Three Armeniaca species were investigated in 20 provinces of China,including Inner Mongolia,Liaoning,Hebei,et al.,from 2008 to 2009.The results are as follows:(1)Armeniaca sibirica is distributed in most areas of north China(N37°17′-N50°24′,E105°56′-E130°20′).It concentrates in the southeast of Inner Mongolia,the west of Liaoning,the north of Hebei,and the individual apricot kernel yield is 59.30-730.20 g.The front of leaves have long tines which increase along with the increasing of the longitude and decreasing of the latitude.(2)The A.mandshurica is dispersed in the northeast of China.The individual apricot kernel yield is 304.23-1 586.80 g.It is arbor with thick bark phloem.Its fruit stem is comparatively long.(3)The A.vulgaris var.ansu distribution area is exhibited as wide strip of northeast-southwest trend,bestriding two key heat zone of middle temperature and warm temperature over northeast,northwest,north China and southwest areas(except for Tibetan Plateau with elevation over 4 000 m).The A.vulgaris var.ansu distribution is not centralized mostly.The individual apricot kernel yield is 130.00-2 574.50 g.The size of leaves is related to the geographic distribution.In view of actuality of the Armeniaca resource in China,some recommendations of its rational exploitation and utilization are put forward.
