Abstract: According to ecological point of view,the tea plantations in Qinling-Bashan mountains weregrouped into following types:pure tea plantation,chestnut+tea plantation,white mulberry+tea plantation,tung tree+tea plantation,Chinese toon+tea plantation,tung tree+tea+legumeplantation and pine+tea plantation.The relationship of tea growth to the mixed plants grownwith it in each plantation was discussed.Based on the study,“the tree+bush(tea)+grasses” isthe best choice of setting up tea plantation in the mountain area.

Key words: Cotton plant, Condensed tannin, Determination methods