我国果树主要栽植在山地，大部分果园分布在山区，对充分合理利用山地和防止水土流失，提高经济和生态效益，都起到了十分重要的作用。但由于山地地形复杂、地势变化大、土层薄、肥力低、坡度大、水土流失严重、保肥保水性差等不利因素，严重影响着果树生长和结果，直接制约了 The fruit trees in our country are mostly planted in the mountainous areas, most of the orchards are distributed in the mountainous areas, which play an important role in making full and reasonable use of mountainous areas and preventing soil erosion and improving economic and ecological benefits. However, due to the complex terrain of mountainous terrain, large changes in terrain, thin soil layers, low fertility, large slope, serious soil erosion, poor retention of water and fertilizer, which seriously affect the growth and fruiting of fruit trees.