Thúc đẩy sự giữ lại nitrogen trong đất của vi sinh vật trong quá trình phục hồi các cánh đồng nông nghiệp bỏ hoang bằng các bổ sung hữu cơ

Biology and Fertility of Soils - Tập 43 - Trang 823-828 - 2007
Tibor Szili-Kovács1, Katalin Török2, Emma L. Tilston3, David W. Hopkins3,4
1Research Institute for Soil Science and Agricultural Chemistry of the Hungarian Academy of Sciences, Budapest, Hungary
2Institute of Ecology and Botany of the Hungarian Academy of Sciences, Vácrátót, Hungary
3School of Biological and Environmental Sciences, University of Stirling, Stirling, UK
4Scottish Crop Research Institute, Dundee, UK

Tóm tắt

Việc áp dụng các vật liệu hữu cơ vào đất nhằm tăng cường sự giữ lại nitrogen (N) vào sinh khối vi sinh vật, qua đó giảm nồng độ N vô cơ, đã được nghiên cứu như một phương thức quản lý nhằm tăng cường sự tái thiết lập thảm thực vật bản địa trên các cánh đồng canh tác bỏ hoang trên đất cát tại Công viên Quốc gia Kiskunság, Hungary. Đường sucrose và mùn cưa đã được sử dụng ở ba vị trí địa hình khác nhau trong suốt 4 năm. Sự sẵn có của N và nồng độ N vô cơ có thể chiết xuất đã giảm đáng kể ở tất cả các vị trí. Sinh khối vi sinh vật C và N trong đất đã tăng lên một cách đáng kể sau khi thêm C, nhưng tỷ lệ C vi sinh vật so với N vi sinh vật vẫn không bị ảnh hưởng. Kết luận cho thấy rằng việc kết hợp áp dụng nguồn C nhanh chóng được sử dụng (sucrose) đã thúc đẩy sự giữ lại N, trong khi việc bổ sung nguồn C sử dụng chậm (mùn cưa) đã duy trì sinh khối vi sinh vật C và N cao hơn trong thực địa.

Từ khóa

#hữu cơ #vi sinh vật #nitrogen #sinh khối vi sinh vật #phục hồi đất canh tác bỏ hoang #Công viên Quốc gia Kiskunság

