描述:
f the
Qingzang plateau.Gannan is adjacent to Qinghai province in west,to Sichuan province
in south,to the southern of Gansu province in east and to the Loess plateau in
north.Mountainous country and plateau are its major landforms types.It is a highest
描述:
ry of agricultural development in China has a
special significance. China introduced some of the new species, new technology and new
knowledge from the West to transform traditional agriculture and improve production
efficiency.