What is meant by natural vegetation? How do temperature and rainfall affect its distribution? Explain with examples.

Natural vegetation refers to the plants and other flora that grow in a region without human intervention. It is the plant cover that develops with little or no human interference. It is influenced by several factors, including climate, soil type, topography, and human activities.

Temperature and rainfall are two critical climatic factors that significantly influence the distribution of natural vegetation.

1. Temperature: Different plants require different temperature ranges to grow. For instance, tropical rainforests are found in regions near the equator where the temperature is high throughout the year. On the other hand, coniferous forests, which consist of trees that can withstand cold temperatures like pine, spruce, and fir, are found in colder regions closer to the poles.

2. Rainfall: The amount and distribution of rainfall also determine the type of vegetation in a region. Areas with high rainfall, such as the Amazon Basin or the Congo Basin, support dense forests. In contrast, regions with low rainfall, like the Sahara Desert, have sparse vegetation adapted to drought conditions, such as cacti and other succulents.

In summary, temperature and rainfall significantly influence the type and distribution of natural vegetation in a region. The interplay of these factors creates the diverse range of biomes we see on Earth, from lush rainforests to arid deserts.