Natural Vegetation and Wildlife - Chapter 5 Geography NCERT class 9 Video Lecture

Ans. Natural vegetation refers to the plant life that grows without any human intervention in a particular region or ecosystem. It includes trees, shrubs, grasses, and other forms of plants that have adapted to the local climate, soil, and environmental conditions.

Ans. Natural vegetation is important for various reasons: - It helps in maintaining the ecological balance by providing habitat and food for wildlife. - It helps in preventing soil erosion by holding the soil together with its roots. - It plays a crucial role in the water cycle by absorbing rainfall and maintaining groundwater levels. - It acts as a carbon sink, absorbing carbon dioxide from the atmosphere and helping to mitigate climate change. - It provides resources such as timber, medicinal plants, and food for human populations.

Ans. Several factors influence the type of natural vegetation in a region: - Climate: Temperature, rainfall, and sunlight are key factors that determine the type of vegetation that can grow in a particular area. - Soil: The type and fertility of the soil influence the growth of different types of plants. - Relief: The altitude, slope, and aspect of the land also affect the type of vegetation that can thrive in a region. - Drainage: The availability of water and the presence of rivers, lakes, or marshes influence the distribution of vegetation.

Ans. Wildlife plays a crucial role in maintaining the balance of ecosystems: - Biodiversity: Wildlife contributes to the diversity of species within an ecosystem, which is essential for its stability and resilience. - Pollination: Many plants rely on wildlife, such as bees and birds, for pollination, which is vital for the reproduction of plants. - Seed dispersal: Animals help in dispersing seeds, allowing plants to colonize new areas and maintain genetic diversity. - Food chain: Wildlife forms an integral part of the food chain, serving as a source of prey for predators and maintaining the balance of populations. - Ecotourism: Wildlife attracts tourists, contributing to local economies and raising awareness about conservation.

Ans. Human activities have a significant impact on natural vegetation and wildlife: - Deforestation: The clearing of forests for agriculture, logging, and urbanization leads to the destruction of natural vegetation and the loss of habitat for wildlife. - Pollution: Industrial activities and improper waste disposal contribute to air, water, and soil pollution, which can harm both vegetation and wildlife. - Climate change: Human-induced climate change affects the distribution of natural vegetation and disrupts wildlife habitats, leading to changes in species composition and potential extinction. - Poaching and illegal trade: Wildlife is often targeted for its body parts, leading to the decline of species and disruption of ecosystems. - Urbanization: The expansion of cities and infrastructure encroaches upon natural habitats, reducing the available space for vegetation and wildlife.