Breaking News-RTRS-China declares emergency as drought bites

BEIJING, Feb 5 (Reuters) - China has declared an emergency over a long dry spell threatening crops and farmers' incomes in the rural heartland, official media said on Thursday.
The drought gripping parts of central and northern China has sent Zhengzhou wheat futures prices up 5 percent this week but physical prices have not moved, with most investors confident the country's reserves and last year's big harvest can offset any fall in wheat production this spring.