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Overcultivation impoverishes the soil 1 million hectares of arable land lost every
year in USA to highways, urbanisation and industry (land is lost at an even
greater rate near fast-growing cities in Latin America) Resistant bushes planted
to act ...
2
Understanding GCSE Geography: A For AQA Specification
Overgrazing and overcultivation eventually lead to removal of the vegetation
cover leaving bare ground. The next heavy rains wash away the soil and cause
huge gulleys (Figure 4). There is also a non-human contribution to desertification;
...
Ann Bowen, John Pallister, 2006
3
Coursemate for OCR C GCSE Geography
Overcultivation and overgrazing Overcultivation occurs when crops are grown on
the same piece of land year after year. Overgrazing is where there are too many
animals for the amount of grass available. Overcultivation and overgrazing tend ...
4
The Threatening Desert: Controlling desertification
Desertification is caused directly by four main types of poor land use:
overcultivation, overgrazing, deforestation andpoorirrigation practices. This
chapter looksat eachtype,gives examplesfromdifferentdryland areas, suggests
the reasons for its ...
5
The Global Casino, Fifth Edition: An Introduction to ...
Several facets of overcultivation are commonly quoted. Some stem from
intensificationoffarming,whichcan result in shorter fallow periods, leading to
nutrient depletion and eventually reduced crop yields. Soil erosion by wind and
water is ...
6
Coursemate for AQA A GCSE Geography
Soil erosion Cutting down trees and removing hedges leaves soil exposed to
wind and increases water erosion, which forms gullies In tropical areas,
deforestation increases leaching surface runoff Mining ruins large areas
Overcultivation ...
7
The Global Casino: An Introduction to Environmental Issues, ...
Several facets of overcultivation are commonly quoted. Some stem from intensi-
fication of farming, which can result in shorter fallow periods, leading to nutrient
depletion and eventually reduced crop yields. Soil erosion by wind and water is ...
8
Africa in Crisis: The Causes and Cures of Environmental ...
Desertificationhas four main causes: overcultivation, overgrazing, deforestation,
and poor irrigation. Of these,overcultivation is byfar themostimportant
causeinAfrica. There are tworeasons, first, ploughingandsowing disturbsthe
soilfar more ...
9
Soil Degradation: A Threat to Developing-country Food ...
... associated degradation problems * Salinization and waterlogging * Nutrient
constraints under multiple cropping * Biological degradation (agrochemicals) *
Nutrient depletion * Soil compaction and physical degradation from
overcultivation, ...
10
Environmental Management in Practice: Vol 3: Managing the ...
Overcultivation. Over cultivationcanoccur in a variety of ways; it may result from
an intensification of existing practices involving, for example, abandonment of
fallow periods or failure to replace nutrients. Alternatively, it may involve bringing
...
Paul Compton, Dimitri Devuyst, Luc Hens, 2013
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «OVERCULTIVATION»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
overcultivation w wiadomościach.
2015 – The International Year of Soils
Regular application of pesticides, herbicides and synthetic fertilizers, overgrazing, deep ploughing, lack of crop rotation, overcultivation, ... «Millstone News, Maj 15»
The Jewish New Year for trees comes on Feb. 3 this year
... mandates that every seventh year there shall be a "Sabbath" for the land, a one-year pause for replenishment, a break from overcultivation. «People's World, Sty 15»
Falafelnomics: Purchasing power in the Middle East
The paucity of arable land and a water supply depleting at an unsustainable rate, largely due to the country's overcultivation a narcotic called ... «The Interpreter, Maj 14»
When the desert devours the lake
It is the accumulated result of many activities: overcultivation, overgrazing, deforestation and poor irrigation. And then there is the new stressor: ... «Toronto Star, Kwi 13»
Food: the crisis behind the crisis isn't getting enough attention
A quarter of the world's productive land has been degraded, mainly by overcultivation, overgrazing and felling trees whose roots bind the soil to ... «Telegraph.co.uk, Paz 12»
PHOTO GALLERY: Desertification - nature's "greatest challenge"
Often caused by human activities, such as overgrazing, overcultivation, deforestation and poorly managed irrigation extreme climatic events ... «Responding to Climate Change, Kwi 12»
Chris de Freitas: Desert's advance a mix of human and natural causes
Typically, stress on the land results from deforestation, overgrazing and overcultivation. Deforestation results from a growing population's use of ... «New Zealand Herald, Sty 12»
Africa: Desertification is Target of Decade of Action, Innovation
... barren in response to drought and unsustainable activities such as overcultivation, overgrazing, deforestation and poor irrigation practices. «AllAfrica.com, Wrz 10»
Uganda mudslide: Villagers dig out after hundreds were buried alive
... the scale of the calamity this time, it is the root causes of overpopulation and the subsequent overcultivation that are really to blame. «Christian Science Monitor, Mar 10»
At the Venice Biennale, Blake Gopnik Reviews John Gerrard's …
The Texas dust storms happened because of massive overcultivation, Gerrard says, made possible by new gasoline-powered tractors ... «Washington Post, Cze 09»
