Gansu province is located in the Northwest of China. and has a typical Gobi-Greenland climate:
※ Annual rainfall is not more than 100mm
※The coldest temperature is lower than -30 ℃
※Plenty and strong solar radiation and big difference of the temperature between day time and night time bring a very good quality of agricultural products which have enough accumulation of nutrition.
※Irrigation from snow mountain bring a very stable production of agriculture.