为探讨不同树体结构对光能的利用情况,我们于1979年8月,分别在大康县园艺场等五处,以7—12年生金冠、红星两个品种为材料,测定了不同树体结构(①上小、下大、外稀里密;②上大、下小、外密里稀;③上小、下大、未及时控制,过多过大的层间辅养枝)、不同部位(1米、2 In order to explore the utilization of light energy by different tree structures, we measured the biomass of different tree species in August of 1979 at five locations, including the horticultural field of Dakang County, Structure (① on the small, the next large, thin and dense in the outer; ② on the big, the next small, the outer dense dilute; ③ small, big under, not timely control, Site (1 m, 2