A comparative study of plant biomass in a native grassland exclosure

doi:10.11686/cyxb2015048

Abstract

Abstract: Plant biomass mainly reflects the energy accumulated by plants. Plant species have evolved specialized strategies to regulate biomass allocation among various organs or between above and below ground biomass. We investigated total biomass and biomass allocation characteristics of 27 shrub and herbaceous species in an exclosure on grassland in a marginal oasis area on sandy soil at Jingtai, Gansu Province. The flower, leaf and stem biomass comprised less than 1.0 g in 89%, 70% and 56% of the 27 species respectively and the root:shoot ratio (R:S) of all species was less than 1. The R:S of Artemisia desertorum, Oxytropis aciphylla, Caragana roborovskyi and Nitraria sibirica differed significantly between natural exclosure and artificially restored sites. The ratio of aboveground biomass:total biomass of annual herbaceous species was significantly higher than those of perennial herbaceous and shrub species. These characteristics are deemed advantageous for biodiversity in this environment.

WANG Hui, WANG Hui, LUO Yong-Zhong, MA Wei-Wei. A comparative study of plant biomass in a native grassland exclosure[J]. Acta Prataculturae Sinica, 2015, 24(9): 206-215.

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