【摘要】 杨梅在常规栽培模式下,栽植密度为 330 ~ 400 株/hm2,第 4 年开始少量投入产出,第 8 年开始获取纯利润,第 13 年产值达 8.0 万元/hm2;投资年平均效益系数为 0.26 元,年平均投入产出比 1∶3.43。杨梅—茶—桃混交林模式,初植密度为杨梅 200 株/hm2,茶 18 000 株/hm2,桃 600 株/ hm2,造林后第 3 年少量产出,第 5 年即可获取纯利润,投资回收期比纯林栽培模式缩短 3a,第 13 年产值达 10.5 万元/hm2;投资年平均效益系数为 0.35 元,年平均投入产出比 1∶4.56。可见,与纯林相比,混交林模式具有投入产出早、投本少、投资回收快、投资效益系数高等特点。混交林尚有较好的社会效益和生态效益。更多还原

【Abstract】 With the density of 330~400 tree/hm2, Chinese bayberry forest has a few products in the 4th year. From the 8th year, it can gain the net-profit, and the annual output value reaches 80 thousands yuan RMB/ hm2 in the 13th year. The annual rate of input/output is 1:10. In the mixed forest of Chinese bayberry-tea-peach, the density of Chinese bayberry is 200 tree/ hm2, tea 18 000 tree/ hm2, peach 600 tree/ hm2. The mixed forest has a few products in the 3rd year and gains the net-profit in the 5th year. The output value reaches 105 thousands yuan/ hm2 in the 13th year. The rate of input/output tops 1:4.56. As the result, mixed forest has better economic and ecological benefits.更多还原