Characteristics: Mainly distributed in the middle and lower part of the mountain slopes or the bottom of the valleys and river valleys. Distribution area of the climate is relatively warm, humid, the average annual temperature of 4.0 - 4.5 ℃, the highest temperature of 31 ℃, the lowest temperature -25 ℃; annual precipitation of 300 - 600 mm. The soil is mountain black-brown forest soil. Xinjiang wild apple like warm, humid climate, in the annual precipitation of 500 - 600 mm in the Ili Valley in the lower part of the mountainous area or low mountain belt on the upper shady slopes, semi-shady slopes or river valleys, often constitutes a mountainous deciduous broad-leaved forest belt. And in the precipitation is only about 300 millimeters of the western Junggar mountains and the eastern end of the Barrek Mountain shady slopes, semi-shady slopes or river valleys, more blocky or sheet-like distribution. Light-loving, intolerant of shade, in the degree of depression more than 0.7 above the dense forest, the understory seedlings are few, natural regeneration is poor. Flowering period of 4--June, fruiting period of 8--October.