.J., Robinson J.S., Buresh R.J. 2002 – Changes in phosphorus concentrations and pH in the rhizosphere of some agroforestry and crop species – Plant. Soil. 246: 65–73.
• 18. Hedley M.J., Stewart J.W.B., Chauhan B.S. 1982 – Changes in inorganic and organic soil-phosphorus fractions induced by cultivation practices and by laboratory incubations – Soil Sci. Soc. Am. J. 46: 970–976.
• 19. Johnson A.H., Frizano J., Vann D.R. 2003 – Biogeochemical implications of labile phosphorus in forest soils determined by the Hedley fractionation procedure – Oecologia, 135: 487–499.
• 20. Kammer A., Hagedorn F., Shevchenko I., Liefeld J., Guggenbergers G., Goryacheva T., Rigling A., Moiseev P. 2009 – Treeline shifts in the Ural mountains affect soil organic matter dynamics – Glob. Change Bio. 15: 1570–1583.
• 21. Liu S.L., Fu B.J., Ma K.M., Liu G.H. 2004 – Effects of vegetation types and landscape features on soil properties at the plateau in the upper reaches of Minjiang River – Chinese J. Appl. Ecol. 15: 26–30 (in Chinese with English abstract).
• 22. Lin B., Liu Q., Wu Y., He H. 2006 – Nutrient and litter patterns in three subalpine coniferous forests of western Sichuan, China – Pedosphere, 16: 380–389.
• 23. Litaor M.I., S eastedt T.R., Walker M.D., Carbone M., Townsend A. 2005 – The biogeochemistry of phosphorus across an alpine topographic/snow gradient – Geoderma, 124: 49–61.
• 24. Murphy J., Riley J.P. 1962 – A modified single solution method for the determination of phosphate in natural waters – Anal. Chim. Acta. 27: 31–36.
• 25. Parker E.R., Sanford R.L. 1999 – The effects of mobile tree islands on soil phosphorus concentrations and distribution in an alpine tundra ecosystem an Niwot Ridge, Colorado Front Range, USA – Arct. Antarct. Alp. Res. 31: 16–20.
• 26. Pei H.K., Zhu Z.H., Qiao Y.M., Li X.L., Sun H.Q. 2001 – Humus in soil and type of organic phosphorus of soil on different alpine meadow vegetation – Act. Prata Sin. 10: 18–23 (in Chinese with English abstract).
• 27. Redel Y., Rubio R., Godoy R., Borie F. 2008 – Phosphorus fractions and phosphatase activity in an Andisol under different forest ecosystems – Geoderma, 145: 216–221.
• 28. Shiels A.B., Sanford R.L. 2001 – Soil nutrient differences between two krummholz-form tree species and adjacent alpine tundra – Geoderma, 102: 205–217.
• 29. Solomon D., Lehmann J., Mamo T., Fritzsche F., Z ech W. 2002 – Phosphorus forms and dynamics as influenced by land use changes in the sub-humid Ethiopian highlands – Geoderma, 105: 21–48.
• 30. SPSS, Inc., 2001 – SPSS Base 11.0 for Windows User’s Guide – SPSS Inc, Chicago, IL, USA.
• 31. Stewart J.W.B., Tiessen H. 1987 – Dynamics of soil organic Phosphorus – Biogeochemistry, 4: 41–60.
• 32. Sun G., Wu N., Luo P. 2005 – Soil N pools and transformation rates under different land uses in a subalpine forest-grassland ecotone – Pedosphere, 15: 52–58.
• 33. Theodose T.A., Bowman W.D. 1997 – Nutrient availability, plant abundance, and species diversity in two alpine tundra communities – Ecology, 78: 1861–1872.
• 34. Thomas S.M., Johnson A.H., Frizano J., Vann D.R., Zarin D.J., Joshi A. 1999 – Phosphorus fractions in montane forest soils of the Cordillera de Piuchue, Chile: biogeochemical implications – Plant. Soil. 211: 139–148.
• 35. Tiessen H., Moir J.O. 1993 – Characterization of available P by sequential extraction (In: Soil Sampling and Methods of Analysis, Ed: M.R. Carter) – Lewis Publishers, Boca Raton, FL, USA, pp. 75–86.
• 36. Turner B.L., Cade-Menun B.J., Condron L.M., Newman S. 2005 – Extraction of soil organic phosphorus – Talanta, 66: 294–306.
• 37. Wang G.P., Liu J.S., Wang J.D., Yu J.B. 2006 – Soil phosphorus forms and their variations in depressional and riparian freshwater wetlands (Sanjiang Plain, Northeast China) – Geoderma, 132: 59–74.
• 38. Wood T., Bormann F.H., Voigt G.K. 1984 – Phosphorus cycling in a northern hardwood forest-biological and chemical control – Science, 223: 391–393.
• 39. Wu N., Liu Z.G. 1998 – Probing into the causes of geographical pattern of subalpine vegetation on the eastern Qinghai-Tibetan plateau – Chin. J. Appl. Environ. Biol. 4: 290–297 (in Chinese with English abstract).
• 40. Zhao Q., Zeng D.H., Lee D.K., He X.Y., Fan Z.P., Jin Y.H. 2007 – Effects of Pinus sylvestris var. mongolica afforestation on soil phosphorus status of the Keerqin Sandy Lands in China – J. Arid Environ. 69: 569–582.