Why is it usually difficult to maintain productive agriculture year after year in a cleared area of the tropical rainforest? It is difficult to continually maintain productive agriculture in a cleared tropical rainforest
because the soil is no longer being enriched by the natural processes of that former rainforest
.
What generally happens to the elevation of the tree line going from the equator towards the poles?
Treeline elevation generally
increases as one moves from the poles
to the equator, but there is a wide variation in treeline elevation at a given latitude.
What are the differences among forest woodland and shrubland?
What are the differences among forests, woodlands, and shrublands?
forest: trees close together little undergrowth, wide temperature zones, moist
. shrubland: woody plants semiarid or arid. … Briefly describe the desert, tundra, and wetlands plant associations.
What is the point beyond which trees Cannot grow?
The point beyond which trees are unable to grow is called
the treeline
.
What tree grows at the highest altitude?
Head to Bolivia. Guinness is wrong about the flaky firs of China. According to Guinness World Records, that veteran settler of bar bets, the world's highest trees are
Abies squamata
, the flaky firs of southwestern China, which can reach an elevation of 15,000 feet.
Is chaparral the same as shrubland?
Shrublands include regions such as
chaparral
, woodland and savanna. Shrublands are the areas that are located in west coastal regions between 30° and 40° North and South latitude. … The shrublands are made up of shrubs or short trees. Many shrubs thrive on steep, rocky slopes.
What is the climate of shrubland?
The climate is characterized by
mild, moist winters and hot, dry summers
. Trees are unable to grow in these regions and the vegetation is dominated by woody plants with a shrubby habit. … In California scrubland vegetation growing under Mediterranean conditions occurs between 31° and 41° N and is called chaparral.
What biome is Italy?
The main biome of Italy is
the Mediterranean forests, woodlands, and scrub biome
. This is due to the fact that Italy is bordered on three sides by the Mediterranean sea. The vegetation of Italy is vastly different depending on the climate of the region.
What causes tree line?
What Causes Tree Line? There is a lot that comes into play, but basically at some point the climate (the weather in an area over the year) is
just too harsh for trees to survive
. It is a combination of things including too cold, too short of a growing season, too much snow and ice, too windy, or not enough moisture.
Why are there no trees in the Arctic?
The tundra biome features the northernmost limit where plants can grow on earth. … The existence of contiguous permafrost is thought to be one of the main reasons why there are no trees in the tundra,
because, being permenantly frozen, permafrost has a tendency to hamper root development
.
At what altitude does vegetation stop growing?
The desert timberline marks the point where the soil is too dry for tree growth. Youll find this kind of timberline at very low elevations, usually
below 1,500 meters (5,000 feet)
. The desert timberline in the Sonoran Desert of the United States and Mexico features cactus as well as trees like palo verde.
How far up do trees grow?
Averaging over many locations and local microclimates, the treeline rises
75 metres (245 ft)
when moving 1 degree south from 70 to 50°N, and 130 metres (430 ft) per degree from 50 to 30°N. Between 30°N and 20°S, the treeline is roughly constant, between 3,500 and 4,000 metres (11,500 and 13,100 ft).
What is the tallest flowering plant in the world?
Mountain ash
has a regal presence: the tallest flowering plant in the world.
Can you farm 6000 ft above sea level?
Serves pretty well for cattle. But it hates the plow. And even the government should know
you can't farm 6000 feet above sea level
!
What is the main concern with regards to fire in chaparral forests today?
High-elevation chaparral
Its presence complicates fire management because
under certain conditions the shrubs burn and either damage forest trees or serve as ladder fuels which can change a surface fire to either torching trees or a spreading crown fire in conifers
.
What is chaparral good for?
Traditional/Ethnobotanical uses
Chaparral has been used internally to treat
stomach problems
, menstrual disorders, premenstrual syndrome, diabetes, gall bladder and kidney stones, diarrhea, urinary tract infections, and upper respiratory tract infections.
