UPDATE 1-Abu Dhabi economic growth seen slowing to 3.9 pct in 2012

* Previous forecast was 4.5-5 pct for 2012

* Growth should accelerate to 5.7 pct on average in

2013-2016

* Spending redirected to social projects

(Adds quotes, details, background)

ABU DHABI, Sept 24 (Reuters) - Abu Dhabi's economy is likely

to grow 3.9 percent this year, lagging previous forecasts, but

should pick up in the next few years helped by further

diversification away from oil, the Department of Economic

Development said on Monday.

A drop in oil production this year is expected to curb

economic growth in Abu Dhabi, the largest of the seven members

of the United Arab Emirates. The department, in an inaugural

report on Abu Dhabi's development outlook, said the government

should keep spending to support growth although it said the

focus of spending was shifting to social projects.

Abu Dhabi accounts for 65 percent of UAE economic output and

almost all of its oil production.

The department forecast economic growth would accelerate to

average 5.7 percent annually in 2013-2016.

Non-oil gross domestic product would rise 5.5 percent this

year, accelerating to an average of 6.5 percent in the 2013-2016

period on a projected increase in private sector investment.

"The non-oil sector will be the prime driver (of growth from

2012 onwards) with investments in industry, tourism,

infrastructure and others. The oil sector will also contribute

to the GDP," Mohamed Omar Abdulla, undersecretary at the

department, told reporters.

"With the diversification going on, the contribution of the

non-oil sector should be greater than oil," he said, without

saying when non-oil output would overtake the oil sector.

Abu Dhabi does not regularly release inflation-adjusted GDP

data, but Abdulla estimated last October that the emirate's

economy would expand about 4.5 percent in 2011 and 4.5-5 percent

in 2012.

"Spending has been directed to very important areas like

education, health and infrastructure, so mainly these three

areas," Abdulla told a news conference on the report.

He did not say what level of government expenditure - a key

driver of the emirate's economic growth - was projected for

2012.

The UAE has not been hit by the social unrest seen elsewhere

in the Middle East in the past year, but it has raised public

spending to avert tensions. It has a cradle-to-grave welfare

system and its per capita income of $48,200 is one of the

highest in the world.

Government spending in Abu Dhabi jumped 21 percent last year

to an estimated 314.7 billion dirhams ($86 billion), while

revenues shot up 46 percent to 280.9 billion, a report by the

International Monetary Fund based on government figures showed

in June.

The coastal desert emirate of some 2 million people, which

accounts for around 78 percent of overall spending in the UAE

and is home to one of the world's largest sovereign wealth

funds, does not publish its yearly budget plans and outcomes.

Analysts polled by Reuters in July forecast economic

expansion in the UAE, the world's No. 3 oil exporter, to slow to

3.2 percent in 2012 from 4.2 percent last year due to the impact

of weak global growth and lower oil production that was boosted

in 2011 due to a civil war in Libya.

($1 = 3.673 UAE dirhams)

(Reporting by Stanley Carvalho and Martin Dokoupil; Writing by

Martin Dokoupil; Editing by Susan Fenton)