Question

. What is biodiversity? Explain the urban forestry.

18 Dec 2025
Answer :
Word Count : 1023
Biodiversity refers to the variety and variability of life forms on Earth and includes diversity at three interconnected levels: genetic diversity within species, species diversity within ecosystems, and ecosystem diversity across landscapes. It encompasses all living organisms—plants, animals, microorganisms—and the ecological complexes of which they are part. Biodiversity is not only about the number of species but also about the interactions among them and with their physical environment. It forms the foundation of ecosystem functioning by regulating processes such as nutrient cycling, energy flow, pollination, soil formation, and climate regulation. High biodiversity enhances ecosystem resilience, enabling natural systems to adapt to environmental changes and disturbances, while loss of biodiversity weakens ecological stability and reduces the capacity of ecosystems to provide essential services to human society. From an ecological perspective, biodiversity is critical for maintaining balance within ecosystems. Each species plays a specific role, whether as producer, consumer, decomposer, or regulator of populations. Genetic diversity within species ensures adaptability to changing environmental conditions, diseases, and climate variability. Species diversity contributes to food web complexity and ecological interactions, while ecosystem diversity supports a wide range of habitats such as forests, wetlands, grasslands, rivers, and coastal systems. In the context of human development, biodiversity provides direct benefits like food, medicine, fuel, and raw materials, as well as indirect benefits such as air and water purification, flood control, and cultural and recreational values. Rapid urbanization and industrialization have emerged as major drivers of biodiversity loss, particularly in urban areas. Expansion of cities often leads to habitat destruction, fragmentation, pollution, and overexploitation of natural resources. Natural landscapes are replaced by built environments, reducing green spaces and disrupting ecological processes. In this context, the concept of urban forestry has gained significance as a strategy to conserve biodiversity, improve environmental quality, and enhance human well-being within urban and peri-urban settings. Urban forestry refers to the planning, establishment, management, and conservation of trees, forests, and green spaces in and around urban areas. It includes street
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