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Ecological Evaluation of Yarlung Zangbo Grand Canyon National Nature Reserve in Tibet Characteristics of soil microbial populations and biomass under different ecosystems in a canyon karst region Carbon pattern of different ecosystems in canyon karst region in southwestern of China Newly Recorded Species of Plant to Shaanxi,China "Micro-canyon effect" of city road green belt and its effect on the pollutant concentration above roads for non-motorized vehicles Preliminary Study on Floristic Characteristics and Ecological Adaptability of Vascular Plants in the Special Eco-environment of Canyon in Dehang,Hu‘nan Stability and organic carbon characteristics of soil aggregates under different ecosystems in karst canyon region.