* Dollar down; global shares gain
* China export slump provides reminder of global uncertainty
* Sterling remains pressured as QE kicks off (Changes byline, dateline; previous LONDON, adds quotes, updates prices)
By Gertrude Chavez-Dreyfuss
NEW YORK, March 11 (Reuters) - The dollar fell broadly on Wednesday, as risk appetite improved with the rise in stock markets worldwide, modestly dampening the greenback's safe-haven appeal.
Gains in emerging market units such as the Hungarian forint and Polish zloty versus the dollar also weighed on the U.S. currency, analysts said.
"It's the same story. Stocks are better bid and so there's some risk appetite coming back. That's helping the dollar," said Boris Schlossberg, director of currency research at GFT in New York.
European shares turned positive <
>, with banks leading the way as U.S. stocks edged up. After an early stumble, stocks were following Tuesday's rally on news Citigroup was profitable in the first two months of 2009 [ ].In early New York trading, the euro rose 0.9 percent to $1.2780 <EUR=>, having touched a two-week high of $1.2823 on trading platform EBS on Tuesday, while the dollar was down 0.6 percent at 98.06 yen <JPY=>.
The dollar fell 0.5 percent against the Swiss franc to 1.1541 <CHF=>, while the Australian and New Zealand dollars rose sharply against the greenback to US$0.6509 <AUD=> and US$0.5060 <NZD=>, respectively.
The dollar fell 0.7 percent on the day against a basket of six major currencies to 87.923 <.DXY>. It struck a three-year peak on the index last week, at 89.624.
The euro's gains could be limited, however as markets got a timely reminder of the sickly state of global economic growth after data earlier in the global session showed a slump in economic powerhouse China's exports in February. [
]."The dramatic deterioration in China's trade balance suggests that caution remains recommended and a lasting reversal in the (strong) dollar trend is unlikely,' said Commerzbank in a research note.
GFT's Schlossberg added that the Chinese trade report has cast doubts on China's ability to finance the U.S. current account deficit and in the long run could weigh on the dollar.
"The concern is that maybe China will not be able to generate massive amounts of foreign exchange capital which can then be recycled to U.S. Treasury securities. That is the big fear factor that hangs over the dollar."
Sterling, meanwhile, stayed under pressure against the single European currency, hovering near 5-1/2 week lows as Britain officially started its quantitative easing program to boost money supply.
The pound hit a six-week low against the dollar at $1.3658 <GBP=>. It last traded at $1.3833, up 0.6 percent on the day. The euro was up 0.3 percent versus sterling at 92.42 pence <EURGBP=>. (Additional reporting by Veronica Brown in London; Editing by Andrea Ricci)