在金沙江干热河谷退化坡地利用雨养条件栽植酸角的 5种密度试验表明 ,种植密度大 ,水保效益和产量较高 ,但果实品质差 ,经济效益较低 ;种植密度小 ,水保效益和产量较低 ,果实品质较好。综合各种因素 ,在中度退化坡地种植酸角以 6m× 6m栽种密度最佳。 Five density experiments of planting acid horns using rainfed conditions in degraded slopes of dry-hot valleys of the Jinsha River showed that planting densities were high, soil and water conservation benefits and yields were high, but the fruit quality was poor and the economic benefits were low. The planting density was small and the benefit of water conservation And the yield is lower, the fruit quality is better. Based on various factors, planting density of 6m × 6m was the best in the moderately degraded slopes.