This book presents the latest research results related to urban center and urban center. It expounds the theoretical connotation, development models, hierarchical function, and spatial layout of the urban central structure through over 200 figures and tables. In addition, it analyzes the threshold characteristics, structural hierarchy, spatial characteristics, and development rules of urban central structure through field research and quantitative researches on the major urban central stru...

This is a comprehensive and up-to-date resource that delves into the world of phytoplasmas - tiny bacteria that infect plants, causing diseases with significant agricultural and horticultural implications. This new edition combines the latest scientific knowledge, cutting-edge methodologies, and practical insights to provide a complete picture of phytoplasma research, from taxonomy to disease management. It presents in-depth coverage of phytoplasma phylogenetics, epidemiology, vector contr...