title: [Woody plant fine root biomass and its spatial distribution in top soil of broad-leaved Korean pine forest in Changbai Mountain].
abstract: Geostatistic method was applied to study the spatial distribution of woody plant fine root biomass in a natural broad-leaved Korean pine (Pinus koraiensis) mixed forest soil in Changbai Mountain. The investigation was carried out in three selected plots, sized 50 m x 50 m, in 2008. In the three plots, the living fine root biomass in surface soil (0-20 cm) was 3.195, 1.930, and 2.085 t x hm(-2), and the dead fine root biomass was 0.971 0.581, and 0.790 t x hm(-2), respectively. In 0-10 cm soil layer, the living fine root biomass had no correlation with the dead fine root biomass; but in 10-20 cm soil layer, a significant positive correlation was found between them (r = 0.352, P < 0.05). The variograms of living fine root biomass and dead fine root biomass could be well fitted by spherical model. Spatial variation explained more than 70% of the total variance of fine root biomass across three plots. The regressed ranges were 5.2, 14. 6, and 9.8 m for living fine root biomass, and 4.3, 20.4, and 20.1 m for dead fine root biomass in plots 1, 2, and 3, respectively. For comparison, Bayesian method was also used to estimate the ranges for the fine root biomass. The results obtained by geostatistic method and Bayesian method were consistent with each other.
authors.affiliation: Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. wangshutang007@163.com
authors.forename: Shu-Tang
authors.initials: ST
authors.lastname: Wang
authors.forename: Shi-Jie
authors.initials: SJ
authors.lastname: Han
authors.forename: Jun-Hui
authors.initials: JH
authors.lastname: Zhang
authors.forename: Cun-Guo
authors.initials: CG
authors.lastname: Wang
authors.forename: Yuan
authors.initials: Y
authors.lastname: Xu
authors.forename: Xue-Feng
authors.initials: XF
authors.lastname: Li
authors.forename: Shu-Qi
authors.initials: SQ
authors.lastname: Wang
mesh_terms: D001499:Bayes Theorem; D018533:Biomass; D002681:China; D028223:Pinus / Q000254:growth & development*; D018517:Plant Roots / Q000254:growth & development*; D012987:Soil / Q000032:analysis*
chemical_list: D012987:Soil