Shang-yu Gao

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A system for assessing the ecological security of Lhaze County in China's Tibetan Autonomous Region was developed using a pressure-state-response model and the analytic hierarchy process. We then used this model to comprehensively evaluate the status of ecological security in Lhaze County. Our results showed that the ecological environment in Lhaze County(More)
Particulate pollution is a serious health problem throughout the world, exacerbating a wide range of respiratory and vascular illnesses in urban areas. Urban plants play an important role in reducing particulate pollution. Physicochemical characteristics of ambient particles settling upon leaf surfaces of eleven roadside plants at four sites of Beijing were(More)
By techniques of one-step and two-step carbonization, and capped and uncapped carbonization, the pyrolysis on the thinning wood of Chinese fir, one of the fastest growing tree species in south China, was carried out. With special focus on the variation of Raman spectra and X-ray diffraction analysis of carbonized materials under different carbonization(More)
The study on the density of ambient particles settling upon the leaf surface of six conifers in Beijing, the micro-configurations of the leaf surface, and the mineral and element compositions of the particles showed that at the same sites and for the same tree species, the density of the particles settling upon leaf surface increased with increasing ambient(More)
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