Environmental Research Institute;
Shandong University;
Ji'nan 250100;
China;
Institute of Ecology and Biodiversity;
School of Life Sciences;
Shandong University;
Ji'nan 250100;
China;
Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology;
Shandong University;
Ji'nan 250100;
China;
Laboratory of Soil Pollution Control;
Chinese Research Academy of Environmental Science;
Beifing 100012;
China;