Allelopathy Journal

  • Year: 2009
  • Volume: 23
  • Issue: 2

Effects of aqueous extracts of Mikania micrantha H.B.K. on nutrients release from the forests litter at three succession stages in south China

  • Author:
  • Baoming Chen, Shaolin Peng, Leiyi Chen, Furong Li, Gen-Xuan Wang1
  • Total Page Count: 8
  • DOI:
  • Page Number: 453 to 460

State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, 510275, China.

Abstract

We sprayed water (control, CK) and 3 concentrations (0.005, 0.025 and 0.100 g dry weight ml−1) of aqueous extracts on cover soil (beneath which the litter of 3 plants were buried) to determine the rates of litter decomposition and C and N release from 3 dominant native plants (Pinus massoniana Lamb., Schima superba Gardn. et Champ. and Castanopsis chinensis Hance). The extracts increased the litter decomposition rates and nutrients (C, N) release from P. massoniana but decreased these in C. chinensis and there were no effects on S. superba. The changes were variable in different forests and were dependent on the extracts concentration.

Keywords

Aqueous extract, exotic, litter, Mikania micrantha H.B.K., nutrient cycling, tropical forest