Section 8-2

2041 days ago, 674 views
PowerPoint PPT Presentation

Presentation Transcript

Slide 1

´╗┐Part 8-2 Swidden Agriculture - Page 279 Intensive Subsistence Systems Urban Subsistence Farming The Economy of Chinese Village Costs of Territorial Extension Intensification and the Green Revolution Women and Green Revolution Commercial Agriculture

Slide 2

Swidden Agriculture (279) Low pop. thickness much land is expected to bolster few individuals Shifting Cultivation is established on the islands of Kalimantan (Borneo), New Guinea, and Sumatra in Indonesia. Presently just in uplands of SE Asia in Vietnam, Thailand, Myanmar and Philippines, Nearly the entire of Central and West Africa far from the coasts, Brazil's Amazon bowl, and huge parts of Central America Boserup postulation - pop increments require expanded contributions of work and innovation to make up for diminishments in the normal yields of swidden cultivating. The pop increment compels an expanded utilized of tech as a part of cultivating, changing over from broad to escalated subsistence farming.

Slide 3

Intensive Subsistence Systems Half of the general population of the world occupied with this movement Exchange of ranch items Mostly in rainstorm Asia. warm and sodden stream valleys and delta planting rice shoots by turn in standing crisp water is a dull workmanship (8.10) Cooler/drier Asia - wheat and millet is planted. Rice gives 25 - 80% calories to more than 2.8 billion pop. Water administration is significant to the rice creation Rice Landscape - levees, supplies, waterways, seepage channels, and patios to stretch out level land to valley inclines Swine, ducks and chickens are fundamental meat. Cows utilized for work and create composts.

Slide 4

The Economy of Chinese Village Rice planted in March and August, collected in July and Nov. Water bison, transplanting of rice seedlings from seedbed. Two weeding by hands Harvest - sifting Vegetable planting, spring/summer develops eggplants, squash and beans, green-leafed in tumble to spring. Watering with the since quite a while ago took care of wooden scoop, extra manure, generally weakened pee or a blend of weakened pee and excreta was given at regular intervals or thereabouts. See different connections Threshing rice

Slide 5

Urban Subsistence Farming Provide 1/7 of the world sustenance generation - for the most part in Asia occupied with little garden plots, lawn domesticated animals reproducing and bringing fish up in lakes and streams. China, Taiwan, Cuba, Kenya and numerous different nations inhabitants occupied with urban subsistence cultivating. In parts of the creating scene, this has lessened the rate of grown-up and youngster hunger in urban areas. Numerous depend on this as sole salary Advantages-change over waste from issue to asset by diminishing keep running off and disintegration from open dumps and by staying away from expenses of wastewater treatment and strong waste transfer. Illustrations - Sudan, Calcutta.. Detriment - ailments, water contamination

Slide 6

Cost of regional augmentation Forest land transformed into homestead arrive - soil misfortune took after timberland decimation. Strengthening and the Green Revolution expanded generation of existing yield arrive represented the greater part of the development of agr. creation by: expanded use of manure/pesticides Green Revolution

Slide 7

Origin of Green Revolution Started in 1960s, Philippino inquire about crossed a Chinese rice with Indonesian assortment and delivered IR8 rice with greater head of grain and more grounded stem. In 1982, they created IR36, the most broadly developed yield on Earth IR36-blended from 13 guardians hereditary resistance against 15 vermin and developing cycle of 110 days which makes three products for every year conceivable. Outlining of genome (12 chromosomes) is progressing, it will in the long run increment the creation and build up the imperviousness to maladies and irritations Green Revolution - 8.11 patterns in sustenance generation 1961-1999. Sparing an expected one billion individuals from starvation. Expanded calories per individual, pop with sufficient nourishment in creating nations hopped from 55% to 80%.

Slide 8

Green Revolution Disadvantages - water system obliterated substantial tracts of land, groundwater consumption, water wars, loss of conventional/subsistence cultivating, sustenance creation going for fare, rustic culture crushed, lessened assortment of products, country pop moved to urban Not all regions profited from Green Revolution - reasons (overdue research exertion, incredible scope of developing conditions) Fig 8.12 - hereditary differing qualities of yield assortments , less than 100 species give the greater part of the world's nourishment supply. Asia - increases tumbled off - minimal prime land, less water, unfavorable ecol. also, social results. Indeed, even biotech can't help (buyers' resistance..) Loss of residential sustenance accessibility

Slide 9

Women and Green Revolution Women and the Green Revolution Women develop in any event half of the world's nourishment and up to 80% in Africa.. Ladies perform around 90% of the world in Africa. Men leave for urban for different employments, ladies workload is expanding. Ladies for the most part don't impart similarly to men in the prizes from horticulture. Working longer hours and less livelihoods because of social and sparing components. How ladies can profit by the Green Revolution?