Responses of nematode communities to different land uses in an aquic brown soil

Abstract

An analysis of the seasonal and vertical distribution of soil nematode communities under three contrasting land uses, i.e., cropland, abandoned cropland and woodland was conducted in an aquic brown soil. The results showed that different land-use types affected the spatiotemporal distribution of soil nematodes and their dominant genera, and different dominant genera showed different responses to land use. In the abandoned cropland and woodland, most dominant genera were present in the 0–20 cm layers and Chiloplacus was mainly distributed in the 5–30 cm layers, while in the cropland, Pratylenchus exhibited an even distribution from the 0–5 cm to the 40–50 cm depth. Soil environmental parameters under different land use could influence soil nematodes; soil porosity, total organic C, total N and the C/N ratio could positively influence the abundance of some dominant genera. Faunal profiles revealed that environmental stability and the homeostasis in the abandoned cropland and woodland lead to higher levels of community structure, and the soil food web tends to succeed to maturity. Nematode faunal analyses are a useful indicator for interpreting the stress and/or nutrient conditions under different land uses.

References

1. Bongers T (1988). De Nematoden van Nederland. Utrecht: Stichting UitgeverijKoninklijke Nederlandse Natuurhistorische Vereniging (in Dutch)
2. Bongers T, Bongers M (1998). Functionaldiversity of nematodes. Appl Soil Ecol, 10: 239–251. doi:10.1016/S0929-1393(98)00123-1
3. Chemini C, Rizolli A (2003). Landuse change and biodiversity conservation in the Alps. J Mount Ecol, 7(Suppl.): 1–7
4. Ferris H, Bongers T, de Goede R G M (2001). A framework for soil food web diagnostics:extension of the nematode faunal analysis concept. Appl Soil Ecol, 18: 13–29. doi:10.1016/S0929-1393(01)00152-4
5. Ferris H, Matute M M (2003). Structuraland functional succession in the nematode fauna of a soil food web. Appl Soil Ecol, 23: 93–110. doi:10.1016/S0929-1393(03)00044-1
6. Fu S L, Coleman D C, Hendrix P F, Crossley Jr D A (2000). Responses of trophic groups of soil nematodes to residueapplication under conventional tillage and no-till regimes. Soil Biol Biochem, 32: 1731–1741. doi:10.1016/S0038-0717(00)00091-2
7. Ingham R E, Anderson R V, Gould W D, Coleman D C (1985). Vertical distribution of nematodes in a short grassprairie. Pedobiologia, 28: 155–160
8. Islam K R, Weil R R (2000). Landuse effects on soil quality in a tropical forest ecosystem of Bangladesh. Agric Ecosyst Environ, 79: 9–16. doi:10.1016/S0167-8809(99)00145-0
9. Kandji S T, Ogol C K P O, Albrecht A (2001). Diversity of plant-parasitic nematodesand their relationships with some soil physico-chemical characteristicsin improved fallows in western Kenya. ApplSoil Ecol, 18: 143–157. doi:10.1016/S0929-1393(01)00157-3
10. Kladivko E J (2001). Tillage systems and soil ecology. Soil Till Res, 61: 61–76. doi:10.1016/S0167-1987(01)00179-9
11. Liang W J, Li Q, Jiang Y, Neher D A (2005a). Nematode faunal analysis in an aquic brown soil fertilised with slow-releaseurea, Northeast China. Appl Soil Ecol, 29, 185–192. doi:10.1016/j.apsoil.2004.10.004
12. Liang W J, Zhang X K, Jiang Y, Ou W, Neher D A (2005b). Vertical distributionof bacterivorous nematodes under different land uses. J Nematol, 37: 361–365
13. Lu R K (2000). Analytical Methods of Soil and Agro-chemistry. Beijing: China Agricultural Science and Technology Press (inChinese)
14. Norton D C, Niblack T L (1991). Biologyand ecology of nematodes. In: : Nickle WR, ed. Manual of Agricultural Nematology.New York: Marcel Dekker Inc., 47–71
15. Ou W, Liang W J, Jiang Y, Li Q, Wen D Z (2005). Vertical distributionof soil nematodes under different land use types in an aquic brownsoil. Pedobiologia, 49: 139–148. doi:10.1016/j.pedobi.2004.10.001
16. Sohlenius B, Sandor A (1987). Verticaldistribution of nematodes in arable soil under grass (Festuca pratensis) and barley (Hordeum distichum). Biol Fertil Soils, 3: 19–25. doi:10.1007/BF00260574
17. Wang G L, Wang Y, Han L L, Zhang M W, Li B (2005). Soil animal communities of variouslyutilized in the Dongting Lake region. ActaEcol Sin, 25: 2629–2636 (in Chinese)
18. Wu J H, Fu C Z, Chen S S, Chen J K (2002). Soil faunal response to land use: effect of estuarine tideland reclamationon nematode communities. Appl Soil Ecol, 21, 131–147. doi:10.1016/S0929-1393(02)00065-3
19. Yeates G W (1996). Impact of historical changes in land use on the soilfauna. New Zeal J Ecol, 15: 99–106
20. Yeates G W, Hawke M F, Rijkse W C (2000). Changes in soil fauna and soil conditionsunder Pinus radiata agroforestryregimes during a 25-year tree rotation. Biol Fertil Soils, 31: 391–406. doi:10.1007/s003749900186
21. Zhang Y G, Jiang Y, Liang W J, Wen D Z, Zhang Y L (2004). Vertical variationand storage of nitrogen in an aquic brown soil under different landuses. J For Res, 15: 192–196