全球智库信息集成服务系统(G2TT): Experience with using Ellenberg's R indicator values in Slovakia: Oligotrophic and mesotrophic submontane broad-leaved forests.

G2TT

来源类型	Article
规范类型	其他
DOI	10.2478/s11756-012-0027-8
	Experience with using Ellenberg's R indicator values in Slovakia: Oligotrophic and mesotrophic submontane broad-leaved forests.
	Balkovič J; Kollar J; Simonovic V
发表日期	2012
出处	Biologia 67 (3): 474-482
出版年	2012
语种	英语
摘要	Ellenberg's indicator values have been suggested as useful method of estimating site conditions using plants. We examined whether Ellenberg's R values are suitable for indicating soil reaction and if calibration to physical pH measurements can improve bioindication in oligotrophic and mesotrophic submontane broad-leaved forests in Slovakia. Vegetation releves and pH-H 2O and pH-CaCl2 soil reaction were recorded for this purpose. Ellenberg's R values (R_e) were compared to Jurko's indicator values (R_j) and a set of species R values and tolerances (T), which were calibrated with physical pH data using the weighted averaging (R_w, T_w) and Huisman-Olff-Fresco modeling (R_h, T_h). Original R_e values were then recalibrated with measured pH data to establish new, adjusted set of scores (R_c, T_c) at Ellenberg's scale. The Re values are significantly correlated with the other R values, and they demonstrate similar frequency distribution to R_j and R_w values for the studied species pool. The frequency distribution becomes similar across all the R values when indifferent species were excluded. The performance of all the indicator values in terms of bioindication was tested. Releve means of the R values were regressed on the field pH measurements. The performance of bioindication varied from 36% to 49% of the explained variance for pH-CaCl2, with the R e and R c values yielding 46% and 49% respectively. The bioindication slightly improved for all calibrated methods (R_w, R_h and R_c) when species were weighed inversely with their tolerances - the performance varied from 42% to 51%, and the R c values performed most effectively. We concluded that Ellenberg's R values represent a powerful system for bioindicating soil acidity when compared to the other alternatives, with pH-CaCl2 showing better results than pH-H2O. Recalibration of Ellenberg's values to the measured data improved the indicator system.
主题	Ecosystems Services and Management (ESM)
关键词	Bioindication HOF model Soil acidity Species indicator values Weighted averaging
URL	http://pure.iiasa.ac.at/id/eprint/9956/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/129544
推荐引用方式 GB/T 7714	Balkovič J,Kollar J,Simonovic V. Experience with using Ellenberg's R indicator values in Slovakia: Oligotrophic and mesotrophic submontane broad-leaved forests.. 2012.