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Changes of chemical compositions in Coleus blumei roots under lead (Pb) stress with different concentrations of selenium (Se) treatments (0, 0.1, 0.5, 1.0, 2.5, and 5.0 mM) were analyzed by Fourier transform infrared (FTIR) spectrometry and 2-dimensional FTIR correlation spectroscopy. This was to investigate the spectroscopy differences and microscopic dynamics of chemical functional groups in C....
Rapid and extensive economic development in China has resulted in a dramatic increase in the consumption of energy and resources with negative ecological effects. This study sought to define the concept of social-ecological systems (SES) resilience to determine whether a given system can effectively withstand these adverse effects per its quantitative level of resilience. The information entropy method...
The particle of calcareous sands was forced to crush, then the energy from the crushing was released by the form of sound waves. Therefore the AE technique was used to detect the calcareous sands AE signal when it crushed. by to study the AE characteristics, the mechanics of calcareous sands was studied. Study showed that: (1) there was the AE activities on the low confining pressure condition at...
Ligularia virgaurea (Maxim.) is a typical naturally-occurring native noxious weed, widely distributed in alpine grasslands of the Tibetan Plateau, China. Three field sampling plots (30 m ´ 50 m) dominated by L. virgaurea were selected to study its population colonization mode and the relationship between sexual- and clonalrecruitment in alpine meadow of the QinghaiTibetan Plateau, NW China. Field...
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