A native mesophilic iron-oxidizing bacterium,Acidithiobacillus ferrooxidans,has been isolated (30 ℃) from a typical,lead-zinc concentrate of Dachang Mine in th
The cross-sectional images of nine groups of ore samples were obtained by X-ray computed tomography(CT) scanner.Based on CT image analysis,the fractal dimension
The guano of penguins, other seabirds, and pinnipeds is an important source of phosphorus in the ecosystems of Antarctica. To study the vertical distribution of phosphorus in sediments influenced by p
Soil enzyme activities can be used as indicators of microbial activity and soil fertility. In this paper, the activities of invertase(IA), phosphatase(PA) and urease(UA) were investigated in tundra so
Juncus bufonius L. (Juncaceae) is recognized by the US Department of Agriculture as a weed or invasive plant. Recently, we reported on J. bufonius L. var. bufon