桉-农复合经营对甘蔗产量的影响及其经济效益分析

针对目前林农复合经营中采用的大宽行模式,研究在不同的林带距和不同的树蔗距下,桉树对甘蔗产量的影响,并测算其经济效益。结果表明:在大宽行模式中,桉树对甘蔗的产量有一定影响,林带带距越小,影响越明显,合理的带距不小于12m;桉树与甘蔗的距离也对甘蔗的产量有影响,合理的树蔗距不小于4 m;总体而言,复合经营的经济效益比单林经营、单农经营好。

Effect of Eucalyptus-crop Agroforestry Patterns on Sugarcane Yield and Their Economic Results

Sugar canes were planted under different forest strip distances and Eucalyptus-sugarcane distances to observe the effect of Eucalyptus-crop agroforestry patterns on sugarcane yield,and its economic results were measured.The results indicated that strip distances and Eucalyptus-sugarcane distances gave certain effect on sugarcane yield.When the forest strip distance was smaller,the effect on yield was more obvious.The agroforestry patterns were found better if sugarcanes were planted more than 12 m between the forests and more than 4 m between Eucalyptus and sugarcane.The economic results of agroforestry patterns were better than mono-silviculture or single crop farming.