March 13 (Reuters) - Dollar Tree ( DLTR ) said on

Wednesday it would close 600 Family Dollar Stores in the first

half of the year and roughly 370 more stores due to lease

expiry.

The company said it also took a $594.4 million charge for

portfolio optimization review, a $1.07 billion goodwill

impairment charge and a $950 million trade name intangible asset

impairment charge.