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Flame Retardancy of Bark Effects of Different Improvement Measures of Saline-alkali Grassland on Photosynthesis and Other Physiological Characteristics of Elymus dahuricus Viral diseases of Rehmannia glutinosa and problems demanding prompt solut ion Social Security System for National Natural Forest Conservation Program:Current Situation, Problems and Countermeasures Variation and Adaptive Countermeasures of Quercus variabilis Population in Shaanxi Province The Dual Effect of the Giant Panda Edible Bamboo and Prevention Countermeasures Desertification Control Regionalization and Rehabilitation Countermeasures of Source Area of the Sand and Dust Endangering Beijing-Tianjin FALLOUT RADIONUCLIDE BASED TECHNIQUES FOR ASSESSING THE EFFECTIVENESS OF SOIL CONSERVATION MEASURES IN DIFFERENT ERODED REGIONS OF CHINA Effects of eco-environmental factors on the production and distribution
of arbuscular mycorrhizal fungal spores Study on weight units of Chinese medicine in Sui and Tang dynasties Study on other measuring units of Chinese medicine in Sui and Tang dynasties Status of pesticide registration and residue analysis for traditional Chinese medicine in China