Tài liệu tham khảo

Andren O, Rajkai K, Katterer T (1993) Water and temperature dynamics in a clay soil under winter-wheat—influence on straw decomposition and N-immobilization. Biol Fertil Soils 15:1–8 Baer SG, Blair JM, Collins SL, Knapp AK (2003) Soil resources regulate productivity and diversity in newly established tallgrass prairie. Ecology 84:724–735 Bardgett RD, Leemans DK, Cook R, Hobbs PJ (1997) Seasonality of the soil biota of grazed and ungrazed hill grasslands. Soil Biol Biochem 29:1285–1294 Binkley D, Matson P (1983) Ion exchange resin bag method for assessing forest soil nitrogen availability. Soil Sci Soc Am J 47:1050–1052 Binkley D, Aber J, Pastor J, Nadelhoffer K (1986) Nitrogen availability in some Wisconsin forests: comparisons of resin bags and on-site incubations. Biol Fertil Soils 2:77–82 Blumenthal DM, Jordan NR, Russelle MP (2003) Soil carbon addition controls weeds and facilitates prairie restoration. Ecol Appl 13:605–615 Bremer E, van Kessel C (1992) Seasonal microbial biomass dynamics after addition of lentil and wheat residues. Soil Sci Soc Am J 56:1141–1146 Brookes PC, Landman A, Pruden G, Jenkinson DS (1985) Chloroform fumigation and the release of soil nitrogen: a rapid direct extraction method for measuring microbial biomass nitrogen in soil. Soil Biol Biochem 17:837–842 Carson WP, Barrett GW (1988) Succession in old-field plant communities: effects of contrasting types of nutrient enrichment. Ecology 69:984–994 Cione NK, Padgett PE, Allen EB (2002) Restoration of a native shrubland impacted by exotic grasses, frequent fire, and nitrogen deposition in southern California. Restor Ecol 10:376–384 Corbin JD, D’Antonio CM (2004) Can carbon addition increase competitiveness of native grasses? A case study from California. Restor Ecol 12:36–43 Elhottová D, Szili-Kovács T, Tříska J (2002) Soil microbial community of abandoned sand fields. Folia Microbiol 47:435–440 Fog K (1988) The effect of added nitrogen on the rate of decomposition of organic matter. Biol Rev Camb Philos Soc 63:433–462 Granatstein DM, Bezdicek DF, Cochran VL, Elliott LF, Hammel J (1987) Long-term tillage and rotation effects on soil microbial biomass, carbon and nitrogen. Biol Fertil Soils 5:265–270 Grime JP (1973) Competitive exclusion in herbaceous vegetation. Nature 242:344–347 Harmsen GW, van Schreven DA (1955) Mineralization of organic nitrogen in soil. Adv Agron 7:299–398 Hoffman G (1961) Die Stickstoffbindung der Robinie (Robinia pseudoacacia L.). Arch Forstwes 10:627–631 Jensen ES (1997) Nitrogen immobilization and mineralization during initial decomposition of 15N-labelled pea and barley residues. Biol Fertil Soils 24:39–44 Johnson NC, Zak DR, Tilman D, Pfleger FL (1991) Dynamics of vesicular-arbuscular mycorrhizae during old field succession. Oecologia 86:349–358 Jonasson S, Michelsen A, Schmidt IK, Nielsen EV, Callaghan TV (1996) Microbial biomass C, N and P in two arctic soils and responses to addition of NPK fertilizer and sugar: implications for plant nutrient uptake. Oecologia 106:507–515 Klein DA, McLendon T, Paschke MW, Redente EF (1995) Saprophytic fungal-bacterial biomass variations in successional communities of a semi-arid steppe ecosystem. Biol Fertil Soils 19:253–256 Kovács-Láng E, Fekete G, Molnár Zs (1998) Pattern, process and scale: long-term ecological research in the Kiskunság. In: Fekete G (ed) Advances in community ecology (in Hungarian). Scientia, Budapest, pp 209–224 McLendon T, Redente EF (1992) Effects of nitrogen limitation on species replacement dynamics during early secondary succession on a semiarid sagebrush site. Oecologia 91:312–317 Ocio JA, Brookes PC, Jenkinson DS (1991) Field incorporation of straw and its effects on soil microbial biomass and soil inorganic N. Soil Biol Biochem 23:171–176 Paschke MW, McLendon T, Redente EF (2000) Nitrogen availability and old-field succession in a shortgrass steppe. Ecosystems 3:144–158 Prober SM, Thiele KR, Lunt ID, Koen TB (2005) Restoring ecological function in temperate grassy woodlands: manipulating soil nutrients, exotic annuals and native perennial grasses through carbon supplements and spring burns. J Appl Ecol 42:1073–1085 Reever Morghan KJ, Seastedt TR (1999) Effects of soil nitrogen reduction on nonnative plants in restored grasslands. Restor Ecol 7:51–55 Ritz K, Griffiths BS, Wheatley RE (1992) Soil microbial biomass and activity under a potato crop fertilized with N with and without C. Biol Fertil Soils 12:265–271 Smith JL, Paul EA (1990) The significance of soil microbial biomass estimation. In: Bollag JM, Stotzky G (eds) Soil biochemistry, vol 6. Marcel Dekker, New York, pp 357–396 Tilman D (1986) Nitrogen-limited growth in plants from different successional stages. Ecology 67:555–563 Török K, Lohász C (2004) The effect of climate on the restoration success of sandy grassland in Hungary. In: Proc 16th annual conference of the society for ecological restoration. 24–26 August, 2004, Victoria, Canada, CD-Rom, pp 1–8 Török K, Szili-Kovács T, Halassy M, Tóth T, Hayek Zs, Paschke MW, Wardell LJ (2000) Immobilization of soil nitrogen as a possible method for the restoration of sandy grassland. Appl Veg Sci 3:7–14 Van der Putten WH, van Dijk C, Peters BAM (1993) Plant-specific soil-borne diseases contribute to succession in foredune vegetation. Nature 362:53–56 Vance ED, Brookes PC, Jenkinson DS (1987) An extraction method for measuring soil microbial biomass-C. Soil Biol Biochem 19:703–707 Vitousek PM, Aber JD, Howarth RW, Likens GE, Matson PA, Schindler DW, Schlesinger WH, Tilman DG (1997) Human alterations of the global nitrogen cycle: sources and consequences. Ecol Appl 7:737–750 Zink TA, Allen MF (1998) The effects of organic amendments on the restoration of a disturbed coastal sage scrub habitat. Restor Ecol 6:52–58