Evolutionary and phylogenetic analyses of 11 species based on the complete chloroplast genome.

The subgenus , one of the most important groups in the genus , comprises over 100 species; however, the taxonomic classification and phylogenetic relationships of remain controversial. Therefore, it is necessary to reconstruct the phylogenetic tree for known species. Here, we report the chloroplast (cp) genome sequences of 11 species to provide insight into evolution of the plastome.

[Experimental research on the anti-wind erosion of typical grasslands].

Wind erosion is one of the most important factors influencing the stability and functions of typical grassland ecosystem and one of the main reasons causing grassland degradation. In order to understand the effects of the human disturbances to the ability of anti-wind erosion of the typical grasslands, a wind tunnel experiment was made and the wind erosion rates (WER) and wind erosion amount (WEA) were selected to illustrate the effects. From the experiment, it can be found that banned-grazing reduced the WEA and the WER markedly.