Showing posts with label Human Migration. Show all posts
Showing posts with label Human Migration. Show all posts

Monday, November 23, 2009

DEEP SEA TRENCHES

DEEP SEA TRENCHES

Name Deepest Point
Mariana Trench Challenger Deep
(West Pacific)
Tonga-Kermadec Trench Vityaz 11 (Tonga)
(South Pacific)
Kuril-Kamchatka Trench
(West Pacific)
Philippine Trench Galathea Deep
(West Pacific)
Idzu-Bonin Trench
(sometimes included
in the Japan Trench)
New Hebrides Trench North Trench
(South Pacific).
Solomon or New Britain
Trench (South Pacific)
Puerto Rico Trench Milwaukee Deep
(West Atlantic)
Yap Trench (West Pacific)
Japan Trench
(West Pacific)
South Sandwich Trench Meteor Deep
(South Atlantic)
Aleutian Trench
(North Pacific)
Peru-Chile (Atacama) Bartholomew Deep
Trench (East Pacific)
Palau Trench (sometimes
included in the Yap Trench)

Sunday, November 22, 2009

IMPACT OF MIGRATION ON MAJOR CITIES

IMPACT OF MIGRATION ON MAJOR CITIES In India problems related to massive poverty-induced migration from rural to the major metros are due to 'lopsided, unplanned and over-congested urbanisation' which has caused overall deterioration of urban environment in India.

Most of the metropolitan cities are growing at an alarmingly fast rate and, according to UN estimates, most of them will double their population in the next 12 to 15 years. Increasing migration of the poor to urban areas has already led to urban involution, decay, poverty, exploita­tion, insecurity and inequality among the migrant popu­lation. As most of the migrants are poor, landless, illiterate and lack basic skills, they fail to get jobs in the capital­intensive production system of urban India. These un­skilled migrants are absorbed by the unorganised sectors characterised by low productivity, tremendous competition, poor pay and insecurity. Even if such migrations help the rur'i11 poor to avoid starvation death, it causes a huge loss in terms of human resources and national potential. As a consequence, major urban centres of India have become much involutJd, not evoluted, Le" they have grown merely in population, not in prosperity. Mega-cities look like "over-blown villages without urban culture and urban functional characteristics".

During the last few decades, acute problems have arisen--extreme housing scarcities, and frequent break­down of essential municipal services such as water supply, elecmtity, sewerage, transport-d.ue to the massive pres­sure of population on the basic urban facilities.

Tht$ problemp caused by migration can be checked by curbin~ population growth and promoting a balanced economic development in the country. It is imperative that the government, NGOs, scholars, planners, policy-makers and administrators cooperate and formulate well-thought out action plans for remedying the situation.

TRENDS OF MIGRATION

TRENDS OF MIGRATION The pattern of internal migration in India may be divided into the fonowing: intra-state movement in the case of move­ment of people within the state itself, and inter-state movement when the migrants cross the borders of 'a state and settle down in another state.
The volume of inter-state migration in India is less than intra-state migration. Data analysis suggests that a major portion of intra-state migrants belonged to rural India while in the case of inter-st;ate category rural migrants accounted for more than 60 per cent.

Out-migration Imostly takes place from underdevel­oped states like Rajasthan, Uttar Pradesh, Bihar, Andhra Pradesh and Kerala. Migrants had a tendency to move into compara~ively dt!veloped regions like West Bengal, Maharashtra, the National Capital Territory of Delhi, Chandigarh, and Andaman and, Nicobar Islands. Assam and Madhya Pradesh also witnessed in-migration but on a lesser scale.
Uneven development between regiorls is believed to be the major cause of migration. It is unfortunate that most of the major metropolitan cities of India are currently witnessing heavy in-migration and consequent population growth due to work opportunities offered by these cities. Cities like Delhi, for example, are badly affected by huge influx of migrants.

MIGRATION

MIGRATION
The movement of population from one re­gion to another is termed as migration. Tempo­rary migration encompasses annual, seasonal or even daily movements of population between two cities for example. Migration can be divided into the following types on the basis of their origin and destination:
(a) rural to rural R -> R (b) rural to urban R -> U
(c) urban to urban U -> U (d) urban to rural U -> R
In some cases, the population moves from
villages to small towns and then to a bigger metropolitan city: this may be termed 'step-wise migration'. Migration due to a number of attrac­tions offered by a city is interpreted as migration due to "push" factors; on the other hand, people also move out of villages due to "pull" factors, such as, better opportunities of employment, education, recreation, health care facilities, busi­ness opportunities, etc., outside villages or some such regions. Some "push" factors are unemploy­ment, poverty, social insecurity, political instabil­ity, ethnic conflicts, etc.