Diversity and species composition in urban sub-himalayan region of West Bengal, India

Urban green landscapes are crucial in the period of drastic population increase, climate change concerns and pollution. Urban forestry conserves biodiversity and provides ecosystem services, thereby increasing the aesthetic value of cities. However, studies on the urban vegetation cover and their quantification are rare in India. Hence, the present analysis focused on the vegetation composition, quantitative characters and diversity indices in urban areas. The study was carried out through stratified random quadrat sampling and line transect method in urban green areas (three parks and one institutional area) of Cooch Behar city, West Bengal, India. Around 76 plant species, which belong to 67 genera and 39 families, were documented in the studied areas. The highest species richness was reported in Nripendra Narayan Park, followed by Royal Eco Heritage Park. Royal Eco Heritage Park is highly diverse according to the species diversity index. The species Codiaeum variegatum, Polyalthia longifolia and Neolamarckia cadamba are reported from all the urban forestry landscapes. The study serves as a managerial planning tool for the proper maintenance and management of urban green spaces.