Climate, sunlight, fire, soil and topography are some nonliving items in a rainforest. Named abiotic factors, these impact the health of the biotic factors, or living elements, of both tropical and temperate rainforests.Continue Reading
Climatic factors include temperature, rainfall, wind and storm patterns. Temperatures vary by whether a rainforest is temperate or tropical, with cooler temperatures in temperate rainforests. Research shows that numbers of large storm systems have a more significant impact on rainfall than warming temperatures. In particular, the El Ni?o Southern Oscillation is a pattern of decreased rain generated by fluctuations in ocean water temperature.
Sunlight is characteristically low in the rainforest understory. The vertical nature of the environment, where tall trees form a canopy, causes the blockage of most available light and leads to fewer undergrowth plants.
High winds change the sunlight available to the understory by opening up the canopy. Other disturbances include fire, floods and human interactions such as pollution and deforestation. The correlation of air pollution to plant health in temperate forests is unclear and requires additional research.
Soil composition refers to the minerals and nutrients available in the soil for plant growth. The pH of the soil also influences vegetation, with most rainforest soils being alkaline.
The topography of the rainforest includes the geologic formations that form its landscape features. Slopes direct rainwater to lower levels, creating water collection sites. Rocks prevent much plant growth due to unavailability of nutrients and soil. Aspect, or the direction faced by a slope, affects the daily duration of sunlight.Learn more about Environmental Science
There are many abiotic factors present in the temperate deciduous forest, but some of the most common are rocks, climate, soil, sunlight, rain and temperature. The abiotic factors of an ecosystem are all the nonliving things that affect the survival and reproduction of living organisms.Full Answer >
A tropical rain forest is a forest that is located in a region that is warm year round with tall trees. On average, between 50 to 260 inches of rain falls in a tropical rain forest each year.Full Answer >
The world's largest rainforest is the Amazon jungle, which covers about 40 percent of South America. It is as big as the 48 contiguous United States and is home to the Amazon River, which is the second-longest river in the world.Full Answer >
Tropical rainforest landforms are areas that lie between the Tropic of Capricorn and the Tropic of Cancer, are covered in forest and experience a high level of rain. While many small tropical rainforests persist on Earth, the three primary tropical rainforest landforms occur in the Amazon basin of South America, equatorial Africa and the Southeast Asian peninsula and archipelago.Full Answer >