why is npp higher in tropical rainforests?
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Net Primary Productivity is affected by temperature, water availability, carbon dioxide, and nutrients, all of which are abiotic factors. In Tropical Rainforests, water, sunlight, and high temperatures are consistent and a dense concentration of plants is present, causing both the GPP and NPP to be very high.
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In some years, like in 1998 and 2005, that deforestation activity coincided with major El Niño droughts, and fires were abundant and widespread. The Amazon did not evolve to burn, but for centuries, fire has been used to clear space in the rainforest for agricultural crops, from soybeans to palm to cattle.
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Abiotic factors (non-living things) in a tropical rainforest include temperature, humidity, soil composition, air, and many others. A few of the many biotic factors (living things) in that forest are toucans, frogs, snakes, and anteaters. All of the biotic factors are dependent upon the abiotic factors.
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In the case of the Amazon rainforest, it's characterized by abiotic factors, like nutrient-poor soil, heavy rainfall, humid air, and warm temperatures. It's also characterized by having a lot of biodiversity, also known as the variety of species in an area.
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Because the equator is closer to the sun. ... Because the sun's rays hit the earth's surface at a higher angle at the equator. e. Because the sun is always directly overhead at the equator.
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There are more species in the tropics because tropical ecosystems have more niches. However, the number of niches in an ecosystem is determined by the number of species in that ecosystem.
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Because of the ample solar energy, tropical rainforests like the Amazon are usually warm year round with temperatures from in the 72-93°F (22-34°C) range, although forests at higher elevations, especially cloud forests, may be significantly cooler.
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A rainforest area is often surrounded by a jungle, with the primary difference being that a rainforest has a very thick canopy of tall trees, which make it very difficult for light to penetrate to the ground level making it difficult for plants to flourish. ... In comparison, jungles have a relatively minor impact.
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On land the maximum primary production rate is found in tropical rainforests followed by tropical deciduous forests, temperate forests, savannah, temperate grasslands and desert scrub.
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While the fires have somewhat faded from the news cycle, deforestation rates continue to go up, and the very real threat towards Indigenous peoples and the environment continues, particularly in Brazil. ... However, Indigenous land and protected territories absorbed more carbon than areas without protection.
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The Amazon Is Still on Fire. Latin America is one of the global regions most vulnerable to climate change, and increased forest fires are just one symptom. ... The Amazon rainforest helps regulate global climate, yet deforestation rates in the nine countries that house the forest are increasing.
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The largest natural nipa stands are found in Indonesia (700,000 ha), Papua New Guinea (500,000 ha) and the Philippines (8000 ha). The northernmost natural occurrence is on the Ryukyu Islands of Japan and the southernmost in North Australia. In South-East Asia, nipa palm is also cultivated.
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Over the past 3 centuries rates of tropical rainforest deforestation have been variable. ... However, in some tropical countries the rate of deforestation is increasing rapidly as those countries use their forest resources. Indonesia has seen the greatest increase, as they replace forests with palm oil plantations.
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But most of the time when people talk about rainforests, they mean the tropical rainforests located near the equator. ... Unlike the rainforests farther to the north and south, tropical rainforests don't really have a "dry season." In fact, they don't have distinct seasons at all.
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NPP is an important component of the global carbon budget and is used as an indicator of ecosystem function. NPP can be directly assessed by measuring plant traits or harvesting plant material on the ground, but across large areas remotely sensed images can be used to estimate NPP.
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Tropical and subtropical rainforests are found in northern and eastern Australia in wet coastal areas. Warm-temperate rainforests grow in New South Wales and Victoria, and cool-temperate rainforests are found in Victoria and Tasmania and in small areas at high altitude in New South Wales and Queensland.
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There are a lot of trees on the prairies. The problem is lack of water on the open prairie where the rate of soil evaporation exceeds the limited rainfall. But areas immediately next to rivers, the south bank of river valleys (where the slope decreases the sun exposure) and the north face of hills are usually forested.